Rosette, H-Alpha (Jared Willson)

Celestial hemisphere: Northern · Constellation: Monoceros (Mon) · Contains: 12 Mon · LBN 943 · LBN 948 · LBN 949 · NGC 2237 · NGC 2238 · NGC 2239 · NGC 2244 · NGC 2246 · NGC 2252 · Rosette A · Rosette B · Rosette Nebula · Sh2-275 · The star 12Mon

Powered byPixInsight

Rosette, H-Alpha

Powered byPixInsight

Rosette, H-Alpha

The Rosette Nebula, also known as Caldwell 49 and as NGC 2237, is located at a distance of roughly 1,600 parsecs or 5,200 light years in the constellation Monoceros. It is approximately 130 ly in diameter. NGC 2244 is the open cluster residing in the core of the Rosette, and the hot, young O-type stars within NGC 2244 is the source of the UV light making the Rosette fluoresce. The nebula has an estimated mass of 10,000 suns. The hollow area at the core of the 'donut' of the Rosette is caused by radiation pressure from, primarily, two of the O-type stars, HD 46223 and HD 46150. The radiation from these stars is clearing out core of the nebula.

This image was obtained over the course of six nights in December 2021 while trying to avoid clouds and high winds. Since the moon was full during this imaging run, I used a hydrogen alpha filter to block most of the light pollution. The Rosette covers about 1.5 degrees of sky, so I needed a two panel mosaic to capture the entire field of view presented here.

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	Advanced success
Started	...
Astrometry.net job	5342239
PixInsight job	N9PNOQMQECR1LTTX6XEWMZ0D594D1US6
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h31m59s.99
RA (top/left)	06h27m41s.25
RA (top/right)	06h27m48s.93
RA (bottom/right)	06h36m17s.58
RA (bottom/left)	06h36m11s.15

Dec (center)	+04°58′26″.4
Dec (top/left)	+05°48′00″.10
Dec (top/right)	+04°06′36″.3
Dec (bottom/right)	+04°08′45″.3
Dec (bottom/left)	+05°50′13″.2

Image Index:

Contribution Index (beta):

Rosette, H-Alpha

Rosette, H-Alpha

Equipment

Acquisition details

Description

Comments

Acquired at

Sky plot

Histogram

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

Rosette, H-Alpha

Rosette, H-Alpha

Equipment

Acquisition details

Description

Comments

Acquired at

Sky plot

Histogram

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information