What's the difference between perigee and perihelion?

Perigee


Definition:

  • (n.) Alt. of Perigeum

Example Sentences:

  • (1) Dose-response curves for methacholine-induced acid and pepsin secretion at the perigee did not differ from those obtained with ganglionic blockade.
  • (2) Protein peaks and 100-min totals were lower than control and volume perigees higher.
  • (3) The interpeak interval was increased, and the perigee levels (interpeak) were higher than in the controls.

Perihelion


Definition:

  • (n.) Alt. of Perihelium

Example Sentences:

  • (1) It then plunges into the Sun's glare as it tracks towards perihelion, where it sweeps only 1,165,000 km above the Sun's surface on 28 November.
  • (2) Recall, too, that it was the then inexplicable Michelson-Morley experiment which encouraged the spread of Einstein's early ideas, and the baffling perihelion precession of Mercury which lent support to his general theory.
  • (3) After perihelion, and assuming enough of it has survived its scorching journey, ISON then reappears, tail first and moving northwards, to climb away from the Sun in both our morning and evening twilight.

Words possibly related to "perigee"