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From YouTube: SJAA ONLINE Armchair Star Party May 23, 2020
Description
San Jose Astronomical Association 1st online Armchair Starparty. May 23rd, 2020.
A
Five,
all
right,
I'll
give
this
another
three
seconds.
Three,
two
one:
okay,
your
life
is
a
lag
in
there
all
right
good
evening.
Everyone
welcome
to
our
very
first
I'm,
just
a
party.
We
are
San
Jose
astronomical
Association,
and
this
is
the
very
first
time
we
are
bringing
this
event
to
you
and
we
are
really
glad
you
all
are
joining
us
here
today.
We
have
a
great
great
show
for
you.
We
have
a
number
of
hours
and
SSgA
members
waiting
to
present
to
you.
I
hope
you
enjoy
this
and
I
also
welcome
at
this
point.
A
Okay,
so
before
we
get
started
on
this,
I
want
to
give
you
a
couple
tips
to
make
this
experience
better.
For
you,
the
first
one
is
try
to
find
your
dark
theme
in
the
YouTube.
It's
a
little
button
there
on
the
right
hand,
side
and
turn
it
on,
because
we're
gonna
show
themes.
That's
pretty
dark
in
the
background,
it'll
be
better
for
you
to
see
those
objects.
The
second
one
I
want
to
give.
You
is
sorry
the
second
one
I
want
to
give.
You
is
the
the
YouTube
quality.
A
A
Okay.
So
while
we
wait
for
probably
feel
fewer
I
start
still
joining
in
to
this
program,
so
let's
I
want
to
just
introduce
our
club
and
talk
a
little
bit
about
this
club
and
what
we
do.
We
are
sending
sales
from
across
society.
We
were
established
in
1954
as
an
educational
organization,
educational
organization,
for
our
members,
as
well
as
the
public,
and
we
are
a
nonprofit
organization.
All
of
us
are
volunteers.
Here
today
doing
this
program.
We
have
number
of
programs
out
there.
We
have
tons
of
public
programs.
A
We
have
a
number
of
members,
only
programs,
so
I'm
going
to
kind
of
go
through
this
reprograms
with
some
notes
on
here
put
down,
so
we
had
tons
of
star
parties.
Normally
they
are
in
person
star
parties,
so
we
have
in
town
star
parties
we
do
about
couple
times
a
month
we
have
starry
night
star
party.
A
We
do
in
the
Rancho
carne
yada
open
space,
preserve
with
in
conjunction
with
the
Santa
Clara
Valley,
open
space
authority,
but
once
and
once
a
month-
and
we
also
have
Stoller
observing
a
binocular
stargazing
pinnacle
star
party
and
I
can
keep
you
know
going
for
the
lesson,
but
this
time
them
for
the
public,
so
not
only
the
for
the
public.
We
also
have
for
the
Bay
Area
schools.
We
have
dedicated
people
in
our
organization
that
goes
for
the
South,
Bay
schools
and
conduct
school
star
parties,
and
then
we
get
to
other
talks.
A
We
have
talks
that
we
have
introductory
talks
as
well
as
advanced
talks
where
we
bring
in
guest
speakers
and
do
these
talks
at
once
a
month.
So
what
else
yeah
we
have
equipment
help
you
give
to
the
public.
We
do
swap
meet
where
you
can
exchange
or
buy
and
sell
your
used
gear
with
the
public,
and
we
also
do
a
newsletter
four
times
a
year.
So
those
are
all
public
things
with
this
club
office.
A
Moving
on
to
our
members,
let
me
get
my
oops.
Ok
name
is
most
good
enough
of
a
member
only
program,
so
we
have
Imaging
Group,
very
robust,
imaging
group
we
do
imaging
is
by
the
ways
astrophotography.
That
program
is
very
strong
in
our
club
and
we
also
do
beginner
training
for
our
members.
We
do
equipment
training
for
our
members,
actually
equipment,
training
and
equipment
loaner,
and
also
we
have
a
member
library.
A
Lastly,
we
do
tons
of
member
only
private
observing
events,
so
those
are
all
member
benefits,
$20
an
ear
and
here's
our
club
website,
SJ
a
dotnet
most
I'd,
be
most
of
our
public
programs.
We
advertise
in
meetup,
calm,
okay,
actually
I
forgot
to
introduce
where
the
club
is
most
of
you
probably
already
know
where
we
are.
We
are
in
San
Jose
in
Hoggy
Park,
but
there
may
be
those
out
there.
That's
joining
us
from
non-locals-
and
you
say,
is
a
suburb
of
south
of
San
Francisco
California
and
this
event
is
new.
A
My
name
is
conch
I.
Am
the
person
usually
organize
the
interns
for
a
party
and
I'm
the
person
who
run
the
lunar
telescope
program
for
members
and
then
comes
Karl
and
Rashi
by
the
way?
Guys
I
can't
see
you
guys,
but
just
kind
of
wave,
you
with
your
hand
or
something
so
show
who
you
are
Karl
and
Russia?
A
Are
our
leaders
in
the
our
dark
sky,
star
party
in
Rancho
Canada,
and
if
you
had
been
there
or
hopefully,
you'll,
go
there
in
the
future
and
you'll
you'll
you
might
meet
Karl
and
cowl
is
the
person
who
knows
the
sky
from
back
of
his
head.
It
doesn't
need
a
map
to
point
things
out
and
Rashi
is
a
guy
who's,
giving
the
the
what's
up
in
the
sky
talk,
and
he
has
a
great
star
chart
that
he
gives
it's
a
star
chart
talk,
so
you
will
see
these
guys
over
there.
A
In
those
events
and
and
then
I'm
gonna
introduce
Glennon,
Bruce,
Clement
Bruce
say
hi
Glenn,
and
these
are
our
imaging
leads.
Our
astrophotography
reads:
like
I,
said
we
have
a
very
robust
program.
We
are
being
in
the
in
the
heart
of
Silicon
Valley,
there's
tons
of
knowledge,
tons
of
members
who
make
great
great
after
photography,
it's
just
rival,
some
of
the
pictures
that
you
would
see
in
from
these
public
telescopes.
A
Then
the
this
wolf
wolf
is
our
solar
program
leader
and
also
he's
the
person
who
conducts
the
astronomy
one-on-one
talk.
So
if
any
of
you
guys
had
this
one
yesterday,
he
did
his
first
talk
online
yesterday
and
then
comes
last,
but
not
it's
very
important
to
members.
Here
we
have
a
SCADA.
Tsukada
is
our
one
of
our
board
members
as
well
as
she
runs
the
guest
speaker
program
for
us
and
Amy
is
our
secretary
as
well
as
our
editor
for
the
ephemeris
our
newsletter.
A
A
I
need
to
mention
a
very
sad
event
here.
There
was
a
somber
note
today
for
all
of
us.
A
few
days
ago,
our
dear
president,
Jerry
Joyce,
passed
away
suddenly
and
he's
he's
one
of
the
people
who
really
pushed
us
to
get
our
programs
into
the
public
into
this
virtual
space,
and
he
he
would
have
been
here.
I'm
sure
he's
looking
down
upon
us
from
somewhere
and
this
program
is,
is
dedicated
for
Jerry
Jerry.
Thank
you.
B
A
So
let
me
kind
of
go
through.
What's
our
plan
today,
we're
gonna
first
Russian
call
going
to
jump
in
they're
going
to
introduce.
Take
you
through
a
little
tour
of
the
night
sky
today,
they're
going
to
also
introduce
you
a
little
bit
to
what
might
be
coming
later
on
in
the
actual
amateur,
observing
part
of
this
program,
and
then
I'll
come
back
in
I
will
introduce
you
a
little
bit
you
to
astronomy
here
and
then
we
will
start
our
armchair
observing
session
in
here.
A
C
A
Get
everybody
will
get
back
together
here
and
we
will
do
a
Q&A
session.
I
urge
you
to
send
your
questions
early.
You,
you
have
access
to
the
YouTube
chat.
Please
send
your
questions
and
we
have
two
or
three
moderators
there
and
they
might
answer
your
questions
or
they
might
take
your
questions
and
we'll
try
to
get
to
as
many
questions
as
possible
at
the
end
of
this
program.
Okay,
so
what
else
so
before
I
get
started?
I'm
gonna
go
back
few
slides
here
for
those
of
you
who
might
be
joining
us
a
little
bit
late.
