What are the Mars aphelion and perihelion dates?
Mars is next at aphelion on 7 October 2017 and is next at aphelion on 16 September 2018.
The period between successive perihelia is called the anomalistic period. Mars has an anomalistic period of about 687 Earth days.
Mars was at perihelion on 29 October 2016.
It will next be at aphelion on 7 October 2017.
It will next be at perihelion on 16 September 2018.
The dates were calculated using the NASA JPL DE430 data which enables the position of the Sun, Moon and planets to be calculated accurately for any time between the years 1550 and 2550.