Caldwell 49 The Rosette Nebula (Dale A Chamberlain)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · NGC 2237 · NGC 2238 · NGC 2239 · NGC 2244 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · Sh2-275 · The star 12Mon

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Caldwell 49 The Rosette Nebula

Link: https://chamberlainobservatory.com/index.php/welcome-to-the-chamberlain-observatory-website/photo-gallery/caldwell-49-the-rosette-nebula/

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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Caldwell 49 The Rosette Nebula

Link: https://chamberlainobservatory.com/index.php/welcome-to-the-chamberlain-observatory-website/photo-gallery/caldwell-49-the-rosette-nebula/

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

The Rosette Nebula (also known as Caldwell 49) is a large spherical hydrogen II region (circular in appearance) located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula’s matter.

The cluster and nebula lie at some 5,000 light-years from Earth and measure roughly 130 light-years in diameter. The radiation from the young stars excites the atoms in the nebula, causing them to emit radiation themselves producing the emission nebula we see. The mass of the nebula is estimated to be around 10,000 solar masses.

A survey of the nebula with the Chandra X-ray Observatory has revealed the presence of numerous new-born stars inside optical Rosette Nebula and studded within a dense molecular cloud.

On April 16, 2019, the Oklahoma Legislature passed HB1292 making the Rosette Nebula as the official state astronomical object. Oklahoma Governor Kevin Stitt signed it into law on April 22, 2019.

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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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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
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	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
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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	3380935
PixInsight job	9O0MYDOL9I7X9JFTOVSCIXJ76RXMQE2Y
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h32m36s.16
RA (top/left)	06h37m24s.95
RA (top/right)	06h27m43s.85
RA (bottom/right)	06h27m48s.47
RA (bottom/left)	06h37m26s.10

Dec (center)	+05°01′57″.2
Dec (top/left)	+05°56′49″.8
Dec (top/right)	+05°56′24″.7
Dec (bottom/right)	+04°06′37″.7
Dec (bottom/left)	+04°07′20″.4

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Caldwell 49 The Rosette Nebula

Caldwell 49 The Rosette Nebula

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Caldwell 49 The Rosette Nebula

Caldwell 49 The Rosette Nebula

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