Planes of Reference
Common planes of reference include:
- For a geocentric orbit, the Earth's equatorial plane. In this case, non-inclined orbits are called equatorial.
- For a heliocentric orbit, the ecliptic. In this case, non-inclined orbits are called ecliptic.
- For an orbit outside the Solar System, the plane through the primary perpendicular to a line through the observer and the primary (called the plane of the sky)., chap. 17.
Read more about this topic: Orbital Node
Famous quotes containing the words planes and/or reference:
“After the planes unloaded, we fell down
Buried together, unmarried men and women;”
—Robert Lowell (1917–1977)
“I think, for the rest of my life, I shall refrain from looking up things. It is the most ravenous time-snatcher I know. You pull one book from the shelf, which carries a hint or a reference that sends you posthaste to another book, and that to successive others. It is incredible, the number of books you hopefully open and disappointedly close, only to take down another with the same result.”
—Carolyn Wells (1862–1942)