Ключевые слова: arcs, astronomy, astrophotography, background, blue, blur, celestial, circle, colorful, dark, evening, exploring, exposure, glow, harmony, idyllic, landscape, light, lines, long, meadow, motion, nature, night, nobody, north, peace, rain, reflected, rotation, science, serene, serenity, silhouette, sky, space, star, starry, summer, telescope, traces, trails, tranquil, tranquility, twilight, unique, universe, vertical, way,