Southern Cepheus: Garnet Star to Wizard nebulae (Arnie)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 10 Cep) · 21 Cep · 22 Cep · 23 Cep · 27 Cep · Erakis (μ Cep) · NGC 7380 · The star 12 Cep · The star 18 Cep · The star 19 Cep · The star 20 Cep · The star Castula (ν Cep · The star The Garnet Star · The star δ Cep · The star ε Cep · The star ζ Cep · The star λ Cep

Southern Cepheus: Garnet Star to Wizard nebulae, Arnie

Powered byPixInsight

Southern Cepheus: Garnet Star to Wizard nebulae

Powered byPixInsight

Southern Cepheus: Garnet Star to Wizard nebulae

While waiting night after night for the supernova remnant I'm imaging to clear the trees, I imaged southern Cepheus with a 180mm telephoto lens just to have something to do. Turned out pretty good in it's own right. This is the main image; the revision is annotated with the various Sharpless emission and Barnard dark nebulae.
Details:
Nikon 180mm telephoto at f/2.8
ZWO ASI6200MM-Pro
ZWO H-alpha and RGB filters
H-alpha: 24 x 10 minutes
R, G and B: 10 x 30 seconds each

I processed this a little differently than ever before. For the nebulae, I created a blank RGB document in Photoshop. After removing the stars from my monochrome H-alpha image, I pasted it into the red channel of the new document at 80% opacity, pasted it again into the green channel at 5% opacity, and one last time into the blue channel at 15% opacity. I think it gave me much better color than just adding the H-a data to the red channel. After combining the RGB star data, I isolated the narrowband star data using the difference between the original H-a file and the starless one, then used this as a luminance channel for the stars. This tightened them up nicely. The star file was then laid on top of the H-a file using Linear Dodge blending mode.

If anybody knows the identity of the dark nebulae towards the lower center of the image, I'd love to hear from you!

Arnie

Final
Original
B

B

Title: Southern Cepheus: Garnet Star to Wizard nebulae (annotated)

Description: Annotated version showing Sharpless and Barnard catalog objects.

Uploaded: ...

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	Basic success
Started	...
Astrometry.net job	6284336
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

Southern Cepheus: Garnet Star to Wizard nebulae

Southern Cepheus: Garnet Star to Wizard nebulae

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

Image Index:

Contribution Index (beta):

Southern Cepheus: Garnet Star to Wizard nebulae

Southern Cepheus: Garnet Star to Wizard nebulae

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

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