Using a Birding (Spotting) Scope for Visual Astronomy

I'm a little tight on weight and space for a trip that I plan to combine
some astro and birding. I've never tried my birding scope, a Vortex (Stokes,
20-60x, 80mm http://www.eagleoptics.com/index.asp?pid=4471), for
astronomy, but I will tonight. Any comments on this soft of use? I do not
have expectations that it will be like some of the better refractors of the
same size. I have no intention of doing photography with it, just visual
observing.
--
Wayne Watson (Nevada City, CA)

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