N Carinae

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]
Distance1,360 ± 70 ly
(420 ± 20 pc)
Absolute magnitude (MV)−3.75[2]
Details
Mass7.9±0.2[5] M☉
Luminosity3,411.35[2] L☉
Temperature8,004[6] K
Rotational velocity (v sin i)47[7] km/s
Age37.4±4.2[5] Myr
Other designations
N Car, CPD−52°953, FK5 2508, GC 8604, HD 47306, HIP 31407, HR 2435, SAO 234589[8]
Database references
SIMBADdata

N Carinae is a single[9] 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]

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.[5] The star is 37 million years old with 7.9 times the mass of the Sun.[5] It is spinning with a projected rotational velocity of 47 km/s.[7] N Carinae is radiating 3,411[2] times the luminosity of the Sun from its photosphere at an effective temperature of 8,004 K.[6]

  1. ^ a b c d e f Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d e f g h i Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Eggen1962 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Tetzlaff2011 was invoked but never defined (see the help page).
  6. ^ a b Cite error: The named reference McDonald2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Royer2002 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).