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)
“Meaning is what essence becomes when it is divorced from the object of reference and wedded to the word.”
—Willard Van Orman Quine (b. 1908)