I found the book!

Originally posted by julierockhead at Science fiction trilogy 1980's

The only few things I remember about this series is that the main character was a girl found on earth by her family, and taken off earth. One of her brothers was named Charon or Chaeron. Her family was important and rich and that's it! It wasn't an obscure series, it was in bookstores for most do a decade...but the only cover I can remember, vaguely, is the cover of the first book, which showed a woman floating/ flying in space, she may have had red hair...oh please help, I have been looking for this series for a couple years now...