[LEAPSECS] Mean ... Orbits

[Mark Calabretta]

On Thu 2011/02/03 11:05:01 -0000, Tony Finch wrote
in a message to: Leap Second Discussion List <leapsecs at leapsecond.com>


>In order to see the analemma you need to know the equation of time.


You only need a clock and knowledge of the length of a mean solar
day.  The analemma itself shows you the equation of time (and the
obliquity of the ecliptic).

http://apod.nasa.gov/apod/ap101231.html
http://apod.nasa.gov/apod/ap061230.html  (Mars)
http://apod.nasa.gov/apod/ap050713.html  (Moon)

Check out the last two particularly.

Regards,
Mark Calabretta