SH2-173 - The Phantom of the Opera (Pedro Sánchez)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 12 Cas · HD1057 · HD1142 · HD1166 · HD1239 · HD1383 · HD1544 · HD1613 · HD1697 · HD1743 · HD1810 · HD1843 · LBN 592 · LBN 593 · LDN 1282 · LDN 1283 · NGC 103 · Sh2-172 · Sh2-173 · The star 12 Cas

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SH2-173 - The Phantom of the Opera

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SH2-173 - The Phantom of the Opera

It is an H II region with a diameter of 77 light-years, located about 8,800 light-years distant. It is located in the Perseus Arm, one of the main spiral arms of the Milky Way, in correspondence with the OB Cassiopeia OB5 association, which includes some open clusters and nebulae, such as Sh2-172 and Sh2-177. It contains a large number of young stars, of which there would be at least 7 among the main ones responsible for the ionization of gases, the hottest of which is cataloged as BD + 60 39, a blue star of spectral class O9V; it would be part of a large star-forming region located near the Cas OB5 association, to which neighboring nebulae are also connected, as well as the open clusters NGC 103 and the radio wave source KR 98, more the dark nebula LDN 1282 .

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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.
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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	6198841
PixInsight job	B1FVKPOI8P6OHRMQD9LME31S4Q8IAU6Y
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h22m00s.99
RA (top/left)	00h28m07s.15
RA (top/right)	00h12m44s.88
RA (bottom/right)	00h16m15s.57
RA (bottom/left)	00h31m06s.37

Dec (center)	+61°40′45″.9
Dec (top/left)	+62°33′21″.6
Dec (top/right)	+61°57′41″.7
Dec (bottom/right)	+60°47′15″.10
Dec (bottom/left)	+61°21′36″.7

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SH2-173 - The Phantom of the Opera

SH2-173 - The Phantom of the Opera

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SH2-173 - The Phantom of the Opera

SH2-173 - The Phantom of the Opera

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