Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Bode's galaxy  ·  Cigar Galaxy  ·  Cigar galaxy  ·  M 81  ·  M 82  ·  M81  ·  M82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077  ·  NGC3077
Getting plate-solving status, please wait...
M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
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M81 / M82 with surrounding IFN

Getting plate-solving status, please wait...
M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
Powered byPixInsight

M81 / M82 with surrounding IFN

Imaging telescopes or lenses: Celestron RASA 8"

Imaging cameras: asi zwo 1600 pro

Mounts: Skywatcher AZ-EQ6 GT

Guiding telescopes or lenses: 9x50 Skywatcher finder-guider

Guiding cameras: zwo 224mc

Software: Photoshop CC 2020  ·  PixInsight

Filters: Baader UV/IR-Cut/L Filter 2"  ·  Baader Green Filter 2"  ·  Baader Red Filter 2"  ·  Baader Blue Filter 2"


Dates:April 22, 2020

Frames: 790x60" (13h 10')

Integration: 13h 10'

Avg. Moon age: 28.98 days

Avg. Moon phase: 0.34%

Bortle Dark-Sky Scale: 5.00


Astrometry.net job: 4295682

RA center: 9h 56' 5"

DEC center: +68° 57' 47"

Pixel scale: 1.969 arcsec/pixel

Orientation: -117.075 degrees

Field radius: 1.243 degrees


Resolution: 3215x3213

Locations: Home, Harrogate, North Yorkshire, United Kingdom

Data source: Backyard

Description

This is a second attempt at processing data taken last April, mostly experimenting with how to process/manage such high dynamic range. Unfortunately could not quite manage to tease out the colour of M82 beyond the centre of the galaxy and star shapes are not brilliant but never ceases to amaze me you can even capture this dust from light polluted skies.

Comments

Revisions

    M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
    Original
    M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
    C
    M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
    D
    M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
    E
  • Final
    M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell
    F

C

Description: Slightly warmer colour and a bit more noise reduction

Uploaded: ...

D

Description: Darker

Uploaded: ...

E

Description: M82 data from Esprit 100 merged - reds were lost in the haze around the galaxy

Uploaded: ...

F

Description: Increased contrast of background IFN / Darker version

Uploaded: ...

Sky plot

Sky plot

Histogram

M81 / M82 with surrounding IFN, 



    
        

            Tristan Campbell