A
B
D
A
D
My
name
is
rocky
and
I'll
be
co-hosting
this
part
of
the
segment
of
with
Carl
we're
going
to
talk
about
the
night
sky,
and
you
know
before
we
before
we
get
into
things
couple
of
a
couple
of
you,
a
few
things
for
you
guys
we're
gonna
walk
through
some
slides
or
some
material
to
get
you
guys
oriented
and
then,
after
that,
we're
going
to
get
into
a
planetarium
app
called
Stellarium.
Stellarium
is
something
that
you
can
download
on
your
computer.
It's
free!
D
You
can
download
that
and
set
it
up
on
a
variety
of
different
platforms
and
and
learn
about
the
night
sky
and
that's
something
that
will
actually
show
to
you
tonight
now,
as
we
continue
into
this
segment,
one
of
the
big
that
we
always
get.
You
know
what's
up
in
the
night
sky,
so
Carl,
if
you
wanna,
if
you
want
to
help
our
viewers
out
here,
what's
up
in
the
night
sky,
well,.
B
D
Absolutely
right
call
we're
just
scratching
the
surface,
there's
so
much
out.
There
there's
a
whole
universe
with
the
stuff
out
there,
but
when
we
start
talking
about
astronomy,
when
we
look
up
in
the
night
sky,
you
know
we
started
looking
out
engaging
with
our
naked
eyes
when
we
use
binoculars,
we
use
telescopes
or
system
viewing,
and
you
know
to
make
sure
that
that
we,
you
know
we're
able
to
cover
some
topics.
D
Of
course
we
had
to
shrink
that
number
of
stuff
down,
so
so
that
way
we
can
talk
about
it
tonight
now,
let's
start
off
with
our
solar
system
right
our
solar
system.
Well,
first
of
all,
it
is
a
one
star
system.
Our
Sun
happens
to
be
a
yellow,
dwarf
star
and,
of
course
beyond
just
our
star
that
we
get
to
see
during
the
day.
We
also
have
planets.
Earth
is
one
of
the
planets.
We've
got
eight
major
planets
and
a
few
more
planets
Pluto
did
keep
demoted
to
being
a
dwarf
planet.
D
What
else
can
we
see?
We
can
see
satellites
and
you
can
see
asteroids
and
comets
and
stars
come
in
different
configurations.
I
give
the
binary
star
systems.
That
means
two
stars
that
are
doing
a
dance
that
are
gravitationally
bound,
their
multiple
star
systems,
where
you
could
have
three
or
more
stars
that
happen
to
be
back
to
inbound
and
then
of
course,
stars.
You
know
just
like
just
like
celebrities.
Now
they
love
friends,
they
like
to
congregate
in
groups.
So
when
you've
got
just
a
few
hundred
friends,
there
are
just
no
thousands.
D
You
know
sparsely
this
person,
the
night
sky.
Those
are
open
clusters,
but
then
you've
got
stars
that
go
to
a
concert
together,
then
that
mosh
pit
but
densely
packed
having
a
lot
of
fun.
Well,
you
know
when
you
end
up
with
thousands
or
tens
of
thousands
or
hundreds
of
thousands
of
stars
in
these
clusters.
They're
called
globular
clusters,
and
these
are
ancient
clusters
in
the
night
sky,
right,
they're,
rising
as
our
galaxy
or
even
older.
D
Some
theories
primarily
state
that
these
are
cores
of
smaller
galaxies
that
are,
there
are
remnants
of
cores
of
galaxies
that
are
now
orbiting
our
galaxy,
because
the
rest
of
it
is
pretty
much
consumed
by
the
all
accountancy.
Now,
of
course,
we've
got
constellations
in
the
night
sky.
We
know
about
the
twelve
is
a
diet
with
constellations
are
about
88
constellations
that
have
been
documented
by
the
International
Astronomical
Union,
and
then
within
these
constellations
we
find
patterns.
Human
recognizable
patterns,
like
the
pan.
E
D
Panhandle
and
the
Big
Dipper
and
those
are
asterisms
right.
We've
got
the
Sagittarius
teapot
as
well.
You
know,
and
that
will
come
up
later
on
in
the
summer
and
we'll
get
to
see
that
in
a
future
stop
you've
got
star
clouds.
We've
got
nebulae
large
clouds
of
gas
and
dust
and
then
of
course,
you've
got
these
massive
containers
called
galaxies.
If
I
contain
all
of
this
wonderful
stuff
in
the
night
sky,
now
we
are
at
May
23rd
that
happens
to
be
today.
So
let's
talk
about
some
planetary
highlights.
Carl.
B
D
Yeah
and
then
you've
got
the
other
moon
in
a
very,
very
thin
waxing
crescent.
The
moon
shows
different
phases
as
orbits
the
earth
and
we'll
talk
about
that
in
a
little
bit
and
we'll
also
talk
about
what
you
know
what
it
means
when,
when
the
moon
is
growing
from
new
moon
to
full
moon
and
then
back
down
again
we'll
talk
about
how
I
happen
to
remember
it,
but
there
is
also
an
orientation
of
a
few
planets
in
the
morning
sky
Carl.
You
talk
about
that
phosphorus
yeah.
B
D
Now,
for
all
of
you
that
grew
up
with
erotic
it,
you
guys
do
remember,
wax
on
wax
off
I've
modified
that
a
little
bit
with
wax
on
and
wane
off,
and
that's
pretty
much
how
I
remember
the
the
phases
of
the
Moon
right.
So
when
you're
going
from
new
moon
all
the
way
to
full
moon,
it
is
the
waxing
time
and
then
you're
winging
down
back
to
the
moon.
So
you
got
the
waxing
crescent
to
start
off
with
then
you've
got
the
first
quarter.
D
Relaxing
give
us
the
moon,
the
waning
gibbous,
the
third
quarter
of
the
last
quarter,
the
the
waning
crescent
and
then
back
down
to
movement.
So
we
literally
just
passed
new
moon,
so
we're
at
a
very,
very
thin
Crescent
in
the
lights
back
then
it
comes
to
the
moon
and,
of
course,
interesting
fact
that
when
you
look
at
the
same
moon
phase
from
the
northern
hemisphere,
this
is
the
southern
hemisphere.
It
is
180
degrees
flipped.
D
So
whenever
you're
talking
to
somebody
that
happens
to
be
on
the
other
side
of
the
other
world
on
the
other
hemisphere,
just
keep
in
mind
that
they're,
seeing
opposite
of
what
you're
saying.
Well,
when
you
look
at
the
moon,
one
big
question
that
we
always
get
is
how
much
can
I
see
you
would
with
the
naked
eye,
and
you
know
that
does
there
are
a
lot
of
factors
that
impact
nights
light
conditions,
but
before
we
get
into
that,
you
know.
Let's
take
a
look
at
this
first
column
here.
This
is
the
inner
city
sky.
D
So
when
you
happen
to
be
in
the
red
light,
polluted
city,
you're,
just
gonna
see
very
few
bright
objects
in
the
night
sky
and
then,
as
you
go
down
into
suburbia
gonna,
see
a
lot
more
in
the
night
sky
and
then
getting
out
an
excellent
dark
sky
site.
You
can
see
definitely
a
lot
more
right,
not
just
the
stars,
but
you
can
start
to
see
you
can
see
the
Milky
Way.
You
know
during
the
summer
months
coming
up
and
hints
of
many
other
different
structures
in
the
night
sky,
but
really
how
much
is
that
right?
D
So
if
we
take
a
look
at
San,
Jose
and
a
good
day
with
good
weather,
we
happen
to
see
up
to
a
positive
3.
A
positive
for
man
apparent
magnitude
is
the
brightness
of
objects
in
the
night
sky
as
seen
from
Earth.
So
we
can
pretty
much
see
somewhere
in
less
than
600
stars
blessing.
The
other
boat
objects
in
the
night
sky
in
San
Jose
on
a
good
night,
but
at
a
very
dark
sky
site.
D
We've
already
talked
about
like
pollution,
it
could
be
weather
cloud
cover,
humidity,
wind
dust
and
then,
finally,
for
all
the
people
that
have
seen
independence
that
you
could
actually
have
aliens
walking
the
view
of
your
night
sky
with
a
massive
ship.
And
if
that
is
indeed
the
case,
I'm
sure
you
have
other
problems.
But
if
you
happen
to
be
an
asteroid,
refer
like
Graham
and
Bruce,
and
some
of
the
others
that
are
on
there,
you
might.
A
D
D
D
B
D
B
D
Know
what
that's
a
very
good
point.
So
we
are
in
a
planetary
map,
so
we
can
do
a
little
bit
of
magic
here,
technical
magic.
We
can
go
ahead
and
hide
and
take
away
the
ground
and
turn
on
the
horizon.
So
let's
go
ahead
and
do
that.
