NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB) (Frank Breslawski)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 10 Per · 5 Per · 7 chi Per · 8 Per · B201 · Double cluster · Misam · NGC 869 · NGC 884 · The star 7Per · The star 8Per · chi Persei Cluster · h Persei Cluster

Powered byPixInsight

NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB)

Link: https://www.astronomie.de/neuigkeiten/11-woche-der-doppelsternhaufen-h-chi-persei/

Powered byPixInsight

NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB)

Link: https://www.astronomie.de/neuigkeiten/11-woche-der-doppelsternhaufen-h-chi-persei/

My image shows the well known double cluster h&chi, which I had chosen as firstlight for my new Takahashi Epsilon 130D. My primary goal was to test the quality of the stars. Then I had the idea to test the enormous light sensitivity of the optics and to make the (very weak) existing hydrogen parts in this region visible. An extremely long exposure (11 hours at f/3.3) only for H-Alpha then enabled me to take this photo after an elaborate levelling of the background and mixing into the red channel.

So far there is only a very limited number of images that show the double cluster embedded in the red H-Alpha structures. Preserving the natural colors of the stars was a big challenge for me. But I think that the effort was worth it. :-)

Final
Original
B

B

Description: LRGB version without H-Alpha data

Uploaded: ...

Astrel-Instruments Cameras
KODAK 8300 sensor
Narrowband imaging
Open Star Clusters
Fast Newtonians

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	3307918
PixInsight job	YBEKQS88KY9PLCE5H2M0RA3WVKN7D8A6
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	02h19m48s.57
RA (top/left)	02h28m21s.70
RA (top/right)	02h11m03s.27
RA (bottom/right)	02h11m38s.80
RA (bottom/left)	02h28m11s.25

Dec (center)	+57°05′58″.5
Dec (top/left)	+57°55′20″.6
Dec (top/right)	+57°53′03″.6
Dec (bottom/right)	+56°14′35″.9
Dec (bottom/left)	+56°16′55″.4

Image Index:

Contribution Index (beta):

NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB)

NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB)

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

Image Index:

Contribution Index (beta):

NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB)

NGC 884 & NGC 869 - h&chi Double Cluster (HaLRGB)

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