SL17 (Wolf Nebula ) [HaRGB] (Dean Carr)

Celestial hemisphere: Southern · Constellation: Scorpius (Sco) · Contains: HD151727 · HD151818 · HD151892 · HD151966 · HD152077 · HD152161 · HD152335 · HD326231 · HD326246 · HD326247 · HD326249 · HD326268 · HD326269 · HD326398 · HD326402 · HD326403 · HD326404 · HD326405 · HD326407 · HD326409 · HD326410 · HD326411 · HD326412 · HD326414 · HD326424 · HD326426 · HD326427 · HD326428 · HD326431 · HD326432 · And 12 more.

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SL17 (Wolf Nebula ) [HaRGB]

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SL17 (Wolf Nebula ) [HaRGB]

The Wolf Nebula, cataloged as SL17 (Sandqvist and Lindroos 17), is an infrequently-imaged dark nebula seen in the constellation of Scorpius. The nebula, sometimes also called the 'Fenrir’ Nebula from Norse mythology, is named as such to reflect its remarkable resemblance to a wolf.

Dark nebulae such as SL17 are dense molecular clouds, including interstellar dust and gas, that can obscure light from the background stars and otherwise brighter regions of space. The red areas surrounding SL17 are emission nebulae, including ionized hydrogen and many stars (RCW113, aka Gum 55).

This HaRGB image is based on unguided acquisition of RGB (137x 5 min) and Ha (50x10min) data. The picture was processed in PixInsight. The Ha images were used to enhance both the colour and luminance of the RGB data in order to highlight the features of SL17 and its surroundings.

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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	8100869
PixInsight job	KB927TPFT57UYAQE0XK8IMBJM6OUEPP1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h53m13s.127
RA (top/left)	16h51m12s.335
RA (top/right)	16h51m02s.990
RA (bottom/right)	16h55m16s.810
RA (bottom/left)	16h55m21s.180

Dec (center)	-43°23′57″.16
Dec (top/left)	-42°52′23″.27
Dec (top/right)	-43°54′25″.70
Dec (bottom/right)	-43°55′23″.100
Dec (bottom/left)	-42°53′19″.64

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SL17 (Wolf Nebula ) [HaRGB]

SL17 (Wolf Nebula ) [HaRGB]

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Image Index:

Contribution Index (beta):

SL17 (Wolf Nebula ) [HaRGB]

SL17 (Wolf Nebula ) [HaRGB]

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

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