Sh2-173 The Phantom (Pete Bouras)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: NGC 103 · The star 12 Cas

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Sh2-173 The Phantom

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Sh2-173 The Phantom

HaRGB image with RGB stars.
Spent some time on the stretch to make sure the mask showed up nicely,
and not overwhelmed and faded into the background Ha nebulosity of which there is a considerable amount.

Thanks for looking
Clear Skies
Pete

Sh2 -173 is an emission nebula visible in the constellation Cassiopeia . It is an H II region with a diameter of 77 light years , located about 2700 parsecs (about 8800 light years) away. It is located on the Perseus Arm, one of the major spiral arms of the Milky Way, in contact with a large superbubble with a diameter of 380 parsecs, created by the stellar wind of the association's high-mass stars. It contains a large number of young stars, of which there are at least 7 among the main ones responsible for the ionization of gas , 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 nearby nebulae are also connected, as well as the open clusters NGC 103 and the radio wave source KR 98, plus the dark nebula LDN 1282. (wilipedia)

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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.
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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	Basic success
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Astrometry.net job	8628498
PixInsight job	n/a
PixInsight queue size	n/a
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Sh2-173 The Phantom

Sh2-173 The Phantom

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