jude_rook: Image of Andromeda Galaxy (Default)
jude_rook ([personal profile] jude_rook) wrote2010-11-28 09:30 am

Omicron Aquilae and HD 25457/Gliese 159

Omicron Aquilae

This star is 63.2 light years away, an F8V star with an M companion.  It’s about 4.3 billion years old with a metallicity 1.3 times that of Sol.  It appears to produce an extremely large flare every so often --one large enough to destroy the Earth‘s ozone layer if Sol were to produce one.

HD 25457/Gliese 159

In Eridanus at a distance of 63 light years, this is an F5V star.  I could not find info on metallicity, but it has a debris disk, a good sign for planets.