I'm
gonna
take
off
take
the
ground
away
and
we
happen
to
be
right
here.
I
think
we
need
to
go
to
you.
D
E
D
Are
in
the
right
location,
I
have
a
feeling
you
know,
so
you
can
see
that
Murphy,
Venus
and
moon
happen
to
be
very,
very
low
to
the
horizon.
There
zoom
in
just
a
little
bit
here
so
Karl.
What
should
we
take
a
look
at
first
and
take
a
look
at
Mina
all
right?
Let's
take
a
look
at
Venus
while
I
go
with
it
and
get
Mina
centered
in
the
zoom,
and
you
want
to
give
our
viewers
a
few
facts
about
Venus.
B
D
B
D
It's
not
a
star.
It
happens
to
be
a
kind
of
our
ancestors
denominator
right.
So,
but
it's
very
very
interesting
how
it
shows
it
both
in
the
evening
and
sometimes
in
the
morning
and
we'll
actually
talk
about,
because
not
only
the
Venus
doesn't
exhibit
phases,
but
the
position
of
Venus
in
its
orbit
actually
also
dictates
where
their
chosen
evening
or
chosen
move
in
the
morning.
What
else
you
got
anything
else
for
you,
Oh.
B
D
D
D
D
B
D
E
D
D
That's
interesting:
you
call
that
out
right,
so
the
Astros
and
you're
really
calling
out
is
Japan
and
the
Panhandle
that
happens
to
be
in
person
major
or
the
Big
Dipper
right
and
then
and
then
let's
find
that
and
you've
got
you've
got
this
these
stars
here.
They
sort
of
kind
of
find
it
on
the
pan
upside
down
and
you
cut
a
hand
handle
oh
wait
a
second.
We
are
using
a
common
camera
I'm,
not
just
looking
at
the
night
sky.
D
We
can
do
technical
magic
if
you
turn
on
the
lights,
but
the
lines
on
the
constellations
can
do
them
there.
We
go
I
really
wish.
We
could
do
this
in
the
real
night
sky
right
we
go,
keep
us
working,
you
could
turn
on
the
lines,
but
you
know
we
have
to
use
hawks
and
star
trucks
and
finest
tears
for
that.
So
so,
if
ever
you
can
see
this
in
the
night
sky
or
a
teasing
in
stellarium,
we've
got
the
pan
and
then
the
Panhandle
I
think
over
here
and
that's
nursing
meter.
D
This
pan
and
pan
handle
is
an
asterism
and
it's
about
1/3
of
the
total
size
of
person
made.
These
two
stars
be
the
rightmost
stars
of
Japan,
our
Moroccan
Dube
they're
pointy
stars,
and
they
point
straight
down:
Googlers
the
the
North
Pole's
bar
and
that
happens
to
be
the
field
store,
a
person
might
be
over
there.
It's
good
come
back
from
there.
You
go
alright.
D
So
while
we're
here,
let
me
go
ahead
and
turn
the
constellation
part
on
all
right,
so
everybody
can
see
what
the
big
there
and
really
bear
look,
and
now
you
can
see
the
Big
Bear
is
pretty
much
upside
down
sort
of,
and
then
you've
got
Ursa
Minor
going
straight
up
right,
underneath
rock
with
a
dragon
the
wrath
of
the
dragon.
This
constellation
primarily
surrounds
Ursa
Minor,
protecting
the
middle
there.
D
E
D
D
A
D
Okay,
I,
don't
know
where
that
noise
is
coming
from,
but
let's
just
continue
on
yeah,
okay,
yeah,
all
right.
So
coming
back
to
this,
what
I've
done
here
is
I've
turned
the
asterism
feature
on
and
you
can
see
this
asterism
Club
engagement
ring
duplex.
It's
a
bunch
of
stars
this
for
kind
of
form
to
color
the
base.
Apparently
any
and
claryce
happens
to
be
that
gonna
block
at
the
top
of
the
Ring.
It's
a
great
pattern
to
look
at
even
in
the
night
sky
you
can
actually
even
see
is
good
but
not
theirs.
D
And,
of
course,
one
of
our
older
yesterday
presidents
tried
to
offer
this
engagement
is
what
she
wanted
to
do
a
drink.
She
said
so
for
all
the
guys
out
there.
If
you're
gonna
try
to
offer
this
ring
to
you
to
your
partner.
Please
don't
do
that.
It's
not
the
color
we're
in
the
vicinity
of
or
someone
in
there
Emerson
major.
What
else.
B
B
D
In
the
bootes
constellation
right,
it's
it's
a
massive.
It's
a
it's
an
orange
giant!
It's
a
beautiful
start.
Take
a
look
at
in
the
course.
When
you
take
a
look
at
it
visually,
you
can
act
in
depth,
I
think
just
like
one
just
lightly
read
when
you
are
looking
at
it
and
it
is
in
the
Buddhist
constellation
and
the
Buddhist
conservation
happens
to
look
like
it
clicked.
So,
of
course,
when
you
join
the
lines
here,
you
can
see
sort
of
kind
of
a
kite
pattern.
D
A
D
All
right,
while
we
go
and
do
that
so
from
the
panhandle
of
Ursa
Major,
you
can
park
to
our
Taurus
and
then
you
can
go
ahead
and
spike
down
to
spike
that
so
I'm
going
to
go
ahead
and
turn
that
constellation
arc
back
on.
And
you
can
take
a
look
at
this
in
a
different
light.
So
you
got
Ursa
Major.
You
got
the
pan
and
then
the
Panhandle
from
the
Panhandle.
You
can
talk
to
our
Kurtis
duties
and
then
you
can
go
ahead
and
spike
down
the
spike
up.
D
Now,
of
course,
one
of
the
other
things
to
keep
in
mind
is
we've
got
a
layer
of
the
heart
constellation
coming
up
and
there's
a
great
store
in
in
Lyra
called
Baby
Gap.
When
you
go
from
Arcturus
down
towards
Vega,
you
can
actually
cross
through
Corona
borealis,
which
is
a
bunch
of
stars
that
look
like
the
big
smiley
face
in
the
night
sky,
and
that
is
the
event
of
them
from
and
then
you'll
pass
through
this
keystone
for
kiddies
in
the
herpes
translation,
and
then
you
finally
get
to
all
right.
A
B
A
D
D
While
we
go
and
do
that,
let
me
go
ahead
and
see
the
Cheryl
sorry
guys
for
the
second
for
difficulties,
and
let's
talk
about
some
of
the
objects
that
we're
gonna
be
taking
a
look
at
later
on
tonight.
So
there
is
one
object:
it's
a
planetary
nebula
that
happens
to
be
right
below
the
the
the
pan
of
person.
D
Major
and
let's
see,
if
I
can
zoom
in
and
find
you
that
happens
to
be
the
owl,
it's
a
beautiful,
contrary,
nebula
and
of
course
we
do
have
a
couple
of
items
that
have
a
beautiful
image
of
this
of
this
nebula.
So
as
you
can
see,
I'm
gonna
zoom
back
out
again,
this
is
Japan
of
the
of
the
asterism
and
you've.
Gotten
rock
you've
got
back
there
right
here
and
then
you
like
close
to
the
rock
you
can
actually
see
the
value
in
a
second
now
below
the
owl
nebula
towards
maroc.
D
D
But
nonetheless,
the
the
owl
nebula
is
something
that
we'll
be
taking
a
look
at
a
planetary.
Nebula
was
the
the
name.
Conferring
is
what
happens
to
be
in
this
name.
That
has
nothing
to
do
with
planets,
but
it
is
a
beautiful
meddler
that
is
created
during
the
red
giant
star
thing.
In
the
last
field,
its
life
becomes
unstable
and
then
it
sheds
the
outer
layers
of.
E
D
D
D
C
D
It
about
that
again
and
it's
reorient
ourselves
in
no
time
so
we're
looking
north
we've
got
versa.
Minor,
like
here,
we've
got
Artemisia
up
top.
We
did
the
trek
to
our
Taurus
mid
spike
to
Spica
from
Arcturus
that
that
is
in
the
bootes
constellation.
That
looks
like
the
kite.
We
acted
to
us
our
way
down
to
there
you
go,
but
then,
on
the
other
side,
we've
got
the
Gemini
twins
and
we
have
cancer.
Now,
in
cancer
itself,
we've
got
a
beautiful,
open
cluster
of
stars
called
the
Beehive
buster.
D
E
A
E
D
D
We
have
a
fun
exercise
plan
for
you
as
well
and
we'll
get
to
that,
but
second
something
that
we
actually
want
you
to
do
when
you
get
out
there
tonight
after
the
show
things
that
we
want
me
to
go
ahead
and
find
ensure,
even
after
what
you've
gone
through
or
seen
today,
you
should
be
able
to
get
with
some
of
that.
