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From: Slocum@HI-MULTICS.ARPA
Newsgroups: net.space
Subject: Planet prefixes
Message-ID: <860220161736.004012@HI-MULTICS.ARPA>
Date: Thu, 20-Feb-86 11:17:00 EST
Article-I.D.: HI-MULTI.860220161736.004012
Posted: Thu Feb 20 11:17:00 1986
Date-Received: Mon, 24-Feb-86 04:55:35 EST
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The ARPA Internet
Lines: 10

When one is refering to Earth, the prefix 'geo-' is used.
Similarly, the prefix for Sol is 'helio-'.

Could someone tell me what the prefixes for the other planets
would be? For instance, is it lunocentric or selenocentric.
What would the equivalent to perigee, perihelion, apogee, and 
aphelion be for the other planets? 

    Brett Slocum
    (Slocum\@HI-MULTICS)