Re: my €.02....
Hello Chris,
Well, a star radiates heat and has fusion going on inside; that should qualify it as such.
But the word star existed long before all those brown dwarf discoveries, etc...
"Astrum" also meant everything in the sky (planets, stars, comets, supernovae) but the word has kind of vanished in english.
It's fascinating how discoveries sometimes require a redefinition of objects.
Raoul