1 янв 1917 г. - Adriaan Van Maanen makes the first observation of an exoplanet, then not recognised as such.
Описание:
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.Добавлено на ленту времени:
Дата:
1 янв 1917 г.
Сейчас
~ 108 г назад