NGC3642 - a rarely imaged galaxy in Ursa Major (GalacticRAVE)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3642

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NGC3642 - a rarely imaged galaxy in Ursa Major

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NGC3642 - a rarely imaged galaxy in Ursa Major

NGC3642 is spiral galaxy in the constellation Ursa Major. It features an active galactic nuclei. Interestingly, the German and English Wikipedia differ by a factor of 2 in distance (and thus size) while quoting the same reference ... :-)

While NGC3642 is the brightest object in the NGC3642 or LCG234 group, it actually is a difficult object to image: the nucleus is fairly bright, but the disk is quite extended and of low surface brightness, making it quite hard to work it out against the sky background in light polluted suburbia. On the other hand side, when successful, one turns out with a decent sized galaxy image.

data were taken on 2024 January 16, 18 and 20.

Original
Final
C

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N.I.N.A. Users
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Galaxies

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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
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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
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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	9087841
PixInsight job	G7A6IQ0VNAIPARLEP7813DF10N752DSQ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h22m18s.568
RA (top/left)	11h23m49s.506
RA (top/right)	11h20m47s.740
RA (bottom/right)	11h20m48s.419
RA (bottom/left)	11h23m48s.712

Dec (center)	+59°04′26″.32
Dec (top/left)	+59°12′16″.26
Dec (top/right)	+59°12′17″.25
Dec (bottom/right)	+58°56′32″.39
Dec (bottom/left)	+58°56′31″.62

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NGC3642 - a rarely imaged galaxy in Ursa Major

NGC3642 - a rarely imaged galaxy in Ursa Major

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Image Index:

Contribution Index (beta):

NGC3642 - a rarely imaged galaxy in Ursa Major

NGC3642 - a rarely imaged galaxy in Ursa Major

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