Right
will
be
very
quickly,
but
as
we
learn
about
the
night
sky,
what
are
some
resources
that
you
can
really
with
that?
D
But
you've
got
you,
don't
look
so
you
got
star
talks,
you
got
fun
skiers,
but
of
course
you
got
apps
a
structure
and
then,
of
course,
you've
got
another
option
to
join
and
create
it,
but
here
to
help
but
help
with
parakeet
we
all
get
together
and
that's
how
we
get
to
learn
into
its
paw,
be
keeping
them.
So
now
that
said,
let's
go
back
to
the
deck
and
take
a
look
at
a
couple
of
quick
things.
D
Of
course,
this
is
not
to
scale,
but
this
is
you
know,
picking
at
a
very
quick
look
at
the
orbits
of
our
major
planets
Jupiter
takes
about
12
years
to
go
around
the
Sun.
You
know
earth
of
course,
alien
65
days.
So
when
you
take
a
look
adjectives,
a
bball
gears
and
comparing
the
other's
work
88
days,
Venus's
that
to
inform
five
days
birth,
weight
65
days,
we
all
know
that
we
live
it
Mars
about
sixteen.
Eighty,
seven
days,
keeper,
twelve
years,
seven,
twenty
nine
years
we're
honest
eighty-four
years
to
make
one
more
back
and.
E
D
D
On
exercise,
you
know
we
already
talked
about
this
getting
from
Ursa
Major
or
the
pan
and
Panhandle
down
to
Claire's,
going
over
to
our
curse,
talking
to
our
curse
from
the
panhandle.
If
I
can,
despite
that
and
then
finding
your
way
down
to
Corona
borealis,
that
food
smiley
face
in
mine
sky
down
to
go,
please
and.
E
D
E
D
The
way
you
get
feet,
but
this
is
the
nine
p.m.
skies.
So
when
you
get
out
tonight
around
10:30
can
fold
yourself.
This
guy
would
have
shifted
a
little
bit
and
this
is
big
enough,
but
it
would
look
like
them.
They
would
have
brought
down
here
for
them,
though,
in
the
western
horizon
and
some
more
constellations
with
me.
D
B
D
D
You
can
download
the
evening
sky
map
for
the
month
for
the
northern
hemisphere
or
the
southern
hemisphere,
and
that
would
really
help
you
very
quickly
get
out
there
and
start
saw
gazing
learning
a
translations
and
you
home
agent
stones
all
right
folks,
now
to
Astro
gear
I'm
gonna
head
head
over
and
to
monitor
the
you
too
feed,
but
conscious
that
are
going
to
go
ahead
and
walk
you
through
some
of
the
asteroid
gear.
Don't
worry,
we're
we're
still
gonna
be
around.
A
A
E
A
D
A
A
The
reason
we
want
to
do
that
is
most
of
you
are
probably
familiar
with
telescopes
and
some
of
you
probably
already
own
telescopes
an
astronomic
here,
but
in
our
public
star
parties
we
always
find
folks
who
had
not
seen
a
telescope
or
don't
know
how
they
work.
So
this
is
a
quick
attempt
to
to
to
fill
that
gap
here
so
before
I
get
to
a
astronomy
gear.
I
want
to
kind
of
well
show
this
one
here
that
you
can
go
and
observe
the
sky.
You
can
go
out
in
our
sky.
A
You
can
look
up
in
your
eyes
and-
and
that's
that's
fine,
but
you
can't
really
see
a
lot
of
details
so
to
that
you
want
to
get
assisted
weaving
right.
So
we
have
these
different
different
instruments.
You
can
use
binoculars
and
different
kind
of
refract
different
kind
of
telescopes
I'll
get
to
this
in
in
a
little
bit
more
detail
in
next
few
slides,
but
before
I
get
to
the
details,
I
want
to
kind
of
give
you
an
analogy
on
I
know:
why
do
you
and
how
do
you?
What
a
Phyllis
cope
works?
A
And
you
know
why
do
we
need
one?
Let's
assume
that
you're
camping
out
and
you're
out
of
water
and
you're
really
thirsty
and
it's
drizzling
outside
you
can
go
outside.
You
can
look
up
open
your
mouth,
get
whatever
the
drizzle
you
get,
but
most
of
us
will
look
for
some
other
way
to
collect
food.
So
let's
say
you
have
a
big
bucket
with
opening
on
the
top
and
then
it's
four
on
the
bottom.
You
can
lift
it
up.
A
You
can
collect
all
the
water
that
you
get
the
drizzling
and
let
it
fall
down
to
to
the
spouts
and
you
can
control
them
on
a
water
you're
drinking
by
controlling
the
spout.
So
take
that
analogy,
and
instead
of
having
water
and
replace
that
with
a
light
light.
So
a
drizzling
light
collection
is
what
a
telescope
does.
It
collects
the
light
it
funnels
it
and
let
us
control
it
now.
A
It's
going
backwards,
so
the
the
light
so
I
want
to
try
this
in
the
light
right.
So
I
mentioned
that
instead
of
water,
you
take
light
so
the
way
that
it
works
is
like.
Let's
say
you
go
outside
that
dark
sky
site
and
you
look
up
and
your
eyes,
your
pupils
of
your
eyes
are
letting
in
all
the
drizzling
lights
from
this
faraway
objects,
they're
really
dim
light
and
you're
only
letting
in
about
maybe
five
millimeters
worth
of
light
in
each
of
your
eye.
That's
like
having
two
little
straws.
A
So
out
of
the
telescope's,
the
stripes
telescopes
that
I
mentioned
one
of
the
things
that's
really
common
is
binoculars.
Binoculars
is
a
great
object,
great
instrument
to
have
it's
they're,
cheap,
they're,
very
portable
and
they're,
very
versatile.
You
don't
have.
This
is
a
pair
that
I
have
here
and
even
amateurs
and
in
professional
astronomers.
They
all
have
you
know
they're
you.
We
all
have
binoculars.
It's
really
useful,
so
I'll
encourage
you
to
go.
You
know,
try
to
find
one
or
me
you
may
have
one
somewhere
in
your
cupboard.
A
You
can
use
this
for
astronomy
as
long
as
they're,
not
too
small,
and
this
kind
of
binoculars
are
very,
very
handy.
You
can
you
can
you
know
handhold
it
and
you
can
look
at
a
lot
of
objects
with
this.
One
and
I
happen
to
find
the
binoculars
are
generally
made
with
lenses
and
prisms.
So
in
the
front
there's
a
lens.
There
are
prisons
to
to
bend
the
light.
So
this
it's
like
a
handheld
binocular
that
I'm
showing
here
but.
C
A
Also
I
found
one
of
these
like
a
gigantic
binoculars.
You
can't
really
hold
this
with
your
hands,
but
you
can
have
a
mount,
that's
holding
the
binoculars,
and
this
is
kind
of
funny.
This
person
had
a
armchair
here
as
he's
doing
his
armchair,
observing
with
a
real
binoculars
here
and
the
next
one
I
want
to
show
is
refracting
telescopes.
The
refracting
telescopes
are
these
kind
of
long
thin
tubes
that
you
would
see
no
more
than
you
know
three
to
five
inches
in
diameter
and
total
fine
to
see
that
the
refracting
telescope
is.
A
If
you
look
in
the
front
of
the
telescope,
you
would
see
a
lens
on
here,
so
they
use
lenses
mainly
to
collect
and
bend
the
light
and
I
will
go
quickly
and
tell
you
how
this
works
here
and
here's
a
picture
that
I
found
from
a
NASA
website.
This
is
not
really
an
accurate
representation
hold
on
a
second
I'm,
getting
messages.
A
We
turn
off
my
messages.
This
is
not
really
an
accurate
representation
of
right,
but
it
gives
an
analogy
of
how
the
light
travels
through
a
telescope
refracting
telescopes
reflector
telescope.
Here
the
lights
coming
from
far
away
object
and
they
enter
the
telescope.
Now
this
is
the
the
big
barrel
of
you
know
like
collection
barrel
here,
and
they
go
through.
Light,
goes
through
a
lens
and
the
lens
bends
the
light
and
let
it
collect
to
a
point
and
what
we
call
a
focus,
so
the
focus
to
light
to
a
point.
A
So
that's
one
part
of
the
telescope.
The
other
part
of
the
telescope
is
to
take
that
collected
light
and
allow
it
to
be
magnified
by
this
as
the
secondary
lens
component.
