Yerkes LionYerkes Lion YERKES OBSERVATORY
The University of Chicago

373 W. Geneva St, Williams Bay WI 53191 (Latitude 42 34.2, Longitude -88 33.4)
M2 (NGC 7089) in Aquarius. Image taken for Hands On Universe at Yerkes Observatory with the 24-inch Telescope, August 28, 2000.

Yerkes Public Star Party

Date: Saturday, April 11
Time: 7:30pm - 9:30pm
Place: Yerkes Observatory
Fee: $5.- per person
  $15.- per family

Participants will say farewell to winter constellations and hello to spring ones. If skies are clear, we will observe both with the unaided eye and through telescopes. Venus dominates the western sky. In the east, giant Jupiter with its four moons steals the show. The very bright constellation Orion and its Great Nebula hang nearby, close to Sirius, the brightest nighttime star. Come to see these and more!

Even if it is too cloudy to observe, there is much to do. Indoor activities include hands-on activities, presentations, and facility tours. The Yerkes tour features a look at, but not through, the 40-inch Great Refractor within the unheated 90-foot diameter dome.

Remember to dress appropriately for standing outdoors on a chilly night, with hats, mittens, scarves, winter coats and sturdy shoes. The cost will be $5 per person, with a maximum of $15 per family. All children must be accompanied by an adult. No pets, please. If you wish, bring your own binoculars, digital cameras on a tripod, or telescope. We can help you to use them.

Yerkes Observatory is located at 373 W. Geneva Street in Williams Bay, Wisconsin. Throughout the year, they offer a variety of programs.

  1. Yerkes Public Star Party - Registration
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    5. Photo permission:
      I give Yerkes Observatory permission to take pictures of my family for educational purposes at the Yerkes Public Star Party