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jan 1, 1917 - Adriaan Van Maanen makes the first observation of an exoplanet, then not recognised as such.

Description:

Adriaan Van Maanen was a Dutch-American astronomer. Strangely enough, he was known for faulty results due to his device, a stereo blink comparator, using 10-20-year-old plates.

Added to timeline:

Space

ByDarren GUAN
9 Dec 2019
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409

Date:

jan 1, 1917
Now
~ 108 years ago

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