The Bubble Nebula, NGC 7635, M52, NGC 7654 (Greg Meyer MD)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: Bubble Nebula · HD220057 · HD220770 · HD220819 · HD221038 · LBN 543 · LBN 548 · LBN 549 · LDN 1231 · M 52 · NGC 7635 · NGC 7654 · PK112-00.1 · Sh2-162

Powered byPixInsight

The Bubble Nebula, NGC 7635, M52, NGC 7654

Powered byPixInsight

The Bubble Nebula, NGC 7635, M52, NGC 7654

This is 40 hours and 50 minutes integration split between Phoenix Bortle 9 and Borrego Springs which is probably a Bortle 4, during the Nightfall Star Party there in October, 2022. In the processing I did a SHO blend formula that I got from Ron Brecher.R= (O^~O)*S + ~(O^~O)*H
G= ((O*H)^~(O*H))*H + ~((O*H)^~(O*H))*O
B= O
I did shoot some RGB just for the stars and added them back to the SHO image using Bill Blanchand's script. I wanted to reduce the stars a bit, but I didn't want to diminish the M52 cluster, so I made a mask using the GAME script to protect the cluster, while reducing all the other stars, using Bill's star reduction script. Final touches in Lightroom.

The Bubble Nebula is 7 light-years across and resides 7,100 light-years from Earth in the constellation Cassiopeia. The bubble is surrounded by Sh2-162, a billowy, textured cloud of glowing hydrogen gas. The star SAO 20575 is the creator of the Bubble Nebula and is estimated to weigh 45 solar masses. Its peculiar spectral classification of O6.5 indicates its surface temperature is a whopping 67,000 degrees Fahrenheit (37,200 degrees Celsius). Astronomers also estimate this star is losing mass at a rate of 1 solar mass every million years. The Bubble Nebula itself marks the edge of a shock wave interacting with the hydrogen atoms in the interstellar medium.

The open cluster M52 in the lower right is located 5,000 light years away.

Cloudy Nights

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	6536512
PixInsight job	ZYM5PY9F5X2Y6M40R8VL65928KE404JC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h22m10s.907
RA (top/left)	23h16m01s.798
RA (top/right)	23h28m19s.786
RA (bottom/right)	23h28m31s.874
RA (bottom/left)	23h15m49s.905

Dec (center)	+61°16′22″.80
Dec (top/left)	+60°45′46″.58
Dec (top/right)	+60°45′44″.60
Dec (bottom/right)	+61°45′52″.95
Dec (bottom/left)	+61°45′54″.30

Image Index:

Contribution Index (beta):

The Bubble Nebula, NGC 7635, M52, NGC 7654

The Bubble Nebula, NGC 7635, M52, NGC 7654

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

The Bubble Nebula, NGC 7635, M52, NGC 7654

The Bubble Nebula, NGC 7635, M52, NGC 7654

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