PSU-Greenbush Astrophysical Observatory

NOTE: Due to the coronavirus outbreak, all observatory nights are canceled until further notice. 

2019-20 Observatory Event Calendar

*All observatory events are free and open to the public.

7 p.m. Friday, Sept. 6, 2019 - Jupiter and Saturn 

The two largest planets in our solar system will be well positioned in the southern sky for observation during September. Come learn about these giant planets and the many fascinating parts of these miniature solar systems.

7 p.m. Friday, Oct. 4, 2019 - Mars

The Red Planet returns! Fall of 2019 will be another excellent opportunity to observe Mars. Come learn about this exciting world and the many scientific missions from the past, present, and future of space exploration.

7 p.m. Friday, Nov. 8, 2019 - Milky Way and Galaxies

The Milky Way is a stunning object in the sky, but also the name for the galaxy where our solar system orbits. This paradox is often confusing, but we will explore not only how our galaxy functions and explore some of the remarkable astronomy done to help us understand this large structure of the universe. 

7 p.m. Friday, Dec. 20, 2019 - Winter Solstice and the Seasons

The end of the calendar year coincides with the orbit of the Earth around the Sun. One particular date is called the Winter Solstice, which marks the darkest day of the year in our hemisphere. Come learn about how and why our seasons change and how that is related to the patterns of stars in the sky.

7 p.m. Friday, Jan. 17, 2020 - Black Holes

Black holes are among the most mysterious and poorly understood objects in the universe. They are often a popular target of science fiction writers and this leads to many misunderstandings. Come learn about what we know and also do not know about black holes.

7 p.m. Friday, Feb. 28, 2020 - Dwarf Planets

During the last 15 years the discovery of tiny planets in our solar system has led to a new philosophy for classifying objects in our solar system. This somewhat controversial idea has also opened a new area of study in astronomy looking at what some of these magnificent dwarf planets have to teach us.

7 p.m. Friday, March 27, 2020 - Venus

Brilliant Venus will be shining brightly in the evening sky during late Winter and early Spring during 2020. This planet is often called Earth’s sister planet as the two share many similarities. However, some key differences make the difference when it comes to the ability to support life.

7 p.m. Friday, April 24, 2020 - Solar System Leftovers

Most students learn in grade school that our solar system is composed of a handful of planets orbiting a central star we call the Sun. However, there is a great deal more going on in our celestial neighborhood and many of these smaller leftover pieces could provide a wealth of resources and information that could hold secrets waiting to be discovered.  

8 p.m. Friday, May 29, 2020 - Exoplanets

During the last couple of decades, many discoveries have been made regarding planets orbiting other stars. These remarkable findings have changed how astronomers consider the basic nature of our universe and altered the odds of finding life somewhere other than Earth.

8 p.m. Friday, June 26, 2020  - Moons of Our Solar System

Our solar system is a vast and complex arrangement of many worlds orbiting our Sun.  On this evening we will discuss some of the several large worlds orbiting other planets that we call “moons.”  These bodies hold many secrets waiting to be discovered in the near future.