The 13" Telescope Clyde Tombaugh used to Discover Pluto
The 13" telescope Clyde Tombaugh used to discover Pluto is located at the Lowell Observatory in Flagstaff, AZ.
ArizonaClyde TombaughFlagstaffLowell ObservatoryNorth AmericaPercival LowellPlutoRoute 66Route 66 Road TripU.S.United Statesastronomycolorresearchroad triproadtripsciencescientific discoverytourismvacationvacation destination2013DennisMookAllRightsReserved01651