NGC 6888 Crescent Nebula

Bi-color technique

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Soap bubble nebula

From Wikipedia, the free encyclopedia
Soap bubble nebula
Observation data
(Epoch J2000)
Right ascension 20h 15m 26s
Declination +38 02' 25"
Apparent dimensions (V) 260"
Constellation Cygnus
Physical characteristics
Other designations PN G75.5+1.7
See also: Planetary nebula, Lists of nebulae

The Soap bubble nebula, or PN G75.5+1.7, is a planetary nebula in the constellation Cygnus[1], near the Crescent Nebula (NGC 6888)[2]. It was discovered by amateur astronomer Dave Jurasevich using a 160 mm refractor telescope who imaged the nebula on June 19th 2007 and on July 6th 2008. [3] The nebula was later independently noted and reported to the International Astronomical Union by Keith. B. Quattrocchi and Mel Helm who imaged PN G75.5+1.7 on July 17th 2008[4]

 

 

Telescope : William optics FLT 98 CF

Camera : Starlight Xpress SXVR H35 Full frame

Filters : H@ - OIII (H@ = Red , OIII = Blue , H@/OIII = sGreen)

Mount : Vixen GP-DX

Guiding : 70 mm Vixen guidingscope and Meade DSI 1 using PHD

Exposure : 6 x 15 min subs H@ - OIII - SII (1 dark for BPM and 100 Biasframes)

Processing : Nebulosity and PS , CS 2 

Location : Wateren

Date : 10-10-2010

Conditions : perfect for dutch skies but humidity around 80%

 

A different processing result

SII = RED , H@ = GREEN , OIII = BLUE