Telegram to Harvard College Observatory Concerning Newly Identified Trans-Neptunian Body

Telegram to Harvard College Observatory Concerning Newly Identified Trans-Neptunian Body

Pluto; Planet X; Astronomy; Planetary discovery; Trans-Neptunian body; Harvard College Observatory; Putnam, Roger L.; Lowell Observatory.

Sole trustee Roger L. Putnam of Lowell Observatory informs Harvard College Observatory of a newly identified trans-Neptunian body which Lowell Observatory believes to be a new planet. After the amateur astronomer Clyde Tombaugh discovered the object, the astronomers at Lowell took more photos and conducted research to solidify what they hoped to be true: the existence of Percival Lowell's predicted "Planet X."

Putnam, Roger L.

1930-03-13

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Telegram

English

Text

Pluto Collection. a_Pluto_0064.tif