Kappa Crucis (star)
From Infogalactic: the planetary knowledge core
 κ Cru (on the left), a blue supergiant and the third brightest star in the Jewel Box cluster |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Crux |
| Right ascension | 12h 53m 48.91920s[1] |
| Declination | −60° 22′ 34.4808″[1] |
| Apparent magnitude (V) | 5.98[2] |
| Characteristics | |
| Spectral type | B3Ia[3] |
| U−B color index | −0.58[2] |
| B−V color index | +0.22[2] |
| Astrometry | |
| Radial velocity (Rv) | -3.5[4] km/s |
| Proper motion (μ) | RA: −3.60[1] mas/yr Dec.: −1.89[1] mas/yr |
| Parallax (π) | -1.32 ± 0.57[1] mas |
| Distance | n/a ly |
| Details | |
| Surface gravity (log g) | 2.20[5] cgs |
| Temperature | 15,950[5] K |
| Rotational velocity (v sin i) | 70[5] km/s |
| Other designations | |
Kappa Crucis (κ Cru, HD 111973) is a star in star cluster NGC 4755,[6] which is also known as the Kappa Crusis Cluster.
References
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