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Contains:  M 1, Crab nebula, NGC 1952

Image of the day 04/09/2018

Getting plate-solving status, please wait...
    Crab Nebula (Bicolor), 


            John Renaud
    Crab Nebula (Bicolor)

    Crab Nebula (Bicolor)

    Technical card

    Resolution: 2750x2200

    Dates:Jan. 12, 2018Jan. 13, 2018Jan. 14, 2018Jan. 17, 2018Jan. 22, 2018Jan. 24, 2018

    Astrodon 3nm OIII: 43x1200" -10C bin 1x1
    Astrodon 5nm Ha: 13x1200" -10C bin 1x1

    Integration: 18.7 hours

    Darks: ~20

    Flats: ~50

    Bias: ~100

    Avg. Moon age: 15.21 days

    Avg. Moon phase: 17.71% job: 1997699

    RA center: 83.634 degrees

    DEC center: 22.014 degrees

    Pixel scale: 0.436 arcsec/pixel

    Orientation: 271.195 degrees

    Field radius: 0.213 degrees

    Locations: Backyard, Magnolia, TX, United States


    Started late on this one and just plain ran out of time on the Ha (and what little bit of Ha there is was shot under poor seeing). The OIII, on the other hand, was shot under unusually good conditions and is some of the cleanest OIII data that I've collected.

    This is another attempt at "zoom drizzling" and the result certainly leaves something to be desired in terms of fine detail at full res... I definitely plan to revisit this one next year and finish Ha collection/reprocess.



    John Renaud
    License: None (All rights reserved)


      Crab Nebula (Bicolor), 


            John Renaud
      Crab Nebula (Bicolor), 


            John Renaud
    • Final
      Crab Nebula (Bicolor), 


            John Renaud

    Sky plot

    Sky plot


    Crab Nebula (Bicolor), 


            John Renaud