12. Aristillus

The eastern shore of Mara Imbrium is one of the most interesting areas of the Moon's surface. We see the lunar Alps, the solitary mountain Pico, and the triangle formed by the craters Archimedes, Autolycus, and Aristillus. Not far from Autolycus Luna two landed.

ALPES VALLIS - (See chart 4)

ARISTILLUS - Aristillus. (Born about 280 BC, Greece). One of the first Astronomers of the Greek-Alexandrian School. Lived in Alexandria, Egypt).

Crater. (55 km /34 Mi ø ) (Dept: 3,650 m /11,975 ft), (34°N, 1°E) Ray crater, forms a pair with Autolycus. Circular formation. Steep and chaotic slopes.    High walls with terraces. Flat floor. Three central mountains, 900 m / 2,953ft high.

AUTOLYCUS - Autolycus of Pitane (Αὐτόλυκος ὁ Πιταναῖος) (Born about 360 BC, Pitane, Aeolis, Western Anatolia - died about 290 BC) Greek astronomer, mathematician, and geographer.

Crater. (39 km /24.5 Mi ø ) (Dept: 3,430 m /11,253 ft) (30.7° N, 1.5° E) Forms a triangle with Aristillus and Archimedes. Circular formation. Very steep slopes supporting the craterlet Autolycus A to the East. High walls, with terraces a flat chaotic floor a central mountain  and hills.

CASSINI - 1. Giovanni Domenico Cassini, 1625 - 1712. Italian - French Astronomer. found the solar parallax, discovered 4 more moons of Saturn, measured the rotation of Jupiter, and the "Cassini divide" in the ring system of Saturn. - 2. Jaques J. Cassini (1677 - 1756) Son of G.D.Cassini, and director  of the Observatoire de Paris.

Crater. (60 Km /35 Mi ø ) (Dept: 1,240 m /3,800 ft) (39 N, 4 E) Flooded by lava. Cassini A, and B are situated inside Cassini.

Crater Cassini A. (17 km /11 Mi ø ) (Dept: 2,830 m /9,285 ft) Situated inside Cassini. (As inside B.)

KIRCH - Gottfried Kirch, 1639 - 1710. German Astronomer. Discoverer of the Comet of 1680.

Crater. (12 Km /7 Mi ø ) (Dept: 1,830 m /5,500 ft) (39.2° N, 5.6° W) Sharp edges, bowl shaped circular formation with steep slopes and  high walls. Rounded floor. A number of smaller craters are nearby.

MARE IMBRIUM - See Map 11.

MONTES ALPES - Alps. Named so by Hevelius. Designation for the mountains on the North-Eastern edge of Mare Imbrium. Named after the Alps in Europe.

Montes.  (Length: 180 km /111 Mi) (With: 20 km /12.5 Mi) (Height max: 2,400 m /7,300 ft) (46.4° N, 0.8° E) The ridge is approximately 180 km long, consisting of mountains, mountain massifs, and deep valleys, like Alpes Vallis, which divides the Mountain range in two parts. (See chart 4.)

MONS BLANC - Mons Blanc was named after Mont Blanc, a mountain in the Alps on Earth.

Mountain. (25 Km /16Mi ø ) (Height: 3,600 m /11,811 ft) (45°N, 1°E) Mons Blanc is the tallest mountain in the Montes Alpes range on the Moon.

MONTES SPITZBERGENSIS - Spitzbergen. Named so by Mary Blagg, because of their  likeness to the Islands of Spitsbergen on Earth.

Mountain. (60 km x 25 km /37 Mi x 15.5 Mi ø ) (Height: 1,400 m /4,200 ft) (34.6°N, 5.4°W)    (35.0°N, 5.0°W) Mountain range with peaks up till 1500m. Lava flooded valleys. Long shadows when the sun is low in the sky, during the lunar dawn or dusk.

PIAZZI SMYTH - Charles Piazzi Smyth. (Born: Great Britain, 1819 - Died: 1900) British Astronomer, Selenographer. Director of the Edinburgh Observatory. Author of a Pseudo-Scientific    a book on numerology concerning the Cheops Pyramid.

Crater. (12, 8 km /8 Mi ø ) (Dept: 2,530 m /7,700 ft) (41.9° N, 3.2° W) Bright circular formation, bowl shaped, sharp edge, high walls, rounded floor.

 PITON - Mount Piton, (Mons Piton was named for a peak on Tenerife Island.)

Mountain. (26 Km /15 Mi ø ) (Height: 2,250 m /6,800 ft) (41.0° N, 1.0° W) This peak can cast  long shadows when the sun is low in the sky during the lunar dawn or dusk.

12.