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Pluto – On the Borderland of Sol – Pluto is a dwarf planet located at the outermost area of our solar system. Learn about this interesting and far observed planet that has gotten a lot of attention in the past several years. Learn about its own mini system of moons, its atmosphere and more. This presentation is given in an easy to understand format for most ages. So, come to Sperry Observatory for an interesting and informative evening. Talk to members of AAI who are always willing to share their knowledge of astronomy. And learn about our upcoming Astronomy Day being held on Saturday, May 17, 2025!

And learn about Amateur Astronomers, Inc. the Astronomy club that makes its home at Sperry Observatory located on the campus of Union College in Cranford, NJ and how you can join. And, weather permitting, we will do observing through our 2 large telescopes, a 24 inch reflector and a 10 inch refractor.

Amateur Astronomers, Inc. (also known as AAI), celebrated 75 years as an astronomy club in November, 2024!

AAI is celebrating 75 years as an astronomy club! Sperry Observatory is open to the public on Fridays  from 7:30 pm - 10:30 pm (weather permitting). A presentation is given at 8:30 on an astronomy related topic. Register either through the red banner below or at the entrance to the Observatory.

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All visitors must register to enter the Sperry Observatory. Admission and programs are free of charge.

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