At 11:52 AM -0800 4/3/98, Tom Whicker wrote:
>...
>So if you want a 0.5 arc second test star.....put your 100 micron pinhole
>at about 700 feet distance. Such a test star is the best (and in the
>real world....the only practical) way to get a rock-stable view of your
>diffraction pattern. The sky will never be stable enough....even on the
>best night..

But most of us don't have an indoor stadium in which to setup such a light
path :-(

---
Bill Arnett "Science is a way of trying
San Jose, CA USA not to fool yourself." -- Feynman

View index by [date] [author] [subject]
Previous message: [M]: Electric focuser recommendation, Paul Goelz
Next message: [M]: LX200 Y2K Compatibility, Email address hidden
Next message in thread: RE: [M]: Artificial Stars, Richmann, Michael
Previous message in thread: [M]: Artificial Stars, Tom Whicker