It's
generally
not
one
lens,
it's
what
we
call
it
the
eyepiece.
It's
actually
a
stack
of
lenses
in
here
so
and
you
can
you
can
you
can
focus
this
light
you
by
moving
this
this
part
of
the
scope
just
like
how
if
you
want
to
this
is
really
magnificent.
A
E
A
Glass
back
and
forth,
like
this,
just
like
that,
you
can
move
this
little
piece
back
and
forth,
and
that
does
the
magnification.
Why
do
you
want
to
do
these
two
things?
The
first
one
you
wanted
to
collect.
A
lot
of
light
is
see
those
dim
objects
you
I
cannot
resolve
otherwise.
So
that's
why
you
want
to
collect
the
light
and
concentrate
it.
Why
do
you
want
to
magnify
it?
You
want
to
magnify
it
because
some
objects,
like
let's
say,
for
example,
you
can
look
at
the
moon
for
the
moon.
A
You
don't
really
need
to
collect
a
lot
of
light.
You
can
see
the
moon.
If
you
just
go
look
up,
however,
you
can't
really
see
the
details
of
the
moon
in
order
to
see
the
details
of
the
moon.
You
want
to
magnify
or
zoom
into
it
and
that's
what
this
magnification
part
of
the
telescope
this.
So
this
is
how
a
refractor
telescope
works
and
I'm
going
to
move
on
to
this
oops,
the
next
type
of
telescopes.
These
are
reflecting
telescopes.
They
generally
use
mirrors
to
collect
light.
A
This
other
shelf
on
the
left
hand,
side
is,
it's
probably,
you
know
more
than
five
feet
tall
and,
and
they
have
a
probably
even
larger
mirror.
So
you
can
see
if
you
go
to
observing
session.
If
you
see
just
this
big
telescope
big
wide
telescope,
so
you
can
assume
that
there's
a
reflecting
type.
So
the
way
these
things
work,
I
don't
want
to
go
to
too
much
details,
but
I'll
show
a
picture
here.
Just
like
the
other
picture.
A
A
A
They
also
tend
to
be
very
short
because
they
bend
light
inside
and
also
you
can
notice
that
in
the
very
front
they
also
have
a
lens.
So
they
have
a
lens
in
the
front.
They
happen
to
have
mirror
in
the
back
and
then
some
other
tickle
elements
in
between.
So
that's
how
these
telescopes
look
like
and
they're
called
catadioptric
or
compound
telescopes.
A
Lastly,
one
more
thing
I
want
to
show
is
this
collapsible
telescopes
in
certain
spare
part,
especially
if
you
go
to
dark
sky
star
parties,
you
will
see
some
larger
scopes,
people
bring
in
and
they
tend
to
be
like
this.
This
monstrous,
you
know
big
ones
with
pores
attached
to
it.
They're
they're,
really
reflector
telescopes.
That
I
showed
here.
It
is
a
tube
if
you
do.
A
If
you
look
at
this
tube
and
take
away
the
tube
and
that's
how
it
would
look
like
inside,
there
is
a
mirror
down
here
and-
and
there
is
a
secondary
part
this
this
this.
This
is
where
you
put
the
eye-
and
it's
all
help
with
this-
this
these
metals
process,
so
they
can
come
in
like
all
metal
or
wooden
metal
kind
of
combinations.
A
The
beauty
of
these
things
is,
you
can
collapse
these
things
and
you
can
carry
hid
very
heavy
telescopes
easily
and
assembly
on
flight
I
would
recommend
watching
somebody
an
astronomic
one
of
these
Tufts
of
together
in
in
a
star
parties
when
you,
when
you
guys
get
to
go
to
one
next
time
and
it's
a
nice
sight
to
see
okay,
eyepieces
I
kind
of
mentioned
about
eyepieces
eyepieces
is
the
this
last
thing,
and
if
you
take
this
refractor
there
is
a
an
optical
element.
At
the
end,
that's
called
the
eyepiece.
A
This
is
used
for
magnification,
so
here's
the
picture
that
I
found
online.
That
shows
like
a
collection
of
eyepieces,
and
these
are
kind
of
things
that
you
would
see
when
you
go
to
star
party,
you
will
hear
an
astronomical
saying:
oh
I'm,
going
to
switch
my
eyepieces
and
in
a
second
I'll
actually
demo
on
this
thing
to
you,
but
you
can
change
these
eyepieces
to
get
different
levels
of
magnification
that
you
need,
depending
on
what
you're
looking
at
and
the
condition
of
the
sky
and
whatnot.
A
So
here's
a
quick
demo
on
where
the
quick
illustration
of
where
the
eyepieces
go
so
this
refractor
telescopes
at
the
very
end.
This
is
where
you
put
your
eye
and
the
reflector
telescope
that
the
eyepiece
tend
to
be,
and
the
top
of
the
telescope
here,
okay
and
before
we
get
to
the
armchair
observing
I
want
to
quickly
show
see
the
video
work
so
alright
quickly
show
this
is
a
refractor.
This
is
what
I
was
talking
about
and
in
the
front
you
have
the
lens
here
you
can
well
it's
the
lenses
back
down
here.
A
This
is
just
a
shield,
so
there's
a
lens
down
here
and
the
very
back
here
you
can
see
the
eyepiece
here.
Actually
the
eyepiece
can
be
taken
out
and
I
can
put
a
different
eyepiece
by
the
way.
Here
are
two
eyepieces.
You
can
see
the
size,
differences
of
small
ones
or
big
ones.
They
are
doing
the
exact
same
function.
Actually
these
two
happen
to
be
doing
the
same
level
of
magnification,
but
they
decide
to
do
different,
different
things
and
provide
you
a
different
level
of
weaving.
A
So
that's
why
there
is
a
difference
in
in
our
size
and
weight.
What
else
I
want
to
show
this
one?
This
is
what
I
mentioned
about
the
IPS,
the
focusing.
So
you
can
see
there's
a
knob
here
and
when
you
rotate
this,
the
IPS
go
back
and
forth
and
that
allows
the
telescope's
to
come
to
focus.
So
the
light
coming
from
the
front
gets
get
into
a
focus
back
down
here
and
they
travel
backwards
more.
B
A
Once
you
move
this
back
and
forth,
you
go
to
the
right
focus
and
you
can
look
by
putting
your
eye
here,
and
this
part
here
is
the
mount
of
the
telescope.
There
are
different
types
of
mounts:
we're
not
going
to
go
to
that
here.
This
talk,
but
essentially
what
the
mount
does
is
actually
elevate
the
telescope
and
let
let
you
point
to
an
object
that
you
want
to
see
a
good
example
to
say
is
that
let's
say
you
won't
find
Venus
so
these
days
the
Venus
sets
at
sunset
time.
A
So
it's
west,
so
you
go
outside
and
you
will
rotate
your
body
to
find
where
West
is
and
look
up
and
down
and
to
see
the
bright
object.
Venus,
you
can
do
it
with
the
telescope.
You
can
rotate
back
and
forth
and
you
can
go
up
side
up
and
down
until
you
find
Venus
and
then
look
up
in
here
and
the
only
differences
you
might
see
in
the
field
is,
there
could
be
telescope
that
has
electronics
and
elect
and
motor
driven
tracking.
This
is
the
one
as
you
see
that
I
can
manipulate
with
my
hands.
A
The
reason
you
won't
have
some
fracking
and
motors
is
because
the
the
earth
is
rotating
and
if
you're
looking
an
object
through
a
telescope,
you
are
really
zooming
into
a
small
piece
of
the
sky
and
the
object
you're
looking
at
is
going
to
move
out
of
the
way
unless
you
keep
moving
and
if
you
have
cracking
it's
very
easy
to
track
something
and
not
having
to
move
the
telescope
around.
So
those
are
the
kind
of
little
basics
about
how
the
telescopes
operate
and
what
kind
of
telescopes
are
out
there.
A
If
you
have
there's
just
a
lot
of
information
on
this
field-
and
you
might
see
some
other
telescopes
and
in
the
next
segment
that
our
images
are
using,
if
you
have
questions
just
send
it
to
Q&A
and
we
can
try
to
answer
them.
Thank
you
very
much.
So
the
next
section
is
Bruce
and
Glenn.
Take
it
away,
please:
okay,.
G
Yeah,
if
you
could
advance
this
I'm
gonna
need
you
to
do
the
first
couple
slides
and
then
we'll
see
I'll
do
that
alright
so
because
we
can't
all
go
and
look
in
telescopes
tonight
and
and
potentially
you
know,
brush
our
eyelids
across
eyepieces
and
share
something
we
don't
want
to
share
we're
gonna.
