Zeta Cancri
Star system in the constellation Cancer / From Wikipedia, the free encyclopedia
Zeta Cancri (ζ Cancri, abbreviated Zeta Cnc, ζ Cnc) is a multiple star system in the constellation of Cancer. It is approximately 83.4 light-years from Earth, and has a combined apparent magnitude of +4.67. Since it is near the ecliptic, it can be occulted by the Moon and, very rarely, by planets.
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
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Constellation | Cancer |
Right ascension | 08h 12m 12.7s |
Declination | +17° 38′ 52″ |
Apparent magnitude (V) | +5.58/+5.99/+6.12 |
Characteristics | |
Evolutionary stage | main-sequence star |
Spectral type | F7V + F9V + G0V |
Other designations | |
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The system is constituted as follows:[1]
- A binary pair designated Zeta1 Cancri or, alternatively, Zeta Cancri AB, the two components of which are themselves designated Zeta1 Cancri A or, simply, Zeta Cancri A (formally also named Tegmine /ˈtɛɡmɪniː/, the traditional name of the Zeta Cancri system)[2] and Zeta1/Zeta Cancri B.
- A triple star system designated Zeta2 Cancri or alternatively Zeta Cancri C, consisting of a single star primary, designated Zeta2/Zeta Cancri Ca, together with a secondary binary pair, designated Zeta2/Zeta Cancri Cb. The binary pair's two components are themselves designated Zeta2/Zeta Cancri Cb1 and Cb2.