Ключевые слова: astronomy, background, basic, color line, commerce, development, discover, discovery, education, equipment, eye, flat, focus, future discoveries, glass, icon, icon set, icons, illustration, instrument, isolated, learning, lens, lesson, line, look, magnification, magnify, moon, object, observe, optical, optics, physics, planetarium, research, responsive, science, scope, sign, space, spy, spyglass, stars, telescope, tool, tripod, universe, view,