Emission nebula | |
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Planetary nebula | |
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Observation data: J2000 epoch | |
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] |
The Soap Bubble Nebula, Ju 1 (also known as PN G075.5+01.7) is a planetary nebula in the constellation Cygnus, [4] near the Crescent Nebula (NGC 6888). The nebula derives its name from its symmetrical spherical shape which resembles a soap bubble. [5]
It was discovered by amateur 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 the International Astronomical Union by Keith B. Quattrocchi and Mel Helm who imaged PN G75.5+1.7 on July 17, 2008. [7] The nebula measures 260″ in angular diameter with a central star that has a J band magnitude of 19.45. [2]
Due to the faintness of the nebula and the fact that it is embedded in a diffuse nebula, it was difficult to discover. [8]
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