The Propeller Nebula (James E.)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg)

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The Propeller Nebula

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The Propeller Nebula

The Propeller Nebula (Simeis 57 or DWB 111/119) is an emission nebula within the giant molecular cloud of Cygnus X located about 4500-6000 (estimated) light years from Earth in Cygnus. It was first catalogued in the 1950s by astronomers working at Simeiz Observatory in Ukraine as the 57th object in their catalogue containing 306 HII regions. In 1969, astronomers H.R. Dickel, H. Wendker and J.H. Bieritz published a paper labeling the central part of the Propeller Nebula separately as DWB 111 (southern arm) and DWB 119 (northern arm) with the bright patch surrounding it as DWB 118. The DWB catalogue contains 109 emission nebulae related to the Cygnus X star forming region. (credit: Gabor Toth Astrophotography and cosmicneighbors.net)

At the lower right is an OIII-rich blue “nebula” PN PM 1-320 which SIMBAD describes as a possible planetary nebula.

Taken over several nights: July 14, 16, 19, 21, 23, 26-27, 2021.

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	Distinct awarded users	Total awarded images
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The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
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Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	4837966
PixInsight job	6996CN3QBQ09N547GQXQ83U822ZQZWYS
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	20h15m58s.40
RA (top/left)	20h22m03s.58
RA (top/right)	20h23m00s.85
RA (bottom/right)	20h09m42s.49
RA (bottom/left)	20h09m05s.19

Dec (center)	+43°40′50″.9
Dec (top/left)	+42°47′36″.5
Dec (top/right)	+44°19′21″.4
Dec (bottom/right)	+44°32′48″.2
Dec (bottom/left)	+43°00′47″.2

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The Propeller Nebula

The Propeller Nebula

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