10.Sinus Iridium

10.Sinus Iridum

North Western part of Mare Imbrium which contains the Sinus Iridum, the Rainbow bay nearby which (on December 14, 2013), the Chinese Lander -Rover combination "Jade Rabbit" landed following Luna 17, with rover Lunachod, (November 15, 1970), 43 years earlier. The Edge of the Rainbow bay is formed by the Jura mountains, which end in two cape: Promontorium Laplace (NE), and Promontorium Heraclides (SW) both embracing the Rainbow Bay.

CARLINI - Francesco Carlini (1783 - 1862) Italian Astronomer, worked in the field of celestial mechanics, perfected the theory on the movements of the Moon.

Crater. (11,4 km /7 Mi ų ) (Dept: 2,200m /6,700ft) (33.7°N 24.1°W) Bowl-shaped, small central floor, high albedo.

HEIS - Eduard Heis. (18 February 1806, Cologne - 30 June 1877 in Münster) German Astronomer, Mathematician, Author of "Atlas Coelestis Novus" Cologne, 1872. Variable star specialist.

Crater. (15 Km / 9 Mi ų) (Dept: 1,910 m /5,800 ft) (32.4° N, 31.9° W) Isolated circular formation. Steep slopes. High walls supporting Heis A to the North, flat floor.

HELICON - Helicon. Astronomer born in Cyzicus (Κύζικος) 450 BC. Greece. Disciple of Plato and Eudoxus. Predicted an eclipse of Sun.

Crater. (26 Km /15 Mi ų) (Dept: 1,910 m /5,800 ft) (40.4° N, 23.1° W) Circular formation with inner walls that curve down to a relatively flat floor, tiny craterlet located at the midpoint of the interior, and a small craterlet along the southwestern rim. Forms a pair with Le Verrier.

PROMONTORIUM HERACLIDES - Heraclides of Pontus (Ἡρακλείδης ὁ Ποντικός).Greek Astronomer. (Born: Heraclea Pontica in 390 BC - Died: Heraclea Pontica 310 BC) Disciple of Plato. Heraclides proposed that the apparent daily motion of the stars was created by the rotation of the Earth on its axis once a day.

Cape. (50 km /30 m) (Dept: 1,700 m /5,200 ft) (41.0° N, 34.0° W) Small, but high mountainous Cape to the end of Montes Jura. Western beginning of Sinus Iridum. On some older maps shown as the buste of Genevičve de Laistre, the Lady of the Moon. Wife of Cassini, who smuggled her on the Moon map he drew. 'Carte de la lune' .

HERSCHEL (CAROLYN) - Carolyn Lucretia Herschel (16 March 1750 - 9 January 1848) German Astronomer. Discoverer of several comets and in particular the periodic comet 35P/Herschel-Rigollet, which bears her name.

Crater. (14 Km /8 Mi ų ) (Dept: 1,850 m /5,600 ft) (34.5° N, 31.2° W) Situated on a wrinkle ridge. Isolated circular formation. Few high walls. Flat floor filled with lava.

MARE IMBRIUM - Sea of Rains. Named by Giovanni Battista Riccioli in 1651. (Riccioli's Moon Map)

Mare (1,145 km / 711 Mi ų ) (32.8° N, 15.6° W) (830,000 km² ) Second largest lunar sea. Very flat floor with numerous wrinkle ridges at the periphery. Contains the 1st discovered Mascon.

SINUS IRIDUM - The feature was given the Latin name for the Bay of Rainbows by Giovanni Riccioli in 1651. Planned landing site of Chang'e 3, Jade Rabbit, China's 2013 lunar exploration mission, which landed nearby in Mare Imbrium.

Bay. (411 Km /157 Mi ų ) (45.0° N, 32.0° W) Very large crater shaped formation of 237,000 km². Steep slopes constituted by North slopes of Montes Jura. Walls constituted by Montes Jura gobbled to the South in the lava of Mare Imbrium. Flat floor filled with lava and situated 600 m lower than Mare Imbrium.

MONTES JURA - Montes Jura, named after the Jura Mountains in western Switzerland. Named by German cartographer Ernst Debes

Montes. (Length: 422 km) (Dept: 6,00 0m /18.200 ft) (47.0° N, 37.0° W) Mountainous North wall of Sinus Iridum. Starting at Promontorium Laplace (NE), and ending with Promontorium Heraclides (SW). Composed of several parallel and concentric summit lines. Peter Grego describes a figurine of "The Moon Maiden", seeing her facial profile in Promontorium Heraclides.

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PROMONTORIUM LAPLACE - Cape Laplace. Named after, Pierre Simon marquis de Laplace. (Born: Beaumont en Auge, France, 1749 - Died: Paris, France, 1827) French Astronomer mathematician and physicist. Member of the Academy of Sciences in 1783. Came up with the theory of the nebular origin of the solar system in 1796. Works in celestial mechanic from 1798 to 1825. Theory of probabilities in 1812. Works on gases and the sounds.

Cape. (Dept: 2,600 m /7,900 ft) (46.0° N, 26.0° W) Raised mountainous cape at the end of Montes Jura. East end of Sinus Iridum.

SHARP - Abraham Sharp. (born in Horton Hall in Little Horton, Bradford,1653 – Died: 18 July 1742) English mathematician and astronomer and computer, Sharp calculated pi to 72 decimal places.

Crater. (Dept: 3,200 m /9,700 ft) (41 km /24 Mi ų ) (45.7° N, 40.2° W) Surrounded by a rugged region of mounts and rises. Ridges are joined to the north and south ends of the rim. The crater has a low central peak at the midpoint of the floor.

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