IC 1795 - Fishhead Nebula (Darius Kopriva)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: IC 1795 · LBN 645 · LBN 646 · LDN 1359 · NGC 896

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IC 1795 - Fishhead Nebula

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IC 1795 - Fishhead Nebula

IC 1795 - The Fish Head Nebula, also known as the Northern Bear Nebula, is part of a huge star forming system of gas and dust located along the Perseus spiral arm of our Milky Way galaxy. The nebula is located in the constellation Cassiopeia approximately 6000 light-years from the Earth and is adjacent to the much larger Heart Nebula. The brighter region of IC 1795 is designated NGC 896 and is the home to many massive, young, stars. These stars radiate copious amounts of ultraviolet light. This UV radiation excites the surrounding gas and causes it shine much the same way as a neon light emits its colorful hues.

The above image was assembled from exposures made through Sulfur II, Hydrogen Alpha, and Oxygen III filters. These exposures were combined with Sulfur II mapped to the red channel, Hydrogen Alpha mapped to the green channel, and Oxygen III mapped to the blue channel. This mapping is known as false color and is common with the many spectacular Hubble Space Telescope images.

Southern Hemisphere Astro

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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
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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
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Star trails
Northern lights
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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	5818829
PixInsight job	1UASNBONGJDKA6QHY78JG5LAZLWA2M0L
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h25m29s.614
RA (top/left)	02h23m30s.468
RA (top/right)	02h23m35s.923
RA (bottom/right)	02h27m26s.442
RA (bottom/left)	02h27m25s.542

Dec (center)	+62°00′59″.99
Dec (top/left)	+62°18′51″.53
Dec (top/right)	+61°42′45″.17
Dec (bottom/right)	+61°43′01″.43
Dec (bottom/left)	+62°19′08″.81

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IC 1795 - Fishhead Nebula

IC 1795 - Fishhead Nebula

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IC 1795 - Fishhead Nebula

IC 1795 - Fishhead Nebula

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