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Contains:  NGC 6543, IC 4677
Getting plate-solving status, please wait...

Technical card

Resolution: 2249x1829

Dates:Sept. 4, 2019

Astrodon Tru-Balance LRGB E-Series Gen 2 Blue: 24x300" bin 1x1
Astrodon Tru-Balance LRGB E-Series Gen 2 Green: 24x300" bin 1x1
Astrodon Ha 3nm: 21x300" bin 1x1
Astrodon Ha 3nm: 21x1200" bin 2x2
Astrodon OIII 3nm: 21x300" bin 1x1
Astrodon OIII 3nm: 21x1200" bin 2x2
Astrodon Tru-Balance LRGB E-Series Gen 2 Red: 24x300" bin 1x1

Integration: 23.5 hours

Avg. Moon age: 5.72 days

Avg. Moon phase: 32.64% job: 2899257

RA center: 269.636 degrees

DEC center: 66.633 degrees

Pixel scale: 0.744 arcsec/pixel

Orientation: 269.428 degrees

Field radius: 0.299 degrees

Locations: E-EyE, Fregenal de la Sierra, Extremadura, Spain

Data source: Own remote observatory

Remote source: e-EyE Extremadura


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



Steve Milne
License: None (All rights reserved)

Sky plot

Sky plot


Cat's Eye Nebula in Draco, 


            Steve Milne