Phantom of the Opera (Sh2-173) (Massimo Di Fusco)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 12 Cas · HD1166 · HD1383 · HD1400 · HD1544 · HD1613 · HD1697 · HD1743 · HD1810 · HD1843 · LBN 592 · LBN 593 · LDN 1282 · LDN 1283 · NGC 103 · Sh2-173 · The star 12 Cas

Powered byPixInsight

Phantom of the Opera (Sh2-173)

Powered byPixInsight

Phantom of the Opera (Sh2-173)

Sh2-173 is an emission nebula rich in ionized Hydrogen with a diameter of 77 light-years, lying 8800 light-years from Earth in the constellation Cassiopeia. It is part of the Perseus arm of our Milky Way Galaxy. Its shape and dark dust clouds bear a resemblance to the mask worn by the Phantom of the Opera in the Broadway musical or the film starring Lon Chaney. Hence it is commonly referred to as the Phantom of the Opera Nebula. It is an extremely faint nebula requiring long exposures and from my city sky it is not at all simple.

Sharpless2 Objects
AstroBin Platform open discussions community forum
AAA : Astronomes et Astrographes Amateurs
Duo-band, Tri-band, and Quad-band Imaging
Beginners AP
/r/astrophotography
Cloudy Nights
Image the Universe
N.I.N.A. Users
FriendlyCosmos
Imagers of Italy
Optolong L-eXtreme filter
Narrowband imaging
Suburban Astrophotography
QHY Users Group
PixInsight Addicts
Cooled Color Cams

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	6331079
PixInsight job	13IC3WAL0E6RMJB5HHZOAN04MWLPJIJN
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h22m02s.62
RA (top/left)	00h29m26s.52
RA (top/right)	00h23m01s.10
RA (bottom/right)	00h14m31s.44
RA (bottom/left)	00h21m08s.40

Dec (center)	+61°46′22″.4
Dec (top/left)	+61°29′28″.8
Dec (top/right)	+62°41′17″.7
Dec (bottom/right)	+62°01′48″.7
Dec (bottom/left)	+60°51′25″.1

Image Index:

Contribution Index (beta):

Phantom of the Opera (Sh2-173)

Phantom of the Opera (Sh2-173)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Phantom of the Opera (Sh2-173)

Phantom of the Opera (Sh2-173)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information