M20 Trifid, M8 Lagoon, NGC 6559 Chinese Dragon and everything nearby

Posted: Oct 5th, 2024

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NGC

Technical Info

Telescope/Lens: Samyang 135 2.0

Camera: ZWO ASI 2600MC DUO

Mount: Самодельная гармошка 2х11

Guide Scope: встроенный датчик

Guide Camera: SC2210

Software: SiriL, StarNet++, GraXpert

Accessories: ZWO ASIAir, ZWO EAF

Exposure:

85 x 120" ISO/Gain: 0 - Gain -25, фильтр Optolong L-eNhanced

Orange zoneLight Pollution:

Hosta Sochi, Russia

Sep 14th, 2024

M20 TRIFID, M8 LAGOON, NGC 6559 CHINESE DRAGON AND EVERYTHING NEARBY

Telescope/Lens: Samyang 135 2.0
Camera: ZWO ASI 2600MC DUO
Mount: Самодельная гармошка 2х11
Guide Scope: встроенный датчик
Guide Camera: SC2210
Software:  SiriL, StarNet++, GraXpert
Accessories: ZWO ASIAir, ZWO EAF

Hosta Sochi, Russia
Light Pollution: Orange zone

Exposure:
85 x 120" ISO/Gain: 0 - Gain -25, фильтр Optolong L-eNhanced

Accumulation over all clear nights of the first two weeks of September.
 The accumulation turned out so-so. Out of 500+ 2-minute frames (gain -25 at 0 degrees), only 85 were usable. Efficiency like that of the notorious steam locomotive...
 These objects were hanging low above the horizon, conditions were so-so. Stray light, gradients, planes in crowds.
 1/3 of the frame around the edges had to be cropped.
 The question arises - maybe it would have been better to shoot all this with a 200mm focal length right away?
 At 135mm it's some kind of neither-fish-nor-fowl: no longer a landscape, but not yet deep sky.

Original size: https://deepskyhosting.com/fGiyjAB
Author: UrmasX

2 h 50 m

950

Accumulation over all clear nights of the first two weeks of September.
The accumulation turned out so-so. Out of 500+ 2-minute frames (gain -25 at 0 degrees), only 85 were usable. Efficiency like that of the notorious steam locomotive...
These objects were hanging low above the horizon, conditions were so-so. Stray light, gradients, planes in crowds.
1/3 of the frame around the edges had to be cropped.
The question arises - maybe it would have been better to shoot all this with a 200mm focal length right away?
At 135mm it's some kind of neither-fish-nor-fowl: no longer a landscape, but not yet deep sky.

Resolution: 4263x2947 px

Scale: 6774 KB