Do
some
astrophotography
and
we'll
give
you
some
live
views
of
the
night
sky
here
in
a
minute
and
just
talk
about
there's
a
couple
of
us
that
are
going
to
be
doing
that-
and
this
is
my
telescope
at
home.
G
Here
it's
a
12
inch
reflector,
it's
it's!
A
Ricci
criterion
is
the
type
it's
the
same
optical
design
as
the
Hubble
Space
Telescope
and
most
modern
observatories
use
that
type
of
an
optical
design.
It's
a
semi-permanent
setup,
so
I,
don't
I,
don't
move
this
anywhere
and
I
can
sit
in
my
office
inside
the
house
or
you
know,
get
it
going
in
and
go
to.
G
D
G
Okay,
we're
still
hoping
there
we
go
okay,
so
Bruce
is
on
the
call
as
well.
He
can
jump
in
any
time
here
and
this
is
Bruce's
rig,
and
so
this
is
a
refractor
type
of
telescope
and
it's
a
hundred
and
fifty
two
millimeter
objective,
and
this
is
a
portable
setup.
So
he
can
take
this
to
dark
sites
and
there
in
the
that
tub
at
the
bottom
he's
got
a
computer
and
a
Wi-Fi
router,
and
then
he
can
control
that
from
another
laptop
or
an
iPad.
Or
what
have
you
and
then
on
the
right
again.
G
We've
got
a
similar
set
up.
His
imaging
train
or
instrument
package
happens
to
be
very
similar
to
mine,
so
there's
a
couple
cameras
and
a
filter
wheel
and
a
focal
reducer
and
a
focuser
and
a
rotator
and
all
kinds
of
stuff
there.
So
that
just
gives
you
an
idea
of
the
equipment
that
we're
going
to
be
using
here
in
just
a
second
and
let
me
grab
hold
of
the
presentation.
I
think
if
you
go
one
more
slide,
just
to
remind
me
that
that,
where
we're
going
from
here.
G
G
All
right
so
we're
back
out
at
our
see,
do
here
in
Stellarium
and
we're
looking
to
the
north.
If
you've
been
there
physically
you're,
probably
used
to
looking
to
the
to
the
south
here
that
the
telescope's
usually
set
up
along
this
this
rail
and
then
they
can
look
in
different
directions.
But
you're
probably
used
to
looking
out
across
this
field.
But
I
want
to
bring
your
attention
back
to
the
to
the
north.
Here
and.
G
And
the
North
Star
Polaris,
because
conch
talked
a
little
bit
about
tracking.
You
know
if
I
change
the
time
of
day,
you
see
how
the
constellations
are
wheeling
around
this
one
part
of
the
sky
here.
So
this
is
the
Polaris,
the
North
Star
and
in
the
Northern
Hemisphere
everything
kind
of
wheels
around
that.
So
that's
a
good
point
to
be
oriented
towards
so
we'll
we'll
use
that
and
let's
go
ahead
and
and
take
a
look
at
some
images
in
the
in
the
night
sky
here.
G
So
the
first
thing
that
we're
going
to
look
at
is
m3.
So
let
me
talk
about
that.
So
m3
is
a
globular
cluster
and
it's
sort
of
like
a
mini
ancient
galaxy
in
a
way
they
happen
to
be
associated
with
galaxies
and
they
sort
of
orbit
up
and
down
through
the
galaxies.
But
you
can
see
here
that
that
this
one
particular
has
as
many
as
five
hundred
thousand
stars
in
it.
And
what
we're
looking
at
here
is
a
star
chart.
Rashi
talked
about
before.
G
If
you've
got
a
telescope
with
the
tell
rad
viewfinder
on
it,
then
you
can
see
the
same
object
in
your
in
your
view,
finder
this
reticle
and
then
you
can
get
oriented
in
the
sky
with
that
and
that'll
help.
You
find
this
object,
so
this
object
is
in
the
constellation
of
the
hunting
dogs.
I
won't
try
to
pronounce
the
Latin
anybody
can
jump
in
here.
If
you
want
to
so.
G
G
You
Bruce
all
right,
so
we
can
go
ahead
and
show
so
this
is
his
image
of
m3
mapped
on
to
the
to
the
sky.
If
we
look
at
that
in
a
slide
you
can
see
here
this
is
he
homemade,
6-inch
Newtonian
that
that
he
built
and
that's
what
he
imaged
this
with
and
again
we
talked
about
this:
is
a
globular
cluster
in
the
hunting
dogs
constellation
it's
about
35,000,
light
years
away.
So
with
that,
let
me
drag
something
over
and
we'll
actually
get
kind
of
a
live.
G
Look
here,
so
we're
as
astrophotographers
we're
used
to
doing
sort
of
long
exposures
of
the
night
sky.
That's
another
way
to
get
more
light
in
your
in
your
funnel
in
your
in
your
camera
sensor
is
to
is
to
use
a
long
exposure
and
we
also
tend
to
use
monochrome
cameras.
So
what
you're,
looking
at
here
and
I
promise
I'll
keep
this
part
brief,
but
you
know
I'm
taking
30-second
exposures
through
red,
green
and
blue
filters,
and
so
you
know
one
of
these
monochrome
images
is
going
to
look
something
like
that.
G
G
And
get
reoriented
on
on
Polaris
and
I've
labeled
here
the
m3
you
saw
go
by
so
we'll
know,
as
we
add
more
objects
as
we
look
at
more
objects,
they'll
be
labeled
and
we
can
see
where
they
are
in
the
sky.
So
here
we
are
back
at
our
CDO
looking
north
again
and
let's
go
ahead
and
go
to
our
next
object,
which
will
be
M
44,
which
is
in
what's
called
an
open
cluster.
G
G
I
Wanted
to
say
yeah,
so
we
don't
need
we
don't
not
always
needed
to
go
to
very
dark
places.
In
order
to
take
pictures.
This
one
was
taken
from
my
home
balcony
mountain
you
and
I
exposed
for
a
total
of
one
hour
and
captured,
probably
a
good
amount
of
the
stars
of
this
cluster.
As
you
can
see,
some
of
them
are
this.
In
general,
this
cluster
is
made
up
of
young
stars
about
600
million
years,
which
is
nothing
in
in
astronomical
terms.
I
Some
of
them
are
still
very
much
blue
because
they
are
young
stars,
big
stars
and
they
burn
very
hot,
and
so
their
color
is
is
shifted
towards
blue.
Some
of
them
have
already
transition
to
become
red
giants
which,
despite
the
name,
appear
more
yellowish
and
orange
to
our
to
our
eyes.
This
is
a
cluster
that
was
known
as
since
ancient
times.
People
were
not
know
what
it
was.
G
H
This
is
the
Beehive
cluster
which,
unfortunately
just
dipped
behind
a
tree,
but
I've
been
live
stacking
for
the
past
hour,
so
I
have
over
100
frames,
30
seconds
each
going
through
a
green
filter.
My
software
does
not
have
the
capability.
That
glance
does
to
do
stacking,
and
you
know
combination
of
color
filters
on
this
on
the
fly.
But
this
is
nice
monochrome
image
of
the
Beehive
across
there.
E
G
G
E
E
J
The
city,
because
that
that
image
has
been
from
done
from
me
from
my
back
living
in
a
situation
even
worse,
that
the
Francesca
was
mentioning
before.
If
you
remember
the
Rashi
slice
picture
of
all
the
sky,
I
am
on
the
leftmost,
so
bright,
most
sky
possible,
and
that
was
to
night
exposure
on
two
different
field.
I,
don't
want
to
entering
in
particular
here,
but
was
basically
red
filter,
the
hydrogen
and
green
blue
field,
trended
oxygen
and
a
combined
add
these.
J
Combining
images
has
been
made
with
64
total
images
of
five
minutes
each
with
for
a
total
of
five,
my
health
power
of
exposure,
so
not
not
particularly
long
exposure,
and
that
is
a
globular
cluster
as
Charlotte's
planetary
nebula,
as
Russia
was
mentioning
before.
That
is
two
thousand
light
years.
Far
from
us
and.
J
Nothing
that
is,
is
a
quite
quite
complex
structure
that
is
the
various
it's
a
level
of
value
bubbles,
one
inside
the
other
that
form
this
kind
of
patterns
that
had
been
called
the
Hall
nebula,
because
the
first
observer
that
they
discovered
that
in
the
1781
at
time
of
Messier,
was
a
colleague
of
Messier,
discover
this
and
and
after
that
they
look
at
these
two
black
spots
and
was
looking
like
the
two
big
hi
overhaul,
and
so
they
call
it.
