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Contains:  IC 4605, NGC 6144, rho Oph nebula, IC 4604, IC 4603, M 4, NGC 6121, M 80, NGC 6093, The star 22Sco, The star Antares (αSco), The star ρOph, The star Al Niyat (σSco), The star οSco
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Rho Complex, 


            Jirair Afarian
Rho Complex

Rho Complex

Technical card

Resolution: 4904x3236

Dates:June 7, 2019

Frames: 118x90" (gain: 90.00) -18C bin 1x1

Integration: 3.0 hours

Darks: ~30

Flats: ~40

Avg. Moon age: 4.41 days

Avg. Moon phase: 20.41%

Bortle Dark-Sky Scale: 6.00

Mean FWHM: 5.80

Temperature: 13.00 job: 2734180

RA center: 246.102 degrees

DEC center: -25.009 degrees

Pixel scale: 3.984 arcsec/pixel

Orientation: 307.238 degrees

Field radius: 3.252 degrees

Locations: Home Observatory, Richmond Hill, Ontario, Canada

Data source: Backyard


First attempt at the Rho Complex, very heavy light polluted part of the sky (facing south towards Toronto) and very low in the sky (max altitude I got was just under 20 degrees and the majority was taken just above 15 degrees). So not ideal conditions. Either way I am happy to say I captured something! Almost 3hrs worth, 90s subs with the RedCat 51 and ASI071 color camera.



Jirair Afarian
License: None (All rights reserved)

Sky plot

Sky plot


Rho Complex, 


            Jirair Afarian