Van Maanen 2 [SEP] discoverer or inventor
Maanen, Van Maanen 2 was the third white dwarf identified, after 40 Eridani B and Sirius B, and the first that was not a member of a multi-star system.
Observation history.
While searching for a companion to the large-proper-motion star Lalande 1299, in 1917 Dutch–American astronomer Adriaan van Maanen discovered a star with an even larger proper motion located a few arcminutes to the northeast. He estimated the annual proper motion of the latter as 3 arcseconds. This star had been
Tesla (crater)
Tesla is a lunar impact crater that is located on the Moon's far side, just to the southeast of the larger H. G. Wells. About one crater diameter to the southwest of Tesla is Kidinnu, and to the southeast is Van Maanen. The crater is named after Serbian American inventor Nikola Tesla.
Tesla is a circular, bowl-shaped feature. There are a pair of small craterlets in the southern inner wall, but the crater is otherwise free of overlapping craters of significance. Only