Re: What is the closest Star?
A new very close star system was just discovered.
After the Alpha Centauri triple star system comes Barnards star, a red dwarf at about 6 light years I think and then this newly discovered pair of brown dwarfs. There has long been speculation that a brown dwarf may be much closer and may even be part of our solar system lurking waaaaaaaaaay out beyond Pluto. It has been named "Nemesis" for being responsible for apparent "extinction events" where the earth has been bombarded bycomets in the past. It probably does not exist but such brown dwarfs are very hard to find.
My astro rant for the day.