Mare Serenitatis

Valentine Dome

. HBegP

Rimae rfi ^-Theaetetus

Valentine Dome

Rimae rfi ^-Theaetetus

MontfeS Caucasus, Cassini, EudOXÜS & Aristotel&s 2004.12.i9 -13:09 ITT Aga 7 days. 10-ln f/6 + 2.5X + Tollcam (mosaic)

MontfeS Caucasus, Cassini, EudOXÜS & Aristotel&s 2004.12.i9 -13:09 ITT Aga 7 days. 10-ln f/6 + 2.5X + Tollcam (mosaic)

Calippus 10.70 E 38.90 N

A crater on the highlands of Montes Caucasus, 32 km in diameter. Its eastern wall looks linear. Its western wall is slided. Calippus C (40 km) is a bay-shaped crater facing Mare Imbrium.

Alexander 13.50 E 40.30 N

A heavily eroded walled plain, 81 km in diameter. Its northeastern wall is obliterated. Montes Alpes 0.80 W 46.40 N

A mountain range named by the Polish astronomer Hevelius (1611-1687) on the northeast edge of Mare Imbrium, length 280 km and average height 2400 m. Under low Sun angles, the mountain peaks cast a forest of spectacular spiky shadows. The southern end of Montes Alpes has two capes named Promontorium Agassiz and Promontorum Deville.

Mons Blanc (Mont Blanc) 1.00 E 45.00 N A mountain adjoining Montes Alpes, 3600 m high, base 25 km.

Mons Piton 1.10 W 40.60 N

An isolated mountain, 2300m high, base 25 km. It casts long shadow under low Sun angles.

Vallis Alpes 3.2°E 48.5°N Vallis Alpes is a prominent landmark, length 166 km and width up to 11 km. It is radial to Mare Imbrium, appearing like a blade to bisect Montes Alpes. Under appropiate illumination and good seeing condition, a very narrow central cleft can be spotted with an 8-inch telescope. Vallis Alpes is a graben (sunken area between faults) produced at the time of the Imbrium basin-forming impact. The valley was subsequently filled by volcanic material. The central cleft is less than 500 m in width and could be a lava channel running downhill along the back slope of Alpes.

Vallis Alpes 2004.09.05 21:31 - 21:33 UT Age 21 days. '0-in f/6 + 2.5X + 1.6X + ToUcam

V- * " ' ' w>*i r 'kY/Jk* A « Mw. :ffl ir I t^»"" 1 r J J r-H* A

Vallis Alpes & its narrow central cleft. 2fl05.11.11 13:22 UT Age 9.5days. 10-in Newtonian + 4X+ToUcam

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