►
Description
Presentation on "Instrument Packages" for the different types of Astro Imaging" and general image sharing and discussion.
A
Well,
hello:
everybody
welcome
to
the
november
2020
version
of
the
san
jose
astronomical
association.
Imaging
special
interest
group
meeting
and
tonight
is
posted
as
a
general
discussion,
but
we
have
some
stuff,
like
glenn,
put
together
on
spectroscopy
and
on
well
actually
on
more
on
equipment,
variations
and
anything
that
anybody
wants
to
talk
about
we're
we're
open
to
it.
I
think
we'll
have
time.
So
why
don't
we
get
started
glenn
you
want
to
take
it
from
the
top
sure.
B
A
B
B
So
the
point
is
that
the
different
types
of
astrophotography
have
different
requirements.
You
know,
and
so
I'm
talking
about
deep
space
and
you
could
divide
that
into
kind
of
wide
wider
field
and
and
deeper
targets.
Smaller
fovs,
then
there's
planetary,
which
there's
some
common
requirements
across
the
whole
thing.
But
then
you
could
divide
it
down
into
the
planets
themselves
versus
solar
and
then
another
one
that
that
I've
gotten
motivated
about
again
is
the
spectroscopy.
B
So
I
don't
know
if
you
guys
saw
the
last
speaker
after
the
board
meeting
was
tom
field,
who
writes
the
r-spec
software
that
a
lot
of
people
use
for
spectroscopy.
So
there
was
a
good
talk
on
that
and
that
got
me
geared
up
to
get
back
into
that
part
of
the
hobby.
And
I
had
a
piece
of
gear
that
we'll
we'll
talk
about
here
called
the
grism
that
I
had
bought
back
in
2018
that
I
hadn't
actually
deployed
or
tried.
Until
now
so
yeah
reported.
B
So
diving
into
deep
space.
So
this
is
my
workhorse
rig
here
all
these
by
the
way
plug
into
moonlight
two
and
a
half
inch
focusers,
either
on
my
william
optics,
80
millimeter
triplet,
what
a
megres
to
whatever
refractor,
and
also
on
my
12
inch
truss
rc.
So
I've
kind
of
standardized
on
the
on
the
focusers,
and
I
have
a
actually
three
of
them
now
for
some
reason,
so
everything
threads
into
one
or
the
other
of
the
the
focusers.
B
So
just
in
review,
you
know
what
you're
usually
trying
to
do
for
for
deep
space.
Is
you
want
faster
optics,
you're
you're,
trying
to
have
a
smaller
focal
ratio
than
maybe
your
native
scope
has
and
that's
to
limit
exposure
time?
It
gives
you
a
little
wider
field
and
maybe
you're
trying
to
utilize
as
much
of
the
flat
image
circle
that
your
telescope
can
produce
as
possible
in
terms
of
getting
all
of
that
flat
area
on
your
camera
sensor.
B
B
So
this,
let
me
put
my
mouse
over
here.
This
focal
reducer
goes
down
inside
the
focuser
up
to
these
threads
here
and
then
we
have
the
on
ag
for
guiding.
So
the
infrared
light
goes
straight
through
to
the
guide,
camera
and
the
visible
light,
bounces
off
a
cold
mirror
and
goes
through
the
filter
wheel
and
to
the
asi
1600.
B
I
have
since
moved
the
electronics
for
the
rotator
off
of
this
onto
the
onto
the
rc
ota
itself,
because
when
I'm
spinning
things
on
and
off
of
here,
this
keeps
running
into
stuff,
so
that
that's
one
change
that's
been
made
since
then.
I
think
everything
else
is
pretty
current
yeah.
So
again,
oh
and
also
you
know,
I've
talked
before
about
my
somewhat
3d
printed
rotator.
B
The
moonlight
focusers
have
the
ability
to
add
a
rotator
to
them
and
I,
rather
than
buy
the
one
that
they
make.
I
made
my
own
using
mostly
designed
from
somebody
on
the
on
the
net
and
it's
our
arduino
and
some
3d
printed
parts
and
stuff.
So
that's
nice
and
it's
especially
nice
with
the
anytime
you're
doing
off-axis
or
on-axis
guiding
versus
a
separate
guide
scope.
B
You
know
every
time
you
rotate
the
camera
you'd
have
to
recalibrate
phd2,
but
if
you
have
a
rotator
with
an
ascom
driver,
then
phd2
can
watch
that
and
it
can
do
the
math,
so
you
don't
have
to
recalibrate.
So
that's
that
was
one
reason
for
me:
adding
a
rotator
versus
just
doing
the
manual
rotation
with
the
manual
rotator
driver
in
in
sgp
to
prompt
you,
you
know
three
more
degrees,
three
more
degrees
or
whatever.
B
B
Your
your
your
you
know,
ota
to
sensor
distance
is,
is
keeps
shrinking
right,
so
that
involved
even
even
taking
all
the
extension
tubes
off
the
scope
that
would
go
between
the
scope
and
the
focus
there.
I
I
still
had
to
mechanically
shave
threads
off
the
focal
reducer
to
get
the
extra
10
millimeters
I
needed
to
to
come
to
focus.
A
B
Yeah,
what's
the
name
of
those
silent
fans,
bruce
the
knock
nocturna
noctua?
No?
Okay!
Thank
you
so
yeah.
My
camera
is
outdoors
24
by
7
365
and
I've
also
been
lazy
about
leaving
the
power
on
which
I
think
sometimes
it
seems
like
the
fan
runs.
Sometimes
it
does,
and
sometimes
it
doesn't,
I'm
not
sure
what
that
is.
It's
not
cooling,
but
the
fan
still
runs
but
anyway
after
however
many
years,
I've
had
this
camera.
Now
two
three
years
the
fan
died,
and
I
think
high
just
went
through
that
as
well.
B
So
you
know
looking
to
cloudy
nights
for
for
help
on
that,
since
spare
parts
are
not
available
for
for
zwo
in
any
kind
of
convenient
way.
The
the
thinking
there
was,
rather
than
replace
it
with
as
close
to
the
exact
same
fan
as
possible,
that
people
were
putting
this
these
other
fans
in
there
and
that
had
to
do
with
people
that
were
suffering
from
vibration.
B
Vibration
problems
more
than
anything
else,
but
I
just
decided
to
to
go
that
route
and
the
way
that
particular
fan
mounts
is
rather
than
having
screws,
and
this
helps
with
the
vibration
control.
It
has.
These
silicone
plugs
that
you
pull
through
this,
so
you
you
pull
them
through
the
fan
and
then
you
pull
the
fan
against
the
the
metal
by
pulling
these
four
things
through
the
screw
holes.
