NGC 6729
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| Reflection nebula | |
|---|---|
| emission nebula | |
| File:R Coronae Australis region.jpg NGC 6729 is the bright fan like nebula at the center of the image. | |
| Observation data: J2000 epoch | |
| Right ascension | 19h 01m 54.1s[1] |
| Declination | −36° 57′ 12″[1] |
| Apparent dimensions (V) | 2.5′ × 2.0′[2] |
| Constellation | Corona Australis |
| Designations | Caldwell 68 |
NGC 6729 (also known as Caldwell 68) is a reflection/emission nebula of the Corona Australis Molecular Cloud in the constellation Corona Australis. It was discovered by Johann Friedrich Julius Schmidt in 1861.[1]
This fan-shaped nebula opens from the star R Coronae Australis toward the star T CrA to the south-east. R CrA is a pre-main-sequence star in the Corona Australis molecular complex, one of the closer star-forming regions of the galaxy at a distance of 130 pc.[1] NGC 6729 is a variable nebula which shows irregular variations in brightness and in shape.[3]
See also
[edit | edit source]- McNeil's Nebula
- NGC 1555 (Hind's Variable Nebula)
- NGC 2261 (Hubble's Variable Nebula)
References
[edit | edit source]- ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Robert Burnham, Jr.: Burnham's Celestial Handbook, Volume 2: Chamaeleon through Orion, pages 695-696: NGC 6726-6727-6729 and R Coronae Australis
External links
[edit | edit source]- Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons
- NGC 6729 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
