Mobile planetarium at Byurakan Observatory open for visitors Byurakan Astrophysical Observatory offers its visitors a a mobile planetarium. Mobile Planetarium is an inflatable dome-shaped projection screen. As the Observatory said in a Facebook post, visitors can enjoy movies on various subjects including, but not restricted to Astronomy, Biology, etc. All movies last 25-30 minutes and suit children of all ages. The planetarium is open on Saturdays and Sundays, from 10:00 to 23:00. Source Panorama.am