Hi Peter,
I was going to tell you: "That's easy: you can specify the
RA/dec as an object. For example,
guide8 -o031415.9,-265358 -tsep
will cause Guide to start up centered on 03h14m15.9s,
-26 53' 58", with the starting time set to September of the
current year."
Fortunately, I checked this out before telling you all this.
It turns out that Guide only got this right with positive
declinations; it interpreted negative decs as new options.
I have fixed this; the version at
http://www.projectpluto.com/new.htm
should work correctly. It also fixes a bug that could cause
crashes at startup, as reported at the above page.
Other command line options are mentioned at
http://www.projectpluto.com/random.htm#command_line
-- Bill