Hi Roger, Looking back over my emails for the last two months I keep finding your name at the top of some of the most interesting items. I would like a copy of your NASS presentation on sunsets ( of 1999 ) but regret I have no way of viewing power point presentations. If it is possible to print it to a postscript printer driver to a file and send that I have many ways of looking at that. ( I'm told there is a viewer for it on line somewhere, and I regularly download and install stuff, but, gee, I might like it and I hear it is expensive )
I am also interested in the moon tracking idea you had using an armillary sphere. I'd never built one, although tempted. Is it really that easy to see the moon's movement on an ecliptic overlay? You mentioned that the moon's nodes changed often, I guess these are the points that the moon crosses the ecliptic? I have some ancient old moon tracking programs around somewhere. It would be great to see the path of the great old orb. Thanks again! Edley.
