DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB) (Torben van Hees)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD192121 · HD192202 · HD192242 · HD192279 · HD192340 · HD192402 · HD192403 · HD192496 · HD192535 · HD192555 · HD192582 · HD192583 · HD192601 · HD192602 · HD192731 · HD192867 · HD192868 · HD192911 · HD193217 · HD193551 · HD193610 · HD193632 · HD193793 · LBN 278 · LBN 298 · LBN 301 · LBN 303 · LDN 895

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DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB)

Link: http://astro.van-hees.name

Powered byPixInsight

DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB)

Link: http://astro.van-hees.name

Simeis 57 is part of the Cygnus X Complex, a huge star formation area associated with one of the largest known molecular clouds. It extends over 1000 light years, its mass is about 3 million times that of the sun, and it contains over 800 HII regions.

Another multi-season project, the problems with my previous setups had prevented my from acquiring enough imaging time to get good signal. I decided to start a new effort with the Epsilon. Sure enough, it's been now a week without clear skies since I got that single night. So I just added all data I had gathered before. Not surprisingly, the RASA data added a lot of depth. More surprisingly, the RC data also did and revealed some of the smaller structures within the propeller. Stars are RGB, all coming from the Epsilon as it had the widest FOV. While the O3 signal was extremely weak in this area, it did add a few nice highlights. S2 was also quite weak. To my astonishment, the Epsilon picked up a significant amount of nebulosity in the RGB image. I believe it shows how much time was "wasted" by trying to capturing enough O3 and S2.

Final
Original
C

C

Title: RGB (30 min)

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Cloudy Nights
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Takahashi Epsilons
AstroBin Platform open discussions community forum
Imaged with Voyager
Celestron RASA

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Status	Advanced success
Started	...
Astrometry.net job	6033089
PixInsight job	JDS0LGRAIF6JXVIE3HHBPIAUUS2N006P
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h16m05s.71
RA (top/left)	20h20m53s.59
RA (top/right)	20h20m22s.26
RA (bottom/right)	20h11m07s.14
RA (bottom/left)	20h11m59s.32

Dec (center)	+43°40′41″.3
Dec (top/left)	+42°31′05″.5
Dec (top/right)	+44°54′54″.9
Dec (bottom/right)	+44°49′39″.9
Dec (bottom/left)	+42°25′53″.9

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DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB)

DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB)

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DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB)

DWB 111/119 - Simeis 57 - Propeller Nebula (SHO and RGB)

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