Northern Virginia Astronomy Club meeting on Sun. April 13 - New 2008 April 23

The Power Point file for my talk on observing occultations, and links to the videos that I showed, are given

The file for the presentation that I gave on observing occultations 
at the April meeting of the Northern Virginia Astronomy Club 
is here (5 megabytes).  I showed videos of the occultation of a star whose close 
duplicity was discovered during the occultation by the asteroid 
(99) Dike on 2005 December 1 recorded in MD & VA that you can read 
about and see here, and about the spectacular graze of another close 
double star, mu Arietis, observed in Texas in June.  The talk was 
updated from a similar presentation that I gave last October at the 2007 
meeting of the Virginia Association of Astronomical Societies.
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David Dunham, 2007 April 23, 23h UT
cell phone 301-526-5590, e-mail dunham@starpower.net
office e-mail david.dunham@jhuapl.edu