V Puppis

V Puppis

Observation data Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation	Puppis
Right ascension	07^h 58^m 14.43920^s [1]
Declination	−49° 14′ 41.6803″ [1]
Apparent magnitude (V)	4.45
Absolute magnitude (V)	-3.56[2]
Distance	1165[3] ly (357 pc)
Spectral type	B2II/IIIn [1]
Database references
SIMBAD	data

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 that since the object is not visible, it is probably a black hole.^[3]

References

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