Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  M 31, Great Nebula in Andromeda, NGC 224, M 32, NGC 221, M 110, NGC 205
Getting plate-solving status, please wait...
Messier 31, the Andromeda Galaxy, 


            Cory Schmitz
Messier 31, the Andromeda Galaxy

Messier 31, the Andromeda Galaxy

Technical card

Imaging telescope or lens:Vixen ED80SF

Imaging camera:Canon 550D


Guiding telescope or lens:Vixen Finderscope 9x50

Guiding camera:Orion StarShoot AutoGuider

Focal reducer:Orion Field Flattener for Short Refractors

Software:O'Telescope BackyardEOSPixInsightPHD Guiding

Resolution: 2601x1733

Dates:July 5, 2013

Integration: 0.0 hours

Avg. Moon age: 27.03 days

Avg. Moon phase: 6.91% job: 83630

RA center: 10.792 degrees

DEC center: 41.254 degrees

Pixel scale: 2.967 arcsec/pixel

Orientation: -177.965 degrees

Field radius: 1.288 degrees


A few weeks ago (July 4, 2013), I was in Wayne County, Iowa, in search of dark skies (Bortle grey). This was the last target I imaged on this trip, on a whim, because I had about an hour until dawn and was finished with my other targets. Oddly it is also the first deep-sky data from that trip I've processed.

It was very early in the season for M31, as it was low, but when you're in dark sky country -- it doesn't matter. This is what only 45 minutes of data gave me.

Total integration time: 45 minutes
9x5m sub exposures
ISO800 f/7.5

42 Dark
30 Flat
107 Bias

Vixen ED80sf 80mm APO refractor
Celestron CG-5 ASGT mount
Orion SSAG autoguider + 50mm guide scope
Canon T2i 550D DSLR (Baader IR modded)
Orion Field Flattener

Image acquisition with BackyardEOS
Guiding with PHD
Calibration/alignment/integration and post-processing with PixInsight



Cory Schmitz
License: None (All rights reserved)

Sky plot

Sky plot


Messier 31, the Andromeda Galaxy, 


            Cory Schmitz

Made possible by

O'Telescope BackyardEOS