Ключевые слова: atmosphere, atmospheric, background, beautiful, blue, bright, clouds, dark, dusk, finland, glow, heaven, high, illuminate, light, luminescence, mesospheric, midnight, natural, nature, night, noctilucent, nocturnal, nordic, phenomena, phenomenon, scandinavia, scenic, shape, shining, sky, skyscape, space, stock, strange, summer, sundown, sunset, texture, twilight, weather,