Observing at Mount Wilson

For an experience of a lifetime, view celestial objects through our historic 60-inch or 100-inch telescopes. These are the largest telescopes in the world that are available for public use.

Visitors gathered around a large telescope inside a Mount Wilson Observatory dome, illuminated by red lighting to preserve night vision. One person looks through the eyepiece while others observe or wait, highlighting public engagement with astronomical equipment.

60-inch Telescope

Mount Wilson’s 60-inch telescope provides incredible views of some of the most beautiful objects in the night sky and is among the largest in the world accessible to public viewing.

100-inch Telescope

The 100-inch telescope was used by many of the greatest astronomers of the Twentieth Century. Imagine looking through the telescope used by Edwin Hubble in the 1920s to measure the expansion of the Universe.