V Puppis

V Puppis
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Puppis
Right ascension 07h 58m 14.43920s [1]
Declination −49° 14′ 41.6803″ [1]
Apparent magnitude (V) 4.45
Absolute magnitude (V)-3.56[2]
Distance1165[3] ly
(357 pc)
Spectral typeB2II/IIIn [1]
Database references
SIMBADdata

V Puppis (V Pup) is a star system in the constellation Puppis. Its apparent magnitude is 4.45. There is a binary star system at the center with a B1 dwarf orbiting a B3 subgiant star. They have an orbital period of 1.45 days and a distance of only 15 solar radii apart. However, the system moves back and forth, indicating that there is a massive object orbiting them. Based on Kepler's Laws and the fact that the object is not visible, it is probably a black hole.[3]

References

  1. ↑ 1.0 1.1 1.2 SIMBAD, V Puppis (accessed 25 January 2013)
  2. ↑ "V Puppis (HIP 38957)". Asland Astronomy Studio. Retrieved 31 Jan 2013.
  3. ↑ 3.0 3.1 Kaler, Jim (2 Jan 2009). "V Pup". Stars. Retrieved 31 Jan 2013.