Hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  IC 4603  ·  IC 4604  ·  IC 4605  ·  M 4  ·  M 80  ·  NGC 6093  ·  NGC 6121  ·  NGC 6144  ·  Part of the constellation Scorpius (Sco)  ·  The star 22Sco  ·  The star Al Niyat (σSco)  ·  The star Antares (αSco)  ·  The star οSco  ·  The star ρOph  ·  The star τSco  ·  rho Oph nebula
Rho Ophiuchi Cloud Complex HDR, 


            Ray Morris
Rho Ophiuchi Cloud Complex HDR
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Rho Ophiuchi Cloud Complex HDR

Technical card

Imaging telescopes or lenses: Canon 75-300mm Canon EF 75-300mm

Imaging cameras: Canon DSLR EOS 60da

Mounts: CGEM

Guiding telescopes or lenses: Orion 80mm Short Tube

Guiding cameras: Celestron NexGuide

Software: DeepSkyStacker  ·  Adobe Photoshop CS3

Dates:March 3, 2014

Frames: 20x120" ISO2000

Integration: 0.7 hours

Darks: ~10

Avg. Moon age: 2.39 days

Avg. Moon phase: 6.34%

Bortle Dark-Sky Scale: 1.00

Basic astrometry details

Astrometry.net job: 2916310

RA center: 16h 26' 52"

DEC center: -25° 14' 9"

Pixel scale: 9.441 arcsec/pixel

Orientation: 155.569 degrees

Field radius: 4.232 degrees

Resolution: 2680x1798

Locations: Douglas Springs Trailhead, Tucson, AZ, Tucson, Arizona, United States

Data source: Backyard


Another object converted to HDR using freeware Luminance HDR. See tech card for exposure details.


Sky plot

Sky plot


Rho Ophiuchi Cloud Complex HDR, 


            Ray Morris