McDonald Observatory (465143)
McDonald Observatory (464967)
McDonald Observatory (465142)
McDonald Observatory (465315)
McDonald Observatory (465294)
McDonald Observatory (465314)
McDonald Observatory (464966)
McDonald Observatory (465006)
McDonald Observatory (465326)
McDonald Observatory (465135)
McDonald Observatory (465139)
McDonald Observatory (464976)
McDonald Observatory (464870)
McDonald Observatory (465002)
McDonald Observatory (464895)
McDonald Observatory (465057)
McDonald Observatory (464914)
McDonald Observatory (465257)
McDonald Observatory (465052)
McDonald Observatory (465234)
McDonald Observatory (465297)
McDonald Observatory (465027)
McDonald Observatory (465153)
McDonald Observatory (464964)
McDonald Observatory (465062)
McDonald Observatory (465287)
McDonald Observatory (465277)
McDonald Observatory (465008)
McDonald Observatory (465023)
McDonald Observatory (464927)
McDonald Observatory (465038)
McDonald Observatory (465047)