Of
course,
all
network
okay,.
G
So
this
is
something
that
you
can
see
with
binoculars
as
a
dim
patch
of
light.
If
you've
got
a
little
bigger
telescope,
then
you
can
see
some
of
the
nebulosity
around
the
the
core
of
the
galaxy
and
if
you've
got
an
eight-inch
scope,
you
can
see
you
can
really
see
the
the
galaxy
here
like
we'll
show
you
in
a
minute,
although
not
maybe
not
with
all
the
colors.
So
let's
go
ahead
and
take
a
look
at
that.
M101
is
in
the
same
constellation
as
m97,
it's
in
Ursa
Major
or
the
Great
Bear.
G
D
We're
just
gonna
say
that
you
know
we
did
talk
about
galaxies
a
little
earlier
and
they
do
come
in
different
shapes
and
sizes
right.
So
what
we
are
seeing
here
is
a
spiral
galaxy,
but
they
do
come
in
elliptical,
irregular
and
Bart
elliptical,
sorry
spiral,
barred
spiral,
elliptical
and
irregular
forms
or
patterns.
You
can
go
online
and
take
a
look
there's
just
a
massive,
my
read
of
types
of
galaxies
and,
of
course,
different
sizes
as
well.
It's
fascinating!
D
H
As
at
when
we
live
stack,
it
it
keeps
adding
cream
on
top
of
frame,
and
the
signal-to-noise
ratio
gets
better
and
better,
as
time
goes
on.
So
this
is
11
frames
right
now
and
it
gets
less
noisy
generally,
but
it
also
sometimes
acts
up
and
changes
its.
What
we
call
a
screen
stretch,
which
is
what
you
guys,
are
seeing
right
here
so
just.
H
A
G
Did
a
little
bit
I
didn't
use
the
word
integration,
but
I
talked
about
long.
Exposures
is
what
we
normally
do
to
collect
more
light
on
our
camera
sensors
right.
So
we
have
the
the
advantage
first
of
the
telescope
itself.
As
you
talked
about
concentrating
the
light,
but
then
we
can
also
see
more
than
the
eye
could
see
through
telescope
by
taking
long
exposures
and-
and
that's
referred
to
integration
or
the
total
time
that
you
take
exposures
and
then
add
them
all
together
can
be
considered
integration,
yeah.
H
I
have
another
from
a
couple
nights
ago:
I
did
about
50
or
60
frames,
each
red,
green
and
blue
and
I'm
just
started
really
playing
around
with
it.
As
far
as
the
processing
goes,
when
you're
doing
astrophotography,
you
spend
easily
as
much
time
in
the
processing
after
you've
taken
all
your
images
as
you
do
actually
collecting
images.
H
G
J
G
G
And
I
want
to
show
you
one
more
object,
so
you
can
see
these
labels
in
red
here.
This
is
where
we've
been
in
the
night
sky
we've
been
up
to
M
3
and
over
to
M
44
and
M
97
and
M
101
I
want
to
take
you
one
place.
That's
really
I'm
cheating
a
little
bit
because
it's
not
really
high
enough
in
the
sky
to
to
image
anymore,
but
I
really
wanted
to
show
you
a
bright
nebula,
an
emission
nebula
and
because
that's
my
particular
joy
of
imaging
those
types
of
objects.
G
G
You
probably
can't
read
the
months
here,
but
these
are
months
across
the
bottom,
so
this
is
May
right
here
in
April,
so
we're
really
beyond
what
a
good
time
to
image
this
nebula
and
these
the
reason
they're
gaps
here
is
that's
when
the
when
the
moon's
up,
so
you
need
new
moon
or
you
know
the
moon
needs
to
be
farther
away
from
the
from
the
nebula
in
order
to
do
a
good
job
of
imaging
it.
So
this
is
in
the
constellation
of
Monoceros,
and
this
is
a
pretty
wide
field
object.
G
You
need
a
low,
magnification
or
wide
field
eyepiece
to
take
it.
Look
at
that.
The
other
thing
this
slide
talks
about
is
you
know.
This
is
an
example
of
something
that
that
you're
only
going
to
see
in
this
rich
color
in
an
astro
photo.
Your
I
just
can't
collect
enough
light
fast
enough
to
see
these
some
of
these
colors.
So
let's
go
ahead
and
move
on
so
we'll
go
to
first
to
the
constellation
of
Monoceros
and
then
we'll
get
oriented
on
the
rosette
nebula
also
called
NGC
2237.
G
And
this
image
was
taken
by
club
member
John
Wayne
right.
We
don't
have
him
on
the
phone
tonight,
but
here's
a
closer
view
of
that
and
again
so
this
this
is
an
emission
nebula
in
mono,
serous
or
the
unicorn,
and
here
at
the
bottom
left
is
a
picture
of
the
rig
that
that
John
used
to
take
this
photo
and
I
bet
either
Francesco
or
Paolo
probably
have
some
interesting
comments
about
emission
nebula,
maybe
or
I
didn't
warn
them
about
this,
but.
J
Our
neon
tube,
when
is
energized
by
this
energy,
start
to
admit
light,
and
so
what
what
we
are
seeing
is
that
light
that
is
emitted
by
the
by
the
by
the
gas
and
then
interesting
things
are
the
the
black
part
or
the
the
dark
part
that
are
normally
more
dense,
cluster
of
gas
and
particles,
and
normally
those
are
colored
star
nursery.
Because
in
these
places
in
this
say
cluster
of
matter,
there
will
be
new
star
born
because
gravity
will
start
to,
let's
say
call
together
them
the
matter
and
that
will
form
in
the
future.
J
A
J
J
Gas
different
particles
admit
different
color
again
continue
to
the
the
same
analogy
of
the
neon
tube
think
about
a
neon
signature.
They
have
different
color
the
cube
because
there
are
different
gases
inside
particularly
the
red
one
is
the
hydrogen
or
the
soul.
For
that
both
are
admitting
in
the
red
band.
J
Instead,
for
instance,
hydrogen
is
green,
blue,
sorry,
oxygen
is
green,
blue,
and
so
you
can
understand
what
kind
of
gas
is
there
studying
the
coral,
and
that
is
one
branch
of
astrophotography
that
called
the
spectroscopy
and
that
study
of
not
only
the
nebula
but
also
the
the
star
that
studied
the
composition
of
the
star
and
the
nebula
is
studying
the
admission
of
the
line.
Okay
here,
I
see
another
picture
of
all
rosette
Mabel
are
very
dramatic
and
very
beautiful.
J
For
my
point
of
view,
one
field,
one
note
of
all
the
images,
all
the
images
that
you
can
see
them
all
the
best
images
that
you
can
see
about.
Highball
telescope,
these
and
the
other
are
all
full-color,
because
our
a
composition
of
a
very
narrow
color
band,
that
are,
let's
say,
creating
a
pleasing,
color
and
please
a
composition
to
our
highs
of
the
those
few
little
band
of
color
put
together.
J
J
So,
for
the
point
of
view
of
the
of
beauty
for
the
for
of
the
picture,
are
there
interesting
for
the
point
of
view
of
science
and
study?
These
are
all
as
a
not
completely
important,
because
there
are
what
they
call
full
scholar,
so
all
abstract
each
of
each
one
of
us
can
tweak
the
color
and
elaborate
the
color
in
a
different
way.
There
is
no
real
core
of
the
rosette
level,
because
the
real
color
red
nebula
is
basically
thread,
but.
G
I
would
add
that
and
then
we'll
move
move
on
here,
but
I
would
add
that
you
know
using
these
filters
to
bring
out
the
different
spectrums
of
different
gases
right.
So
this
blue
is
going
to
represent
the
the
doubly
ionized
oxygen
and
the
yellow
is
probably
singly,
ionized
sulfur
and
then
in
in
this
image,
and
the
red
in
both
images
is
probably
hydrogen
right.
So
it
does
have
a
scientific
value
in
terms
of
understanding
the
different,
the
different
structures.
Yes,.
G
J
H
This
is
also
the
rosette
nebula,
which
is
also
my
favorite
targets
astrophotography,
and
this
is,
as
Glen
just
said,
it's
a
starless
version
of
it.
There
are
ways
that
you
can
use
software
to
remove.
The
stars
from
images
in
stars
are
great,
but
sometimes
removing
the
stars
from
an
image
reveals
some
more
detail
and
the
clouds
of
nebulosity.
H
False
color,
but
the
Hubble
palette
is,
is
what
it's
called
actually
in
general
and
I
believe
that
they
started
doing
it
on
the
Hubble
Space
Telescope,
because
they
they
were
able
to
bring
out
detail
using
the
Hubble
palette
and
the
substitution
and
false
color
that
they
used
better
than
using.
