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Absolute Magnitude (H)
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Argument of Perihelion
Astrometry
AU
Barycenter
Declination
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Geodetic
GM
Heliocentric
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Longitude of Perihelion
Longitude of the Ascending Node
Mean Anomaly
Mean Longitude
Mean Motion
Meridian
Meteor
Meteoroid
Minor Planet
Nutation
Obliquity
Orbit
Orbital Period
Perihelion Distance
Phase Angle
Right Ascension
Semi-major Axis
Time of Perihelion Passage
Topocentric
Vernal Equinox
SSD Glossary

A list of defined terms is listed to the left. Click on the term of interest to display its definition.



NOTE: The list of defined terms to the left is by no means exhaustive with respect to the general subject of solar system dynamics. The terms listed are thought to be those more commonly used on our site and thus appropriate for inclusion on this page.

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