Iota Carinae
Iota Carinae (ι Carinae, abbreviated Iota Car, ι Car), officially named Aspidiske /ˌæspɪˈdɪskiː/, is a star in the southern constellation of Carina. With an apparent visual magnitude of 2.2, it is one of the brighter stars in the night sky.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Carina |
| Right ascension | 09h 17m 05.40686s |
| Declination | −59° 16′ 30.8353″ |
| Apparent magnitude (V) | 2.21 |
| Characteristics | |
| Spectral type | A9 Ib |
| U−B color index | +0.16 |
| B−V color index | +0.18 |
| Variable type | Suspected |
| Astrometry | |
| Radial velocity (Rv) | 13.3 km/s |
| Proper motion (μ) | RA: −19.03 mas/yr Dec.: +13.11 mas/yr |
| Parallax (π) | 4.71 ± 0.46 mas |
| Distance | 690 ± 70 ly (210 ± 20 pc) |
| Absolute magnitude (MV) | −5.1 |
| Details | |
| Mass | 7.4 M☉ |
| Radius | 43 R☉ |
| Luminosity | 4,900 L☉ |
| Surface gravity (log g) | 2.40 cgs |
| Temperature | 7,500 K |
| Metallicity [Fe/H] | −0.14 dex |
| Rotational velocity (v sin i) | 10.0 km/s |
| Age | 37.4 ± 5.1 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
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