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Contains:  IC 4605, NGC 6144, rho Oph nebula, IC 4604, IC 4603, M 4, NGC 6121, The star 22Sco, The star Antares (αSco), The star ρOph, The star Al Niyat (σSco), The star οSco
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Rho Ophiuchi Nebula @ iTelescope, 


            Miles Zhou
Rho Ophiuchi Nebula @ iTelescope

Rho Ophiuchi Nebula @ iTelescope

Technical card

Resolution: 4002x4068

Dates:July 26, 2017

Astrodon RGB: 27x60" -25C bin 2x2
Astrodon luminance filter: 18x120" -35C bin 1x1

Integration: 1.1 hours

Avg. Moon age: 3.37 days

Avg. Moon phase: 12.34% job: 1669271

RA center: 16h 26' 51"

DEC center: -25° 22' 1"

Pixel scale: 3.504 arcsec/pixel

Orientation: -179.244 degrees

Field radius: 2.777

Locations: iTelescope - SSO, Coonabarabran, NSW, Australia


IC 4604 is a large diffuse nebula of 5th magnitude located in the southwestern corner of the constellation Ophiuchus, surrounding the bright triple star Rho Ophiuchi. Several regions of bright and dark nebulosity surround this area, which takes its name from ρ Oph.



Miles Zhou
License: None (All rights reserved)

Sky plot

Sky plot


Rho Ophiuchi Nebula @ iTelescope, 


            Miles Zhou