HDW 5

Celestial hemisphere: Southern · Constellation: Monoceros (Mon) · Contains: PK218-10.1

HDW 5

This Astrobin Debut Object is a planetary nebula located 3600 light years away in the constellation of Monoceros at a declination of -10 degrees. It is a magnitude 15.4 PN that spans 1.4 arc-minutes in our apparent view, which corresponds to a width of 1.5 light years.

This object is the 5th in a series of PN identified in a publication by Hartl, Dengel, and Weinberger in 1983. Surprisingly little has been written on this interesting object. It looks like a multipolar PN similar in structure to G100.4+04.6 and KjPn 8, and similar in HII composition to the latter. Note the wide HII stream heading up from the center.

The progenitor star does not appear to be visible.

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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.
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	5417149
PixInsight job	2FIUQF6VC2ONLV8XG76W3YOC43A4BKDG
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h23m37s.430
RA (top/left)	06h24m16s.989
RA (top/right)	06h22m53s.878
RA (bottom/right)	06h22m57s.830
RA (bottom/left)	06h24m20s.203

Dec (center)	-10°12′36″.19
Dec (top/left)	-10°05′00″.48
Dec (top/right)	-10°06′09″.51
Dec (bottom/right)	-10°20′14″.80
Dec (bottom/left)	-10°19′02″.60

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