PK 164+31.1 Headphones Nebula (JohnAdastra)

Celestial hemisphere: Northern · Constellation: Lynx (Lyn) · Contains: PK164+31.1

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PK 164+31.1 Headphones Nebula

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PK 164+31.1 Headphones Nebula

PK 164+31.1, also known as IC 59 and IC 63, is an HII region that spans approximately 20 light-years across. It is located at a distance of about 710 parsecs (2320 light-years) from Earth and has an estimated mass of 400 solar masses. The Headphones Nebula is believed to have been ionized by one or more O-type stars, which have a high effective temperature and emit copious amounts of ionizing radiation. These stars are short-lived and have masses in excess of 16 solar masses. Their intense radiation strips electrons from nearby atoms, ionizing the gas and producing the characteristic red glow observed in the nebula.

This target is fairly strong in Ha and OIII bandwidths and is a nice winter target for astrophotographers in the Northern Hemisphere. Again due to the advances in processing from RC Astro's recent scripts, more details were teased out of this nebula than during prior trials, which showed little more than its basic name-sake shape.

Light Polluted skies
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LVAAS Astroimaging
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Narrowband imaging
Suburban Astrophotography
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Nebula Photos Monthly Challenge

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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
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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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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
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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	7406932
PixInsight job	1LZ86R3IIPYEW9FQY3OZEKQOJI1WI8CS
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h57m52s.493
RA (top/left)	07h58m45s.428
RA (top/right)	07h59m28s.570
RA (bottom/right)	07h56m58s.658
RA (bottom/left)	07h56m17s.466

Dec (center)	+53°25′15″.83
Dec (top/left)	+53°05′35″.93
Dec (top/right)	+53°40′56″.45
Dec (bottom/right)	+53°44′54″.75
Dec (bottom/left)	+53°09′30″.71

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PK 164+31.1 Headphones Nebula

PK 164+31.1 Headphones Nebula

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PK 164+31.1 Headphones Nebula

PK 164+31.1 Headphones Nebula

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