27.Plutarchus

The eastern part of Mare Crisium and the edge of the visible part of the Moon. Good orientation points on the chart are, Eimmart, Alhazen, and Plutarchus. When libration is favorable Goddard with its dark floor, and Mare Marginis are clearly visible.

ALHAZEN - Abu Ali al Hasan (ca. 987 - 1038 AD) ( أبو علي، الحسن بن الحسن بن الهيثم‎ ) Arabian physicist, scientist, polymath, mathematician, astronomer and philosopher.

Crater (32km /20Mi ø ) (Dept: 2,000m /6,562ft) (15.9°N, 71.8°E) Inner walls and  floor rugged, circular rim.

MARE ANGUIS - Mare Anguis was named Julius Heinrich Franz (1913). It has the shape of a snake. Long and winding.

Mare. (150Km /93Mi ø ) (22.6°N, 67.7°E) Very flat dark floor. Irregular in shape.

CANNON - Annie Jump Cannon (1863 - 1941) American astronomer whose cataloging work was instrumental in the development of contemporary stellar classification. (OBAGKM).

Crater. (56km /35Mi ø ) (Dept: unknown) (19.9°N, 81.4°E) Worn and eroded, floor flooded.

MARE CRISIUM - Mare Crisium was named in 1651 by astronomers Francesco Grimaldi and Giovanni Battista Riccioli in their lunar map Almagestum novum.

Mare. (555Km /345Mi ø ) (176,000 km²  /68,000 Mi ² ) (17.0°N, 59.1°E) Very flat floor, with a ring of wrinkled ridges toward its outer boundaries.

EIMMART - Georg Christoph Eimmart (1683 - 1705) German amateur astronomer  and engraver. Father of astronomer Maria Clara Eimmart.

Crater. (46km /29Mi ø ) (Dept: 3,200m /10,499ft) (24.0°N, 64.8°E) Rim lightly eroded. On the rim Eimmart A.

GODDART - Robbert. H. Goddard. (1882 - 1945) American rocket scientist, physicist, inventor and engineer.

Crater. (93km /58 Mi ø ) (Depth: 1,710m /5,610ft) (14.8°N, 89.0°E) Lava flooded. Twin crater with Ibn Yunus.

HUBBLE - Edwin Hubble. (1889 - 1953) American astronomer. Discovered that the universe is expanding.

Crater. (81km /50Mi ø ) (Depth: 3,160m /10,367ft) (22.1°N, 86.9°E) Circular, small central mountain. Formerly called Plutarch A.

LIAPUNOV - Alexander M. Liapunov (Πρόκλος ὁ Διάδοχος) (1857 – 1918) Russian mathematician and Engineer.

Crater. (66km /41Mi ø ) (Dept: Unknown) (26.3°N, 89.3°E) Deformed, attached to the south-southeastern rim of the larger walled plain Rayleigh and attached to the western rim of the much larger walled plain Joliot.

MARE MARGINIS - Mare Marginis was named by Julius Heinrich Franz (1913).

Crater. (360km /224Mi ø ) (62,000² km /23,938Mi ² )  (13.3°N, 86.1°E) Irregular outline, dark floor.

OCEANUS PROCELLARUM - See Map 29.

PLUTARCHUS - Plutarch (Πλούταρχος) (ca. 46 - 120 AD) Greek biographer. Author of  "On the face of the Moon".

Crater. (68km /42Mi ø ) (Dept: 2,800m /8,000ft) (24.1°N, 79.0°E) Rim with two craterlets nested into it, central mountain.

 

 

 

 

 

 

 

 

 

 

 

 

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RAYLEIGH - Lord John William Strutt-Rayleigh (1842 - 1919) English physicist. Discoverer of the argon in 1894. Nobel Price 1904.

Crater. (107m /66Mi ø ) (Dept: 1,070m /3,510ft) (29.3°N, 89.6°E) Walled plain. Eroded. Rim incomplete. Rayleigh D, (22km), and Rayleigh B, (14km), occupy part of the floor.

SENECA - Lucius Annaeus Seneca. (4 BC - 65 AD) Roman philosopher and politician. Author of "Quaestiones Naturales". In this work he stated that comets are heavenly bodies.

Crater. (54km /34Mi ø ) (26.6°N, 80.2°E) Irregular crater. Made out of two craters, one north, one south, obliterating each other, with a central mountain in the lower part

 

 

 

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