FG Sagittae (FG Sge)
Abstract
FG Sge (α=20°11'56'', δ=+20°20'04'', epoch = 2000) is a very peculiar giant star undergoing extremely rapid evolutionary changes and nucleosynthetic processing. It has evolved at a remarkable pace over the last century changing among other properties its appearance from a hot (O-type) star to a luminous, cool (K-type) giant today. FG Sge is classified as a `born-again giant' currently experiencin...
- Publication:
-
Encyclopedia of Astronomy and Astrophysics
- Pub Date:
- November 2000
- DOI:
- 10.1888/0333750888/2887
- Bibcode:
- 2000eaa..bookE2887A
- Keywords:
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- Stars;
- Individual Stellar Objects