Spherical Astronomy - Positional Phenomena

Positional Phenomena

  • Planets which are in conjunction form a line which passes through the center of the solar system
  • The ecliptic is the plane which contains the orbit of a planet, usually in reference to Earth
  • Elongation refers to the angle formed by a planet, with respect to the system's center and a viewing point
  • Superior planets have a larger orbit than the earth while the inferior planets (Mercury and Venus) orbit the sun inside the Earth's orbit
  • A transit may occur when an inferior planet passes through a point of conjunction

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Famous quotes containing the word phenomena:

    Many of the phenomena of Winter are suggestive of an inexpressible tenderness and fragile delicacy. We are accustomed to hear this king described as a rude and boisterous tyrant; but with the gentleness of a lover he adorns the tresses of Summer.
    Henry David Thoreau (1817–1862)