top of page

Check the homepage to see if we're open!

Fuertes Observatory Open House Nights

Fuertes Observatory is open every Friday night during the Cornell academic year from 8 PM until midnight (regardless of weather) and occasionally at other times, as announced on our Instagram and Facebook. Lectures are given on select Friday nights in an external building on North Campus. Open house nights begin after each lecture.


When clear, public viewing takes place through the observatory's telescopes. Tours of the historic building, the Irving Porter Church Refractor, and our museum will be given throughout the night, regardless of the weather.

You can also visit our Hours & Directions page for hours, directions, parking information. 

For accessibility information, see our Accessibility page.

Fuertes Observatory Guidelines

When you attend an open house night at the Fuertes Observatory, please be respectful of the volunteers and other observers. Please do not use flash photography, cell phones, and other sources of white light while observing is taking place. In order to see faint detail in galaxies and nebulae, the eyes must be fully dark adapted, which takes several minutes. Any source of white light will interfere with this adjustment and will disturb other observers. 


Dress appropriately for the season! The dome room and deck of the observatory are both unheated, and the temperature often falls rapidly after sunset.


Children are welcome, but must be accompanied by an adult at all times. 

Smoking of any kind (including e-cigarettes) is strictly prohibited in or around the observatory and on the observing deck. Pets are not allowed in the building. 

bottom of page