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:  Great Nebula in Andromeda, M 110, M 31, M 32, NGC 205, NGC 221, NGC 224, The star 32And, The star νAnd
Getting plate-solving status, please wait...

Technical card

Dates:Sept. 30, 2019Oct. 27, 2019

AstroDon 5nm H-Alpha filter: 331x300" -15C bin 1x1
Astrodon Blue Tru-Balance E-Series Gen 2: 25x300" -15C bin 1x1
Astrodon Green Tru-Balance E-Series Generation 2: 25x300" -15C bin 1x1
Astrodon Luminance Tru-Balance E-Series Gen 2: 30x300" -15C bin 1x1
Astrodon Red Tru-Balance E-Series Generation 2: 32x300" -15C bin 1x1

Integration: 36.9 hours

Avg. Moon age: 15.39 days

Avg. Moon phase: 2.54%

Bortle Dark-Sky Scale: 2.00

Basic astrometry details job: 3174950

RA center: 0h 42' 4"

DEC center: +41° 9' 39"

Pixel scale: 8.620 arcsec/pixel

Orientation: 286.941 degrees

Field radius: 2.812 degrees

Resolution: 1390x1893

Data source: Amateur hosting facility

Remote source: DeepSkyWest


The protagonists of this image are those reddish clouds composed of Hydrogen Alpha that surround M31, although in order to reveal those clouds I had to squeeze the Ha data to the maximum.

After misinterpreting the data and deleting it because it didn't seem right to show an image that had little to do with reality, I decided to reprocess the Ha image from scratch, after trying to reveal it in different ways I decided to re-select the data again Ha, make a new flat master and make a severe cut to the image to try to deal with the vignette that had fooled me in the previous result, after about 10 hours of work I finally got the desired result, again I apologize for My previous erroneous result and I hope you like this new result even if the size is reduced.

Alberto Pisabarro.



Alberto Pisabarro


Sky plot

Sky plot


M31 and your Hydrogen Clouds (Reprocessed), 


            Alberto Pisabarro