ngc 4565 (astroeyes)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: NGC 4565

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ngc 4565

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ngc 4565

The Needle Galaxy (NGC 4565) is a large barred spiral galaxy that spans over 100,000 light-years in diameter. It is located about 40 million light-years away in the northern constellation Coma Berenices and is receeding from us at some 1230 kilometers per second.

NGC 4565 is known as the Needle Galaxy for its narrow profile, and is a famous and excellent example of an edge-on spiral galaxy. In fact, some consider the Needle galaxy to be a prominent celestial masterpiece Messier missed. If our own galaxy was viewed from this perspective, the Milky Way would appear very much like the Needle Galaxy.

The Needle Galaxy has a flat, thin disk structure that shows warping at it’s edges due to an ancient interaction with a passing galaxy. Obscuring lanes of gas and dust lace the galaxy’s disk and are reddening the light emanating from the star-filled interior. Its bulging central core is dominated by older yellowish stars.

Studying galaxies like the Needle Galaxy helps astronomers learn more about our own Milky Way. It is relatively close by, and being seen edge-on makes it a particularly useful object for comparative study. The Needle galaxy reveals several features that scientists also find in the Milky Way. Both are spiral galaxies with dark lanes of interstellar dust that are blocking some of the light pouring out of their galactic cores. (Courtesy of annesastronomynews.com)

The little streak in the bottom left hand corner is interesting. It marks the passage of some astronomical object over the course of the exposure, 1.7 hours. Presumably an asteroid, though there are other possibilities.

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	Basic success
Started	...
Astrometry.net job	992936
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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ngc 4565

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