Point 1)
You would be vapourised loooooooooooooooooooong before you got to the sun. It's pretty f**king hot. So hot it melts particles together. You'd be f**ked.
Point 2)
Alpha Centauri is f**king far away, we're still umming and aahing about going to mars, which would take over a year I think.
Plus, there's knack all there, it's just a star, it's the same as ours, there isn't a planet of naked women orbiting it.