Phantom of the Opera Nebula - SH2-173 (Monty Chandler)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 12 Cas · HD1057 · HD1166 · HD1383 · HD1400 · HD1544 · HD1613 · HD1697 · HD1743 · HD1810 · LBN 592 · LBN 593 · LDN 1282 · LDN 1283 · NGC 103 · Sh2-173 · The star 12 Cas

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Phantom of the Opera Nebula - SH2-173

Link: https://montychandler.smugmug.com/Astrophotography/Nebula/i-89GgZ8Z

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Phantom of the Opera Nebula - SH2-173

Link: https://montychandler.smugmug.com/Astrophotography/Nebula/i-89GgZ8Z

Sh 2-173 (Phantom of the Opera Nebula) is a very faint Hii emission nebula located in the constellation Cassiopeia.

This image consists of a stack of 220 6 minute exposures taken with a ZWO asi071mc astrophotography camera and a sky watcher esprit 120ed telescope on a SW EQ6r mount.

Image acquisition via APT & PHD2. Processed in PixInsight.

Original
Final
B

B

Description: This image consists of a stack of 137 6 minute exposures taken with a ZWO asi2600mc cooled astro camera and a sky watcher esprit 120ed telescope on a SW EQ6r mount.

Image acquisition via APT & PHD2. Processed in PixInsight.

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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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	6715404
PixInsight job	BOQ8TH0OFVBONKY5S1EO9A4EPZ2XVRI8
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h21m58s.262
RA (top/left)	00h29m42s.910
RA (top/right)	00h18m56s.376
RA (bottom/right)	00h14m13s.348
RA (bottom/left)	00h24m50s.373

Dec (center)	+61°45′17″.69
Dec (top/left)	+61°43′00″.30
Dec (top/right)	+62°36′01″.55
Dec (bottom/right)	+61°45′59″.00
Dec (bottom/left)	+60°54′19″.93

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Phantom of the Opera Nebula - SH2-173

Phantom of the Opera Nebula - SH2-173

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Phantom of the Opera Nebula - SH2-173

Phantom of the Opera Nebula - SH2-173

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