... In typical nightly use, the wide field and planetary telescope and cameras record images of favorably placed objects in the sky, including constellations, bright variable stars, nebulae through narrow-band filters, comets, the Moon, and planets. ... Shared Skies telescopes are available for use by students at the University of Louisville and the University of Southern Queensland, and by teachers and students in middle and high schools mentored by faculty at the universities. ...

Tcl /Tk programs can act as XPA clients and/or servers using the Tcl interface to XPA that is contained in the libtclxpa.so shared object. set xpa [xpanew class name help sproc sdata smode rproc rdata rmode] xpafree xpa set xpa [xpanew class name help iproc idata imode] set xpa [xpacmdnew class name ] xpacmdadd xpa name help sproc sdata smode rproc rdata rmode xpacmddel xpa cmd ... When this routine is called, a copy of buf is saved for transmission to the client. ...