NGC 4449 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: NGC 4449

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NGC 4449

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NGC 4449

This object is a wonderful irregular galaxy located only 12 million light years away in the constellation of Canes Venatici. Many bright blue star clusters and pink star forming regions are seen throughout the galaxy, indicative of an active star formation galaxy. In fact, I actually gasped when I saw my first Ha sub. Of all of the galaxies I have imaged, I believe that this galaxy has the strongest Ha signal relative to the strength of the red signal.

The clusters and Ha regions lie in strangely curving arcs. Aside from a barred section across the core, I see little uniform structure to the arm patterns. The galaxy looks to me like an octopus running on fire, with its arms waving frantically for help. Astronomers believe the strange shape is caused by the merger and gravitational interactions of several small galaxies, evolving into one larger (but still small) one. This assessment has led to an interesting alternative name for this galaxy - the Train Wreck Galaxy.

The entire galaxy is shrouded in a cloud of stars which haven't yet gravitationally fallen into place. Dark dust clouds are visible throughout the galaxy, particularly a large two lobed cloud in the center of the image. A pretty double star is located to the left of the galaxy. This galaxy is believed to contain several billion stars.

The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M

BCD (Blue Compact Dwarf) Galaxies
Brightest Galaxy Catalog (Complete)
Caldwell Catalog (Complete*)
Irregular Galaxies

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	Distinct awarded users	Total awarded images
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	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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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	1911320
PixInsight job	DE0TLJF7143JT5OG0C9IUC87T0NPFC34
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	12h28m11s.966
RA (top/left)	12h27m02s.930
RA (top/right)	12h28m31s.201
RA (bottom/right)	12h29m20s.891
RA (bottom/left)	12h27m52s.555

Dec (center)	+44°05′43″.36
Dec (top/left)	+44°09′09″.64
Dec (top/right)	+43°53′19″.56
Dec (bottom/right)	+44°02′14″.10
Dec (bottom/left)	+44°18′06″.68

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NGC 4449

NGC 4449

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NGC 4449

NGC 4449

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