Sh2 137 (Equipment Comparison) (Jerry Yesavage)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 17 Cep) · 17 ksi Cep · Al Kurhah (ξ Cep · HD207684 · HD207884 · HD208141 · HD208682 · HD209178 · HD209790 · LBN 498 · Sh2-137 · The star Kurhah

Powered byPixInsight

Sh2 137 (Equipment Comparison)

Powered byPixInsight

Sh2 137 (Equipment Comparison)

Repeating one more of the Sharpless2 Group to see what my new CMOS system can find with a deeper look at the H-alpha here.... I tried various enhancements to increased the sense of 3D here, but this is how it came out of the GHS box. A lot of natural texture for 2.5 h.

Previous version of SH2 137. This is with an ATRC10 and 11h on the CCD.

Sh2 137 HA RGB

Discussion of GHS aspects of processing:

GHS Forum Discussion

From GalaxyMap:

This HII region lies at a similar direction and distance as the Cepheus Bubble, a huge expanding shell of gas and dust surrounding the Cep OB2 association.

Avedisova identifies 5 ionising stars. The hottest of these is the O9.5 II multiple giant HD 207198.

GENERAL NOTE ON SHARPLESS2 OBJECTS>>>>>>>>>>>>>

There are 313 Sh2 objects. All now imaged.

This is my collection:

Sharpless2

Wide-Angle Hydrogen Alpha Nikon Image Sh2 79-171

Please note there is also a Sharpless2 Group with now more than 2700 examples.

Sharpless2 Group

Other useful links include:

Gary Imm's Collection

GalaxyMap's Collection

The Sharpless Catalog

The MDW H-alpha Sky Survey

Reiner Vogel's detailed observing catalog

Hope you enjoy these obscure but interesting objects...

Light Polluted skies
Sharpless2 Objects
ASI 6200 MM Pro
SF Bay Area Imagers
Cloudy Nights
"Simply Stellarvue"
Narrowband imaging
The refractors!

Sharpless2 Objects

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
Artificial satellite

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	...
PixInsight job	9DU9DUL3RM9IAZIFNWCLVZYBZRR2UTYH
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h57m11s.800
RA (top/left)	21h47m17s.297
RA (top/right)	22h06m51s.480
RA (bottom/right)	22h07m36s.958
RA (bottom/left)	21h46m59s.999

Dec (center)	+64°41′19″.21
Dec (top/left)	+63°57′54″.88
Dec (top/right)	+63°55′44″.44
Dec (bottom/right)	+65°22′10″.57
Dec (bottom/left)	+65°24′20″.94

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Sh2 137 (Equipment Comparison)

Sh2 137 (Equipment Comparison)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

AstroBin

AstroBin

Image Index:

Contribution Index (beta):

Sh2 137 (Equipment Comparison)

Sh2 137 (Equipment Comparison)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

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

Error

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information