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The Moon. Drawing of Features Quick! Use scale 0=black, 10=white Near terminator Quarter phases. Best Features. Well defined craters Ridges Mountain Chains Discolorations. Copernicus (39). Tycho (86). Plato (72). Kepler (57). Archimedes (24). Alphonsus (22). Theophilus (84).
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The Moon • Drawing of Features • Quick! • Use scale • 0=black, 10=white • Near terminator • Quarter phases
Best Features • Well defined craters • Ridges • Mountain Chains • Discolorations
Copernicus (39) Tycho (86)
Plato (72) Kepler (57)
Archimedes (24) Alphonsus (22) Theophilus (84)
Alps Mts (B) Apennine Mts (F) Altai Mts (E)
Lunar Transient Phenomena • Unpredictable • Flashes of color/light • Outgassing? • Volcanism? • Illusions? • Impacts?
Occultations Timing is everything!
International Occultation Timing Association (IOTA) • Maps • Notice of events • Object types (planets, asteroids, stars) • Location dependent • Time dependent • Hints for observations, recording
Danjon Brightness Scale Brightness best measured at mid-totality L = 0 Very dark eclipse. Moon almost invisible, especially at mid-totality. L = 1 Dark Eclipse, gray or brownish in coloration. Details distinguishable only with difficulty. L = 2 Deep red or rust-colored eclipse. Very dark central shadow, while outer edge of umbra is relatively bright. L = 3 Brick-red eclipse. Umbral shadow usually has a bright or yellow rim. L = 4 Very bright copper-red or orange eclipse. Umbral shadow has a bluish, very bright rim.
Future Total Lunar Eclipses • December 21, 2010 • April 15, 2014 • October 8, 2014 • April 4, 2015 • September 28, 2015