E
B
Could
cut
them
down,
but
you
know
whatever
they're,
not
hurting
anything
they're,
soft,
okay,
okay,
all
right!
So
then
here's
what
it
looks
like
on
the
megrez
ii,
william
optics
scope.
So
it's
the
same
instrument
package
and
you
get
kind
of
another
view
of
the
rotator
here:
here's
the
solenoid
for
it
and
the
belt.
B
B
B
B
B
B
For
both
the
mars
and
this
part
of
the
same
rig
is
used
for
solar
or
not
for
solar
first
spectroscopy
as
well,
and
I
ended
up
deleting
the
flip
mirror
for
that.
But
but
that's
so
that's
one
way
and
then
the
other
way
which
I've
ended
up
using
instead
of
the
flip
mirrors.
I
just
use
the
the
other
scope,
so
I
put
a
camera
on
the.
B
B
B
Yeah,
it
adds
quite
a
bit,
so
I
ended
up
deleting
that
as
well
and
now
I
just
know
that
you
know
if
the
refractor,
if
it's,
if
the
object
is
centered
on
the
refractor
in
the
center
of
the
frame,
then
it's
actually
going
to
be
you
know
down
and
over
here
or
something
I
can't
look
at
my
hands
and
get
them
right.
But
anyway,
I
know
where
it's
going
to
show
up
in
the
where
I
need
to
move
the
the
object
to
be
off-center
so
that
it
will
be
centered
in
the
other
scope.
B
So
anyway,
that's
what
I'm
doing
there
so
back
to
the
requirements
for
for
planetary.
So
there's
a
rule
of
thumb
that
says
that,
depending
on
the
scene,
you
want
to
have
some
multiplier
of
your
pixel
size
in
microns,
which
is
a
kind
of
a
you
know,
unitless
number,
but
that's
the
focal
ratio
that
you
want.
So
you
know
if
your
pixel
size
was
10
microns,
then
you
know
you'd
you'd
want
30
to
50
as
a
as
a
focal
ratio.
B
B
B
and
those
are
like
f12
or
f13
native.
So
those
are
good
for
planetary,
but
they
have
a
focuser.
That's
like
on
an
sct,
it's
kind
of
hard
to
to
automate,
but
I
did
do
that
as
well.
With
the
you
know,
3d
printed
parts
and
the
arduino
and
all
that,
but
when
it
was
all
said
and
done,
I
didn't
have
enough
really
resolution.
So
I
went
back
to
the
to
the
rc,
even
though
rc's
are
not
supposed
to
be
super
great
for
planetary
because
of
their
large
center
obstruction.
B
It
reduces
the
the
contrast,
but
anyway,
so
I'm
on
the
12-inch
rc.
I've
got
the
atmospheric
dispersion
corrector
here,
which
I
have
not
yet
learned
to
use,
but
it's
it's
there
that
replaced
the
the
flip
mirror
and
then
there's
an
adjustable
barlow.
So
this
is
the
astrophysics
they
have
an
acronym
for
it.
I
think
it's
like
bar
dv
or
something
the
advanced
barlow
and
it
looks
exactly
like
a
ccd
t67
focal
reducer,
but
it's
a
barlow,
and
so
you
control
the
amount
of
magnification.
B
B
B
So
I
wanted
to
add
that
to
my
filter
wheel,
but
my
filter
wheel
was
was
31
millimeters
and
this
is
an
inch
and
a
quarter,
so
I
did
3d
print
a
little
adapter
that
has
the
the
eyepiece
threads
on
it
for
the
for
the
inch
and
a
quarter
so
that
went
in
there
took
out
my.
I
normally
have
a
light
pollution
filter.
As
luminance
there,
okay,
well,
let's
see
we
talked
about
the
barlow
with
spacers
filter,
wheel
right
and
then
you
want
a
camera.
B
B
B
Let's
do
some
solar.
This
is
my
latest
solar
image.
I
managed
to
catch
this
sunspot
just
before
it
in
a
in
a
moment
of
clear
sky
just
before
it
went
around
the
edge.
I
you
know
I
was
saw
it
on
space
weather
and
you
know
we're
in
a
a
low,
a
low
spot
of
the
11
year
cycle.
So
I
really
didn't
want
to
miss
this,
but
it
was
cloudy
most
days,
but
finally,
I
got
a
clear
morning
so
requirements
for
solar
if
you've
got
a
larger
objective
scope.
B
So
you
could
either
you
know
just
cut
down
on
the
opening
by
putting
some
kind
of
a
a
mask
or
you
could
get
some
kind
of
a
filter.
So
you
can
just
use
a
yellow
or
red
photographic
filter,
which
is
what
I
did.
I
got
a
a
yellow
one,
but
you
know
if
you,
if
you're
going
all
out
for
the
the
12-inch
sct
as
a
solar
scope
or
something
then
then
you've
got
a
problem
with
and
people
do
sell.
B
Scts
completely
customized
for
solar,
but
it's
quite
expensive,
just
the
the
energy
rejection
filter
for
that
in
itself
is
like
a
thousand
bucks
or
something
I
think
so,
it's
crazy.
So
anyway,
that's
one
thing
you
need,
and
then
you
know
I'm
using
this,
this
camera
quark,
so
I've
got
a
separate
slide
on
it.
I
think,
but
it
it's
made
up
of
it's
it's
made
to
go
on
canon
lenses.
B
So
I
don't
know
you
can
kind
of
tell
there's
a
canon
lens,
adapter
there
and
another
one
here,
and
then
I'm
adapting
it
back
to
threaded
connections
for
for
the
scope
and
I'm
moving
my
mouse
on
the
wrong
picture
here.
So
there's
one
here
and
canon
eos
mount
here
and
then
you
know
I
have
other
adapters
added
to
convert
that
back
to
to
threads
for
for
astrophotography
purposes,
but
it's
designed
for
a
canon
lens
and
a
dslr.
B
This
is
the
edilon
filter,
which
is
the
the
h,
a
filter
and
that's
a
an
oven
with
the
optical
components
in
it,
and
you
adjust
the
this.
The
center
frequency
of
that
filter
by
adjusting
the
heat
of
the
of
the
oven
or
the
temperature
of
the
oven.
So
there's
a
knob
here
for
that
and
you
it's
got,
I
think
nine
detents.
B
B
So
we
talked
about
the
filter
and
oh
and
so
then
another
problem
that
you
have
with
with
solar
scopes
is
newton's
rings
and
it
has
to
do.
It
has
to
do
with
an
interference
pattern
that
sets
up
on
the
on
the
sensor
and
the
solution
is
to
either
tilt
the
camera
ever
so
slightly.
So
the
you
know,
maybe
two
degrees,
so
the
the
sensor.
