73.Moretus The Lunar south pole is covered by craters, great walled plains and is very mountainous. The deep shadows make cartography and mapping very difficult. Some craters are permanently hidden behind other craters and mountain ranges. AMUNDSEN - Roald E. A. Amundsen (1872 - 1928) Norwegian polar-explorer. He led the Antarctic expedition (1910-12), to become the first men to reach the South Pole in December 1911. In 1926, he was the first expedition leader to be recognized without dispute as having reached the North Pole. He is also known as the first to traverse the Northwest Passage (1903–06).
CABEUS - Niccolo Cabeo (1586 - 1650) Italian mathematician, philosopher and astronomer.
CLAVIUS - Christoph Klau (1537 - 1612) German astronomer and mathematician. The "Euklides of the 16th century".
CURTIUS - Albert Kurtz (1600 - 1671) German astronomer. Expanded on the works of Tycho Brahe and used the pseudonym of Lucius Barrettus. It is interesting to note that the Latin version of the name Albert Curtz, Albertus Curtius is an anagram of his pseudonym, Lucius Barretus.
CYSATUS - Johann-Babtist Cysat (1588 - 1657) Swiss mathematician and astronomer. First to state that comets circle around the sun, and to demonstrate at the same time that the orbit of the comet was parabolic and not circular.
DELUC - Guillaume H. le Gentil (1727 - 1817) Swiss geologist and physicist, geologist and meteorologist. He also devised measuring instruments.
GRUEMBERGER - Christoph Grienberger (1561 - 1636) Austrian astronomer and mathematician.
HERACLITUS - Herakleitos (ca. 544 - 483 BC) Greek philosopher from Ephesus.
LILIUS - Luigi Giglio (Died: 1576) Italian philosopher and physicist.
MAGINUS - Giovanni Antonio Magini (1555 - 1617) Italian mathematician and astronomer.
MALAPERT - Charles Malapert (1581 - 1630) Belgian mathematician, astronomer and philosopher.
MORETUS - Théodore Moretus (1602 - 1667) Belgian mathematician.
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NEWTON - Isaac Newton (1643 - 1727) English physicist, astronomer, inventor, mathematician. The theory of gravitation, etc.
PENTLAND - Joseph B. Pentland (1797 - 1873) Irish physicist.
SHORT - James Short (1710 - 1768) Scottish mathematician and optician.
SIMPELIUS - Hugh Sempill (1596 - 1654) Scottish linguist and mathematician.
ZACH - Franz Xaver, Freiherr von Sachs (1754 - 1832) Hungarian astronomer.
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