Image of the day 05/05/2018

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    Sh2-129 and Ou4, 


            Wei-Hao Wang
    Sh2-129 and Ou4

    Sh2-129 and Ou4

    Technical card

    Imaging telescope or lens:Takahashi Epsilon 180ED

    Imaging camera:Nikon D800 Mod

    Mount:iOptron CEM60-EC

    Guiding telescope or lens:SharpStar 50 ED

    Guiding camera:Fishcamp Starfish

    Software:PixInsightAuriga Imaging RegiStarPhotoshop CC

    Resolution: 4600x3600

    Dates:Oct. 8, 2015Oct. 9, 2015Oct. 13, 2015Oct. 15, 2015Nov. 5, 2016

    120x180" ISO800
    Baader Planetarium OIII 10nm: 51x360" ISO1600
    Baader Planetarium OIII 10nm: 22x480" ISO800

    Integration: 14.0 hours

    Avg. Moon age: 11.96 days

    Avg. Moon phase: 12.24%

    Bortle Dark-Sky Scale: 2.00 job: 2033508

    RA center: 317.577 degrees

    DEC center: 60.287 degrees

    Pixel scale: 3.878 arcsec/pixel

    Orientation: 359.861 degrees

    Field radius: 3.145 degrees

    Locations: Mt. Shiao-Shuei (Taiwan), Taichung, Taiwan; Maunakea Visitor Information Station, Hilo, Hawaii, United States

    Data source: Traveller


    This is a two frame mosaic, taken mostly on Maunakea.

    My earlier attempt on this subject can be found here:
    I didn't like it. So I took it again using a different camera. The new version is indeed better, thanks to the higher sensitivity of the camera, and probably better processing too.



    Wei-Hao Wang

    Sky plot

    Sky plot


    Sh2-129 and Ou4, 


            Wei-Hao Wang