Perseus Double Cluster (Jack Groves)

Celestial hemisphere: Northern · Constellation: Perseus (Per) · Contains: 7 Per) · 7 chi Per · Double cluster · HD13841 · HD13854 · HD13910 · HD13969 · HD14052 · HD14053 · HD14134 · HD14143 · HD14210 · HD14250 · HD14270 · HD14330 · HD14357 · HD14433 · HD14434 · HD14443 · HD14476 · HD14488 · HD14535 · HD14542 · HD14580 · HD14581 · Misam · NGC 869 · NGC 884 · The star Misam al Thurayya I (χ Per · chi Persei Cluster · And 1 more.

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Perseus Double Cluster

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Perseus Double Cluster

Caldwell 14 - The Perseus Double Clusters, NGC 869 and NGC 884.

I've had a few attempts at shooting these clusters since starting my astrophotography journey. They are 2 of the few star clusters that I am able to faintly see with the naked eye from my moderately light-polluted back yard.

This is also the first image I am sharing that was captured with my 8" ONTC from Teleskop Service. It has been an absolute joy to use since I acquired it earlier this year.

Capturing the data was not particularly challenging, however when it came to processing the data I noticed that I had some horrible gradients and artifacts. I've diagnosed these issues as reflections due to my coma corrector protruding too close to the tube of my OTA. I've made some adjustments to my imaging train since noticing these issues and it seems to have done the trick.

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For the processing I tried keeping my workflow simple. I used the new BlurX AI 4 set to 'correct only' on the individual masters, channel combined them and then also ran the combined master through GraXpert which is a program I am still experimenting with, but has so far been very good at background extraction. SPCC for color calibration, I applied some light noise reduction and a Masked Stretch, and then adjusted the curves.

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	Distinct awarded users	Total awarded images
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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.
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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	8976977
PixInsight job	038QE91OY98UMD8O8T5Q4SN6K1YE0EJ1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h20m07s.383
RA (top/left)	02h24m59s.999
RA (top/right)	02h16m08s.611
RA (bottom/right)	02h15m18s.639
RA (bottom/left)	02h23m58s.860

Dec (center)	+57°10′50″.73
Dec (top/left)	+57°29′52″.84
Dec (top/right)	+57°40′49″.47
Dec (bottom/right)	+56°51′03″.19
Dec (bottom/left)	+56°40′26″.32

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Perseus Double Cluster

Perseus Double Cluster

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Image Index:

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Perseus Double Cluster

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