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Hemisphere:  Northern  ·  Contains:  M102  ·  NGC 5862  ·  NGC 5866  ·  NGC 5867  ·  NGC5862  ·  Spindle galaxy

Image of the day 05/03/2020

Getting plate-solving status, please wait...
    NGC 5866 (M102 ?), 


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    NGC 5866 (M102 ?)

    Imaging telescopes or lenses: Planewave CDK24

    Imaging cameras: FLI Proline 16803

    Mounts: Planewave L600

    Guiding cameras: Starlight Xpress Ultrastar

    Focal reducers: None

    Software: Photoshop CS3  ·  PixInsight 1.8  ·  PHD Guiding 2  ·  CCDWare CCD Inspector  ·  Planewave PWI4  ·  Planewave PWI3  ·  Maxim DL6  ·  Sequence Generator Pro

    Filters: Astrodon 50mm B  ·  Astrodon 50mm R  ·  Astrodon 50mm L  ·  Astrodon 50 mm G

    Accessory: FLI CFW-5-7  ·  Astrodon Monster MOAG  ·  Hedrick Focuser  ·  Planewave Delta-T  ·  Planewave EFA

    Dates:April 15, 2020April 16, 2020April 22, 2020April 24, 2020

    Astrodon 50 mm G: 10x900" -30C bin 1x1
    Astrodon 50mm B: 10x900" -30C bin 1x1
    Astrodon 50mm L: 23x900" -30C bin 1x1
    Astrodon 50mm R: 10x900" -30C bin 1x1

    Integration: 13.2 hours

    Darks: ~20

    Flats: ~80

    Flat darks: ~80

    Bias: ~20

    Avg. Moon age: 19.12 days

    Avg. Moon phase: 20.41%

    Mean SQM: 21.30

    Mean FWHM: 1.86 job: 3457645

    RA center: 15h 6' 5"

    DEC center: +55° 41' 52"

    Pixel scale: 0.468 arcsec/pixel

    Orientation: -178.144 degrees

    Field radius: 0.226 degrees

    Resolution: 2535x2386

    Locations: KG Observatory, Julian, CA, United States

    Data source: Backyard


    Some astronomical historians argue that M102 is a duplicate observation of M101. Others say the evidence points to NGC5866.

    Maybe this is why NGC5866 is rarely imaged? This HST image from 2006 caught my attention...

    Hubble image of NGC5866

    And from Adam Block...

    Adam Block image of NGC5866

    A FWHM of 1.86" on the stacked luminance helped me extract some of the detail in the core.

    "Classified as a lenticular galaxy, NGC 5866 has numerous and complex dust lanes appearing dark and red, while many of the bright stars in the disk give it a more blue underlying hue. The blue disk of young stars can be seen extending past the dust in the extremely thin galactic plane, while the bulge in the disk center appears tinged more orange from the older and redder stars that likely exist there. Although similar in mass to our Milky Way Galaxy, light takes about 60,000 years to cross NGC 5866, about 30 percent less than light takes to cross our own Galaxy. In general, many disk galaxies are very thin because the gas that formed them collided with itself as it rotated about the gravitational center. Galaxy NGC 5866 lies about 44 million light years distant toward the constellation of the Dragon (Draco)"



    License: None (All rights reserved)


      NGC 5866 (M102 ?), 


    • Final
      NGC 5866 (M102 ?), 




    Description: Desaturated star color a bit.

    Sky plot

    Sky plot


    NGC 5866 (M102 ?),