N Carinae

N Carinae is a single^[11] star in the constellation Carina, just to the northeast of the prominent star Canopus. This object has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.35.^[2] Based on parallax, it is located at a distance of approximately 1,360 light years from the Sun.^[1] It has an absolute magnitude of −3.75,^[2] and is drifting further away with a radial velocity of +22.5 km/s.^[2]

N Carinae

Observation data Epoch J2000.0      Equinox J2000.0
Constellation	Carina
Right ascension	06h 34m 58.57993s[1]
Declination	−52° 58′ 32.1919″[1]
Apparent magnitude (V)	4.35[2]
Characteristics
Spectral type	A0II[3] or B9III[4]
B−V color index	−0.021±0.016[2]
Astrometry
Radial velocity (Rv)	+22.5±0.5[2] km/s
Proper motion (μ)	RA: -7.65[1] mas/yr Dec.: +10.54[1] mas/yr
Parallax (π)	2.39±0.13 mas[1]
Distance	1,360 ± 70 ly (420 ± 20 pc)
Absolute magnitude (MV)	−3.75[2]
Details
Mass	5.1[5] M☉
Radius	20[6] R☉
Luminosity	3,249[7] L☉
Surface gravity (log g)	2.50[8] cgs
Temperature	9,738[7] K
Rotational velocity (v sin i)	47[9] 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[10]
Database references
SIMBAD	data

This object has a stellar classification of A0II,^[3] matching a massive bright giant. In the past it had received a class of B9III,^[4] which is sometimes still used.^[12] The star is 87 million years old with 5.1 times the mass of the Sun.^[5] It is spinning with a projected rotational velocity of 47 km/s.^[9] N Carinae is radiating 3,249 times the luminosity of the Sun from its photosphere at an effective temperature of 9,738 K.^[7]