NGC 6543 - The Cat's Eye Nebula (Indy Backyard Astro)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: HD164963 · IC 4677 · NGC 6552

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NGC 6543 - The Cat's Eye Nebula

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NGC 6543 - The Cat's Eye Nebula

NGC 6543, commonly known as the Cat's Eye Nebula, is a striking example of a planetary nebula located in the constellation of Draco, approximately 3,000 light-years away from Earth. Despite its name, it has nothing to do with felines but is named after its resemblance to the glowing eye of a cat when viewed through a telescope.This nebula is formed from the outer layers of a dying star that has reached the end of its life cycle. Once a star similar in size to our Sun exhausts its nuclear fuel, it undergoes a series of transformations before ultimately shedding its outer layers and leaving behind a hot, dense core known as a white dwarf. The expelled layers form a colorful shell of gas and dust, creating the mesmerizing structure we observe as the Cat's Eye Nebula.One of the most distinctive features of NGC 6543 is its intricate and symmetrical appearance. It boasts concentric rings of gas expanding outward from the central star, giving it the appearance of a cosmic bullseye. The central star itself is exceptionally hot, with temperatures reaching up to 100,000 degrees Celsius (180,000 degrees Fahrenheit).

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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	Advanced success
Started	...
Astrometry.net job	9536852
PixInsight job	7ZOQ9W1MTXHY65ZM6P742EB4VDD0BZ9C
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h58m38s.873
RA (top/left)	17h55m55s.610
RA (top/right)	18h01m16s.385
RA (bottom/right)	18h01m24s.335
RA (bottom/left)	17h55m59s.263

Dec (center)	+66°38′14″.86
Dec (top/left)	+66°28′23″.59
Dec (top/right)	+66°27′30″.61
Dec (bottom/right)	+66°47′50″.56
Dec (bottom/left)	+66°48′44″.42

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NGC 6543 - The Cat's Eye Nebula

NGC 6543 - The Cat's Eye Nebula

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Contribution Index (beta):

NGC 6543 - The Cat's Eye Nebula

NGC 6543 - The Cat's Eye Nebula

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