Dne 19/01/2018 v 07:46 Libor 'Poutnik' StÅ™Ã*ž napsal(a):
But for the given semi major axis and orbit period,
this mean speed is a function of eccentricity.

The ratio of this mean speed for the extreme cases
of e-1 and r-0 is 4/pi.

Errata: 2/pi // ( 4.r)/(2.pi.r)

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Poutnik ( The Pilgrim, Der Wanderer )

A wise man guards words he says,
as they say about him more,
than he says about the subject.