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Reflection nebula in the constellation Corona Australis From Wikipedia, the free encyclopedia
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]
Reflection nebula | |
---|---|
emission nebula | |
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 |
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]
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