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Reynolds Observatory

In this Section

Clarkson's Reynolds Observatory is located on the grounds of the Potsdam Airport.  The observatory is home to a 12” f-10 Meade telescope and a Takahashi astrograph, both of which are mounted on an Astro-Physics 1600 GTO mount.  The observatory now has the capability of making photometric and spectroscopic measurements.

News And Announcements 

Observatory Status: The observatory is operating in science only mode, and is therefore closed to the public until further notice. Scheduled public outreach events will be posted to the clarkson event calendar.

The Skies Of Fall

Just after sunset Saturn and Mars shine brightly to the southwest. A predominant feature of the night time sky in summer is the Summer Triangle, it remains visible in early fall near just after sunset. The Summer Triangle is an asterism, made up of the brightest stars of three constellations: Vega, Deneb, and Altair. At the center of the triangle you can find Alberio, with a small telescope you can see that this star is in fact a visual double star. Alberio is a favorite object to view to illustrate that stars are in fact different colors. Alberio A appears yellowish, while Alberio B appears blueish. Fun fact about stars: hotter stars are blue, while cooler stars are red!

Current Weather


Recent Events

Professor Joshua Thomas recently participated in Astronomy Night at Madison Elementary School in Massena, N.Y. After learning about astronomy through a fun presentation and hands-on demonstrations, the students who attended were energized and excited to learn more about science!

Prof. Thomas giving an astronomy presentation
Prof. Thomas giving his presentation to Madison Elementary school students.

Prof. Thomas showing a lunar demonstration to students
Prof. Thomas showing a hands-on presentation to help the students better understand lunar phases.