(September 5, 2014 at 10:54 am)ezekiel Wrote: I have been reading up on Proxima Centauri. When first discovered thru Parallax it was around 2 LY away but now they say around 4 LY. I see they are to do another Parallax this year and see if any planets are with it. I think the Centarui system is dangerously close and the orbit can sling any thing towards us because of the north and south orbits.
It wasn't discovered through parallax. That is a means of determining distance, not discovering unknown objects.
Furthermore, its distance at the time of discovery was understood to be very near that of A Centauri, about 4.25 LY and thus your claim that the distance has been changed, either in books or in reality, is incorrect.
Your worries about that system harming ours are misplaced. Have a cup of coffee and relax.
