Ключевые слова: abstract, astronomy, background, black, calendar, concept, cosmos, crescent, cycle, dark, earth, eclipse, full, half, illustration, isolated, light, lunar, month, moon, moonlight, mystic, nature, new, night, nighttime, orbit, phase, planet, process, quarter, revolution, round, satellite, science, sequence, shadow, sign, silver, sky, sphere, surface, symbol, time, waning, white,