NGC6820 (Chris Kagy)

Celestial hemisphere: Northern · Constellation: Vulpecula (Vul) · Contains: NGC 6823

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NGC6820

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NGC6820

Many folks have seen the famous Pillars of Creation photo from the Hubble Space Telescope that shows star forming regions in the Eagle Nebula. There are lots of these regions all over the sky, though.

For example, NGC 6820 (this image), is another emission nebula in the constellation Vulpecula, with a prominent star forming pillar. This nebula is wrapped around a young star cluster, and is about 6000 light years from Earth. The two dark lanes arching up to the left and right from the center bottom of the nebula are dust that is thick enough to block the light from the nebula.

This photo is a combination of three colors of light invisible to our eyes - Hydrogen Alpha (Ha), Oxygen III (OIII), and Sulpher II (SII). In 3 minute increments, I took about 4 hours of Ha photos, 7.5 hours of OIII photos, and 5 hours of SII photos and used some specialized software to combine them all into a single image which I further tweaked in Photoshop

Original
Final
B

NOVAC

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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	4902929
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC6820

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NGC6820

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