SH2-200 (Dan Kusz)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: LBN 674 · PK138+04.1 · Sh2-200

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SH2-200

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SH2-200

Sh2-200, the Bear Claw nebula. This nebula was first discovered by the astronomer Stewart Sharpless in 1959 who included it in his catalogue of HII regions under the name of Sh2-200.
In 1983, Sh2-200 was included in the HDW catalogue of possible planetary nebulae by the astronomers Herbert Hartl, Johann Dengel and Ronald Weinberger. However it wasn't confirmed to be a true genuine planetary nebula until 2017 when spectra was taken as part of professional observations. In 1987, further narrowband observations by Herbert Hartl and Ronald Weinberger detected a large faint outer halo extending further than the central shell.

I had an unusual stretch of clear skies in late Septemebr and early October so I decided to image a target I have had in my list for a few years. I had pretty decent seeing on the nights to put this big project together. I framed it slightly left in the frame to show to collection of brighter blue stars to the right of the nebula. The Ha data was tough to bring out being extremely faint, not showing anything in individual subs. With enough Ha data I was able to show the entire surrounding Ha circling the OIII central area.

Overall, I was hesitant on this target knowing the time needed to image and being able to do it justice.

I hope you enjoy, thanks for looking!

CS
Dan.

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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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Status	Advanced success
Started	...
Astrometry.net job	6459431
PixInsight job	Z93H07A49B94N3N8VHLSY9ZWDKLN80EN
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h10m51s.772
RA (top/left)	03h14m12s.238
RA (top/right)	03h14m08s.250
RA (bottom/right)	03h07m23s.909
RA (bottom/left)	03h07m42s.223

Dec (center)	+62°57′32″.51
Dec (top/left)	+62°26′27″.88
Dec (top/right)	+63°29′10″.93
Dec (bottom/right)	+63°28′14″.100
Dec (bottom/left)	+62°25′36″.24

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SH2-200

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