Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031
M81 under very polluted sky, 



    
        

            Karlov
M81 under very polluted sky
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M81 under very polluted sky

M81 under very polluted sky, 



    
        

            Karlov
M81 under very polluted sky
Powered byPixInsight

M81 under very polluted sky

Equipment

Imaging Telescopes Or Lenses
GSO RC 8"
Imaging Cameras
Atik One Mono 6.0
Mounts
Skywatcher NEQ6-Pro
Filters
Astronomik L 1.25" Type IIc · Hutech IDAS 2" LPS-P2 · Astronomik B 1.25" Type IIc · Astronomik G 1.25" Type IIc · Astronomik R 1.25" Type IIc
Accessories
OAG
Software
Pleiades Astrophoto Pixinsight Core 1.8
Guiding Telescopes Or Lenses
GSO RC 8"
Guiding Cameras
ATIK GP

Acquisition details

Dates:
June 5, 2015
Frames:
42x300" (3h 30')
Integration:
3h 30'
Avg. Moon age:
17.69 days
Avg. Moon phase:
90.65%

Basic astrometry details

Astrometry.net job: 679959

RA center: 09h55m37s.2

DEC center: +69°0148

Orientation: -113.120 degrees

Field radius: 0.184 degrees

Resolution: 1750x1441

Locations: Observatorio Urbano en Palma de Mallorca, Palma de Mallorca, Balears, Spain

Description

I'm giving up on this one. I've experimented with low exposition time and F8 telescope and the result is a disaster.

Comments

Revisions

  • M81 under very polluted sky, 



    
        

            Karlov
    Original
  • M81 under very polluted sky, 



    
        

            Karlov
    B
  • Final
    M81 under very polluted sky, 



    
        

            Karlov
    C

Sky plot

Sky plot

Histogram

M81 under very polluted sky, 



    
        

            Karlov