NGC 2237: nébuleuse de la rosette en HOO (sanquer)

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

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NGC 2237: nébuleuse de la rosette en HOO

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NGC 2237: nébuleuse de la rosette en HOO

La nébuleuse de la Rosette est une vaste région HII (hydrogène ionisé) située à quelque 4700 années-lumière du système solaire en direction de la constellation de la Licorne. NGC 2237 s’étend sur 130 années-lumière et été découvert par l'astronome américain Lewis Swift en 1865.
La nébuleuse de la Rosette est une « pouponnière » d’étoiles très active, où se sont déjà formées de nombreuses étoiles. Au centre de celle-ci, l’amas NGC 2244 est composé d’une cinquantaine d’étoiles très jeunes (8 millions d’années) et majoritairement de type O : il s’agit d’étoiles géantes, bleues et extrêmement lumineuses. La plus massive d’entre elles, HD46150 (située au centre de la zone centrale), est ainsi 60 fois plus massive que notre Soleil et 450 000 fois plus lumineuse.

Cette image est une composition HOO. L'hydrogène en rouge et l'oxygène en bleu.
temps d'expo : 264X90sec (6h36) sur 3 nuits differentes avec un filtre dual band Ha/OIII

https://fr.wikipedia.org/wiki/N%C3%A9buleuse_de_la_Rosette
https://millenniumphoton.com/portfolios/ngc-2237-nebuleuse-de-la-rosette/

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
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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
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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	7197394
PixInsight job	J1X74N9DPV58RUZS3VOXUKJOV4G7I7OY
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h31m46s.20
RA (top/left)	06h35m39s.81
RA (top/right)	06h26m30s.19
RA (bottom/right)	06h27m52s.59
RA (bottom/left)	06h37m01s.31

Dec (center)	+04°57′35″.3
Dec (top/left)	+05°56′35″.1
Dec (top/right)	+05°23′58″.8
Dec (bottom/right)	+03°58′29″.5
Dec (bottom/left)	+04°31′03″.4

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NGC 2237: nébuleuse de la rosette en HOO

NGC 2237: nébuleuse de la rosette en HOO

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NGC 2237: nébuleuse de la rosette en HOO

NGC 2237: nébuleuse de la rosette en HOO

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