60.Vendelinus

The eastern edge of the visible side of the Moon, with the grand walled plain of Humboldt, best to be viewed just after full Moon. The walled plain of Vendelinus is part of the crater chain Langrenius-Vendelinus-Petavius-Furnerius.

BALMER - Johann J. Balmer (1825 - 1898) Swiss mathematician and physicist, know for the "Balmer series" in the hydrogen spectrum..

Crater. (112km/70Mi ø ) (Dept: 1,960m /6,430ft) (20.27°N, 70.22°E) Remains of a lava flooded walled plain.

BEHAIM - Martin Behaim (Behem) (1459 - 1507) German sailor and cartographer. Maker of the oldest surviving Earth-globe.

Crater. (56km /35Mi ø ) (Dept: 2,100m /6,890ft) (16.59°S, 79.41°E) Walls terraced, low central peak, circular.

BARNARD - Edward Emerson Barnard  (1857 -1923) American astronomer. Gifted observational astronomer. Discoverer of Barnard's Star in 1916. 

Crater. (105km ø) (29.5°S, 85.6°E) Distorted by nearby impacts. Interior irregular. A pair of small craterlets lies near the center of the interior floor.

GIBBS - Josiah Willard Gibbs (1839 - 1903) American mathematician and physical-chemist.

Crater. (79Km/49Mi ø ) (Debt: 3,960m /12,990ft) (18.34°S, 84.23°E)  A recent small impact along the northeastern rim has produced a small ray system, central hill.

HECATAEUS - Hecataos (Ἑκαταῖος) (ca. 550  – 476 BC) Greek cartographer, first historian, and author from Milete. Author of an early World map. First to mention the Celts.

Crater. (143Km /89Mi ø ) (Debt: 4,780m /15,680ft) (22.12°S, 79.54°E ) Walled plain. Worn and Eroded.

HOLDEN - Edward S. Holden (1846 - 1914) American astronomer. First Director of Lick Observatory.

Crater. (47km /29Mi ø ) (Dept: 1,770m /5,810ft) (19.14°N, 62.48°E) Rim is impacted by a craterlet on the north-northwest, terraces along the northeast interior wall. Small crater on the floor just to the south of the midpoint. Satellite crater of Vendelinus.

HUMBOLDT - Wilhelm Freiherr von Humboldt (1767 - 1835) German statesman, philologist, linguist. Brother of Alexander von Humboldt.

Crater. (199km /123Mi ø ) (Dept: 5.160m /16,930ft) (26.85°S, 80.76°E) Walled plain, central mountains, concentric and radial rilles. Dark spots near the wall.

LAMÉ - Gabriel Lamé (1795-1870) French mathematician. Mathematics applied to engineering.

Crater. (84km /52Mi ø ) (Dept: 3.590m /11,780ft) (14.69°S, 64.48°E) The eastern crater rim overlaid by a series of overlapping craters, low outer rim.

LEGENDRE - Adrien-Marie Legendre (1752 - 1833) French mathematician. Number theory. Calculations of comet orbits.

Crater. (79km /49Mi ø ) (Dept: 2.700m /8,860ft) (28.98°N, 69.96°E) Rim eroded, many small craterlets along the rim and the sides of the outer wall. A small crater about 25 kilometers, (15Mi), in diameter lies across the southern rim.

60.