Perigee

Science / Astrology / Perigee: The point of orbit at which a planet is closest to Earth.
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Month

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

P1

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

P

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

Apogee

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

Apsides

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

Anomaly

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