From: utzoo!decvax!cca!Vince@sri-unix
Newsgroups: net.space
Title: Eclipse & phase of the moon
Article-I.D.: sri-unix.2012
Posted: Tue Jul  6 02:30:16 1982
Received: Wed Jul  7 02:11:28 1982

Does anyone out there have algorithms for 
   a) Calculating times of eclipses
and
   b) Calculating relative totality at a point in time during the eclipse 
      (e.g. how much of the moon is visible, how much is visible due to 
      refraction, etc.)

I have a program here which calculates and displays the phase of the moon,
and a rather serious bug became evident starting at around 1:30 (EDT) this
morning....

--vaf