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| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Crux |
| Right ascension | 12h 56m 35.559s[2] |
| Declination | −57° 53′ 57.02″[2] |
| Apparent magnitude (V) | 8.74 - 11.13[3] |
| Characteristics | |
| Spectral type | Ce(Ne)[4] |
| Variable type | Mira[4] |
| Astrometry | |
| Radial velocity (Rv) | −19.90[5] km/s |
| Proper motion (μ) | RA: 0.507[2]mas/yr Dec.: 1.989[2]mas/yr |
| Parallax (π) | 0.7451±0.0475 mas[2] |
| Distance | 4,400 ± 300 ly (1,340 ± 90 pc) |
| Absolute magnitude (MV) | −4.67[6] |
| Details | |
| Radius | 130[2] R☉ |
| Luminosity | 7,244[7] L☉ |
| Temperature | 3,075[7] K |
| Other designations | |
| V Cru,CD−57°4791,HD 112319,HIP 63175,IRAS 12536−5737,2MASS J12563556−5753569[8] | |
| Database references | |
| SIMBAD | data |
V Crucis is acarbon star in theconstellationCrux. AMira variable, itsapparent magnitude ranges from 8.7 to 11.1 over376.5 days.[4] The fact that this star's period is nearly equal to one year makes it hard to get good observational coverage over the entire cycle. Its near-infrared light curve shows a contribution from the first harmonic of the fundamental period.[9]
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