In the Galactic Ocean of Cepheus (Frank Rogin)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: 11 Cep · 16 Cep · 24 Cep · 31 Cep · 78 Dra · 8 Cep) · 8 bet Cep · Alfirk · B175 · Cepheus · HD205234 · HD205372 · HD205684 · HD206507 · HD206554 · HD206730 · HD206772 · HD206821 · HD207485 · HD207636 · HD208002 · HD208509 · HD209258 · HD209610 · HD210369 · HD210401 · HD210476 · HD210511 · HD210615 · HD210640 · And 53 more.

Image of the day 11/01/2023

Powered byPixInsight

In the Galactic Ocean of Cepheus

Image of the day 11/01/2023

Powered byPixInsight

In the Galactic Ocean of Cepheus

Today I would like to present you my most elaborate project of this summer 2023. For this I have chosen the extremely interesting region around the well-known dark nebulae i.e. the Shark Nebula, the Rotten Fish and Wolf's Cave Nebula to shot them with my new ASI294MM and the Samyang 135mm F/2 lens. Besides my backyard I used our vacation on the beautiful island of Corsica with its dark and not light polluted sky. So, more than 30 hours of frames could be integrated finally.

During the image processing in PixInsight I learned again some new things. I shot over 15 hours of Ha mainly from my backyard in Berlin (bortle 7/8). Unfortunately, the signal is not very strong since I used the white nights end of May and beginning of June. The Ha signal was subjected to a continuum subtraction. However, a subsequent addition into the R channel resulted in a rather red / magenta overall background. So I decided to add the signal first to the LRGB combined overall image. Before that I had to shift the black point extremely far to let only the strongest signal parts through. The procedure was applied with Oiii as well where I collected only 3,2 hours of signal. Several processing iteration and some trial-and-error were needed before I am was satisfied with the result.

So, I hope you like it.

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	8655767
PixInsight job	UM6IMR5S2ACM0F1HB56O3MMPPRDAJN9E
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h06m00s.53
RA (top/left)	22h29m41s.71
RA (top/right)	23h03m18s.84
RA (bottom/right)	21h25m59s.30
RA (bottom/left)	21h28m13s.47

Dec (center)	+73°06′29″.5
Dec (top/left)	+68°30′38″.6
Dec (top/right)	+76°25′03″.1
Dec (bottom/right)	+77°25′25″.9
Dec (bottom/left)	+69°08′33″.1

Image Index:

Contribution Index (beta):

Image of the day 11/01/2023

In the Galactic Ocean of Cepheus

Image of the day 11/01/2023

In the Galactic Ocean of Cepheus

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

Image Index:

Contribution Index (beta):

Image of the day 11/01/2023

In the Galactic Ocean of Cepheus

Image of the day 11/01/2023

In the Galactic Ocean of Cepheus

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