NGC7023 Iris Nebula (Misi Róbert)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Iris Nebula · NGC 7023

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NGC7023 Iris Nebula

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NGC7023 Iris Nebula

The Iris Nebula NGC7023, which got its name because of its shape and color reminiscent of the blue Petal flower, is a reflection nebula that can be seen from a distance of 1300 light-years in the constellation Cepheus, with a bright star in the middle that illuminates an area of several light-years in a bluish color, caused by the fact that the central one is massive, the light of a hot star is reflected from the many dust particles left over from its formation. The dark dust cloud in the photo, which is much larger than the blue part illuminated by the star, consists of very small solid particles and gases. The density of the dark nebula is very small, yet due to its vast extent it is opaque in the range of visible light, so it obscures the light of stars and other objects behind it. The photo was taken with a total exposure time of 30 hours over several days (months)!

Gothard Group (Magyarok/Hungarians)

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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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Top pick nominations

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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
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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
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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	9150358
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC7023 Iris Nebula

NGC7023 Iris Nebula

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NGC7023 Iris Nebula

NGC7023 Iris Nebula

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