Emission nebula | |
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Planetary nebula | |
An HST picture of nebula NGC 6886. Credit: ESA/Hubble | |
Observation data: J2000 epoch | |
Right ascension | 20 12 42.83 |
Declination | +19° 59′ 22.6″ |
Distance | 4.6 ± 1.0 kiloparsec (15.0 ± 3.3 kly) ly |
Apparent magnitude (V) | 11.8 |
Constellation | Sagitta |
Designations | PK 060.1-07.7, Hen 2-458 |
See also: Lists of nebulae |
NGC 6886 is a planetary nebula in the constellation Sagitta. It was discovered by Ralph Copeland on September 17, 1884. It is 4.6 ± 1.0 kiloparsec (15.0 ± 3.3 kly) distant from Earth, and is composed of a hot central post-AGB star that has 55% of the Sun's mass yet 2700 ± 850 its luminosity, with a surface temperature of 142,000 K. The planetary nebula is thought to have been expanding for between 1280 and 1600 years.
References
- ^ "NGC 6886". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 August 2015.
- Pottasch, S. R.; Surendiranath, R. (March 2005). "Abundances in planetary nebulae: NGC 6886". Astronomy and Astrophysics. 432 (1): 139–148. Bibcode:2005A&A...432..139P. CiteSeerX 10.1.1.669.8581. doi:10.1051/0004-6361:20042006. S2CID 124871522.
- Seligman, Courtney. "NGC Objects: NGC 6850 - 6899". Retrieved 22 August 2015.
- Schönberner, D.; Balick, B.; Jacob, R. (2018). "Expansion patterns and parallaxes for planetary nebulae". Astronomy & Astrophysics. 609: A126. Bibcode:2018A&A...609A.126S. doi:10.1051/0004-6361/201731788.
External links
- Media related to NGC 6886 at Wikimedia Commons
Astronomical catalogs | |
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