Barnard150, Sh2-129 and OU4 (Steve Spring)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: B148 · B149 · B150 · HD198300 · HD198662 · HD199306 · HD199937 · HD199967 · HD200205 · HD201063 · HD201344 · HD201429 · HD202214 · HD202380 · HD203265 · HD239582 · HD239605 · HD239618 · HD239626 · LBN 441 · LBN 445 · LBN 449 · LBN 453 · LDN 1076 · LDN 1082 · Sh2-129

Powered byPixInsight

Barnard150, Sh2-129 and OU4

Powered byPixInsight

Barnard150, Sh2-129 and OU4

48 x 600s OSC Narrowband
180 x 60s OSC RGB

This is a 6-panel mosaic taken over multiple nights back in the summer when the nights were short. Fitting 6 panels in each night meant for lower exposures than is needed for this target and typically, during a week of clear skies there was a full moon, not great for teasing out the faint traces of OIII that make up The Squid, OU4 or the RGB needed for Barnard150.

An ambitious project for myself, that has stretched me and taught me some new things. I have read elsewhere about this target and found out for myself that getting enough OIII data, preferably not during a Full Moon, is important but dealing with the noise is harder still. My data was left with swathes of green/blue across the centre which forced a steep learning curve in masking in order to bring out the wanted signal.

I will hope to return to this target in the future and gather better data, I can't help thinking a mono camera would be better, but I am yet to try that and so cannot rightfully compare. This will have to do for this year. Unfortunately, the three panels surrounding OU4 require more data, and this can be seen in the image. I don't want to spend any more time on the data I have and have enjoyed learning new techniques along the way. There are other targets to visit.

The panels consist of 4 narrowband for Sh2-129/OU4 and 2 RGB for Barnard150. These were much easier to process separately, and I will post them later. It was a challenge to blend the two and I hope the result is worth my effort. I don't think I could do it any better.............yet

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	6377405
PixInsight job	4SAWASTNUFM2W59MPGNHXXB8HWZ0D0V9
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h02m43s.76
RA (top/left)	21h20m24s.48
RA (top/right)	20h44m53s.73
RA (bottom/right)	20h46m25s.23
RA (bottom/left)	21h19m10s.12

Dec (center)	+60°09′36″.4
Dec (top/left)	+61°26′03″.8
Dec (top/right)	+61°24′12″.2
Dec (bottom/right)	+58°44′51″.1
Dec (bottom/left)	+58°46′41″.2

Image Index:

Contribution Index (beta):

Barnard150, Sh2-129 and OU4

Barnard150, Sh2-129 and OU4

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Image Index:

Contribution Index (beta):

Barnard150, Sh2-129 and OU4

Barnard150, Sh2-129 and OU4

Equipment

Acquisition details

Description

Comments

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?

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