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:  Triangulum galaxy, M 33, NGC 598
Getting plate-solving status, please wait...
M33 Triangulum Galaxy in HaLRGB, 


            Douglas J Struble
M33 Triangulum Galaxy in HaLRGB

M33 Triangulum Galaxy in HaLRGB

Technical card

Resolution: 4367x3494

Dates:Nov. 27, 2017Nov. 30, 2017Dec. 16, 2017Dec. 19, 2017

Astrnomik CLS-CCD: 561x60" -20C bin 1x1
Astrodon Blue Tru-Balance E-Series Gen 2: 95x60" -20C bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 93x60" -20C bin 1x1
Astrodon Ha 5nm: 23x240" (gain: 139.00) -20C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 114x60" -20C bin 1x1

Integration: 15.9 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 12.09 days

Avg. Moon phase: 37.14%

Bortle Dark-Sky Scale: 6.00 job: 1865115

RA center: 23.470 degrees

DEC center: 30.662 degrees

Pixel scale: 0.649 arcsec/pixel

Orientation: 273.593 degrees

Field radius: 0.504 degrees

Locations: Backyard Red Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard


Winter clouds came early this year. I wanted to have a lot of integration time in my red zone plus put some Ha as icing on the cake. There are some beautiful nebulas in M33 and wanted to bring that out.

The Triangulum Galaxy is a spiral galaxy approximately 3 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Milky Way and the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye.
The galaxy is the smallest spiral galaxy in the Local Group and it is believed to be a satellite of the Andromeda Galaxy due to their interactions, velocities and proximity to one another in the night sky. It also has an H-II nucleus.



Douglas J Struble
License: None (All rights reserved)

Sky plot

Sky plot


M33 Triangulum Galaxy in HaLRGB, 


            Douglas J Struble