Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae (Eshan Toorabally)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · LBN 533 · LBN 536 · LBN 537 · LBN 540 · LBN 542 · LBN 543 · LBN 544 · LBN 548 · LBN 549 · LDN 1225 · LDN 1231 · NGC 7510 · NGC 7538 · NGC 7635 · PK110-00.1 · Sh2-157 · Sh2-158 · Sh2-159 · Sh2-162

Powered byPixInsight

Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae

Powered byPixInsight

Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae

I went for a "natural blend" narrowband colour mix here, though I may try a Hubble palette version of this in due course. I couldn't resist trying to capture both these objects in the same field of view, although the capture was affected by guiding and focus issues, not to mention the full moon.

The Lobster Claw Nebula, or Sharpless 157 (Sh2-157), is an emission nebula and, according to some sources, is between 8,000 and 17,000 light-years from Earth between the Cassiopeia and Cepheus constellations. There are several interesting features in the image, not least the Bubble Nebula, NGC 7635, a HII region emission nebula which lies 7,000-11,000 light-years from us and is a shell surrounding, and excited by, the star SAO 20575. Also in the frame are the Wolf-Rayet massive star WR 157, an open cluster of stars, NGC 7510 and the nebula NGC 7538, which is home to the largest yet discovered protostar, 300 times the size of our solar system.

Thanks for looking!

Original
Final
B

B

Description: After more star reduction

Uploaded: ...

Sharpless2 Objects
The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M
UK Astro-Imaging
Southern Hemisphere Astro
Suburban Astrophotography
Narrowband imaging

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	5280183
PixInsight job	Q7V8GCHLWUSX09D470E6E5AUYW5HQR6M
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h16m48s.378
RA (top/left)	23h23m03s.917
RA (top/right)	23h23m50s.176
RA (bottom/right)	23h10m06s.205
RA (bottom/left)	23h10m14s.260

Dec (center)	+60°34′50″.87
Dec (top/left)	+59°26′42″.90
Dec (top/right)	+61°40′01″.54
Dec (bottom/right)	+61°41′48″.60
Dec (bottom/left)	+59°28′24″.45

Image Index:

Contribution Index (beta):

Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae

Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae

Sh2-157 and NGC 7635 The Lobster Claw and Bubble Nebulae

Equipment

Acquisition details

Description

Comments

Revisions

B

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?

Delete this revision?

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