Eng

眶

Orbital cavity

軌道動力能

Orbital Mechanics

逆行

Orbital or rotational motion of an object in the direction opposite of its primary; for objects in our solar system, a clockwise direction when viewed from the north pole of the ecliptic

順行

Orbital or rotational motion of an object in the same direction as its primary; for objects in our solar system, a counterclockwise direction when viewed from the north pole of the ecliptic

軌道路徑

Orbital path

近日點及遠日點

Orbital points respectively closest and most distant from the sun

軌道

Orbital track