Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031
Getting plate-solving status, please wait...
M81, 



    
        

            Dave B
M81
Powered byPixInsight

M81

Getting plate-solving status, please wait...
M81, 



    
        

            Dave B
M81
Powered byPixInsight

M81

Acquisition details

Dates:
March 10, 2018 ·  March 17, 2018 ·  March 18, 2018 ·  April 8, 2018
Frames:
Astrodon Gen2 E-Series Tru-Balance Blue: 15×600(2h 30′) -20°C bin 1×1
Astrodon Gen2 E-Series Tru-Balance Green: 11×600(1h 50′) -20°C bin 1×1
Astrodon Gen2 E-Series Tru-Balance Lum: 64×300(5h 20′) -20°C bin 1×1
Astrodon Gen2 E-Series Tru-Balance Red: 12×600(2h) -20°C bin 1×1
Integration:
11h 40′
Avg. Moon age:
18.95 days
Avg. Moon phase:
22.45%

Basic astrometry details

Astrometry.net job: 2070765

RA center: 09h55m34s.3

DEC center: +69°0408

Pixel scale: 0.557 arcsec/pixel

Orientation: 89.446 degrees

Field radius: 0.313 degrees

Resolution: 3235x2433

File size: 846.7 KB

Locations: Backyard observatory near Worcester, Massachusetts, near Worcester, Massachusetts, United States

Data source: Backyard

Description

There was a little more IFN visible before processing, but I was more interested in the galaxy.

Also, I didn't like what the Ha data did with the colors so I didn't use it. I may go back and try to add it at some point.

Comments

Sky plot

Sky plot

Histogram

M81, 



    
        

            Dave B

In these public groups

Cloudy Nights