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Soap Bubble Nebula

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Soap Bubble Nebula
Emission nebula
Planetary nebula
Observation data: J2000 epoch
Right ascension20h 15m 22.2s[1]
Declination+38° 02′ 58″[1]
Apparent dimensions (V)260[2]
DesignationsPN G075.5+01.7, PN Ju 1[3]
See also: Lists of nebulae

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, this made the diffuse nebula hard to discover.[8]


  1. ^ a b Jurasevich, D. M. (July 2009). Green, D. W. E. (ed.). "Pn G75.5+1.7". Central Bureau Electronic Telegrams. 1876 (1): 1. Bibcode:2009CBET.1876....1J.
  2. ^ a b Acker, A.; et al. (October 2012). "Discovery of New Faint Northern Galactic Planetary Nebulae". Revista Mexicana de Astronomía y Astrofísica. 48: 223–233. arXiv:1206.2477. Bibcode:2012RMxAA..48..223A.
  3. ^ "PN Ju 1". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2022-01-24.{{cite web}}: CS1 maint: postscript (link)
  4. ^ "PN G75.5+1.7 in Cygnus". Capella Observatory. Retrieved 2022-01-24.
  5. ^ "Soap Bubble Nebula (PN G75.5+1.7) – Constellation Guide". www.constellation-guide.com. Retrieved 2024-05-21.
  6. ^ Jurasevic, D. "A New Planetary Nebula Discovered from the Mount Wilson Observatory". starimager.com. Retrieved 2022-01-24.
  7. ^ Quattrocchi, K. B.; Helm, M. (July 2009). Green, D. W. E. (ed.). "Pn G75.5+1.7". Central Bureau Electronic Telegrams. 1876 (2): 2. Bibcode:2009CBET.1876....2Q.
  8. ^ info@noirlab.edu. "Soap Bubble Nebula, PN G75.5+1.7". www.noirlab.edu. Retrieved 2024-05-21.