Theta Coronae Australis
Theta Coronae Australis, Latinized from θ Coronae Australis, is a star located in the constellation Corona Australis. Theta Coronae Australis is also known as HR 6951, and HD 170845. Parallax measurements by Hipparcos put it at a distance of roughly 560 light-years, or 171 parsecs, away from the Solar System.
Theta Coronae Australis is a G-type giant star that is radiating 497 times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,794 K. It has an apparent visual magnitude of 4.64, and is about 11 times wider than the Sun. Theta Coronae Australis has an unusually high rate of rotation for an evolved star of this type, showing a projected rotational velocity of 11.8 km/s. One possible explanation is that it may have engulfed a nearby giant planet, such as a hot Jupiter.
