33
/fr/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
3464186
310040
2

1 janv. 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.

Ajouté au bande de temps:

9 déc. 2019
0
0
409

Date:

1 janv. 1917
Maintenaint
~ Il y a 108 ans

Les images: