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Contains:  IC 4605, rho Oph nebula, IC 4604, M 4, NGC 6121, IC 4592, The star γLib, The star ρSco, The star τLib, The star υLib, The star τSco, The star Al Niyat (σSco), The star πSco, The star Graffias (β1Sco), The star Dschubba (δSco), The star Antares (αSco), Part of the constellation Scorpius (Sco), Part of the constellation Libra (Lib)

Image of the day 09/14/2015

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    Sco-Oph-Lib region, 


            Wei-Hao Wang

    Sco-Oph-Lib region

    Technical card

    Imaging telescope or lens:Sigma 180mm/F2.8 APO

    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: 8800x6500

    Dates:April 17, 2015Aug. 9, 2015

    Frames: 476x180" ISO800

    Integration: 23.8 hours

    Avg. Moon age: 26.34 days

    Avg. Moon phase: 13.63% job: 1096086

    Locations: Maunakea Visitor Information Station, Hilo, Hawaii, United States

    Data source: Traveller


    This is a mosaic of 28 panels taken with a 180mm lens, over 10 nights between April and August 2015. The lens aperture is wide-open. There are large overlaps between the 28 mosaic panels, so the final FOV of this image is probably only slightly larger than a 2x2 mosaic making with a 180mm lens. The total exposure of the 28 panels is about 24 hr.

    For fun, I also uploaded a version with no stars (rev. B), so you can better see the nebulas.

    The original image has more than 200 mega pixels. The version uploaded here is a 50% reduction. A slightly larger version can be found here:

    Rev.G is a 3840x2160 crop, for you to use as a wallpaper on your 4K monitor.




    Wei-Hao Wang
    License: None (All rights reserved)


      Sco-Oph-Lib region, 


            Wei-Hao Wang
      Sco-Oph-Lib region, 


            Wei-Hao Wang
      Sco-Oph-Lib region, 


            Wei-Hao Wang
    • Final
      Sco-Oph-Lib region, 


            Wei-Hao Wang
      Sco-Oph-Lib region, 


            Wei-Hao Wang


    Sco-Oph-Lib region, 


            Wei-Hao Wang