Contains:  NGC 884, Double cluster, NGC 869, The star 7Per

Image of the day 12/11/2017

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    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 




    

        Mike Oates
    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869)

    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869)

    Technical card

    Resolution: 3373x2762

    Dates: Nov. 18, 2017

    Frames:
    Blue: 18x60" bin 1x1
    Green: 18x60" bin 1x1
    Ha 3nm: 40x1800" bin 1x1
    Red: 15x60" bin 1x1

    Integration: 20.9 hours

    Avg. Moon age: 0.01 days

    Avg. Moon phase: 0.00%

    Mean SQM: 18.50

    Astrometry.net job: 1854031

    RA center: 35.099 degrees

    DEC center: 57.139 degrees

    Pixel scale: 1.435 arcsec/pixel

    Orientation: 0.123 degrees

    Field radius: 0.869 degrees

    Locations: The Hills Observatory, Manchester, United Kingdom

    Data source: Unknown

    Description

    Initially a very quick image, all 60sec subs taken on one night (26 Aug 2017). Processed in PixInsight using the new PhotometricColorCalibration (PCC) process. Then finished off in PhotoShop.

    This is another in my series of star clusters showing Ha regions not normally seen. This is a basic RGB image taken in about an hour. Then another 20 hours of Ha data taken as 40 x 1800s subs bin 1x1. The Ha is then added as a tonemap, (i.e. stars removed)

    This Ha nebula is extremely faint requiring lots of integration.

    The other cluster images with Ha I have published here on Astrobin are NGC 7789 & M39.

    Comments

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    MikeOates
    Mike Oates
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      Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 




    

        Mike Oates
      Original
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      Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 




    

        Mike Oates
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    Double Cluster in Perseus (with Ha) (NGC 884 & NGC 869), 




    

        Mike Oates