Western part of Mare Tranquillitatis, interesting
Rille system at the edge of the Mare. Pronounced Ridges along the Lamont
Dominique François Arago
(1786 - 1853) French astronomer and physicist.
) (Dept: 1,800m /5,905ft) (6.2°N, 21.4°E) Submerged in the
Mare. The rim has a bulge in the western wall. There is a central ridge
that runs towards the northern wall.
Philip III Arrhidaeus (Φίλιππος Γ' ὁ
Ἀρριδαῖος) (Died: 317 BC) Macedonian king. Halve
brother of Alexander the Great.
) (Dept: 1,800m /5,905ft) (4.6°N 17.3°E) Forms a double crater with
Dionysius (First century AD) Legendary
) (Dept: 2,700m /8,858ft) (2.8°N, 17.3°E)
Circular, bright. Ray system.
John Lamont (1805 - 1879) German
astronomer. His most important work was on the magnetism of the Earth.
) (Dept: flooded) (5.0°N 23.2°E) Flooded, very low rim. Ghost crater.
Location of a Mascon.
Sir Thomas Maclear (1794 - 1879)
He worked with
until 1838, and performing a survey of the southern sky.
) (Dept: 600m /1,968ft) (10.5°N, 20.1°E) Interior submerged in
lava, all that remains of this crater is a narrow rim projecting above the
surrounding mare. The rim is irregular but uniform in width and is
Henry Manners (1800
- 1870) English admiral and astronomer.
Administrator for the Royal Society.
(Dept: 1,700m /5,577ft) (4.56°
N, 19.99° E) Circular and bowl-shaped. Raised rim, flat floor.
Carl Ritter (1779-1859) German
geographer and surveyor. 2.
August Ritter (1826 - 1908) German
astrophysicist and engineer.
(Dept:1,300m /4,265ft) (1.8°N, 19.2°E) Forms a pair with Sabine.
Sir James C. Ross (1800-1862) English
polar explorer, geographer and surveyor.
Frank E. Ross (1874 - 1966)
(Dept: 1,800m /4,950ft)
(11.7°N, 21.7°E) Circular with a small
Sir Edward Sabine (1788 - 1883) Irish
physicist, mathematician, and astronomer.
) (Dept: 1,300m /4,265ft)
Formes a pair with Ritter. Circular, small central hill.
Johann F. J. Schmidt (1779-1859) German
Bernhard Schmidt (1826 - 1908) German
astronomer and optical-engineer.
Otto Yulyevich Schmidtt (О́тто
Ю́льевич Шмидт) (1826 - 1908) Russian physicist, mathematician and
) (Dept: 2,300m /7,546ft) (1.0°N, 18.8°E) Circular, crisp,
N, 25.0° W
01.4° N, 22.1° E
01.3° N, 23.7° E
Sosigenes (46 BC) Greek astronomer.
Consulted by Caesar about the changes to the calendar.
(Dept: 1,700m /5,577ft) (8.7°N 17.6°E) Circular crater. Small central hill.
MARE TRANQUILLITATIS - Sea of
Tranquility Named so by
) (8.5°N, 31.4°E) In the western part ridges, and domes.
Landing site (20:17:40 GMT, July 20, 1969
AD) The first manned landing on the Moon.
) (Height: 1,300m /4,265ft) (00°41′15″N, 23°26′00″E ) Tranquillity Base.