B
B
So
you
could
put
a
a
two
inch
filter
in
there,
and
so
I
made
a
again
a
3d
printed
part
where
I
could
glue
the
this
prism
tilt
prism
into
that
part
and
then
thread
it
into
the
two
inch
filter
threads,
so
that
got
rid
of
my
newton's
rings
so
that
the
newton's
rings
look
like
like
a
fresnel
pattern.
You
know
just
a
series
of
concentric
rings,
so
you
don't
want
that.
So
that's
that's!
How
I
got
rid
of
that.
B
D
D
D
B
Yeah,
so
that
that
image-
let
me
back
up
here
if
I
click
in
here
and
then
yeah
so
whoops,
so
this
was
30
000
frames,
but
I
took
the
best
one
percent,
so
300
frames.
So
this
is
a
stack
of
300
frames,
so
out
of
30
000
frames
that
took
you
know,
maybe
I
forget
exactly
how
long
it
took,
but
it
was
less
much
less
than
a
minute.
B
It
was
really
fast
because
also
because
the
area
is
so
small
right,
that's
the
other
thing
is
you're
you're
using
a
region
of
interest
on
your
your
camera
sensor,
you're,
not
using
the
whole
thing,
because
again,
you're
trying
to
go
as
fast
as
you
can
so
reducing
the
amount
of
data
that
you
have
to
transfer
by
reducing
the
region
of
interest.
Lets
you
go
faster
and
faster
right.
D
B
And
what
what
I'd
learned?
Maybe
it
would
it's
obvious
in
in
hindsight,
but
when
I
was
working
on
mars
for
for
a
couple
weeks
there
you
know
at
first
I'm
I'm
like.
Why
is
this
guy
who's?
I
picked
this
guy
as
my
expert
right
and
followed
his
formula,
and
it's
like:
why
is
he
taking
50
of
his
3
000?
In
that
case
frames?
B
D
D
One
picture
would
be
better,
so
if
you
could
shoot
at
a
thousandth
of
a
second
or
a
five
thousandth
of
a
second
one
picture
should
be
sharper
than
a
stack
of
a
hundred
where
you're
trying
your
best
to
align.
You
know
to
get
lucky
and
have
all
those
hun
you
know
find
the
hundred
that
are
sort
of
aligned.
D
B
The
the
initial
result
of
the
stacking
looked
better
at
one
percent,
but
you
couldn't
hardly
sharpen
it
without
artifacts,
whereas
going
back
to
50
now,
you've
got
much
more
in
the
stack,
so
much
more
detail
hidden
there
in
the
data
it
was
able
to
be
sharpened
quite
a
bit
quite
a
bit
more.
So
that's.
F
There's
one
point
you're
missing
here:
if
you
take
a
simple
picture
of
the
sun,
you
are
not
only
taking
a
picture
of
the
sun
you're,
also
taking
a
picture
of
the
atmosphere
which
has
all
these
variation
of
waves
across
it.
So
in
other
words,
a
portion
might
be
a
little
bit
in
focus
a
very
short
distance
away.
D
F
F
It's
if
you're
looking
you're
looking
through
the
atmosphere
like
you're
looking
through
water,
that's
got
ripples
in
it
and
depending
on
how
much
rippling
and
how
much
turbulence
is
going
on.
That's
why
you
have
to
take
a
lot
of
shot
so
that
you
can
average
that
and
then
from
that
be
able
to
pull
out
with
the
sharpening
algorithms
the
detail
that
is
real
and
be
able
to
sharpen
it.
So
you
can
take
a
picture,
but
it's
not
going
to
have
much
to
do
with
the
reality
of
the
actual
sun,
with
just
a
single
shot.
E
Yeah,
a
single
picture
will
be
with
a
very
low
signal
to
noise
ratio,
so
basically,
when
we
stack
we're
trying
to
increase
signal
towards
ratio
so
much
right.
Otherwise,
yes,
you
can
take
one
image
but
will
be
very
dark
right
and
your
scene
will
be
very
low
and
you
still
have
details
but
will
be
half.
D
It
doesn't
have
to
be
dark
if
it's
the
sun,
I
mean
you
have
as
much
light
as
you
want
as
long
as
you're
not
burning
up
your
camera,
so
my
assumption
was,
you
could
control
it
such
that
you
know
with
a
thousandth
of
a
second
exposure
or
a
5
000th.
You
could
freeze
it
and
you
shouldn't
have
any
signal
to
noise
problems.
Now
the
atmospheric
this
version
across
the
image
argument:
okay,
maybe
I'll,
buy
that,
but
in
terms
of
snr,
no
there's
no
reason.
This
thing
is
so
bright.
B
B
B
B
What
the
frame,
what
the,
what
the
actual
exposure
time
was,
but
it
was,
you
know,
milliseconds,
it's
36
frames
a
second,
you
sure
it's
not
a
30th
of
a
second
I'm
sure
yeah,
because
the
limit
the
limit
here
is
due
to
the
the
region
of
interest.
I
chose
to
get
more
of
the
surrounding
detail
of
the
of
the
sunspot.
B
If
this
was
you
know
mars
or
something
I
would
be,
the
region
of
interest
would
only
be
about
this.
Big
would
only
be
like
a
quarter
of
it
and
this
camera
can
go
at
150
frames
per
second
in
that
case,
but
this
is
just
limited
by
the
by
the
speed
of
the
the
amount
of
data
and
the
speed
of
the
interface
between
the
camera
and
the
and
the
computer.
But
anyway
you
can
see
here
the
all
the
roiling
atmosphere
and
the
other
point
I
wanted
to
make.
B
Is
it's
not
necessarily
about
signal
to
noise?
It's
about
the
the
detail
that
you
can
pull
out
with
with
the
sharpening
and
again,
that's
why
I
wanted
to
show
you.
This
is
not
very
bright,
but
this
this
is
what
the
out
the
stacked,
300
stacked
frames
looked
like,
and
then
I
went
from
from
that
to
to
this
with
the
wavelet
sharpening
basically
and
other
photoshop
nonsense.
B
Okay
yeah,
so
that's
f,
30.32
arc
seconds
per
pixel
on
the
12
inch
or
no
on
the
I'm
sorry
on
the
80
millimeter
refractor.
So
we
talked
about
the
energy
rejection
filter.
So
this
is,
I
forget,
whatever
it's
not
80
millimeters,
but
whatever
the
the
biggest
yellow
filter
I
could
find,
was
and
there's
no
filter
threads
on
the
the
refractor.
B
B
You
know
situation
unless
you're
up
a
couple
floors
and
it'll
just
pick
the
best
moments
of
of
seeing
to
do.
You
know
a
30,
000
frame
capture
and
then
you'd
take
the
best
of
those
kind
of
things,
but
I
haven't
didn't
have
time
or
to
get
that
all
going,
and
I
just
captured
the
data
and
and
went
with
it,
but
that's
so
anyway.
