The Soap Bubble Nebula (James E.)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: HD228483 · HD228499 · HD228521 · HD228522 · HD228543 · HD228549 · HD228551 · HD228575 · HD228599 · HD228618 · HD228623 · HD228666 · HD228690 · LBN 206

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The Soap Bubble Nebula

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The Soap Bubble Nebula

The Soap Bubble Nebula (PN G75.5+1.7) located in Cygnus near the Crescent Nebula was discovered and reported by amateur astronomer Dave Jurasevich based on H-alpha images taken in June 2007 and July 2008 using an A-P 160EDF APO refractor. The gaseous shell is in the shape of a slightly elongated ellipse with its major axis at position angle 5 degrees. The nebula measures 260" in angular diameter with a central star that has a J band (infrared) magnitude of 19.45.
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This faint planetary was invisible in the individual three-minute subs. A final stack showed it was almost equally "bright" in Ha and OIII. SII data ("background" nebula, no planetary) actually displayed more structure than the Ha background and was used to provide additional color palette options. Several SHO color palettes were generated, and the final combined image is a result of PixelMath mixing of these various color palettes. I found the blue central star readily visible in the final combined SHO stack, but not in my short 20-minute RGB stars stack, so a combine of SHO stars and RGB stars was required to bring out the faint central star.

Imaged over several nights: May 9-11, 17, 29; Jun 4 and 7, 2022.

Narrowband imaging
ZWO ASI2600MM Pro
The refractors!
NOVAC
N.I.N.A. Users
"Simply Stellarvue"

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Status	Advanced success
Started	...
Astrometry.net job	5869232
PixInsight job	MDVENLD78YJ1GNR8DT58N34B3UBCDX48
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h15m22s.855
RA (top/left)	20h14m03s.143
RA (top/right)	20h16m22s.865
RA (bottom/right)	20h16m43s.504
RA (bottom/left)	20h14m22s.415

Dec (center)	+38°03′00″.20
Dec (top/left)	+37°43′22″.25
Dec (top/right)	+37°40′47″.84
Dec (bottom/right)	+38°22′35″.96
Dec (bottom/left)	+38°25′10″.69

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