Ключевые слова: astronomy, atmosphere, background, cloud, cosmic, cosmos, ethereal, europe, evening, galaxy, glow, glowing stars, landscape, light, nature, night, night sky, night sky stars, night stars, nobody, noctilucent, noctilucent clouds, outdoor, phenomena, rare, scene, scenic, shine, shining, shining clouds, shining stars, sky, space, star, starlight, starry, summer, universe, upper, view,