The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946) (mlewis)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B150 · Fireworks Galaxy · HD197373 · HD197734 · HD198300 · HD198662 · LDN 1076 · LDN 1082 · NGC 6946

Powered byPixInsight

The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946)

Link: https://www.thinairphotography.com/Astrophotography-Portfolio/Nebulae/i-TK8XcJH/A

Powered byPixInsight

The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946)

Link: https://www.thinairphotography.com/Astrophotography-Portfolio/Nebulae/i-TK8XcJH/A

This is a 3 panel mosaic that includes both the dark nebula Barnard 150 (the Seahorse Nebula) and the Fireworks Galaxy (NGC 6946). This is my first attempt at a mosaic and there were a number of challenges to overcome both with some collection planning issues and a number of issues that also crept in during the post processing. While the actual processing of the individual panels went OK, and even the stitching process was simpler than I was expecting, there were some optical issues from some mismatched flats and some apparent contamination on the red filter that caused issues that had to be either corrected manually or cropped out. I am also not sure of the background coloring - perhaps the faint red regions represent actual signal, it is not clear. But in spite of all of these issues I was able to make a final image that is at least worth posting, and the entire process of data collection and post processing has been an excellent learning experience to be used on future mosaic projects I might try in the future.

Original
Final
B

B

Description: Star reduction added using Bill Blanshan's excellent techniques in Pixinsight.

Uploaded: ...

N.I.N.A. Users

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	6325381
PixInsight job	9R3JVRZG6B72319U8O9MT1AD4ZZ4R4S6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h46m00s.22
RA (top/left)	20h54m37s.18
RA (top/right)	20h32m10s.61
RA (bottom/right)	20h38m05s.43
RA (bottom/left)	20h59m54s.76

Dec (center)	+60°21′24″.3
Dec (top/left)	+61°43′25″.7
Dec (top/right)	+60°13′23″.6
Dec (bottom/right)	+58°57′31″.3
Dec (bottom/left)	+60°24′08″.5

Image Index:

Contribution Index (beta):

The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946)

The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946)

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946)

The Seahorse Nebula (B150) with The Fireworks Galaxy (NGC 6946)

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