You
know
the
normal
red,
green
and
blue
by
substituting
that
alright.
G
Alright,
so
zoom
back
out
from
the
rosette,
nebula
and
we'll
see
now
see
it's
underneath
the
the
ground.
That's
why
you
don't
see
any
constellations
there
so
at
this
time
of
year,
that
object
is
too
low
to
image.
But
again
you
can
see
where
we've
been
tonight
in
the
in
the
night
sky.
From
the
from
the
viewpoint
of
our
CDO
again,
we
started
at
at
m-44.
G
E
A
D
Right,
hopefully,
everyone
can
see
my
screen
yeah
we're
back
at
the
night
sky,
we're
at
about
10:30,
so
we're
actually
a
little
behind
in
time.
So
it's
about
10:53
p.m.
Pacific,
but
you
know
we're
not
that
off
when
you,
when
you
get
out
there
and
take
a
look
at
the
night
sky,
we'll
do
a
very
quick
recap
of
some
of
the
things
that
you
know.
We
would
definitely
want
you
to
do
when
you
get
back
out
there.
D
You
find
the
pan
and
the
pan
handle,
which
is
the
asterism
in
Ursa
Major
and
then
using
the
point
two
stars,
Moroccan
Dube.
You
can
make
your
way
down
to
Polaris
Northstar,
which
is
a
tail
star
of
Ursa
Minor.
If
you
go
in
the
opposite
direction,
you
can
get
to
lea
minor
and
Lea
from
the
Panhandle.
You
can
auch
och,
Taurus
and
booties
and
then
spike
to
Spica
in
Virgo,
come
back
to
our
Taurus
and
then
trace
out
this
kite
pattern
and
you'll
find
that
up.
D
Taurus
is
that
streamer
or
tail
star
of
this
kite
pattern,
which
you
know
the
constellation
we
call
booties
and
then
going
from
Arcturus
down
towards
Vega
the
hop
star.
You
will
actually
cut
right
through
Corona
borealis,
which
is
a
bunch
of
stars
that
look
like
a
smiley
face,
which
is
the
northern
crown
and
then
you'll
go
to
the
keystone
of
Hercules,
and
why
does
it
call
the
Keystone
primarily
because,
as
you
all
know,
the
keystone
of
an
archway
is
that
main
stone
up
in
the
center?
D
If
you
take
that
out,
the
the
entire
archway
fall,
so
please
be
careful,
do
not
remove
the
keystone
of
Hercules,
it
actually
holds
up
the
entire
night
sky,
otherwise
the
night
sky
will
fall
on
us.
No
just
kidding,
don't
worry
about
that
and
then
you
get
through
a
Gliese
and
then
you
will
get
down
to
Vega
and
now,
by
the
time
you
get
out
there.
You're
probably
gonna,
see
another
star
coming
up
above
the
horizon,
and
that
is
Deneb
in
Cygnus
Cygnus,
the
Swan,
and
what.
B
D
Right,
thank
you
very
much
so
below
Vega.
We
are
starting
to
see
the
summer
triangle
in
Vegas
part
of
it
a
Cygnus
coming
up
at
Cygnus,
the
Swan
we've
got
to
nab
and
we'll
talk
about
the
summer
triangle.
In
a
few
weeks.
Also
from
Ursa
Major,
you
can
make
your
way
to
Gemini
the
Gemini
twins.
You
can
also
then,
above
the
Gemini
twins,
you
will
find
cancer,
so
you
know
get
out
there
use
a
planetary
app
on
your
phone,
go
to
sky
maps,
comm,
download
the
sky
maps
print
it
out,
get
outside
and
learn.
A
F
So
great
presentation,
by
the
way,
all
of
you,
so
we
had
a
few
interesting
questions,
come
in
the
chat
Channel,
but
most
of
them
have
been
answered
already.
So
do
we
want
to
go
over
them,
or
do
we
actually
want
to
give
our
audience
a
chance
to
ask
some
last-minute
questions
they
might
have
apart
from
the
ones
that
have
not
already
been
answered
in
the
chat
charm?
I.
A
F
I
B
I
I
They
follow
Planck's
law,
they
emit
a
spectrum,
a
continuous
spectrum
of
radiation
following
a
very
precise
law,
so
even
a
star
that
has
the
maximum
emission
in
in
a
wavelength
corresponding
to
the
green
color,
has
so
much
other
emission
nearby
in
the
in
the
orange
and
blue
in
red
portions
of
the
spectrum
that
our
eyes
integrate
that
as
a
yellow,
color.
That's
what
we
see
are
that's
why
we're
seeing
yellow
stars?
It
is
different
for
nebulae.
So
a
nebula
like
the
owl
nebula
that
we
saw
the
gases
there
are
so
rarefied.
I
The
density
is
so
low
that,
instead
of
emitting
a
continuous
spectrum,
you
actually
get
one
particular
wavelength,
a
line
spectrum.
We
call
it
and
it
may
happen
that
the
particular
chemical
species
that
are
being
excited
by
the
radiation
like
oxygen,
for
instance,
I,
have
an
emission
line
in
the
green
portion
of
the
spectrum,
and
so
you
can
see
nebula
having
green
colors,
but
not
stars
because
of
the
way
stars
of
the
laws.
That
start
light
emission
follows.
C
I
M13
the
big
globular
cluster
in
Hercules,
and
if
you
want
to
wait
a
little
bit
later,
the
planet
Jupiter,
it's
always
a
show
and
then
the
Milky
Way,
the
Milky
Way,
is
just
starting
to
rise
in
the
east
around
maybe
10:30
p.m.
right.
Now,
next
month
it's
gonna
rise
earlier
and
if
you
have
a
chance
of
going
to
go
to
a
nice
dark
site,
let's
do
that.
The
Milky
Way
is
amazing
from
from
a
dark
side.
J
E
D
I
think
I
think
there
in
in
June
itself,
we've
got
a
couple
of
eclipses
coming
our
way
too
right.
We've
got
a
penumbral
lunar
eclipse
happening
in
early
June
and
I.
Think
there
is
an
annular
solar
eclipse.
That's
also
happening
in
the
later
part
of
June,
something
to
be
mindful
of
now.
That
might
not
be
visible
to
us
here
from
the
US
but
and
some
of
the
other
parts
of
the
world
that
might
be
visible.
A
A
E
F
A
A
Again,
I
want
to
remind
those
folks
out
there
that
the
San
Jose
astronomy
club
has
imaging
or
photography
workshops
that
Glenn
and
roosters
and
a
lot
of
how
to
knowledge
sharing,
and
we
also
have
a
Google
Group
for
that.
So
if
you're
interested
in
this
I
would
encourage
you
to
join
the
club
and
and
get
engaged
with
these
folks
and
they
can
guide
you.
A
A
So
we
are
going
to
move
a
number
of
our
events
online,
so
this
is
the
empty
I'm
Chester
party.
This
is
the
first
installment.
Hopefully
we
can
continue
this
event
and
we
have
guest
speaker
events
and
so
a
solar
observing
by
the
way
is
tomorrow
and
the
guest
speakers
and
the
astronomy,
101
introduction
to
astronomy
and
the
imaging
meetings.
They
are
all
online
go
to
SJ
a
dotnet
and
you
will
get
the
the
schedule
and
on
all
those
events,
and
with
this
I
would
like
to
wrap
up
today's
session.
A
D
A
A
big
thanks
for
Rashi
who
was
really
leading
getting
this
slide
set
and
the
look
and
feel
of
the
site
says
done
and
then
also
for
Glenn
and
his
team
to
for
for
getting
these
images
and
all
the
sky
Safari
hacks
and
those
guys.
So
it's
tellurium
hacks
the
right.
There
are
two
programs
that
we
used
so
I
used
the
wrong
names,
tellurium
the
free
one
to
to
put
all
these
images.
It's
it's
great
guys
and
again
big
thanks
for
audience.
I
hope
to
see
you
guys
in
the
next
event.
D
Yeah
and
one
other
one
other
thing
just
to
add:
we're
gonna
leave
the
screen
on
for
a
few
more
seconds
or
a
couple
of
minutes.
Actually.
So
if
there
are
any
last-minute
questions
that
you
might
have
or
anything
that
you
want
to
know,
the
chat
will
be
on
because,
as
soon
as
we
close
out
the
feed,
then
the
chat
will
disappear
so
we'll
just
keep
keep
on
going
for
a
little
bit
longer.
Thank
you,
everybody,
and
thanks
to
all
the
SGA
members.