The size probably varies according to the assumptions made during the calculations - one hypothesis says that Venus and Earth will be spared (but just barely), Mercury (orbit in dashed line) gets eaten:
11 posted on 07/21/2006 8:09:57 PM PDT by beezdotcom
12 posted on 07/21/2006 8:15:23 PM PDT by King Prout
(many complain I am overly literal... this would not be a problem if fewer people were under-precise)