Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  IC 2574  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  The star 22UMa  ·  The star 24UMa  ·  The star 27UMa  ·  The star 32UMa
Getting plate-solving status, please wait...
M81 & M82 and IFN!, 



    
        

            Björn Hoffmann
M81 & M82 and IFN!
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M81 & M82 and IFN!

Getting plate-solving status, please wait...
M81 & M82 and IFN!, 



    
        

            Björn Hoffmann
M81 & M82 and IFN!
Powered byPixInsight

M81 & M82 and IFN!

Acquisition details

Dates:
April 11, 2016
Frames:
40×60(40′) ISO800
Integration:
40′
Darks:
20
Flats:
10
Flat darks:
10
Bias:
30
Avg. Moon age:
4.61 days
Avg. Moon phase:
22.20%
Bortle Dark-Sky Scale:
3.00
Mean FWHM:
3.80
Temperature:
4.00

Basic astrometry details

Astrometry.net job: 1036678

RA center: 09h57m39s.6

DEC center: +69°2157

Pixel scale: 16.716 arcsec/pixel

Orientation: -89.966 degrees

Field radius: 5.546 degrees

Resolution: 2000x1306

File size: 2.5 MB

Locations: Darkest place in Franconia, Linden, Bavaria, Germany

Description

This is the second capture from my first galaxy night this year. I only wanted to capture M81 and M82, but in postprocessing I realized that the 40 minutes were enough to capture the integrated flux nebula! I am so happy right now!

Lens was at f/2.8

Version B: Contrast enhancement

Version C: Got rid of those nasty color gradients.

Version D: Experimental inverted monochrome (processed with Lightroom)

Comments

Revisions

  • M81 & M82 and IFN!, 



    
        

            Björn Hoffmann
    Original
  • M81 & M82 and IFN!, 



    
        

            Björn Hoffmann
    B
  • Final
    M81 & M82 and IFN!, 



    
        

            Björn Hoffmann
    C
  • M81 & M82 and IFN!, 



    
        

            Björn Hoffmann
    D

Sky plot

Sky plot

Histogram

M81 & M82 and IFN!, 



    
        

            Björn Hoffmann

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