Abell 84 (PK112-10.1/PN G112.9-10.2) - Mouse over for a closer look (DoubleStarPhotography)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: PGC 2395327 · PGC 72442 · PK112-10.1

Abell 84 (PK112-10.1/PN G112.9-10.2) - Mouse over for a closer look

Abell 84 is a planetary nebula in the constellation of Cassiopeia discovered by American astronomer George Ogden Abell in 1955 on the photo plates from the Palomar Observatory Sky Survey (POSS) project.

Most of the 86 PNs discovered on the POSS photo plates are large and have a low surface brightness, suggesting that they are in the later stage of their development/evolution.

Scanning AB, it looks like this PN has been rarely imaged to date with just over 20 images returning for Abell 84.

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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
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

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	...
Astrometry.net job	8959178
PixInsight job	7UQTAMXC89VRE7QOHQ03SUK6O2NBCQML
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h47m46s.335
RA (top/left)	23h49m54s.313
RA (top/right)	23h49m53s.148
RA (bottom/right)	23h45m36s.510
RA (bottom/left)	23h45m41s.393

Dec (center)	+51°24′13″.34
Dec (top/left)	+51°04′31″.15
Dec (top/right)	+51°44′15″.36
Dec (bottom/right)	+51°43′46″.87
Dec (bottom/left)	+51°04′03″.54

Image Index:

Contribution Index (beta):

Abell 84 (PK112-10.1/PN G112.9-10.2) - Mouse over for a closer look

Abell 84 (PK112-10.1/PN G112.9-10.2) - Mouse over for a closer look

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Image Index:

Contribution Index (beta):

Abell 84 (PK112-10.1/PN G112.9-10.2) - Mouse over for a closer look

Abell 84 (PK112-10.1/PN G112.9-10.2) - Mouse over for a closer look

Equipment

Acquisition details

Description

Comments

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C

Sky plot

Histogram

In these public groups

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