| Emission nebula | |
|---|---|
| Planetary nebula | |
 The NGC planetary nebula, as seen by the Hubble Space Telescope | |
| Observation data: J2000 epoch | |
| Right ascension | 18h 25m 43s[1] |
| Declination | −23° 12′ 10″[1] |
| Distance | 6,523.13[2] ly (2000[2] pc) |
| Apparent magnitude (V) | 11.3[1] |
| Apparent dimensions (V) | 16.6″ × 15.5″[2] |
| Constellation | Sagittarius |
| Designations | PN G009.4-05.0: NGC 6629, PK 9-05.1, ARO 30, ESO 522-26, He 2- 399, Sa 2-335[2] |
NGC 6629 is a planetary nebula in the constellation of Sagittarius, located above the "Teapot". It is located approximately 2.0 kpc (~6,523 light years) from the Sun.[2] The object formed when a star ejected its outer layers during the late stages of its evolution. The remnant core of the star, a white dwarf, is emitting vast amounts of ultraviolet radiation that ionizes, or excites, the gas surrounding it, making the nebula visible to the human eye through a telescope. Over the course of around 10,000 years the white dwarf will cool down dramatically, diminishing the light of the nebula and making it only visible in a long-exposure photograph.[3] NGC 6629 was discovered by William Herschel in 1868.[2]
On June 26, 2029, the planetary nebula will be occulted by the Moon during a total lunar eclise, over the eastern Pacific and South America.[4]: 161
See also
[edit]
- List of planetary nebulae
- Messier object
- New General Catalogue
- List of NGC objects
- NGC 6565
- Ring Nebula
Notes
[edit]References
[edit]- ^ a b c "NGC 6629 - Planetary Nebula in Sagittarius". TheSkyLive. Retrieved 26 December 2025.
- ^ a b c d e f "Planetary Nebula NGC 6629". Deep Sky Corner. 2021. Retrieved 26 December 2025.
- ^ "The long goodbye of a dying star – Astronomy Now".
- ^ Meeus, Jan (2002). "Occultations of deep-sky objects during a total lunar eclipse". More Mathematical Astronomy Morsels (PDF). pp. 157–162. ISBN 0943396743. Archived from the original (PDF) on 2025-04-05. Retrieved 2025-02-21.
Bibliography
[edit]- Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875.
Gaia DR3 record for this source at VizieR.
- Coe, Steven R. (2007). Nebulae and how to observe them. Astronomers' observing guides. Springer. p. 111. ISBN 978-1-84628-482-3.
- Crossen, Craig; Rhemann, Gerald (2004). Sky Vistas: Astronomy for Binoculars and Richest-field Telescopes. Springer. p. 261. ISBN 978-3-211-00851-5.
- Steinicke, Wolfgang (2010). Observing and Cataloguing Nebulae and Star Clusters: From Herschel to Dreyer's New General Catalogue. Cambridge University Press. pp. 42–43. ISBN 978-0-521-19267-5.
External links
[edit]
- WorldWide Telescope
- NASA/IPAC Extragalactic Database (NED): NGC 6629
- NGC 6629 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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