Ключевые слова: astrology, astronomy, black, calendar, change, concept, cosmos, crescent, cycle, dark, eclipse, flat, full, gibbous, half, icon, illustration, isolated, lunar, month, moon, moonlight, nature, new, night, object, orbit, orbiting, phase, pictogram, planet, quarter, satellite, science, shadow, shape, sign, simple, sky, solar, space, sphere, star, surface, symbol, system, time, universe, waxing,