Kappa Centauri [SEP] constellation
Kappa Centauri
Kappa Centauri (κ Cen, κ Centauri) is a binary star in the southern constellation of Centaurus. With an apparent visual magnitude of +3.14, it can be viewed with the naked eye on a dark night. Parallax measurements place it at an estimated distance of from Earth.
This is a spectroscopic binary system where the presence of an orbiting companion is revealed by shifts in the absorption lines caused by the Doppler effect. The primary component is a huge star, with about seven times the Sun's mass
- Acrux
- Alpha Centauri
- Capella
- p Eridani
- Polaris
- Procyon
- Sirius
- Alpha Centauri system (AB) and Proxima Centauri (thus α Cen C): Actually a three-star system
Examples Optical doubles.
- Alpha and Alpha Capricorni
- Theta Muscae and Theta Muscae B
- Eta and Eta Coronae Australis
- Kappa and Kappa Coronae Australis
- Winnecke 4 (Messier 40)
Examples Uncertain.
- Castor system (Aa/Ab/Ba