Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 1184  ·  NGC 5169  ·  NGC 5194  ·  NGC 5195  ·  NGC 5198  ·  Whirlpool galaxy

Image of the day 03/10/2016

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    Messier 51, Whirlpool Galaxy, 



    
        

            rflinn68
    Messier 51, Whirlpool Galaxy
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    Messier 51, Whirlpool Galaxy

    Technical card

    Imaging telescopes or lenses: Teleskop Service TS Photoline 107mm f/6.5 Super-Apo

    Imaging cameras: SBIG STF-8300M

    Mounts: Orion HDX110

    Guiding telescopes or lenses: Teleskop Service TS Photoline 107mm f/6.5 Super-Apo

    Guiding cameras: QHY5L-II Mono

    Software: Sequence Generator Pro  ·  PixInsight  ·  Adobe Photoshop CS4  ·  Annie's Astro Actions  ·  Astrometry.net Local Solver  ·  EQASCOM  ·  Stark Labs PHD2 v2.5.0  ·  Cartes du Ciel  ·  Elbrus  ·  ProDigital Software Carbonis Actions

    Filters: Astrodon LRGB Tru-Balance E-series

    Accessory: Teleskop Service TSFlat2 field flattener  ·  Starlight Xpress Slimline OAG  ·  Starlight Xpress SX USB Filter Wheel 7x36mm  ·  Dew-Not heater strip  ·  Rigel nStep  ·  Ronald J. Keating Jr DewBuster Controller


    Dates:Feb. 10, 2016Feb. 11, 2016Feb. 12, 2016Feb. 13, 2016

    Frames:
    Astrodon Blue Tru-Balance E-series: 12x600" bin 1x1
    Astrodon Green Tru-Balance E-series: 12x600" bin 1x1
    Astrodon Luminance Tru-Balance E-series: 53x600" -20C bin 1x1
    Astrodon Red Tru-Balance E-series: 12x600" bin 1x1

    Integration: 14.8 hours

    Darks: ~20

    Flats: ~30

    Bias: ~100

    Avg. Moon age: 3.76 days

    Avg. Moon phase: 16.36%


    Basic astrometry details

    Astrometry.net job: 990845

    RA center: 13h 29' 53"

    DEC center: +47° 10' 4"

    Pixel scale: 1.585 arcsec/pixel

    Orientation: 179.538 degrees

    Field radius: 0.961 degrees


    Resolution: 3420x2716

    Locations: Little Piney Observatory, Hagarville, Arkansas, United States

    Description

    The Whirlpool Galaxy, also known as Messier 51a, M51a, or NGC 5194, is an interacting grand-design spiral galaxy with a Seyfert 2 active galactic nucleus in the constellation Canes Venatici. It was the first galaxy to be classified as a spiral galaxy. Recently it was estimated to be 23 ± 4 million light-years from the Milky Way, but different methods yield distances between 15 and 35 million light-years. Messier 51 is one of the best known galaxies in the sky. The galaxy and its companion, NGC 5195, are easily observed by amateur astronomers, and the two galaxies may even be seen with binoculars.--Wiki

    Being perhaps my favorite galaxy, outside of our own Milky Way of course, I cant resist shooting this galaxy every year. After my primary target had gotten too low in the west, I decided to see what I could get on this galaxy with my 4" apo. This is one of those targets I just never get tired of seeing.

    Comments

    Revisions

      Messier 51, Whirlpool Galaxy, 



    
        

            rflinn68
      Original
      Messier 51, Whirlpool Galaxy, 



    
        

            rflinn68
      B
    • Final
      Messier 51, Whirlpool Galaxy, 



    
        

            rflinn68
      C

    Sky plot

    Sky plot

    Histogram

    Messier 51, Whirlpool Galaxy, 



    
        

            rflinn68