Destinations and Experiences: Yerkes Observatory 40-inch Refractor (1 Person Pass)

One Person Pass to Yerkes Observatory, founded in 1897 by George Ellery Hale and financed by businessman Charles T. Yerkes, is the birthplace of modern astrophysics. The observatory changed the face of astronomy from being a mere housing of telescopes and astronomers to being an integration of optics with a laboratory for chemistry and physics. Those who worked at Yerkes Observatory represented a who's who of astronomers, scientists, and physics icons including Hale, Barnard, Hubble, Einstein, and Sagan. Now you can experience for yourself the amazing views through the world's largest refractor, the 40-inch, at Yerkes Observatory, using Explore Scientific Waterproof Eyepieces. 

Every month during the year, on select weekday and weekend evenings, Yerkes Observatory offers observing sessions with the "Great Refractor", the 40-inch Refractor Telescope, the largest refracting telescope in the world, weather permitting, for participants who are age 10 and older.

When you buy a ticket then we will send instructions on contacting the Observatory for available dates that you can choose from. Cloudy weather will not cancel your chance for observation, you will simply reschedule for a new date. 




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