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Volume 16 -- Issue 12
Above the Solar System -- December 2010

Name Dec 8 Dec 18 Dec 28
Mercury 016o 08' 075o 03' 135o 16'
Venus 099o 47' 116o 00 132o 14'
Earth 075o 46' 085o 56' 096o 07'
Mars 279o 43' 285o 38' 291o 38'
Jupiter 005o 28' 006o 23' 007o 19'
Saturn 190o 00' 190o 20' 190o 40'
Plot planet positions using polar graph paper or the provided activity sheet.

This is a coordinate system which allows for the plotting of a planet position along its orbital path using degrees (0o to 360o) of heliocentric longitude. Once plotted the orbital position of one planet could be compared with that of another planet. Or the relative orbital speeds of an inner planet could be compared with that of an outer planet.

Terrestrial Planets in Motion at 5 day intervals — December 2010
Above the Terrestrial Planets - December 2010