jude_rook: Image of Andromeda Galaxy (Default)
jude_rook ([personal profile] jude_rook) wrote2010-08-09 06:29 pm

HR 7703

HR 7703, a binary system, is 19.8 light years from us, in Sagittarius.  The A star is a K3V orange dwarf and its companion is a red dwarf.  Neither has any known planets.  The two stars average about the same distance from each other as Sol is from Pluto, but I don't know how far they are at their closest.

A's metallicity is around half of Sol’s.  No information on age that I could find.  ETA: a recent study suggests an age of 7.9 billion years.