NGC7023 IRIS NEBULA (Edward Overstreet)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD200775 · Iris Nebula · LBN 487 · LDN 1174 · NGC 7023

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NGC7023 IRIS NEBULA

Link: https://www.youtube.com/@nightskyimaging/streams

Link to TIFF/FITS: http://www.nightskyimager.com

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NGC7023 IRIS NEBULA

Link: https://www.youtube.com/@nightskyimaging/streams

Link to TIFF/FITS: http://www.nightskyimager.com

NGC 7023, also known as the Iris Nebula, is a reflection nebula located in the constellation Cepheus. It is a beautiful and intricate celestial object that showcases the interplay between gas, dust, and starlight.The Iris Nebula gets its name from its appearance, which resembles the delicate petals of a flower, specifically an iris. It is situated approximately 1,300 light-years away from Earth and spans a region of about six light-years across.The nebula is primarily illuminated by a central young, hot star named HD 200775. The intense ultraviolet radiation emitted by this star causes the surrounding gas and dust to scatter and reflect the starlight, creating the characteristic blue glow of a reflection nebula.Within the Iris Nebula, there are dark lanes of dust that intricately weave through the illuminated gas. These dark regions create a stark contrast against the bright background and give the nebula its distinctive shape. The dust lanes are composed of tiny particles that absorb and scatter the shorter-wavelength blue light more effectively than the longer-wavelength red light, resulting in the blue coloration.

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	7966485
PixInsight job	X9OLOVGNNVKCH140Y8W8EFDSPV42W6EA
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h01m35s.606
RA (top/left)	21h03m59s.999
RA (top/right)	21h02m04s.649
RA (bottom/right)	20h59m10s.504
RA (bottom/left)	21h01m07s.208

Dec (center)	+68°09′41″.53
Dec (top/left)	+68°05′40″.67
Dec (top/right)	+68°23′26″.82
Dec (bottom/right)	+68°13′34″.11
Dec (bottom/left)	+67°55′56″.70

Image Index:

Contribution Index (beta):

NGC7023 IRIS NEBULA

NGC7023 IRIS NEBULA

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Image Index:

Contribution Index (beta):

NGC7023 IRIS NEBULA

NGC7023 IRIS NEBULA

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