Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3 (DoubleStarPhotography)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: LBN 674 · PGC 138608 · PGC 168324 · PGC 168326 · PGC 2797337 · PGC 2797345 · PGC 2797346 · PGC 2797350 · PGC 2797361 · PGC 2797376 · PK138+04.1 · Sh2-200

Powered byPixInsight

Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3

Powered byPixInsight

Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3

This image shows SH2-200 planetary nebula and Trumpler 3 open cluster seen in the upper right corner of this image. (PI doesn't seem to recognize this cluster but Simbad does)

SH2-200 is a very old planetary nebula in the constellation of Cassiopeia and is commonly known as the Bear Claw Nebula due to the ripped structures on the surface of the enormous gas shell formed as this dying star shed its atmosphere at the end of its life. The energy of this faint planetary nebula is able to ionize unrelated interstellar gas in the vicinity.

Trumpler 3 is a young approximately 70 million years old open cluster, and about 2100 light years away, with brightness of 7th magnitude and has about 570 members.

Please note: The following tables are updated every 24 hours.

Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape
Artificial satellite

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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	...
PixInsight job	9LAXBVDZA9UMJ0937WU1AVM26VC0SQFI
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	03h10m50s.221
RA (top/left)	03h14m20s.237
RA (top/right)	03h14m00s.648
RA (bottom/right)	03h07m11s.827
RA (bottom/left)	03h07m46s.662

Dec (center)	+62°48′00″.80
Dec (top/left)	+62°15′16″.45
Dec (top/right)	+63°22′33″.20
Dec (bottom/right)	+63°20′25″.38
Dec (bottom/left)	+62°13′13″.42

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3

Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3

Bear Claw Nebula (Sh2-200) and open star cluster Trumpler 3

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information