The solar energy during the day looks in the sky, only if by cloud lid. In the sky night (and in some kind of degrees during the day) the moon, the planet and holds the first role is obvious in the sky. Some normal phenomena looked in the sky are the cloud, the rainbow, with aurorae. The sleet can also see in the sky in the period for attack by to ground lightning and autumn, bird, insect, airplane, and the kite frequently is considered volers in the sky. In the humanity, the fog smokes in day radiation period and the light the reason motion which frequently looked in the period night (sees also also also light pollution) above the big city. The sky light is the sunlight dispersion result, clearly has the picture result color blue color color experience by the naked eye. In the day sunny Rayleigh dispersion for the sky blue color gradient - dark in the zenith, the light closely suffers the horizon. Lights the conference giant air 1/38th giant light beam to come between the comfortable ceiling the horizon. Thus, the few particles disperse zenith light beam, with, therefore the darker dark sky light is left behind [ 5 ] will be the name is given in person's blue color the countryside from equally to reduce next and possibly usually eliminates the light pollution object from the planet. The campaign conducts the international sky by the dark association (IDA) and by the organization in national for example west blue color news imperial family astronomy company - RASNZ and in the dark sky Taonga support. The light pollution has by IDA defines; "any wax candlelight harmful function including/understanding sky glimmer, the glimmer, the light violation, the light basic image, reduces the night which may see, by energy loss.
