839 Valborg is a mid-sized S-type Eunomian asteroid. Its diameter is about 20 km, its albedo of 0.353 is very high for an asteroid. Its rotation period is 10.366 hours.

External links

  • , Palmer Divide Observatory, B. D. Warner (2005)
  • , query form ( 16 December 2017 at the Wayback Machine)
  • , Google books
  • – Observatoire de Genève, Raoul Behrend
  • – Minor Planet Center
  • at AstDyS-2, Asteroids—Dynamic Site · · · ·
  • at the JPL Small-Body Database · · · · ·