LDN 889 & IC1318 (Astro-TAPAS)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg)

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LDN 889 & IC1318

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LDN 889 & IC1318

LDN 889 in Gamma Cygni Nebula (IC1318)

The Gamma Cygni Nebula or IC 1318, is a diffuse emission nebula that can be seen around Sadr (Gamma Cygni), the nebula is at 4,900 light years.

The Gamma Cygni Nebula is considered an emission nebula because it is ionized by the radiation of the nearby stars and it emits visible light as a result. The visible portion of the H II region stretches over an area more than 100 light years across. The nebula is illuminated by an O9-class star which is visually obscured by interstellar material.

The Gamma Cygni Nebula has three distinct parts, designated as IC 1318 A, B and C. The dark cloud about 20 light years thick that divides IC 1318 B and C is a dark nebula known as LDN 889. It is physically related to the emission nebula and the surrounding molecular cloud complex. The dark dust lane is responsible for the nebula’s distinctive shape, resembling that of a butterfly, which is why IC 1318 is sometimes also known as the Butterfly Nebula. The components IC 1318 B and C are not separate parts of the nebula, but a single cloud visually separated by LDN 889.

Entre Encinas y Estrellas (e-EyE)

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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	Basic success
Started	...
Astrometry.net job	3013869
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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LDN 889 & IC1318

LDN 889 & IC1318

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Image Index:

Contribution Index (beta):

LDN 889 & IC1318

LDN 889 & IC1318

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Description

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