Nikon1964 - astropa.inaf.it · 30Cm (12 inch) Reflector Cassegrain type reflector consists of a man...
56
Nikon1964 - astropa.inaf.it · 30Cm (12 inch) Reflector Cassegrain type reflector consists of a man teieSCope, German type equatorial mounting, clock device driven by a synchronous