Cat's Eye Nebula in Draco (Steve Milne)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: IC 4677 · NGC 6543

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Cat's Eye Nebula in Draco

Link: https://stevemilne.smugmug.com/Photos/Sky/Nebulae/i-qwftG9j

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Cat's Eye Nebula in Draco

Link: https://stevemilne.smugmug.com/Photos/Sky/Nebulae/i-qwftG9j

The Cat's Eye Nebula (NGC 6543) is a planetary nebula around 3,000 light years away in the constellation of Draco. It was first observed by William Herschel on 15 February 1786.

The planetary nebula gets its name from the feature in the very centre of this image which is thought to bear a resemblance to a cat's eye.

NGC 6543 was photographed between 8 June and 4 September 2019 from an imaging rig in Spain that is privately-owned and remotely-operated by Barry Wilson and me.

This is a bicolour image consisting of data shot through Ha and OIII filters. In addition RGB data was captured for star colour.

Capture details are as follows:

Telescope: TEC140

Camera: QSI 690

Filters: Astrodon

Mount: 10 Micron GM2000HPS

Ha: 21 x 1200s (bin 2)

Ha: 21 x 300s (bin1)

OIII: 21 x 1200s (bin 2)

OIII: 21 x 300s (bin 1)

Red: 24 x 300s (bin 1)

Green: 24 x 300s (bin 1)

Blue: 24 x 300s (bin 1)

A total of 23 hours and 30 minutes exposure.

Data capture: Steve Milne & Barry Wilson

Image Processing: Steve Milne

The refractors!
Planetary Nebulae
Entre Encinas y Estrellas (e-EyE)

Please note: The following tables are updated every 24 hours.

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
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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
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Amateur hosting facility
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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	2899257
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Cat's Eye Nebula in Draco

Cat's Eye Nebula in Draco

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Cat's Eye Nebula in Draco

Cat's Eye Nebula in Draco

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