Historic Pluto Astrograph Open House




6pm - 10pm

Schedule subject to change, check with front desk for current times.


Included with General Admission

Take a self-guided tour through the very building where Pluto was discovered!

You can check out the Lawrence Lowell Telescope, a 13” astrograph that was built specifically to aid in the search for Percival Lowell’s fabled ‘Planet X,’ and was eventually used by Clyde Tombaugh to discover Pluto in February of 1930. An educator will be present to answer your questions about the mysterious dwarf planet and its discovery. 

Learn more about the Pluto Discovery Telescope