Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
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 ρOph, The star Al Niyat (σSco), The star οSco
Getting plate-solving status, please wait...
Rho Ophiuchus Complex, 


            Geoff Scott
Rho Ophiuchus Complex

Technical card

Imaging telescope or lens:Pentax Takumar 200mm f/4 prime lens

Imaging camera:Canon 70D

Mount:Star Adventurer

Software:Photoshop CC

Resolution: 4882x3394

Dates:Feb. 9, 2019

Frames: 15x60" ISO1600

Integration: 0.2 hours

Darks: ~51

Flats: ~17

Bias: ~17

Avg. Moon age: 4.14 days

Avg. Moon phase: 18.20%

Temperature: 22.00 job: 2517624

RA center: 246.427 degrees

DEC center: -24.447 degrees

Pixel scale: 4.217 arcsec/pixel

Orientation: 193.762 degrees

Field radius: 3.483 degrees

Locations: Perth Observatory, Bickley, Western Australia, Australia

Data source: Traveller


First use of a 1970's vintage 200mm SLR lens on the huge Rho Ophiuchus region. Pleased with the result from 60 Sec. subs from a semi-dark site on an unguided but polar aligned star tracker mount,



Geoff Scott
License: None (All rights reserved)

Sky plot

Sky plot


Rho Ophiuchus Complex, 


            Geoff Scott