IC 1747 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1747 · PK130+01.1

IC 1747

This object is a planetary nebula located 10,000 light years away in the constellation of Cassiopeia at a declination of +63 degrees. This PN spans 15 arc-seconds in our apparent view, which corresponds to a diameter of 0.75 light years.

There is something striking about PN which are almost as small in size to us as stars, yet retain such color and structure that they are clearly not stars.

I really like the unusual structure of this object. The central star is clearly visible, surrounded by a bright ring which is “broken” at several places. This PN is further away than most I have seen, which is too bad. It would be nice to see more detail on this one.

Some have nicknamed this object the Holepunch Nebula, which I guess makes sense. But it seems such a shame that a beautiful object like this needs such a mundane nickname.

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All of My PN Images (264)

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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	4121476
PixInsight job	W88SQRCCBW4923GES65EZD3Z4PEI2453
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	01h57m35s.867
RA (top/left)	01h58m43s.783
RA (top/right)	01h56m24s.948
RA (bottom/right)	01h56m28s.401
RA (bottom/left)	01h58m46s.390

Dec (center)	+63°19′19″.29
Dec (top/left)	+63°24′59″.80
Dec (top/right)	+63°24′29″.85
Dec (bottom/right)	+63°13′37″.25
Dec (bottom/left)	+63°14′06″.51

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IC 1747

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