Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031

Image of the day 03/17/2016

M81 with mixed setups, 



    
        

            Epicycle
M81 with mixed setups
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M81 with mixed setups

Technical card

Imaging telescopes or lenses: Teleskop-Service RC 6"

Imaging cameras: Atik 460EX Mono

Mounts: Sky-Watcher HEQ5 PRO

Guiding telescopes or lenses: Teleskop-Service RC 6"

Guiding cameras: Loadestar

Focal reducers: Astro Physics CCDT67 Telecompressor

Software: SequenceGeneratorPro  ·  PixInsight 1.8  ·  Photoshop  ·  PHD2  ·  EQMod

Filters: Baader L 1.25'' Filter  ·  Hutech Idas LP

Accessory: Lakeside Astro Motor Focus System  ·  Starlight Xpress Mini Filter wheel


Dates:March 6, 2016

Frames: 38x600"

Integration: 6.3 hours

Avg. Moon age: 26.64 days

Avg. Moon phase: 9.14%


Basic astrometry details

Astrometry.net job: 1005406

RA center: 9h 55' 25"

DEC center: +69° 4' 30"

Pixel scale: 1.031 arcsec/pixel

Orientation: -91.688 degrees

Field radius: 0.461 degrees


Resolution: 620x517

Description

The colour information comes from my earlier image http://astrob.in/160225/0/
(130PDS and Atik 460). Star colour is not great, but the galaxy is fine, so I'm happy with the mix. I may get some RGB layer with the RC6 if weather allows...

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M81 with mixed setups, 



    
        

            Epicycle