IC 1805 - 'full-bodied' (Tom Gray)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: HD14695 · HD14794 · HD14817 · HD15069 · HD15238 · HD15239 · HD15250 · HD15382 · HD15522 · HD15557 · HD15558 · HD15570 · HD15629 · HD15785 · HD15851 · HD16183 · HD16218 · HD16349 · HD16410 · HD16429 · IC 1795 · IC 1805 · LBN 645 · LBN 646 · LBN 647 · LBN 648 · LBN 650 · LBN 654 · LBN 655 · LBN 656 · And 18 more.

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IC 1805 - 'full-bodied'

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IC 1805 - 'full-bodied'

This is a hybrid version of my last image, using 60m luminance data from this, together with 30m new RGB data.

I also collected 150m new luminance data but found, despite good focus, that the image was soft, with strong halos around the brighter stars, Surprising given the L-eNhance filter blocks UV/IR and usually results in tighter stars; in contrast, the 30m RGB data was much sharper. I can only assume this is due to a problem with back focus and poor alignment of my optical train, and/or some internal reflections due to the bright moon. Any other thoughts / solutions very welcome.

A fairly aggressive workflow in Startools to enhance the contrast and colour in the nebulosity, and to try and improve the stars (with limited success). Nevertheless it is 'full-bodied' if still rather half-hearted'. I'm looking forward to trying this again when the moon is out of the sky.

Altair Astro 183 M/C Hypercams
Camera Lens Astrophotography
UK Astro-Imaging
Optolong L-eNhance filter

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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.

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Status	Advanced success
Started	...
Astrometry.net job	3981360
PixInsight job	K6PPS0WNFFMPYJBVIIWPB5F4VM3LU668
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	02h32m50s.32
RA (top/left)	02h40m29s.70
RA (top/right)	02h41m17s.68
RA (bottom/right)	02h24m33s.28
RA (bottom/left)	02h25m04s.33

Dec (center)	+61°36′02″.3
Dec (top/left)	+60°18′16″.4
Dec (top/right)	+62°51′38″.2
Dec (bottom/right)	+62°52′27″.5
Dec (bottom/left)	+60°19′04″.6

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IC 1805 - 'full-bodied'

IC 1805 - 'full-bodied'

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IC 1805 - 'full-bodied'

IC 1805 - 'full-bodied'

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