That's
the
energy
rejection,
filter.
B
Okay,
so
here's
what
the
solar
rig
looks
like
on
the
scope,
so
you
can
see
that
energy
rejection
filter
slid
over
the
dew
shield
and
the
solar
scintillation
monitor.
Is
there
there's
also
a
solar
finder,
and
I
have
to
put
when
you,
when
you
use
a
barlow,
it
moves
your
focal
plane
out
as
opposed
to
in
like
a
focal
reducer.
B
B
Let's
see,
did
we
talk
about
everything
yeah,
the
camera
quark
comes
in
two
models.
The
mine
is
for
the
chromosphere
versus
the
the
I
always
want
to
say
flares,
but
that's
not
technically
correct
right,
the
prominences,
but
I
think
most
people
buy
the
chromosphere
because
they're
somewhat
okay
for
prominences
and
the
promise
prominence
model
is
not
as
good
for
the
surface
detail
of
the
sun.
B
B
So
yet
another
thing
you
can
do
with
with
the
light
from
objects
in
in
the
sky.
So
this
this
is
just
a
slide
from
the
talk
I
gave
back
in
2018
and
I
was
trying
to
see
if
I
could
measure
the
the
redshift
of
a
galaxy.
I
think
it
was-
and
this
slide
was
about
about
doing
that-
that
measurement
yeah.
This
is
a
galaxy.
U
ugc,
545
and
we're
comparing.
B
B
So
you
can
think
of
it
like
a
depth
of
field
in
a
in
a
terrestrial
camera
right,
you
have
a
higher
f-stop,
you
have
more
depth
of
field,
and
so
that
makes
it
easier
to
focus
and
get
the
critical,
sharp
detail.
You
need
to
see
those
lines
in
the
in
the
spectrum,
so
there's
various
types
of
spectroscopes,
the
the
grading,
the
prism
slit
and
then
there's
combinations
of
all
of
the
above.
B
So
this
particular
instrument
package-
and
you
see
I-
I
dropped
all
the
way
back
to
a
canon
t3
here,
although
I'll
be
changing
this
to
a
asi
1600,
I
wasn't
sure
that
the
the
spectrum
would
fit,
because
this
particular
rig
was
excuse
me
designed
specifically
for
a
dslr
crop
sensor,
sensor
size,
so
so
yeah.
So
I'm
doing
this
on
the
william
optics
refractor.
B
So
again,
it's
that
adjustable
barlow
from
the
planetary
rig,
and
this
is
why
I
wanted
to
take
pictures
and
document
all
these
different
things
so
that,
if
I'm
moving
things
around,
I
can
get
back
to
to
where
I
was.
If
I
want
to
go
back
and
do
planetary
and
take
this
apart
right,
so
there's
a
grism
here
inside
this
there's
a
t-ring
and
a
nose
piece
here
and
the
grism
is
in
the
nose
piece
and
it's
fixed
in
terms
of
its
optical
distance
from
the
from
the
camera
sensor
and
then
there's
a
way.
B
There's
a
thumb
screw
here
so
that
you
can
adjust
the
angle
of
the
spectrum
so
that
it's
along
the
horizontal
axis
of
your
your
sensor,
yeah.
So
the
adjustable
bar
low,
the
grism
and
then
the
guy
that
sold
the
grism
included
this
star
diagonal
with
a
an
eyepiece
and
the
eyepiece
is,
is
fixed
in
here
with
grub
screws
at
a
particular
setting.
So
the
idea
is
that
this
exactly
matches.
B
B
B
Okay-
and
so
here
are
the
two
types
of
spectroscopes
that
I
have.
This
is
the
star
analyzer
grading,
it's
about
two
hundred
dollars
and
then
this
grism
thing
was
about
three
and
a
quarter
off
of
cloudy
nights
and
then
the
next
step
up
unless
you're
gonna
make
your
own
is
like
three
grand
I
think
in
inspector
scope.
B
So
there's
a
big
gap
there
I
did
see
one
guy,
that's
got
a
a
nice
3d
printed
design
for
which
would
be
on
par
with
like
the
three
thousand
dollar
spectroscopes,
but
he
thinks
you
you're
going
to
spend
about
600
euros
to
to
in
optical
parts
and
all
the
printing
and
stuff
to
get
to
that
level.
So
I
don't
know
if
I'll
go
there,
but
we'll
see
since
I'm
3d,
printing
but
we'll
we'll
see.
B
So
the
the
the
grading
is
actually
on
the
diagonal
of
the
of
the
prism
here
and
that's
mounted
inside
this
t,
adapter
nose
piece
here
and
then
you
know
it
goes
and
puts
the
spectrum
on
the
on
the
sensor
and
the
the
reason
for
this
over
just
the
grading
by
itself
is
without
the
prism.
The
the
focal
plane
of
the
spectrum
is
actually
curved
right,
so
maybe
oops
sorry,
maybe
it's
perfectly
in
focus
in
the
red.
B
B
Yeah,
so
what
I
found
so
previously
with
with
the
the
grading
right,
it
just
depends
on
the
star
field
you're
looking
at.
But
but
you
know
you
you,
you
get
your
your
star
that
you
want
centered
right
and
so
then
you
can
identify
that
star
and
just
look
at
that
spectrum
from
that
star
and
if
there's
other
stars
that
are
causing
overlapping
spectra,
then
you
can
create
some
kind
of
mask
or
something
in
the
case
of
the
the
grismo.
B
B
In
it
seemed
like
there
was
only
one
bright
spectrum,
and-
and
again
you
remember
when
I
said
that
I
knew
if
I
plate
solved
on
on
one
scope.
I
knew
where,
in
the
other
scope
the
the
image
would
be,
you
know
the
actual
image
would
come
up
right.
So
the
the
spectrum
that
I
wanted
was
starting
at
that
location
on
the
on
the
sensor.
That
said
that
you
know
that's
the
object
that
I
centered
with
plate
solving
in
the
other
scope.
I
hope
that
makes
sense
so
so.
D
B
Not
yeah,
there's
some
there's
yeah.
I
wasn't
prepared
to
do
a
whole
spectacular
spectroscopy
talk
tonight,
but
I
can
recommend
so
so
watch
the
the
youtube
that
tom
field
did
the
speaker
talk
at
the
after
the
board
meeting
last
time
and
he
recommended
this
book.
Let's
see
if
I
can
astronomical
spectroscopy
for
amateurs
by
ken
harrison
who
I've
been
emailing
with
all
week.
B
So
there's
a
lot
of
good
information
in
in
that
book
and
he
talks
in
great
detail
about.
