| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Crux |
| Right ascension | 12h21m 21.12807s[1] |
| Declination | −62° 16′ 53.8790″[1] |
| Apparent magnitude (V) | 6.32 - 6.83[2] |
| Characteristics | |
| Evolutionary stage | F6-G2Ib[3] |
| Variable type | δ Cep[2] |
| Astrometry | |
| Proper motion (μ) | RA: −10.915[1] mas/yr Dec.: −0.471[1] mas/yr |
| Parallax (π) | 1.2106 ± 0.0142 mas[1] |
| Distance | 2,690 ± 30 ly (826 ± 10 pc) |
| Absolute magnitude (MV) | −3.49[4] |
| Details | |
| Mass | 7.2[1] M☉ |
| Radius | 55[1] R☉ |
| Luminosity | 2,601[1] L☉ |
| Surface gravity (log g) | 1.52[1] cgs |
| Temperature | 4,676[1] K |
| Metallicity [Fe/H] | 0.09[4] dex |
| Age | 57[4] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
T Crucis is a star in the constellation Crux. A Cepheid variable, its apparent magnitude ranges from 6.32 to 6.83 over 6.73331 days.[3] It is a yellow-white supergiant that pulsates between spectral types F6Ib and G2Ib.[3] The radius is 55 times that of the Sun.
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