NGC 2170 (John Bozeman)

Celestial hemisphere: Southern · Constellation: Monoceros (Mon) · Contains: NGC 2170 · NGC 2182

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NGC 2170

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NGC 2170

NGC 2170 is a dusty reflection nebula and stellar nursery that formed about 6 to 10 million years ago, located at the edge of the elliptically shaped, giant star-forming molecular cloud Monoceros R2 (Mon R2), some 2,700 light-years away in the constellation of Monoceros. The bluish areas are reflection nebulae, so-named because they reflect the light of nearby hot stars. The dust particle size in these areas preferentially reflects blue light, similar to cigarette and other kinds of smoke. The red areas are emission nebulae, and shine because ultraviolet light from nearby stars excites hydrogen and other gas atoms in the nebula, which then emit light of their own in specific colors. Finally, what looks a bit like black ink spilled across the image are dark absorption nebulae, and are only seen because of the light that they block. In other words, the dark nebula is seen in silhouette. There are tell-tale signs of ongoing star formation and massive young stars mostly hidden behind the thick interstellar dust, which strongly absorbs ultraviolet and visible light. Energetic winds and intense radiation from these hot young stars reshape their natal interstellar clouds.

Composite image of DSS-II data (70%) and WISE IR data (30%).

2nd Digital Sky Survey data:
Red and Blue plates.

Wide-field Infrared Survey Explorer (WISE) IR Data
Color Mapped:
Red - 22 micron IR
Green - 12 micron IR
Cyan - 4.6 micron IR
Blue - 3.4 micron IR

Processed with Registar, GraXpert, PixInsight and Photoshop 2023.

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	8030431
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 2170

NGC 2170

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Image Index:

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NGC 2170

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