You
know
how
you
would
go
about
getting
absorption
lines
from
from
a
nebula
versus
a
point
source
like
a
star
or
a
planet.
I
did
he
he
talks
about.
You
know.
One
of
the
chapters
is,
you
know,
here's
some
beginning
projects
right,
so
it
talks
about
looking
at
the
methane
lines
from
the
atmospheres
of
uranus
neptune
and
I
forget
what
the
other
the
other
one
was.
B
So
basically
I
underexposed
the
the
data
I
was
being
too
cautious
to
make
sure
I
didn't
over,
expose
it
and,
as
a
result,
I
underexposed
it.
So
I
need
to
go
back
and
retake
the
data,
because
I
think
this
he
was
explaining
to
me
this
dip
right
here
is
actually
an
artifact
of
the
canon
bayer
matrix
on
on
basically
all
their
cameras,
and
so
it's
not
it's
not
really
a
valid
dip
in
the
in
the
spectrum
there.
B
You
know
this
is
you.
You
have
a
resolution
of
about
14.8
angstroms
and
with
the
star
analyzer.
You
know
it's
33
angstroms,
so
it's
not
quite
as
quite
as
precise.
This
is
data
from
the
from
the
star
analyzer
back
in
2018,
and
I
the
reason
there's
this
big
hole
here
is
because
I
took
it
through
a
light
pollution
filter
right,
so
there's
a
big
hole
cut
out
where
all
the
man-made
light
would
would
be,
but
so
the
this
this
is
a
synthetic
spectrum.
B
B
B
So
here's
my
astrophotographer
joke,
so
you
know
I
put
all
this
crap
on
the
on
the
scope,
which
is
was
really
long
and
then
I
went
in
the
house
and
had
it
slew
to
target,
and
then
I
came
back
out
and
it's
like.
Oh,
I
almost
hit
the
fence
so
yeah.
You
might
want
to
think
about
that
if
you're
putting
all
these
spacers
on
on
things.
B
B
A
F
F
Oh
there
we
go.
Oh
do
this,
okay,
so
this
is.
I
took
the
data
for
this
night
before
last,
and
this
is
80
minutes
of
data
with
the
gaza
80
exposures,
one
minute
a
piece-
and
this
is
in
versus-
and
this
is
one
of
the
most
massive
galaxy
clusters
that
we
know
about
it's
240
million
light
years
away,
give
or
take,
and
it
also
can
have
my
cursor
here.
F
Some
lenticulars,
not
too
many
spiral,
galaxies,
I'm
afraid
they've,
probably
gotten
all
eaten,
and
there
are
many
there's
a
lot
of
absorption
from
our
galaxy
and,
of
course,
in
intergalactic
space.
So
these
all
these
galaxies
have
been
quite
red,
and
so
I
was
able
to
bring
out
the
stars
and
give
them
a
little
bit
of
blue
color
just
to
give
some
stuff
to
it.
F
F
C
F
F
A
E
A
A
Of
course
pj,
but
if
you
do
do
a
live
stack,
you
can
discard
the
live
stack,
you
don't
have
to
keep
it
and
you
can
have
it
keep
each
of
the
individual
fit
files
that
you
save,
but
at
the
same
time,
if
you
do
it
using
the
live,
stack
option
or
subroutine,
whatever
you'd
call
it
in
sharp
cap,
then
you
can
do
dithering
using
sharp
cap
and
it
will
do
their
between
frames
instead
of
during
frames.
So
you
won't
waste
as
many
frames
and
you
should
have
a
lot
more
data.
F
A
F
F
A
A
I
H
I
I
Now
this
is
the
picture
I
captured
last
saturday
from
pinnacles
west,
it's
ic342
the
hidden
galaxy,
very
much
like
the
the
precise
cluster
that
pj
was
showing
this
one
also
sits
perspectively
relatively
close
to
the
milky
way.
So,
there's
lots
of
absorption
of
the
light
and
reddening
of
the
light
from
the
dust
in
our
galaxy,
and
so
the
the
galaxy
is
always
also
sits
in
the
middle
of
a
dense
star
field.
I
So
it's
hidden,
and
so
that's
where
the
name
comes
from
with
by
by
a
curtain
of
stars
that
I
tried
to
render
here
without
doing
my
usual
star
reduction,
so
that
you
can
see
the
the
density
of
the
star
field
and
the
colors.
If
I
zoom
in
galaxy
still
has
a
has
a
very
nice
spiral
shape.
You
can
see
some
interesting
dust
lanes,
some
h2
regions
in
the
galaxy,
and
for
me
this.
This
image
is
also
interesting
because
it's
the
first
one
that
I
captured
using
automation.
I
If
you,
if
you
know
how
I
image,
I
always
kept
a
very
low
tech
approach,
keep
it
simple
with
basically
without
using
a
computer
for
acquisition,
I
have
a
standalone,
auto
guider.
I
have
a
standalone
focusing
system
and
I
use
a
dslr,
so
I
just
programmed
the
sequence
in
the
in
the
guider
and
I
let
it
run
with
the
disadvantage
that
I
have
it's
not
really
unattended.
I
have
to
do
meridian
flips
myself
manually,
I
have
to.
I
I
don't
have
any
plate
solving
so
framing
is
always
a
little
bit
complicated,
but
this
time
I
decided
to
to
try
something
completely
new
for
me,
which
is
to
you
to
use
a
program
called
nina
nighttime,
imaging
and
astronomy
to
orchestrate
the
entire
capture
sequence.
So
I
programmed
nina
in
such
a
way
that
it
waited
for
night
to
fall.
I
I
wouldn't
have
started
with
my
mystery
imaging
journey
if
I
had
to
overcome
those
obstacles
right
off
the
bat,
but
at
this
point
I
think
I
see
the
advantage
not
so
much
from
from
a
dark
side
at
pinnacles,
but
from
home.
This
allows
me
to
capture
all
night
while
I'm
sleeping
which
I
know
that
it's
nothing
new
for
you.
But
to
me
this
was
a
big
big
improvement
in
my
workflow,
and
the
interesting
part
is
that
I
didn't
the
application.
I
One
of
the
reasons
why
I
was
so
stubborn
in
not
embracing
automation
is
that
some
of
my
hardware
in
particular
my
guider,
is
not
supported
by
by
most
of
automation,
software,
because
it's
not
really
a
camera.
It's
a
guiding
system,
it's
the
equivalent
of
a
phd2
plus
a
camera
not
of
a
camera
itself
in
itself,
so
nina
had
some
form
of
rudimentary
support
for
that
and
I
managed
to
given
it
its
open
source.
I
could
modify
the
code
myself
to
add
the
full
support
and
yeah
it
works.
It's
I'm
I'm
rather
impressed.
I
I
Yeah,
so
this
is
the
this
is
the
ui
of
the
program.
