Hi All,
I have noticed on here some people building foldable geodesic domes for observatories. well I came across this today, its purpose is a tent like device however i think it could be adapted to a VERY portable observatory. Check it out here.
http://www.instructables.com/id/Folding-Geodesic-Dome/
What I imagine is the dome, some kind of clip together track and wheels. dome on the ground observatory. OR even aluminium poles to make 2 hexagonal shapes with cloth around them, the dome runs on the hexagonal shapes making a fully portable fit in the boot of a sedan observatory.