Perigalacticon

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Perigalacticon is an apsis. It is the point in a star's orbit around a galaxy when the it lies closest to the galactic center. The Sun is presently near its perigalacticon. Perigalacticon may also refer to a galaxy's closest point (Galactocentric distance) as it orbits another galaxy.[1]

[edit] References

  1. ^ Croswell, Ken (1995), The Alchemy of the Heavens, Anchor Books, ISBN 0385472145 
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