argument of perigee
McGraw-Hill Science & Technology Dictionary:
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argument of perigee
(′är·gyə·mənt əv ′per·ə·jē)
(astronomy) The angle or arc, as seen from a focus of an elliptical orbit, from the ascending node to the closest approach of the orbiting body to the focus; the angle is measured in the orbital plane in the direction of motion of the orbiting body. Also known as argument of perihelion.
Wiley Book of Astronomy:
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argument of perihelion
argument of perihelion (ω)
The angle between the ascending node and the perihelion of an orbit around the Sun, measured in the orbital plane and in the direction of orbital motion. The argument of perihelion specifies the direction of the major axis of an orbit around the Sun and is one of the orbital elements.
The angle between the ascending node and the perihelion of an orbit around the Sun, measured in the orbital plane and in the direction of orbital motion. The argument of perihelion specifies the direction of the major axis of an orbit around the Sun and is one of the orbital elements.
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McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved.
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