Hall was given responsibility for the USNO 26-inch (66-cm) telescope, the largest refracting telescope in the world at the time
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Hall was given responsibility for the USNO 26-inch (66-cm) telescope, the largest refracting telescope in the world at the time
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-17 from Wikipedia. The archived copy is preserved so this citation survives link rot.