Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 31  ·  M 32  ·  NGC 221  ·  NGC 224
M31. The Andromeda Galaxy., 



    
        

            mads0100
M31. The Andromeda Galaxy.
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M31. The Andromeda Galaxy.

M31. The Andromeda Galaxy., 



    
        

            mads0100
M31. The Andromeda Galaxy.
Powered byPixInsight

M31. The Andromeda Galaxy.

Equipment

Imaging Telescopes Or Lenses
ED80
Imaging Cameras
SBIG ST-10 XME
Mounts
Mountain Instruments MI-250
Filters
Xagyl Comm 1.25" B · Xagyl Comm 1.25" Red · Xagyl Comm 1.25" G
Accessories
Astro-Tech 2" Field Flattener · SBIG CFW 10 · Moonlite CF 2" focuser with high resolution stepper
Software
PixInsight · Maxim DL
Guiding Cameras
SBIG ST-10 XME

Acquisition details

Dates:
Aug. 31, 2013 ·  Sept. 1, 2013 ·  Sept. 3, 2013
Frames:
Xagyl Comm 1.25" B: 50x180" (2h 30') -12C bin 1x1
Xagyl Comm 1.25" G: 60x180" (3h) -12C bin 1x1
Xagyl Comm 1.25" Luminance: 30x600" (5h) -10C bin 1x1
Xagyl Comm 1.25" Red: 50x180" (2h 30') -10C bin 1x1
Integration:
13h
Darks:
20
Flats:
15
Bias:
175
Avg. Moon age:
26.12 days
Avg. Moon phase:
13.68%
Bortle Dark-Sky Scale:
5.00
Mean SQM:
6.01
Mean FWHM:
3.50
Temperature:
28.00

Basic astrometry details

Astrometry.net job: 122311

RA center: 00h42m52s.1

DEC center: +41°1510

Pixel scale: 2.316 arcsec/pixel

Orientation: 98.601 degrees

Field radius: 0.787 degrees

Resolution: 2026x1370

Description

M31, The Andromeda Galaxy. Represents about 3 hours of data (RGB) collected over the last few nights. I've been steadily working towards an automated setup based around CCD Commander and my Foster Systems Roof Controller/Weather Station. This data was really just a bonus as the idea was to make sure the roof would open and close on its own with no user intervention. This also was a test case for switching to Focus Max. I had previous problems with it and was not looking forward to attempting it, but after following their new(er) HOWTO, it makes much more sense and worked.

Of note, I did do something I don't normally do to process this. I took out the luminance portion of the image early on and ran deconvolution on it. It really steadied up the stars and made it 'cleaner'. I think I will try this on future images and see how it comes out.

Comments

Revisions

  • Final
    M31. The Andromeda Galaxy., 



    
        

            mads0100
    Original
  • M31. The Andromeda Galaxy., 



    
        

            mads0100
    B
  • M31. The Andromeda Galaxy., 



    
        

            mads0100
    C
  • M31. The Andromeda Galaxy., 



    
        

            mads0100
    D
  • M31. The Andromeda Galaxy., 



    
        

            mads0100
    E

Sky plot

Sky plot

Histogram

M31. The Andromeda Galaxy., 



    
        

            mads0100