Sh1-089 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg)

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Sh1-089

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Sh1-089

This object is a dim planetary nebula, also known as PN G089.8-00.6, located 6400 light years away in the constellation of Cygnus at a declination of +48 degrees. The PN spans 3 arc-minutes in our apparent view, which corresponds to a actual length of 6 light years. This object was included on Sharpless’ first (1953) catalog of emission nebula, but by the time of the second catalog (1959) this object was correctly identified as a planetary nebula so it was left out.

This object is a bi-polar nebula with mostly Ha signal except in the torus area, where there is almost an equal amount of OIII signal. The upper lobe appears fairly intact and has not yet broken through, but the ISM appears to be impacting the bottom lobe where some breakthrough is seen. Like M76, we are viewing this bi-polar nebula from a side-on view so that the bright equatorial torus is almost edge on to our view.

ZWO ASI183/QHY183
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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.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
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	3118297
PixInsight job	ULDMN2X96VSQL5HMJUSDIBKKFAVQ856X
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	21h14m07s.447
RA (top/left)	21h15m06s.192
RA (top/right)	21h14m06s.554
RA (bottom/right)	21h13m08s.592
RA (bottom/left)	21h14m08s.301

Dec (center)	+47°46′17″.83
Dec (top/left)	+47°43′40″.13
Dec (top/right)	+47°56′30″.77
Dec (bottom/right)	+47°48′53″.48
Dec (bottom/left)	+47°36′04″.78

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Sh1-089

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