The planet consequently receives nearly three times as much light and heat in perihelion as in aphelion.
In the orbit of a planet, means the line joining its aphelion and perihelion.
The imaginary line joining the aphelion and perihelion points in the orbit of a planet.
The motion of Newton's comet at aphelion may be equally slight.
It may, perhaps, be far advanced in its aphelion,—but when to return?
After the fourth go round he was fully five diameters out at aphelion.
At present the earth is about three millions of miles nearer the sun in perihelion than in aphelion.
It will not return before the 38th century, and will only reach its aphelion about the year 2800.
At the perihelion the planet is urged from the sun and at the aphelion towards the sun.
It seems probable, then, that in all northern lands glaciation would commence when autumn occurred in aphelion.
"point farthest from the sun" (of a celestial body's orbit), 1670s, a Grecianized form of Modern Latin aphelium, altered by Johannes Kepler based on Greek apo heliou "away from the sun," from apo "away from" (see apo-) + heliou, genitive of helios "sun" (see sol). The whole was formed on the model of Ptolemaic apogaeum (see apogee) to reflect the new helio-centric model of the universe.
The point at which an orbiting body, such as a planet or comet, is farthest away from the Sun. Compare apogee, perihelion.