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Jeffrey Hall, Director

Jeff studies the Sun and Sun-like stars. He works on Lowell’s Solar-Stellar Spectrograph project (SSS) for long-term monitoring of the Sun and solar-like stars to learn more about the Sun and its effects on Earth’s climate. This project has been underway since 1994; Jeff and colleague Wes Lockwood have accumulated over 5,000 observations of the Sun and more than 20,000 of Sun-like stars.

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