The Rho Ophiuchi and Antares Nebula Complex

Posted: Aug 4th, 2021

Technical Info

Telescope/Lens: Samyang 2.0/135mm ED UMC (2.0)

Camera: Nikon D5100а mod

Mount: HEQ5 Pro

Guide Scope: автогид на SW "искателе"

Guide Camera: Philips SPC900NC

Software: DSS (полная калибровка), Adobe Lr / Ps

Accessories: SVbony UV/IR cut

Exposure:

160 x 60" ISO/Gain: 250

130 x 15" ISO/Gain: 250

Blue zoneLight Pollution:

Nijnee Plato Chatyr-Dag Krym, Russia

Jun 11th, 2021

THE RHO OPHIUCHI AND ANTARES NEBULA COMPLEX

Telescope/Lens: Samyang 2.0/135mm ED UMC (2.0)
Camera: Nikon D5100а mod
Mount: HEQ5 Pro
Guide Scope: автогид на SW "искателе"
Guide Camera: Philips SPC900NC
Software: DSS (полная калибровка), Adobe Lr / Ps
Accessories: SVbony UV/IR cut

Nijnee Plato Chatyr-Dag Krym, Russia
Light Pollution: Blue zone

Exposure:
160 x 60" ISO/Gain: 250 
130 x 15" ISO/Gain: 250

One of the most beautiful regions in the starry sky, a complex of molecular, cold (dark) gas-dust clouds and reflection, emission nebulae surrounding the stars Rho (multiple) Ophiuchi, Al Niyat, and Antares of Scorpius. Between them, slightly lower and to the right, the globular star cluster M4 is visible, located much farther from us than the complex itself, against the backdrop of numerous faint stars in the Milky Way's spiral arm. Captured over three nights: June 10, 11, 12, 2021. Crimea, lower plateau of Mount Chatyr-Dag, altitude 1020 m above sea level. Total exposure: 3 hours 12 minutes (160×60s + 130×15s), ISO 250. Lens: Samyang 2.0/135mm ED UMC (at f/2.0), camera: Nikon D5100a mod, mount: HEQ5 Pro, autoguiding with a SW "finder," inter-frame shifts. Processing: DSS (full calibration), Adobe Lr / Ps, resized 50%.

Original size: https://deepskyhosting.com/pCEhp6H
Author: Dmitriy Bezgubov

3 h 13 m

2313

One of the most beautiful regions in the starry sky, a complex of molecular, cold (dark) gas-dust clouds and reflection, emission nebulae surrounding the stars Rho (multiple) Ophiuchi, Al Niyat, and Antares of Scorpius. Between them, slightly lower and to the right, the globular star cluster M4 is visible, located much farther from us than the complex itself, against the backdrop of numerous faint stars in the Milky Way's spiral arm.

Captured over three nights: June 10, 11, 12, 2021.
Crimea, lower plateau of Mount Chatyr-Dag, altitude 1020 m above sea level.
Total exposure: 3 hours 12 minutes (160×60s + 130×15s), ISO 250.
Lens: Samyang 2.0/135mm ED UMC (at f/2.0), camera: Nikon D5100a mod, mount: HEQ5 Pro, autoguiding with a SW "finder," inter-frame shifts.
Processing: DSS (full calibration), Adobe Lr / Ps, resized 50%.

Resolution: 2461x1603 px

Scale: 3773 KB