And join us on Saturday and Sunday, October 19 and 20, for the annual “Four Centuries in a Weekend”. William Miller Sperry Observatory will be participating in this annual event. The doors to the Observatory will be open both days from 12:00 pm – 5:00 pm. Come and learn about the Observatory. There will be guided tours of the building that includes the 2 large telescopes that are located in it. This is open to all ages.