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





    
        

            *philippe Gilberton
m 81

m 81

Technical card

Resolution: 1215x1215

Dates:April 20, 2018Feb. 11, 2019Feb. 24, 2019May 13, 2019

Frames:
10x300" (gain: 139.00) -28C bin 1x1
Hutech IDAS LPS D1: 18x180" ISO1600 15C bin 1x1
Hutech IDAS LPS D1: 26x60" ISO1600 15C bin 1x1
Hutech IDAS LPS D1: 11x166" (gain: 180.00) -20C bin 1x1
Hutech IDAS LPS D1: 58x57" (gain: 180.00) -20C bin 1x1

Integration: 3.6 hours

Avg. Moon age: 9.98 days

Avg. Moon phase: 49.04%

Bortle Dark-Sky Scale: 4.00

Astrometry.net job: 2994428

RA center: 9h 55' 33"

DEC center: +69° 4' 12"

Pixel scale: 0.814 arcsec/pixel

Orientation: 88.224 degrees

Field radius: 0.194

Data source: Backyard

Description

m81 processed with ASI174MM-C for L, with Canon 6D for rgb and ASI1600 MM pro for halpha.

Comments

Author

philippe_gilberton
*philippe Gilberton
License: None (All rights reserved)
1830
Like

Revisions

  • m 81, 





    
        

            *philippe Gilberton
    Original
  • m 81, 





    
        

            *philippe Gilberton
    B
  • m 81, 





    
        

            *philippe Gilberton
    D
  • Final
    m 81, 





    
        

            *philippe Gilberton
    E

B

Halpha layer added

D

reprocessed image with better color balance and star size reduction

E

enhanced halpha layer

Sky plot

Sky plot

Histogram

m 81, 





    
        

            *philippe Gilberton