171 Puppis 171 G. Puppis

Stellar classification



  • X 46
  • Y -4
  • Z -17
→ Sol: 49

Object type

  • Double or multiple star
  • Star
  • High proper-motion Star
  • UV-emission source
simbad:* 171 Pup


171 Puppis (171 Pup) is a triple star system in the constellation of Puppis – the stern of Argo Navis – of apparent magnitude +5.38. Lacking a Bayer designation, it is instead known by its Gould designation. Based upon parallax measurements, the system is 49.6 light years away from the Solar System.

The inner pair form a spectroscopic binary with an orbital period of around 10 years. In 2011, they had an angular separation of 309.8±1.6 mas along a position angle of 72.1°. There is a common proper motion companion, Van Biesbroeck 3 or WD 0743-340, at an angular separation of 869.65″ along a position angle of 2.81° from the inner pair. This is a white dwarf star with a classification of DC11.0 and a temperature of 4,600 K, making it one of the coolest white dwarfs known.

This article uses material from the Wikipedia article "171 G. Puppis", which is released under the Creative Commons Attribution-Share-Alike License 3.0.