Wizard Nebula (NGC 7380) in narrowband (Patrick Hsieh)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: HD215286 · HD215588 · HD215605 · HD215771 · HD215806 · HD215835 · HD215907 · HD216248 · HD216448 · HD216533 · HD240047 · HD240068 · LBN 501 · LBN 502 · LBN 506 · LBN 511 · LBN 516 · LDN 1200 · NGC 7380 · PK107-00.1 · Sh2-142 · Sh2-143 · Sh2-147

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Wizard Nebula (NGC 7380) in narrowband

Revision title: revised color mapping

Powered byPixInsight

Wizard Nebula (NGC 7380) in narrowband

Revision title: revised color mapping

A test of the Sharpstar SCA260 with the 0.7x reducer from the Askar FRA400/500. Because of the limited back focus available in which to place the reducer, this is mounted to an Optec Leo focuser which replaces the stock focuser. Back spacing currently at 56mm, I think I need about another 0.5mm. I did swap out my usual 3nm NB filters for 8nm ones, as I calculate estimated 30% light loss with the 3nm, due to bandpass shift.
I was a little surprised that I was able to find guide stars with the OAG, given the small M48 exit of the reducer. I wish they made this with an M54 or M68 back rear thread (Askar - are you listening?) Overall quite pleased with the results, I love the tiny f/3.5 Ha stars!
NGC 73480 (the Wizard Nebula)
12x600s Ha, 14x600s Oiii, 12x600s Sii
SCA260 / 0.7x, Chroma 8nm HSO filters, ASI6200MM, AP Mach2GTO
Imaged from outside Las Vegas, NV, with about a 50% moon.
Processed in PixInsight and Photoshop, gotta give a major shout out to Russell Croman for NoiseXterminator and StarXterminator. Absolute game-changers

Original
Final
C

C

Title: revised color mapping

Description: Redid the color mapping, subtracting off some of the Oiii from the Ha and Sii channels so that the blue doesn't look quite as washed out.

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Status	Advanced success
Started	...
Astrometry.net job	6537220
PixInsight job	FDUGD3KGPTX4F2LZ4LE998JMSTD7DZEV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	22h47m20s.19
RA (top/left)	22h56m12s.48
RA (top/right)	22h38m33s.13
RA (bottom/right)	22h38m50s.45
RA (bottom/left)	22h55m44s.35

Dec (center)	+58°07′48″.5
Dec (top/left)	+58°51′30″.1
Dec (top/right)	+58°52′31″.5
Dec (bottom/right)	+57°21′59″.1
Dec (bottom/left)	+57°20′58″.7

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Wizard Nebula (NGC 7380) in narrowband

Revision title: revised color mapping

Wizard Nebula (NGC 7380) in narrowband

Revision title: revised color mapping

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Wizard Nebula (NGC 7380) in narrowband

Revision title: revised color mapping

Wizard Nebula (NGC 7380) in narrowband

Revision title: revised color mapping

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