California

Posted: Feb 19th, 2020

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NGC

Technical Info

Telescope/Lens: Samyang 85mm F1.4 AS IF UMC Aspherical

Camera: ZWO ASI178MM

Mount: Celestron Advanced VX

Guide Scope: 32MMF4

Guide Camera: ZWO ASI120MM Mini

Software: Pixinsight, Fitstacker, Photoshop

Exposure:

84 x 300" ISO/Gain: 200 - Svbony Ha 7nm

36 x 300" ISO/Gain: 200 - Baader OIII 8,5nm

Orange zoneLight Pollution:

Krasnoyarsk, Russia

10 h 0 m

2306

f/3.5

R(Ha) G(O-III) B(O-III*0.85+Ha*0.15)

Hydrogen in the white zone, oxygen at the border of blue and green.

Resolution: 3000x2000 px

Scale: 32120 KB

Pavel Zhukov

Current photo Updated

California

19 Feb, 2020

10 h 0 m

f/3.5 R(Ha) G(O-III) B(O-III*0.85+Ha*0.15) Водород в белой зоне, кислород на границе синей и зеленой

California

14 Feb, 2020

7 h 0 m

f/3.5

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Comments

Malex

Excellent result.

19 Feb, 2020 Reply

Pavel Zhukov Replied to Malex

Thank you!

20 Feb, 2020 Reply

Max_astro

Very beautiful, but also very challenging!

20 Feb, 2020 Reply

Pavel Zhukov Replied to Max_astro

Thank you!

20 Feb, 2020 Reply

Alex

Yes, it's quite good, but the stars seem stretched vertically, or is it just me?

20 Feb, 2020 Reply

Pavel Zhukov Replied to Alex

Thank you! Yes, that can happen with stars. The stars in the hydrogen channel are slightly larger than those in the oxygen channel across almost the entire field, and they protrude especially from the top—likely due to poorer guiding in one of the hydrogen sessions.

20 Feb, 2020 Reply