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Contains:  M 27, Dumbbell nebula, NGC 6853

Image of the day 09/18/2016

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    M27 bicolor (H-alpha/OIII), 


    M27 bicolor (H-alpha/OIII)

    M27 bicolor (H-alpha/OIII)

    Technical card

    Resolution: 2506x2119

    Dates:Aug. 26, 2016Aug. 27, 2016Sept. 5, 2016Sept. 10, 2016

    Orion Extra Narrowband Filter Ha 1.25": 24x360" bin 1x1
    Orion Extra Narrowband Filter Ha 1.25": 11x540" bin 1x1
    Orion Extra Narrowband Filter Ha 1.25": 1x360" -18C bin 1x1
    Orion Extra Narrowband Filter OIII 1.25": 14x360" -18C bin 1x1
    Orion Extra Narrowband Filter OIII 1.25": 10x720" -18C bin 1x1

    Integration: 7.5 hours

    Avg. Moon age: 15.08 days

    Avg. Moon phase: 33.82%

    Bortle Dark-Sky Scale: 6.00 job: 1236414

    RA center: 299.901 degrees

    DEC center: 22.721 degrees

    Pixel scale: 0.479 arcsec/pixel

    Orientation: -166.568 degrees

    Field radius: 0.218 degrees

    Locations: Back Yard, Lubbock, TX, United States


    This image of the Dumbbell Nebula, M27, is a bicolor narrowband image comprised of hydrogen alpha and OIII subs. It was acquired over several very windy nights in which I was confined to my light-polluted back yard. Filters were Orion Extra Narrowband 7 nm filters. A Baader 36 mm luminance filter was placed in front of the OIII filter to block near-infrared leakage.

    H-alpha 4 hours and 9 minutes

    OIII 3 hours and 12 minutes

    Total integration 7 hours and 21 minutes



    License: None (All rights reserved)

    Sky plot

    Sky plot


    M27 bicolor (H-alpha/OIII), 



    In these public groups

    Cloudy Nights
    Narrowband imaging