Hemisphere:  Southern  ·  Constellation: Ophiuchus (Oph)  ·  Contains:  IC 4603

Image of the day 01/27/2019

    IC4603 Dark clouds in Rho Ophiuchi, 


            Péter Feltóti
    IC4603 Dark clouds in Rho Ophiuchi
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    IC4603 Dark clouds in Rho Ophiuchi

    Technical card

    Imaging telescopes or lenses: SkyWatcher 200/800 carbon Newton astrograph

    Imaging cameras: Canon EOS 600D(a)

    Mounts: SkyWatcher NEQ6 PRO belt modified

    Guiding telescopes or lenses: SkyWatcher 53 mm mini (for guiding)

    Guiding cameras: Mgen guide camera

    Focal reducers: Skywatcher F4 coma corrector

    Software: Auriga Imaging RegiStar 1.0.9  ·  Photoshop CC  ·  Nebulosity 3.3.3

    Accessory: Lacerta Mgen autoguider

    Dates:May 13, 2018

    Frames: 89x300" ISO800

    Integration: 7.4 hours

    Avg. Moon age: 27.37 days

    Avg. Moon phase: 5.21%

    Bortle Dark-Sky Scale: 1.00

    Temperature: 5.00

    Basic astrometry details

    Astrometry.net job: 2483841

    RA center: 16h 26' 22"

    DEC center: -24° 23' 24"

    Pixel scale: 2.335 arcsec/pixel

    Orientation: 12.845 degrees

    Field radius: 0.918 degrees

    Resolution: 2400x1500

    Locations: Farm Isabis, Isabis Farm, Windhoek, Namibia

    Data source: Traveller


    This region is in the center of well known nebula complex Rho Ophiuchi yet it is quite mysterious due to it's dark dust clouds and faint occulted stars.


    Sky plot

    Sky plot


    IC4603 Dark clouds in Rho Ophiuchi, 


            Péter Feltóti