1 Jan 1840 Jahr - Wilhelm Beer and Johann von Maedler's discovery
Beschreibung:
Wilhelm Beer (1797 - 1850) and Johann von Maedler (1794 - 1874) observe Mars over periods of 759, 1604, and 2234 days, and determine that the rotational period of Mars is 24 hours, 37 minutes, 22.6 seconds, which is surprisingly close to the currently accepted value of 24 hours, 37 minutes, 22.7 seconds.
Zugefügt zum Band der Zeit:
VIS 41 Mars Timeline
VIS 41 Assignment 2
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