N Carinae
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Carina |
| Right ascension | 06h 34m 58.580s |
| Declination | −52° 58′ 32.19″ |
| Apparent magnitude (V) | 4.35 |
| Characteristics | |
| Spectral type | A0II or B9III |
| B−V color index | −0.021±0.016 |
| Astrometry | |
| Radial velocity (Rv) | +22.5±0.5 km/s |
| Proper motion (μ) | RA: −7.537 mas/yr Dec.: +10.643 mas/yr |
| Parallax (π) | 1.9235±0.0926 mas |
| Distance | 1,700 ± 80 ly (520 ± 30 pc) |
| Absolute magnitude (MV) | −3.75 |
| Details | |
| Mass | 5.1±0.1 M☉ |
| Radius | 20 R☉ |
| Luminosity | 3,249 L☉ |
| Surface gravity (log g) | 2.45±0.03 cgs |
| Temperature | 9361±94 K |
| Metallicity [Fe/H] | −0.34±0.03 dex |
| Rotational velocity (v sin i) | 47 km/s |
| Age | 87±5 Myr |
| Other designations | |
| N Car, CPD−52°953, FK5 2508, GC 8604, HD 47306, HIP 31407, HR 2435, SAO 234589 | |
| Database references | |
| SIMBAD | data |
N Carinae is a single star in the constellation Carina, just to the northeast of the prominent star Canopus. Its name is a Bayer designation. This object has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.35. Based on parallax, it is located at a distance of approximately 1,700 light years from the Sun. It has an absolute magnitude of −3.75, and is drifting further away with a radial velocity of +22.5 km/s.
This object has a stellar classification of A0II, matching a massive bright giant. In the past it had received a class of B9III, which is sometimes still used. The star is 87 million years old with 5.1 times the mass of the Sun. It is spinning with a projected rotational velocity of 47 km/s. N Carinae is radiating 3,249 times the luminosity of the Sun from its photosphere at an effective temperature of 9,361 K.