Studies of Saturn's satellites suggest that large craters (e.g., >20 km on Rhea) show clear apex-antapex asymmetry, while smaller craters do not, potentially indicating different populations of impactors (heliocentric vs. planetocentric) [1, 21]. 3. Observational Data and Parallax
In any system of motion, the is the "forward" direction and the antapex is the "rearward" direction.
The Sun's motion toward its apex creates a pattern of proper motions where distant stars appear to drift toward the antapex over time [14].
Antapex
Studies of Saturn's satellites suggest that large craters (e.g., >20 km on Rhea) show clear apex-antapex asymmetry, while smaller craters do not, potentially indicating different populations of impactors (heliocentric vs. planetocentric) [1, 21]. 3. Observational Data and Parallax
In any system of motion, the is the "forward" direction and the antapex is the "rearward" direction. antapex
The Sun's motion toward its apex creates a pattern of proper motions where distant stars appear to drift toward the antapex over time [14]. Studies of Saturn's satellites suggest that large craters (e