Hmm, works for me. Try this: http://tinyurl.com/cq48a5 or you can go to Corbis and search "Tombaugh" http://pro.corbis.com/ On Wed, Apr 1, 2009 at 11:29 AM, Greg Roberts <grr@telkomsa.net> wrote: > Hi > > The first link did not work but from what I recall about the search for a > planet beyond Neptune a 13 inch astrographic refractor was used on a > standard equatorial mount. I have a document somewhere about this search > and it was possible to mechanically change the drive rate of the telescope > in RA and Dec to match a body moving at a particular angular velocity. > > In the second article they mention a schmidt telescope - this doesnt ring a > bell. Of course my memory re this might be a little out :-(( > > Tday this can be done much easier under computer control and using such > things as stepper motors so I dont think it would be really worth while > trying to copy the situation at Lowell Observatory. > > Cheers > Greg > > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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