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From: mamon@acf4.UUCP
Newsgroups: net.astro.expert
Subject: Re: Pluto surface gravity?
Message-ID: <6430004@acf4.UUCP>
Date: Sat, 25-Jan-86 20:32:00 EST
Article-I.D.: acf4.6430004
Posted: Sat Jan 25 20:32:00 1986
Date-Received: Thu, 30-Jan-86 06:27:17 EST
References: <19300002@inmet.UUCP>
Organization: New York University
Lines: 17


Surface Gravity goes as M/(R*R).
Thanks to its newly discovered satellite (Charon), Pluto's mass is estimated
at .002 terrestrial masses. Its Radius is less well known but guessed to
be roughly 1750 km, or .27 terrestrial radii.
(This data was taken from a popular french almanac for 1985).

These figures yield a surface gravity 37 times smaller than on Earth.

In other words, if Bob Beamon were on Pluto, and he managed to get used
to the surface, the atmosphere, and the gravity of Pluto, he would be able 
to clear 333 meters in a long jump (if he managed to duplicate his physical 
shape of 1968).


Gary A. Mamon -------- New York University, Physics Department
(212) 598-3627 ****** {allegra|ihnp4|seismo|princeton|topaz}!cmcl2!acf4!mamon