NGC 6543 (Dark Rift Astro)

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

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NGC 6543

Link: https://www.darkriftastro.com/astro_photos/2022-06-20-NGC6543.html

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NGC 6543

Link: https://www.darkriftastro.com/astro_photos/2022-06-20-NGC6543.html

This is NGC 6543, the Cat’s Eye Nebula. It is a planetary nebula (expanding, glowing ionized gas ejected from red giant stars) located within the constellation Draco. The nebula is surrounded by a halo that appears as a hexagon, which are gasses ejected by the star at the center. This is a difficult target to image and process because of the brightness of the core and the dimness of the surrounding halo.

I imagined it for three nights, two nights capturing H-alpha and OIII, and one night of broadband RGB. Individual sub-exposures were 2 minutes and 5 minutes each. The total exposure time is over 11 hours. The core and the halo are represented in Ha and OIII. Broadband RGB color stars have been superimposed.

Original
Final
C

Affinity Photo for Astrophotography users
Duo-band, Tri-band, and Quad-band Imaging
ZWO ASI 2600MC PRO
The OSC Club (One Shot Camera)
Imaged with N.I.N.A.

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	Distinct awarded users	Total awarded images
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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
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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
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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	5889130
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 6543

NGC 6543

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NGC 6543

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