This
is
the
sequence
that
I
kept
they
used
to
capture
ic342,
you
see.
I
I
tell
the
program.
Wait
until
night
falls
then
salute
to
the
object
right
now.
It
gives
me
this
red
sign
because
it's
not
the
telescope
is
not
connected
center
and
rotate
start
guiding,
run
autofocus
and
then
start
taking
it
honoring.
A
meridian
flip
is
needed,
refocusing
if
the
hfr
increases
above
above
five
percent
and
then
capture
45
pictures,
each
of
them
480
seconds
with
my
well.
I
I
I
found
this
this
nebula
particularly
intriguing
because
of
all
these
dark
dust
lanes
that
you
can
see
here.
It's
called
the
angel
right.
Somebody
called
it
the
angel
nebula,
but
the
after
rogelio
imaged,
the
the
I
can't
remember
the
name,
but
he
imaged
an
image
which
is
part
of
the
ifn
that
he
calls
the
the
angel
nebula,
and
I
think
that
the
name
stuck,
and
so
I
think
the
rogelius
angel
has
superseded
this
one
but
yeah.
I
I
agree
with
you.
I
heard
the
I
heard
it
called
with
his
name.
I
It
is
extremely
faint.
It
takes
a.
It
requires
a
lot
of
way,
more
integration
time
that
I
gave
probably
10
to
12
hours.
This
is
only
three
and
has
some
nasty
reflections
from
gamma
monocerotis
and
from
another
starter.
They
couldn't
identify
yet
but
yeah.
If,
if
the
weather
cooperates
and
the
kovit
lets
us
go
out
of
the
of
the
county
still
in
december
and
january,
maybe
I'll
be
able
to
integrate
more
data.
I
I
Yeah
the
plate,
solving
is
a
big,
is
a
huge
improvement,
the
other
one
well
meridian
flip.
Of
course,
if
you
want
to
do
unattended,
imaging
and
the
other
thing
that
really
impressed
me
is
the
auto
focusing
so
I
was
using
a
basically,
I
have
a
focusing
system,
motorized
focusing
that
does
a
form
of
dead
reconning.
I
It
measures
the
temperature
and
has
a
calibration
curve.
That
knows
how
many
steps
the
focuser
needs
to
be
moved
inwards
per
each
celsius,
degree
of
dropping
temperature,
but
of
course,
there's
no,
it's
it's
an
open
feedback
system.
It's
you
never
know
until
the
sequence
is
done
and
you're
looking
at
the
images
by
using
this
nina
or
other
softwares
that
can
support
focusing
using
the
the
main
camera
as
the
detector.
For
focusing
it's
all
the
guesswork
is
is
gone.
I
You
have
a
nice
very
nice
v
curve
and
it
determines
the
the
best
best
focus
point
and
the
constantly
monitors
the
hfr
during
the
night.
And
so,
if,
if
something
changes,
then
it
can
trigger
refocusing
in
the
case
of
my
imaging
experience
at
pinnacles
when
it
when
the
hfr
degraded.
Unfortunately,
it
was
because
of
dew
and
not
because
of
refocusing
so
that
spelled
the
end
of
the
night
for
me,
but
yeah.
That
was
a
very
fun
experience.
I
Yeah,
so
let
me
go
back
to
my
windows
terminal,
so
I
can
show
you
so
this
is
the
what
they
call
it.
The
advanced
scheduler
you
can
have
conditions
like
wait
for
time,
wait
until
the
the
object
has
reached
a
certain
altitude
and
when,
when
the
altitude
goes
up
below
a
certain
threshold,
you
can
schedule
of
course,
are
using
it
osc.
But
if
you
have
a
filter,
a
monochrome
camera
with
filters,
you
can
decide
to
do
only
certain
filters
depending
on
the
night.
I
I'm
not
sure
I,
unfortunately
I
don't
have
any
other
experience
with
the
things
like
sg
pro,
so
I
don't
exactly
know
what
to
look
for.
But
if
you
can
ask,
if
you
can
give
me
examples,
I
can
find
out
what's
available.
This
is
what
they
call
the
advanced
scheduler
there's
also
a
need,
an
easier
scheduler
that
has
a
fewer
options.
So,
for
instance,
you
cannot
set
those
conditions
like
wait
until
the
object
has
cleared
a
certain
altitude
and
so
on.
I
Okay-
and
it's
all,
drag
and
drop
you
can.
These
are
the
the
various
verbs
that
you
can
add
to
the
program
so
to
speak,
and,
for
instance,
you
wanted
to
program
in
such
a
way
that,
at
the
end
of
the
sequence,
the
scope
is
parked.
You
just
drag
this
where,
in
the
in
the
sequence,
you
want
it
and
it's
there
and
it
will
be
executed
after
the
sequence.
In
this
case.
A
Voyager,
which
is
another
sequencing
program,
or
you
know
in
general
astrophotography
program
for
capture,
has
something
called
drag
script
and
I
believe
it
works
in
this
a
similar
way,
dragging
things
in
in
order
for
each
thing
that
you
want
to
do
yeah
I
haven't
used
that
aspect
of
it,
but
it's
a
pretty
powerful
way
of
doing
things.
I
understand.
I
I
D
D
If
you
folks
saw
that-
and
so
you
know
I
basically
if
you're
familiar
if
you're
not
familiar
with
that,
that's
a
star
survey
right
that
some
satellite
did
where
they
I
don't
know.
I
think
they
got
like
half
a
billion
stars
detail
of
the
right,
the
positions,
the
proper
motion,
the
colors,
luminosities,
etc.
D
But
that
would
be
interesting
right
to
take
your
image
and
play
with
it
and
point
out
a
particular
and
and
get
details
about
it.
But
anyway,
as
far
as
I
could
tell-
and
I
did
send
an
email
to
rob
who
seemed
to
indicate
that
it
wasn't
doing
that
yet,
but
anyway
they
allowed
for
the
ability
to
do
that.
For
people
who
write
plugins,
I
guess
for
pix
insight
and
who
knows
perhaps
so
one
error,
one
whatever
his
last
name
is
and
we'll
do
that
right.
So
that's
interesting!
D
But
anyway,
that
got
me
interested
in
this
gaia
database,
which
one
can
access
anyway.
You
know
just
via
python,
so
I
did
this
one
little
thing
I'll
I'll
show
you
about,
since
I'm
taking
these
photographs,
photography,
astronomy
classes
and
everybody,
you
know
in
every
class
talks
about
hr
diagrams,
and
you
know
this
and
that
about
the
hr
diagram.
D
This
is
a
first
step,
but
what
this
is
is
is
the
the
start.
I
I
took
an
image
of
mine
at
m13
of
m13.
