NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR (Rob Foster)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: Crescent Nebula · HD192003 · HD192020 · HD192041 · HD192078 · HD192079 · HD192102 · HD192123 · HD192163 · HD192182 · HD192303 · HD192361 · HD192422 · HD192443 · HD192444 · HD192537 · HD227990 · HD228018 · HD228051 · HD228066 · HD228067 · HD228077 · HD228127 · HD228137 · HD228139 · HD228152 · HD228153 · HD228163 · HD228171 · HD228185 · And 57 more.

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NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR

Revision title: SPCC, Crowman Tools, and ABE instead of DBE

Powered byPixInsight

NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR

Revision title: SPCC, Crowman Tools, and ABE instead of DBE

This represents the longest integration to date, two long nights on an underwhelming target with an unmodified DSLR. At over 8 hours of integration, I am starting to understand the wisdom espoused by so many here that better to spend more time on a single target rather than inadequate time on multiple targets. More is more, meaning better SNR and therefore better starting material before processing. I look forward to getting my modified 80D back from Spencers soon so that I can start imaging with more Ha capture. I could also really use some guidance on what would be the best OSC cooled camera for an Esprit 100! I don't think I have enough clear skies in Ohio to shoot mono with filters.

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Title: SPCC, Crowman Tools, and ABE instead of DBE

Description: This was a challenge in part because it was shot using an unmodified DSLR, so the known H alpha signal surrounding the Crescent nebula was going to be difficult to develop. Similarly, using DBE was problematic (in my hands, at least) because finding actual background without any nebulosity was limited in the original FOV. ABE actually did a surprisingly good job given the complex nebulosity surrounding Crescent. The reprocessing then involved using SPCC, Russ Crowman's trio of tools, and selective use of GHS. Disappointed no hint of the soap bubble, but that will have to wait for a different camera.

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Status	Advanced success
Started	...
Astrometry.net job	6933943
PixInsight job	F2EO63D1H3B34ZTVY97LGTV9HSB1N3Y3
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h12m27s.249
RA (top/left)	20h13m28s.164
RA (top/right)	20h16m37s.438
RA (bottom/right)	20h11m27s.842
RA (bottom/left)	20h08m14s.448

Dec (center)	+38°21′51″.10
Dec (top/left)	+39°18′10″.28
Dec (top/right)	+37°52′03″.84
Dec (bottom/right)	+37°25′35″.13
Dec (bottom/left)	+38°51′17″.50

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NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR

Revision title: SPCC, Crowman Tools, and ABE instead of DBE

NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR

Revision title: SPCC, Crowman Tools, and ABE instead of DBE

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NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR

Revision title: SPCC, Crowman Tools, and ABE instead of DBE

NGC 6888, Crescent Nebula over 2 nights with unmodified DSLR

Revision title: SPCC, Crowman Tools, and ABE instead of DBE

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