M104 Sombrero Galaxy (Edward Overstreet)

Celestial hemisphere: Southern · Constellation: Virgo (Vir) · Contains: M 104 · NGC 4594 · Sombrero Galaxy

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M104 Sombrero Galaxy

Link: https://www.youtube.com/user/MrEdoverstreet/videos

Link to TIFF/FITS: https://www.nightskyimager.com/

Powered byPixInsight

M104 Sombrero Galaxy

Link: https://www.youtube.com/user/MrEdoverstreet/videos

Link to TIFF/FITS: https://www.nightskyimager.com/

M104 The Sombrero Galaxy is a spiral galaxy in the constellation Virgo, whose bright nucleus, unusually large central bulge, and prominent dust ring give it the appearance of a Mexican hat......well I guess!

In 1912, M104 became the first galaxy for which a large redshift was found, by Vesto Slipher of Lowell Observatory. M104's redshift corresponds to a recession velocity of about 1100 km/sec - too fast for it to be an object inside our Milky Way galaxy. Slipher's observations were among the first key pieces of evidence for of the expansion of the universe and the Big Bang Theory. Slipher also observed rotation in the spectrum of the Sombrero, making it the first galaxy in which rotation was observed.

At least two methods have been used to measure the distance to the Sombrero Galaxy; their results average 29.3 million light years, with an uncertainty of 1.6 million. It has a linear diameter of 130,000 light-years. The symmetric dust ring that encloses the central bulge also contains most of the galaxy's cold hydrogen gas, and is the primary site of star formation within the galaxy.

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Distribution of astrophotographers

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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
Deep sky
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Extremely wide field
Star trails
Northern lights
Noctilucent clouds
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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	5717742
PixInsight job	H4L7R2EC9EIKL0YG0BOW3LV2XII692UR
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h39m59s.999
RA (top/left)	12h40m28s.517
RA (top/right)	12h39m11s.701
RA (bottom/right)	12h39m30s.772
RA (bottom/left)	12h40m47s.663

Dec (center)	-11°37′25″.60
Dec (top/left)	-11°26′09″.62
Dec (top/right)	-11°31′12″.20
Dec (bottom/right)	-11°48′40″.50
Dec (bottom/left)	-11°43′37″.18

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M104 Sombrero Galaxy

M104 Sombrero Galaxy

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M104 Sombrero Galaxy

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