Thor's Helmet (Carlos Uriarte)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: HD56274 · HD56501 · HD56525 · HD56595 · HD56771 · HD56772 · HD56829 · HD56830 · HD56831 · HD56970 · HD57008 · HD57027 · HD57057 · HD57083 · HD57084 · HD57369 · IC 468 · LBN 1040 · LBN 1041 · NGC 2359 · Sh2-298

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Thor's Helmet

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Thor's Helmet

The nebula NGC 2359 is a helmet-shaped cosmic cloud with wing-shaped appendages, popularly called “Thor's Helmet.” Heroic in size even for a Norse god, Thor's helmet is approximately 30 light years in diameter. In fact, the hull is more like an interstellar bubble…, a fast wind from the bright, massive star near the center of the bubble that inflates a region within the surrounding molecular cloud. Known as a Wolf-Rayet star, the central star is an extremely hot giant believed to be in a brief stage of supernova evolution. NGC 2359 is located about 15,000 light years away, in the constellation Canis Major. The remarkably detailed image. It is a mixed cocktail of data from broadband and narrowband filters that captures natural-looking stars as well as the brightness of the nebula's filamentary structures. A greenish-blue color stands out, coming from the strong emission due to the oxygen atoms in the incandescent gas.

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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	9333069
PixInsight job	PNA4O4KDHGUIGG8B8Q4H3MI1D5SWB9AA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h18m22s.59
RA (top/left)	07h15m38s.21
RA (top/right)	07h16m55s.92
RA (bottom/right)	07h21m07s.30
RA (bottom/left)	07h19m48s.79

Dec (center)	-13°14′22″.1
Dec (top/left)	-13°00′09″.5
Dec (top/right)	-13°51′16″.2
Dec (bottom/right)	-13°28′28″.1
Dec (bottom/left)	-12°37′27″.5

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Thor's Helmet

Thor's Helmet

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Image Index:

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Thor's Helmet

Thor's Helmet

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