> From what I can learn about "seeing" the atmosphere instability is too > great to allow making measurements optically in the 1 ms area.
There has been some interesting amateur work done on taking lots of short-exposure pictures and sifting through them to find the good ones. (I can't find a good URL right now.) I don't know if any stars are bright enough to make that practical. > The source has to be "not moving" (which I think leaves out using > something like jupiter) We know where Jupiter is. It should be possible to correct for that motion. It's just another layer of software. :) > As someone else has pointed out, measuring the earth surface position > relative to spacecraft orbits, e.g. GPS, would be another technique. That's an interesting idea, but I think all the orbit data for GPS satellites is Earth relative rather than star relative. I wonder if the group that drives the GPS satellites even knows their location relative to the stars. I'll bet not. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
