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, 


    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


    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...


    Sky plot

    Sky plot


    M81 with mixed setups,