Caldwell 7 - spiral galaxy (Monty Chandler)

Celestial hemisphere: Northern · Constellation: Camelopardalis (Cam) · Contains: NGC 2403 · NGC 2404

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Caldwell 7 - spiral galaxy

Link: https://montychandler.smugmug.com/Astrophotography/The-Heavans/i-Cp4fmXF/A

Powered byPixInsight

Caldwell 7 - spiral galaxy

Link: https://montychandler.smugmug.com/Astrophotography/The-Heavans/i-Cp4fmXF/A

Caldwell 7 is a hazy blueish intermediate spiral galaxy with pink gaseous regions and dark dust filaments located in the constellation Camelopardalis. It is an outlying member of the M81 Group, and is approximately 9.5 million light-years distant. It bears a similarity to M33, being about 80,000 light years in diameter and containing numerous star-forming H II regions. The northern spiral arm connects it to the star forming region NGC 2404.

There have been two reported supernovae in the galaxy: SN 1954J, which attained a magnitude of 16 at its brightest, and SN 2004dj. SN 2004dj was the nearest and brightest supernovae in the past 19 years. It remains nearest and brightest supernova in 21st century.

This image was caputured Dec 15th, 2023 and consists of 121 5 minute exposures shot with the ASI071MC camera and a RC8 telescope riding an Eq6r Pro mount. Captured with APT and guiding with PHD2. Processed manually in Pixinsight.

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
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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
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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	8919259
PixInsight job	XJZNWWDMWPA5TLSLCMXQQORTYQONRPMF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h36m55s.677
RA (top/left)	07h39m29s.836
RA (top/right)	07h39m29s.362
RA (bottom/right)	07h34m16s.613
RA (bottom/left)	07h34m26s.588

Dec (center)	+65°37′42″.86
Dec (top/left)	+65°13′28″.49
Dec (top/right)	+66°02′07″.26
Dec (bottom/right)	+66°01′43″.53
Dec (bottom/left)	+65°13′07″.48

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Caldwell 7 - spiral galaxy

Caldwell 7 - spiral galaxy

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Caldwell 7 - spiral galaxy

Caldwell 7 - spiral galaxy

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