Rossetten-Nebula (Simone Grosso)

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

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Rossetten-Nebula

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Rossetten-Nebula

The Rosette Nebula is a diffuse emission nebula with an embedded open star cluster in the constellation of the Unicorn. The nebula has a size of 80.0' × 60.0' and an apparent magnitude of 6.0. Today the NGC objects denote NGC 2237 (observation by Lewis A. Swift of 1865)[2], NGC 2238 (observation of Albert Marth of February 28, 1864)[3], NGC 2239 (observation of John Herschel of March 1830) [4] and NGC 2246 (observation by Lewis A. Swift of February 27, 1886)[5] different parts of the nebula. Historically, the four numbers denoted slightly different star clusters and nebulae in this area.

At the center of the nebula is the open star cluster NGC 2244 = (NGC 2239) (observation by John Flamsteed on February 17, 1690)[6], which makes the nebula glow.

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	6942368
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Rossetten-Nebula

Rossetten-Nebula

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Rossetten-Nebula

Rossetten-Nebula

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