Туманность Розетта в созвездии Единорог, 21 декабря 2019 года

Rosetta Nebula in the Unicorn. December 21, 2019

-Samyang 135mm f/2.0 ED UMC Canon EF
-filter Optolong L-eNhance 1.25″
-camera ASI ZWO 183MC
-finderscope-guider 50 mm + camera QHY5III178m
-mount Sky-Watcher AZ-GTi.
35 frames per 120 seconds.
Processing: PIPP (calibration), (stacking). Scale 25%.
Scale 50% — link
Location: Russia, Anapa, backyard.

This is the first more or less adequate result with the Optolong L-eNhance 1.25 “filter. The filter cuts off most of the city light pollution, but at the same time passes the H-alpha, OIII and H-beta lines. Ghosting appears around bright stars, but personally they don’t bother me, I will continue testing the filter.

Туманность NGC 281 Пакман, 2 декабря 2019 года

NGC 281 Pac-Man nebula. December 2, 2019

-Samyang 135mm f/2.0 ED UMC Canon EF lens
Optolong L-eNhance 1.25″ filter
ASI ZWO 183MC camera
-finder-guider 50 mm + QHY5III178m camera
-Sky-Watcher AZ-GTi mount.
30 frames per 120 s.
Calibration with PIPP, stacking with Fitswork.
Location: Russia, Anapa, backyard.

It is interesting to compare the result with another picture taken about a year ago with a monochrome camera QHY5III178m and a 12 nm H-alpha filter:
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Hydrogen nebula around Sadr. August 6, 2019.

Hydrogen nebula around Sadr. August 6, 2019.

-Samyang 135\2.0 ED lens
-Optolong L-Pro clip filter
-Canon 550Da camera
-guider Deepsky 50\180 + camera QHY5III178m with IR-cut filter
-Sky-Watcher Adventurer mount.
43 frames per 120 seconds, ISO 800.
Location: Russia, village Supsehk, Kuban.
Processing: DeepSkyStacker (calibration), Fitswork (stacking), SIRIL (postprocessing). Scale 25%.
Full size.