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Contains:  M 81, Bode's nebulae, NGC 3031
Getting plate-solving status, please wait...
M81 in HaLRGB, 





    
        

            Chuck's Astrophot...
M81 in HaLRGB

M81 in HaLRGB

Technical card

Resolution: 2208x1638

Dates:March 16, 2018March 18, 2018March 20, 2018March 16, 2019March 20, 2019April 9, 2019

Frames:
Astronomik Blue: 73x60" (gain: 139.00) -20C bin 1x1
Astronomik Blue: 120x30" (gain: 75.00) -20C bin 1x1
Astronomik Green: 76x60" (gain: 139.00) -20C bin 1x1
Astronomik Green: 120x30" (gain: 75.00) -20C bin 1x1
Astronomik Ha: 95x240" (gain: 139.00) -20C bin 1x1
Optolong L-pro: 600x30" (gain: 75.00) -20C bin 1x1
Astronomik Lum 1.25": 850x30" (gain: 139.00) -20C bin 1x1
Astronomik Red: 36x120" (gain: 139.00) -20C bin 1x1
Astronomik Red: 120x30" (gain: 75.00) -20C bin 1x1

Integration: 25.1 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 10.02 days

Avg. Moon phase: 33.49%

Astrometry.net job: 2648275

RA center: 148.939 degrees

DEC center: 69.075 degrees

Pixel scale: 1.110 arcsec/pixel

Orientation: 274.616 degrees

Field radius: 0.424 degrees

Data source: Backyard

Description

This is a complete rework of my previous attempt at processing M81. I also added Ha data to this version.

Comments

Author

YobSnob
Chuck's Astrophot...
License: None (All rights reserved)
10085
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Revisions

  • M81 in HaLRGB, 





    
        

            Chuck's Astrophot...
    Original
  • M81 in HaLRGB, 





    
        

            Chuck's Astrophot...
    G
  • Final
    M81 in HaLRGB, 





    
        

            Chuck's Astrophot...
    H

G

Minor fixes.

H

Updated star color.

Sky plot

Sky plot

Histogram

M81 in HaLRGB, 





    
        

            Chuck's Astrophot...