Science / Tides and Currents / Perigee: The point in the orbit of the Moon or a man-made satellite nearest to the Earth. The point in the orbit of a satellite nearest to its companion body.


Science / Tides and Currents / Month: The period of the revolution of the Moon around the Earth. The month is designated as siderial, tropical, anomalistic, nodical, or synodical according to whether the revolution is relative to a fixed MORE


Science / Tides and Currents / P1: Rate of change (as of January 1, 1900) in mean longitude of solar perigee. P1 = 0.000,001,96° per solar hour. MORE


Business / Finance / P: Fifth letter of Nasdaq stock symbol specifying issue is the company's first class of preferred shares. MORE


Science / Astrology / Apogee: The point in a planet's orbit that is most distant from Earth. MORE


Science / Tides and Currents / Apsides: The points in the orbit of a planet or moon which are the nearest and farthest from the center of attraction. In the Earth's orbit these are called perihelion and aphelion, and in the Moon's orbit, pe MORE


Science / Tides and Currents / Anomaly: As applied to astronomy, the anomaly is the angle made at any time by the radius vector of a planet or moon with its line of apsides, the angle being reckoned from perihelion or perigee in the directi MORE