G2.4+1.4 (WR 102 The Hottest Known Star) (Daniel Stern)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: HD160972 · HD161117 · HD161387 · LBN 9 · LDN 82 · PK002+01.1 · PK002+01.3 · PK002+01.4

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G2.4+1.4 (WR 102 The Hottest Known Star)

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G2.4+1.4 (WR 102 The Hottest Known Star)

WR 102 is a Wolf-Rayet star within the pictured nebula. Generally, Wolf-Rayet stars are rare, massive, luminous stars characterized by strong stellar winds and intense radiation. Wolf-Rayet stars are uncommon and WR-102 stands out even among that special category. It’s an extraordinary star with a mass about 300 times that of the Sun (a typical WR star has a mass of about 50 times that of the Sun) and a luminosity of 5 million times that of the Sun (a typical WR star has a luminosity of about 50 times that of our Sun), making it one of the largest and brightest known stars in our galaxy. It is likely in the final stages of its evolution, having exhausted its hydrogen fuel and most of its helium and expanded to become a giant. It is expected to go supernova in the next 1,500 – 10,000 years.

Please note: The following tables are updated every 24 hours.

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	9829787
PixInsight job	DLJ4MM1MLGQWFYXRYU2Z5QXJGVE70C14
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h45m42s.828
RA (top/left)	17h48m10s.552
RA (top/right)	17h43m29s.918
RA (bottom/right)	17h43m13s.835
RA (bottom/left)	17h47m57s.110

Dec (center)	-26°10′18″.72
Dec (top/left)	-25°40′14″.28
Dec (top/right)	-25°36′54″.33
Dec (bottom/right)	-26°40′09″.73
Dec (bottom/left)	-26°43′28″.82

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Contribution Index (beta):

G2.4+1.4 (WR 102 The Hottest Known Star)

G2.4+1.4 (WR 102 The Hottest Known Star)

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Image Index:

Contribution Index (beta):

G2.4+1.4 (WR 102 The Hottest Known Star)

G2.4+1.4 (WR 102 The Hottest Known Star)

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Description

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