The Phantom Of The Opera Nebula (Sh2-173) (estabrook)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 12 Cas · HD1239 · HD1383 · HD1400 · HD1544 · HD1613 · HD1697 · HD1743 · LBN 592 · LBN 593 · LDN 1282 · LDN 1283 · NGC 103 · Sh2-173 · The star 12 Cas

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The Phantom Of The Opera Nebula (Sh2-173)

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The Phantom Of The Opera Nebula (Sh2-173)

The Phantom of the Opera Nebula (SH2-173). Over two cool October nights, I inaugurated an Optolong L-eXtreme filter and took aim at the fainter-than-expected Phantom of the Opera Nebula. Setting aside the hour or so of broadband stars I added after the fact, this image integrates about 13 hours of 5-minute exposures during moonlit nights; and it could really use more. I'm certainly pleased with the way the L-eXtreme filter minimized moonlight interference, but less pleased with the star halos and some stubborn gradients that I had to work around. Still, this was a fun project--and a perfect spooky Halloween target.

Final
Original
B

ZWO ASIAIR PRO USERS
NOVAC
The OSC Club (One Shot Camera)
ZWO ASI183/QHY183
Light Polluted skies
Virginia Astronomers and Astrophotographers

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Status	Advanced success
Started	...
Astrometry.net job	8555005
PixInsight job	LZOXGYNRITWTBT3Y4TB92CZRZ0OF2JBB
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h22m19s.404
RA (top/left)	00h18m01s.358
RA (top/right)	00h15m47s.678
RA (bottom/right)	00h26m26s.957
RA (bottom/left)	00h28m56s.549

Dec (center)	+61°44′29″.12
Dec (top/left)	+62°22′20″.35
Dec (top/right)	+61°30′59″.99
Dec (bottom/right)	+61°06′08″.79
Dec (bottom/left)	+61°56′46″.81

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The Phantom Of The Opera Nebula (Sh2-173)

The Phantom Of The Opera Nebula (Sh2-173)

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The Phantom Of The Opera Nebula (Sh2-173)

The Phantom Of The Opera Nebula (Sh2-173)

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