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University of Rochester

Total Solar Eclipse

Countdown to totality

Welcome to the University of Rochester hub for all things on the total solar eclipse occurring April 8 at 3:20 p.m. This is your go-to resource for the big day, including where and when to watch and how to protect your eyes. Plus, you’ll find a variety of “Did you know?”-type information to prepare you for the moment of totality.

space rarity

‘A remarkable accident’

On April 8, Rochester will witness the marvel of cosmic happenstance that is the total solar eclipse. It hasn’t happened here since 1925, and it won’t happen again until 2144. Here’s what you need to know to make the most of this extraordinary event.

Harkness and light

Eclipse helped Rochester alumnus see solar corona in new light

Observations made by William Harkness during the total solar eclipse of 1869 led to a pivotal discovery about the solar corona.

What did the spectroscope say to the sun during the eclipse?

Halo! Learn more about William Harkness

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