noun. The point in a solar orbit where the orbiting body is closest to the sun.

noun. That point of the orbit of a planet or comet in which it is at its least distance from the sun: opposed to aphelion.

noun. That point of the orbit of a planet or comet which is nearest to the sun; -- opposed to aphelion.

noun. The point in the elliptical orbit of a planet or comet etc. where it is nearest to the Sun.

noun. periapsis in solar orbit; the point in the orbit of a planet or comet where it is nearest to the sun

"Thus it can be seen that while the sun is travelling through space, it is at the same time giving rise to the electro-magnetic Aether waves, which, by their repelling power, repel the Earth from the sun in the direction that the sun is travelling, and hence the half-circle is elongated into that part of the elliptic orbit known as the perihelion, which is that part of the orbit where the distance of any planet from the sun is the least."

aphelion  

perihelium  

aphelion  apolune  periastron  perigee  perilune  

periapsis  point of periapsis  

adnexa  deorbit  overflights  river  three-game  

perihelia