METEO AND SEEING FORECASTS
Area around Rupes Recta (Straight Wall) is plenty of interesting features. Thanks to good seeing of the night, and the B filter, a number of subtle details have beeing recorded: the rima of Birt (left) appears as constitued by a chain of craterlets, and the interior of Thebit (right) looks very irregular. A very faint rima can be seen on the upper part of the Rupes, running orthogonally to it. Lunar North on top. Cassegrain 12" f/20 ASI178MM Astronomik B filter
Tycho is one of the most prominent crater of the Moon, not because its size (barely reaching 90 km) but for the extremely high albedo both of the crater and its exceptionally wide ray system. The well defined terraces, and the optically immature rays (not visible here) concur in placing Tycho easily it in the Copernican lunar period, reserved to the youngest features of our satellite. In this image (south is on top) is emphasized a long chain of craterlets, running diagonally from the western wall of the crater. Classical Cassegrain 12" f/20 ASI178MM Astronomik G filter
Thanks to low illumination angles you can easily see the well known system of rilles (a delicious eyepiece sight!), the smallest of which have a width around 600 meters, comparable to Vallis Alpes central rima. Good, despite not exceptional, seeing conditions. CFF 12" f/20 Classical Cassegrain ASI178MM Astronomik G filter
