Sh2-173, Phantom of the Opera Nebula (Doug Summers)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas)

Sh2-173, Phantom of the Opera Nebula, Doug Summers

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Sh2-173, Phantom of the Opera Nebula

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Sh2-173, Phantom of the Opera Nebula

Located nearly 9K light-years away, this complex nebula region in the Perseus arm of our galaxy contains dust, gas, reflection and mostly emission nebula. The nebula resembles the mask in the play Phantom of the Opera. It's a creepy similarity! The region is on the order of 80 light-years wide.

In this OSC view of the object, I've elected to NOT remove most of the stars from the image. IMO, too many of the Astrobin images of this object have removed too much of the internals of the object to show the mask, with the result that the full complexity of the region is affected. This image has a bit of everything in it, and you can still make out the mask. I hope you like it. The Phantom is a worthy post-processing object; it doesn't give up details easily!

The OSC Club (One Shot Camera)
Celestron RASA

Bright/Dark Nebulae

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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.
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	Basic success
Started	...
Astrometry.net job	6679469
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Sh2-173, Phantom of the Opera Nebula

Sh2-173, Phantom of the Opera Nebula

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Sh2-173, Phantom of the Opera Nebula

Sh2-173, Phantom of the Opera Nebula

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