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description=Explore the Moon. Discover its dramatic features and phenomena - often beautiful, sometimes bizarre, always changing. Inconstant Moon will take you on a new tour each night, with maps, photos, animations, selected links and even music!;
keywords=Moon, Lunar, Astronomy, Astronomical, Selenography, Selenographical, Selenology, Selenological, observations, guide, charts, maps, tours, dates, times, calendar, features, disc, disk, surface, day, daily, night, nightly, sky, month, monthly, phases, crescent, gibbous, quarter, full, new, terminator, solar, eclipse, umbral, total, penumbral, partial, shadow, cone, water, NASA, Apollo, landings, Bay, Crater, Mare, Mons, Montes, Mountains, Ocean, Oceanus, Rupes, Scarp, Sea, Sinus, Valley, Vallis, Crises, Clouds, Serenity, Tranquility, Tranquillity, Rainbows, Storms, Albategnius, Alphonsus, Alps, Altai, Apennines, Aristarchus, Arzachel, Atlas, Carpathian, Catharina, Caucasus, Clavius, Copernicus, Crisium, Cyrillus, Galileo, Hercules, Hesiodus, Imbrium, Iridium, Janssen, Kepler, Linne, Pico, Piton, Plato, Posidonius, Procellarum, Ptolemy, Pyrenees, Recta, Rheita, Serenitatis, Shickard, Straight, Wall, Thebit, Theophilus, Tranquillitatis, Tycho, Wargentin;

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inconstant moon multimedia tours of the lunar surface explore the moon discover its dramatic features and phenomena often beautiful sometimes bizarre always changing inconstant moon will take you on a new tour each night with maps photos explanations animations selected links and even music the moon is the most easily observable astronomical object and also the most rewarding for the beginner it is a breathtaking spectacle through even a modest optical instrument and as the knowledge and resources of the astronomer increase it will continue to provide fascinating new challenges and insights inconstant moon is intended as both an introduction to lunar astronomy for the beginner and an ongoing reference point for the more experienced observer lunar tours cyclopedia selenica selenographia what s new site map awards