| Emission nebula | |
|---|---|
| Planetary nebula | |
 | |
| Observation data: J2000epoch | |
| Right ascension | 20h 15m 22.2s[1] |
| Declination | +38° 02′ 58″[1] |
| Apparent dimensions (V) | 260″[2] |
| Constellation | Cygnus |
| Designations | PN G075.5+01.7, PN Ju 1[3] |
| See also:Lists of nebulae | |
TheSoap Bubble Nebula,Ju 1 (also known asPN G075.5+01.7) is aplanetary nebula in the constellationCygnus,[4] near theCrescent Nebula (NGC 6888). Thenebula derives its name from itssymmetrical spherical shape which resembles asoap bubble.[5]
It was discovered byamateur astronomer Dave Jurasevich using an Astro-Physics 160 mm refractor telescope with which he imaged the nebula on June 19, 2007 and on July 6, 2008.[6] The nebula was later independently noted and reported to theInternational Astronomical Union by Keith B. Quattrocchi and Mel Helm who imaged PN G75.5+1.7 on July 17, 2008.[7] The nebula measures260″ in angular diameter with a centralstar that has aJ band magnitude of 19.45.[2]
Due to the faintness of the nebula and the fact that it is embedded in adiffuse nebula, it was difficult to discover.[8]
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