Sh2-290 / Abell 31 PN (Hunter Outten)

Celestial hemisphere: Northern · Constellation: Cancer (Cnc) · Contains: IC 523 · PK219+31.1 · Sh2-290

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Sh2-290 / Abell 31 PN

Link: https://www.instagram.com/outtenastrophotography/

Powered byPixInsight

Sh2-290 / Abell 31 PN

Link: https://www.instagram.com/outtenastrophotography/

Sh2-290, also known as Abell 31, is an ancient planetary nebula located in the constellation of Cancer. Here is a summary of Sh2-290 / Abell 31:

Sh2-290 is an ancient planetary nebula that is approximately 2,000 light years away from Earth.
It is one of the largest known planetary nebulae, with a diameter of about 7 parsecs.
The bluish interior of Sh2-290 is caused by energized oxygen atoms.
The central star of Sh2-290 is a tiny white dwarf, about 4 times bigger than Earth or about 0.04 times the size of the Sun, and incredibly hot at about 85,000° Celsius.
This planetary nebula has been around for over 100,000 years, making it often described as ancient.
Sh2-290 is also known by other names, including PK 219+31.1 and Sharpless 221.

ZWO ASI 2600MC PRO
Virginia Astronomers and Astrophotographers
Optolong L-Ultimate filter

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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
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Star trails
Northern lights
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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
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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	...
Astrometry.net job	9072647
PixInsight job	731BQUK1GYJJUNEOJHY28OKRX39YTEYZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	08h54m14s.818
RA (top/left)	08h52m35s.395
RA (top/right)	08h52m42s.307
RA (bottom/right)	08h55m53s.964
RA (bottom/left)	08h55m47s.613

Dec (center)	+08°54′27″.23
Dec (top/left)	+09°28′38″.51
Dec (top/right)	+08°19′06″.76
Dec (bottom/right)	+08°20′13″.83
Dec (bottom/left)	+09°29′45″.23

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Sh2-290 / Abell 31 PN

Sh2-290 / Abell 31 PN

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Image Index:

Contribution Index (beta):

Sh2-290 / Abell 31 PN

Sh2-290 / Abell 31 PN

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