uranology
51inferior conjunction — noun (astronomy) the alignment of the Earth and a planet on the same side of the sun • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑conjunction, ↑alignment …
52Kepler's law — noun (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler • Syn: ↑Kepler s law of planetary motion • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑law, ↑ …
53Kepler's law of planetary motion — noun (astronomy) one of three empirical laws of planetary motion stated by Johannes Kepler • Syn: ↑Kepler s law • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑law, ↑law of nature …
54major planet — noun (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected light; Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto in order of their proximity to the sun; …
55mean solar time — noun (astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator) • Syn: ↑mean time • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑time unit, ↑ …
56mean time — noun (astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator) • Syn: ↑mean solar time • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑time unit, ↑ …
57natural philosophy — noun the science of matter and energy and their interactions his favorite subject was physics • Syn: ↑physics • Derivationally related forms: ↑physical (for: ↑physics), ↑physicist ( …
58nucleosynthesis — noun (astronomy) the cosmic synthesis of atoms more complex than the hydrogen atom • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑synthesis …
59Oort cloud — noun (astronomy) a hypothetical huge collection of comets orbiting the sun far beyond the orbit of Pluto; perturbations (as by other stars) can upset a comet s orbit and may send it tumbling toward the sun • Topics: ↑astronomy, ↑uranology •… …
60orbital plane — noun (astronomy) the plane on which a body is orbiting • Topics: ↑astronomy, ↑uranology • Hypernyms: ↑plane, ↑sheet …
