The north-western part of Mare Crisium is surrounded by mighty mountain
ranges. If the light comes in at a low angle we see many ridges
crisscrossing the mare. The rays of Proclus reach till here, and when the
Sun is high in the local sky, they become very bright for observers on
Cleomedes (1th Century BC) (Κλεoμήδης)
Greek astronomer who is known chiefly for his book "On the Circular
Motions of the Celestial Bodies".
) (Dept: 2,700m
/8,858ft) (27.7°N, 55.5°E) Heavily worn and eroded, especially
along the southern part of the wall.
MARE CRISIUM - Mare Crisium was named in 1651 by astronomers
Francesco Grimaldi and
Giovanni Battista Riccioli in their lunar
/68,000 Mi ²
) (17.0°N, 59.1°E) Very flat floor,
with a ring of wrinkled ridges toward its outer boundaries.
Ernst Debes. (1840 -1923) German
cartographer. Worked on school atlases, and a Moon atlas.
) (Dept:1,050m /3,445ft) (29.5°N, 51.7°E) Rim strongly
eroded, southern edge covered by satellite crater Debes A.
Gabriel Delmotte (1876
- 1950) French selenographer. Author of "Recherches sélénographiques et
nouvelle théorie des cirques lunaires".
) (Dept:3,000m /9,843ft) (27.1°N, 60.2°E) Roughly
circular, sharp-edged, slightly angular rim, slender inner wall.
PROMONTORIUM OLIVIUM - Two Capes
pointing towards each other, at the western edge of Mare Crisum. (Named by
William Birt) Inbetween the two capes,
Bridge, as was suggested in the past, by
John J O'Neill
but two craters.
49.5°E) (In)Famous capes. In the 1950s a bridge was spotted in-between the
two capes...(Since then the Lunar Authorities have taken it down).
Ambrosius Macrobius (4th century
AD) Greek/Roman grammarian and author.
Crater. (64km /40Mi
) (Dept:3,700m /11,200ft) (21.3°N, 46.0°E) Multi
terraced rim, central mountain, craterlets.
Benjamin Peirce. (1809 - 1880) American
astronomer and mathematician.
) (Depth: 1,800m /5,906ft) (18.3°N, 53.5°E) Bowl shaped, tiny
Jean Picard. (1620 - 1682) French
(Depth: 2,400m /7,874ft) (14.6°N,
54.7°E) Circular with many inner terraces, small central mountain.
Proclus Lycaeus (Πρόκλος ὁ Διάδοχος)
(412 – 485 AD) Greek philosopher. Called: "The Successor" (of
) (Dept: 2,400m /7,874ft) (16.1°N, 46.8°E) Object of high albedo, being
second only to Aristarchus in brightness. Ray system.
PALUS SOMNI -
Marsh of Sleep.
) (15.0° N, 44.0°) The surface has low ridges and patches of
14.6° N, 56.5° E
17.3° N, 58.3° E
François Felix Tisserand
(1845 - 1896)
French astronemer. Author of "Traité de mécanique céleste".
Observed the transit of Venus
in 1874. And in 1883 held the Chair of celestial mechanics at the
Sorbonne University in Paris..
) (Dept: 2,800m /8,000ft) (21.4°N, 48.2°E ) Eroded by impacts,
and covered with ray material from Proclus.
Johann G. Tralles (1763
- 1822) German physicist. Inventor of the alcoholmeter.
) (Dept: 3,350m /10,991ft) (28.4°N, 52.8°E) Strangely shaped
formation with an irregular edge. The rugged interior has the appearance of
three overlapping craters. Placed on the western rim of Cleomedes.
Charles T.Yerkes. (1837–1905) American
millionaire from Chicago.
financier of Yerkes Observatory. And at the time the world's biggest
) (14.6°N, 51.7°E) Almost completely flooded by lava leaving
only a shallow remnant of a rim.