Observation data Epoch J2000.0 Equinox J2000.0 |
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Constellation | Cancer |
Right ascension | 08h31m35.7s |
Declination | +18°05′40″ |
Apparent magnitude (V) | +5.33 |
Distance | 494 ± 69 ly (152 ± 21 pc) |
Spectral type | K5III |
Other designations | |
Theta Cancri (θ Cnc, θ Cancri) is a binary star in the constellation Cancer, 494 light years from Earth.
θ Cancri is classified as an orange K-type giant with an apparent magnitude of +5.33. Since it is near the ecliptic, it can be occulted by the Moon and, very rarely, by planets. From studying its light curve during occultation, θ Cancri is shown to be a close binary, consisting of two stars each with an apparent magnitude of +6.4.