NGC 6543 Cats Eye Nebula HOO-RGB (Eric Smith)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: Cat's Eye Nebula · HD164963 · IC 4677 · NGC 6543

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NGC 6543 Cats Eye Nebula HOO-RGB

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NGC 6543 Cats Eye Nebula HOO-RGB

A really challenging target to capture and edit as a single image.

Taken over multiple nights in May and June 2024 as part of a a multi target session to capture at the best elevation for each target. I managed to end up with over 25 hours of data to combine.

The dynamic range is probably as high or higher than M42 and the trapezium stars. However all the subframes were taken at 180 seconds and stretched using 1,000 iterations of Masked Stretch in PixInsight. This allowed me to edit the entire image as a single HDR image without the need to merge short exposures and long exposures.

The HOO and RGB versions of the image were blended together using the "Image Blend" script and the stars were extracted from the RGB image and merged back into the combined HOO-RGB image.

As usual, many thanks for looking!

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Status	Advanced success
Started	...
Astrometry.net job	10080691
PixInsight job	S4XZU8DN2W5RN8U0UPWL4XKMQ2YNP5YM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h58m30s.105
RA (top/left)	17h59m47s.786
RA (top/right)	17h59m48s.346
RA (bottom/right)	17h57m11s.265
RA (bottom/left)	17h57m13s.161

Dec (center)	+66°38′01″.32
Dec (top/left)	+66°26′27″.80
Dec (top/right)	+66°49′36″.48
Dec (bottom/right)	+66°49′33″.72
Dec (bottom/left)	+66°26′25″.23

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NGC 6543 Cats Eye Nebula HOO-RGB

NGC 6543 Cats Eye Nebula HOO-RGB

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NGC 6543 Cats Eye Nebula HOO-RGB

NGC 6543 Cats Eye Nebula HOO-RGB

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