The
reason
I
took
m13
is
I
I
didn't
want
any
nebulous.
You
know
like
coloring
the
image
changing
the
colors
of
things.
I
don't
know
so
you
know.
Most
of
my
images
are
big
red
things
all
over
the
place
and
I
figured
that
would
sort
of
change
the
hr
diagram.
D
So
I
took
something
that
didn't
have
that
pj's
image
clearly
would
have
worked
too,
although
those
would
have
been
galaxies.
So
that's
a
whole
different
story,
and
I
anyway,
but
I
took
the
detections,
but
then
all
I
did
was
given
my
ras
and
decks.
You
know
queried
gaia
for
their
for
the
color
and
for
the
effective
for
the
effect
you
know,
for
the
color
and
for
the
absolute
luminosities
and
then
that's
that's.
What
an
hr
diagram
is
right.
D
It's
a
it's
a
loglog
plot
of
temperature
and
absolute
luminosity
so
anyway,
but
here
you
do
see
an
abs.
You
know
a
nice
hr
diagram
with
you
know,
there's
your
red
giant
part
and
there's
your
main
sequence
and
you
know
cut
off
here.
Maybe
because
I
s
you
know,
I
can't
I
don't
know
why
either
because
it
really
is
m13.
D
B
G
D
B
Going
to
say
that
sort
of
the
long
way
around
to
do
what
you
were
talking
about,
where
you
could
click
in
your
image
and
get
data,
you
know
you
can
put
your
image
in
stellarium
and
it
overlays
accurately
the
stars
that
are
there.
So
you
could
then
click
on
a
star
and
stellarium
would
tell
you
all
the
details
about
the
the
star.
D
Project,
the
the
the
important
piece
of
you
know,
ultima.
I
mean
I'm
sort
of
starting
with
the
hr
off
of
gaia.
Yeah
to
to
you
know,
to
see
where
I
screw
up
right.
Yeah
data
processing,
but
my
goal
is
to
be
able
to
you
know,
get
it
off
of
my
telescope,
but
I'll
always
need,
I
believe,
the
gaia
parallax.
D
You
know
how
far
this
star
is
right,
because
I
mean
you
know
if
you
use
apparent
luminosity,
that's
a
different
hr
diagram,
but
it's
not
quite
the
same,
but
you
know
you
really
want
this
star's
absolute
luminosity.
You
know
how
bright
it
really
is,
and
for
that
you
need
the
distance,
so
I'll
always
be
bugging
a
gaia
for
the
distance,
but
okay
yeah.
I
D
E
D
E
Because
I
I
use
sastrumidj
to
detect
things,
but
it's
very
manual
and
real
astronomers.
They
use
it.
They
don't
use
a
stream
with
j
because
they,
when
they
try
to
detect
something
like
supernova.
They
scan
really
big
parts
of
the
sky
per
night,
and
it's
fully
automated.
So
basically,
they
have
fully
automation,
protect
what
is
new
on
the
images
immediately
right
and
send
to
the
email.
D
B
By
the
way,
again
on
on
solarium,
sorry,
I'm
stuck
on
on
that
planetarium
versus
others,
but
I
recently
learned
that
you
can
bring
in
sky
surveys,
so
you
can
turn
off
the
nebula
images
that
that
we've
put
in
and
show.
Instead,
you
know
a
dss
survey
or
something
so
you
can.
Even
if
there's
not
a
nebula
image
there,
you
can
get
a
an
actual,
a
picture
of
that
area
of
the
sky,
to
kind
of
see
what
framing
you
might
want
to
use
and
stuff.
So
it's
kind
of
handy.
D
B
B
Yeah,
the
the
the
framing
and
mosaic
wizard
in
sgp
is
nice.
That
way,
and
then
you
can
put
in
the
name
of
an
object
and
it'll
go,
get
a
dss
survey
for
whatever
degree
size
you
tell
it
or
you
can
give
it
an
astro
bin,
url
and
it'll
figure
out
where
that
is
in
the
sky
and
pull
in
that
sky
survey
or
you
can
put
in
you
know
our
in
deck
and
then
you
can
draw
if
you're
doing
a
mosaic.
B
I
just
use
it
mostly
just
for
single
frames
to
figure
out
how
I
want
to
rotate
the
camera
right
and
how
I
want
to
position.
You
know
the
framing
and
framing
basically,
but
you
can
also
you
know
just
draw
a
rectangle
and
and
it'll
say:
well,
that's
you
know
4x4
or
5x8
or
whatever
mosaic.
So
you
can
compose
your
mosaic
that
way
too.
So
that's
that's
a
pretty
cool
feature.
B
A
A
A
B
A
A
I
don't
know
if
it
would
work
with
the
new.
You
know
the
big
sur
version,
that's
what
I
was
wondering
I
mean
we
have
had
issues
in
the
past
where
things
changed
and
then
and
fixing
site
didn't
work
with
the
newer
version.
So
I
was
just
wondering
if
anybody
had
anything,
I'm
not
I'm
not
planning
on
upgrading
anytime
soon.
I
think
they're,
probably
a
lot
of
growing
pains
that
have
to
be
worked
out
with
the
new
mac
os.
But
it
looks
interesting.
I
D
B
E
A
B
E
B
E
B
I
mean
you'd
have
to
read
through
all
the
stuff,
but
they're
they're,
trying
to
to
monetize
and
and
in
some
ways
I'm
I'm
a
little
upset.
It's
like
they're
they're,
trying
to
take
over
astro
bin.
It's
like
they're,
trying
to
be
the
place
where
people
post
their
image
and
and
the
social
interaction,
and
all
that
so
maybe
competition
is
good,
but
I
you
know
I
I
feel
a
little
bit
like
it's
going
to
dilute
the
community
some
but
and
then
they're
they're,
offering
what
they're
calling
pro
data
sets.
B
They
have
a
very
different
approach.
It's
more!
It's
more
automated!
Where
you
just
put
in
a
request.
It's
like
well
yeah.
I
want
to
use
this
particular
telescope
in
chile
and
I
want
this
mini.
Aha,
whatever,
but
you
don't
go
and
pick
date
and
time
in
a
schedule
right,
they
just
manage
all
that
for
you
and
then
they'll
come
back
and
say:
okay!
Well,
you
wanted
that
stuff
and
we
think
it'll
be
done
on
november
30th
and
you
know
check
back
with
us
and
see
if
it's
done
or
not
kind
of
thing.
B
B
B
B
B
Photometry
tonight
and
you
know,
there's
we've
had
talks
in
the
past.
The
high
school
did
the
radio
telescope
project
and
we
had
going
back
a
couple
years.
We
had
the
the
high
school
twins
that
did
the
the
exoplanet
search
and
and
wrote
software
for
nasa
and
all
that
stuff.
