Yerkes Observatory

Yerkes Observatory	Yerkes Observatory	Yerkes	Largest refractor in the world
	Floor moves to telescope	Dome rolls on train wheels	Counter balance weights for the floor
40"	AlCon trip 2012	AlCons trip 2012
	Floor being raised	Floor being raised	A bust of Charles Tyson Yerkes
Entryway to the observatory	The 40" is on the 2nd floor up the stairs	George Ellery Hale	18th Century refractor
Details for previous picture	Navigators sextant	Details for previous picture	Made in 1764
Details for previous picture	Charles Tyson Yerkes	Early Solar images	Beautiful architecture.
A focuser?		New spectrograph just built for Sofia	Assembly room for the Spectrograph
Complete machine shop	Early works of E.E. Burnham	Eyepiece and light to view negative plates of star field.	Incredible library of work
Close up view