So
I
you
know
I
I
don't
want
to
do
it
myself,
but
I'd
really
like
it.
B
If
somebody
would
launch
a
program
around
citizen
science,
because
I
think
there's
well
and
another,
you
know
so
I
have
this
camera
that
that
tracks
fireballs,
that
seti
consumes
the
data
and
all
that.
So
that's
another
example
right.
So
there's
lots
of
different
things
that
elements
of
astronomy
or
corners
of
astronomy
that
you
can
get
involved
in
and
and
do
sort
of
pro-amateur
do
real
science
right
and
help
help
the
pro
astronomers
do
their
job
and
stuff.
E
E
It
actually
is
very
nice
for
everybody,
because
sometimes
we
take
subs
and
fit
files
and
data,
and
also
actually
I
found
a
story
to
the
image
yeah
and
I
didn't
know
actually
so
after
it
until
I
actually
did
the
stack
I
found
something
is
moving
and
then
I
sent
to
a
stormers
and
they
say:
oh
you
know
disaster.
It
don't
worry.
B
All
right,
I
I
saw
something
when
I
was
taking
my
spectroscopy
there.
I
said
it
data
on
on
saturday
or
sunday,
and
I
went
back
to
look
for
it
the
next
night
and
it
wasn't
there.
So
I
don't
know
if
it's
I'm
trying
to
bring
it
up
here
if
it
was
just
a
cloud,
but
it
looked
like
it
like
a
nebula
where
there
shouldn't
be
a
nebula.
B
B
B
B
B
I
E
B
B
B
G
G
Otherwise
I
have
only
two
hour
or
one
half
hour
for
each
target,
but
now
I
see
from
francesco
presentation
before
that
also
nina's,
starting
to
have
a
scheduler
in
order
to
have
the
possibility
to
have
a
more
job
one
after
the
other.
So
maybe
I
will
look
at
that.
You
know
I
I
decided
to
to
run
away
from
sgp,
so
I'm
in
search
of
eternity.
G
G
Probably
I
will
due
to
the
fact
that
is,
and
another
problem
was
that
for
nina-
that
the
astro
mechanic
cannon
focuser,
the
one
from
russia.
They
were
not
having
the
the
indie
driver,
and
so
that
was
precluding
both
nina
and
k-star.
But
since
a
couple
of
months
ago
they
have
that.
So
that's
another
good
option
and
I'm
using
I'm
using
that
that
focuser
from
astro
mechanics
and
is
working
very
well
good.
G
B
Yeah
well,
the
the
whole
observatory
control
system
is
is
a
topic
that
I
think
you
and
I
should,
or
one
of
us
I
can
volunteer
you
could
present
on
people
are
probably
tired
of
hearing
from
me,
but
that's
another
thing
that
that
you
know
we've
been
working
on
during
the
the
covid
thing.
So,
even
though
we
don't
have
observatories
it's
kind
of
nice
to
have
all
the
weather
sensors
telling
you
what's
going
on.
G
E
G
B
B
Yeah,
so
these
these
are
there's
a
whole.
I
don't
know
if
I've
mentioned
this
before
this
observatory,
control
system,
there's
a
whole
forum
and
everything-
and
this
guy
has
written
some
nice
arduino
software
to
to
monitor.
I
guess
I
could
bring.
I
could
bring
mine
up
here
to
show
you
what
it
looks
like
so
the
the
idea
is,
you
know
if
you've
got
an
observatory,
it
can
manage
the
the
heating
and
cooling
and
the
dome
and
the
hole
in
the
safety
and
observing
conditions
all
that
stuff.
B
B
B
B
So
just
this
is
the
the
overview
and
it's
all
modular.
So
you,
you
add,
there's
a
config
file
where
you
say
you
know:
I've
got
a
rain
sensor
and
I've
got
a
sky
quality
sensor,
and
so
you
just
add
all
that
stuff
in
and
what
your
limits
are
for
safety
and
unsafety
and
stuff
so
see.
Here.
It's
telling
me
it's
unsafe
to
observe,
because
it's
very
cloudy
right
now.
B
So
this
is
the
just
the
main
status
panel
and
I
added
in
the
dc
power
supply
voltage
there
and
then
I've
got
a
a
thermostat.
You
know
again,
I
don't
have
an
observatory,
but
the
box
that
I
put
all
this
stuff
in
is
too
small
and
it
gets
hot.
So
I
put
a
fan
in
there,
so
it
it.
You
know
the
fan
turns
on
at
a
certain
temperature
and
then
you've
got
weather
and
I've
added
these
weather
sensors.
B
B
I
wonder
if
I
ran
out
of
disk
space
or
something
I
haven't
looked
at
the
graphs
in
a
few
weeks,
but
anyway
you
get
graphs
of
everything,
but
for
some
reason,
mine's
not
showing
up
I'll,
have
to
troubleshoot
that,
but
any
there
is
a
there
is
an
ascom
driver
that
part's
not
open
source.
The
rest
of
this
is
open
source
that
you
can
hack
and
slash,
but
you
pay,
I
think,
10
bucks
or
something
for
the
ascom
driver
and
so
sgp
can
can
consume
this
safe
and
unsafe.
B
B
G
E
B
B
B
Other
than
that,
the
only
thing
that's
not
working
is
the
the
wind
sensor.
I
mean
I'm
getting
the
temperature
from
the
outside
temperature
via
the
wind
sensor,
but
for
some
reason
the
wind
sensor
itself
always
reads
zero
so
and
I've
I'm
on
my
second
one.
So
I
still
need
to
troubleshoot
that
I'm
sure
it's
a
connection
problem,
but
the
damn.
B
B
Oh,
by
the
way,
this
is
sort
of
out
in
the
weeds,
but
one
of
the
things
in
this
this
astronomical
spectroscopy
book
is
there's
a
tear
down
of
that
flip
mirror.
So
I
can
finally
figure
out
how
to
get
the
damn
knob
off
the
thing
so
that
I
can
make
a
better
mechanical
connection
to
the
to
the
knob,
but
they
in
here
they
teach
you
how
to
tear
it
apart
and
make
it
into
a
beam
splitter.
A
A
B
Yeah,
no,
it's
not
just
you
know,
there's
been
a
few
times
where
I've
I've
thought
you
know,
I
should
just
go,
do
a
do
a
workshop
and
just
tell
people
to
stand
six
feet
apart,
but
every
time
it's
gotten
close,
then
there's
been
another.
You
know,
checking
the
the
santa
clara
county
website
or
the
osp
or
there's
high
fire
danger
and,
and
the
osp
has
said
no,
so
we
just
right
now
we
just
don't
have
permission
to
take
anybody
but
docents
to
an
osp
site.
So
I
guess
that
could
be.