The term night sky, usually associated with astronomy from Earth, refers to the nighttime appearance of celestial objects like stars, planets, and the Moon, which are visible in a clear sky between sunset and sunrise, when the Sun is below the horizon.
Natural light sources in a night sky include moonlight, starlight, and airglow, depending on location and timing. Aurorae light up the skies above the polar circles. Occasionally, a large coronal mass ejection from the Sun or simply high levels of solar wind may extend the phenomenon toward the Equator.The night sky and studies of it have a historical place in both ancient and modern cultures. In the past, for instance, farmers have used the status of the night sky as a calendar to determine when to plant crops. Many cultures have drawn constellations between stars in the sky, using them in association with legends and mythology about their deities.
The anciently developed belief of astrology is generally based on the belief that relationships between heavenly bodies influence or convey information about events on Earth. The scientific study of celestial objects visible at night takes place in the science of observational astronomy.
The visibility of celestial objects in the night sky is affected by light pollution. The presence of the Moon in the night sky has historically hindered astronomical observation by increasing the amount of ambient brightness. With the advent of artificial light sources, however, light pollution has been a growing problem for viewing the night sky. Optical filters and modifications to light fixtures can help to alleviate this problem, but for optimal views, both professional and amateur astronomers seek locations far from urban skyglow.
List of Pinterest Night Sky images & Night Sky pictures
List of all Pinterest Night Sky images and pictures. Browse Pinterest Night Sky ideas
Dreamscape... the moon and star-sprinkled night sky as seen through the ruins of an ancient building - Federica Fiorini - #ancient #building #Dreamscape #Federica #Fiorini #moon #Night #ruins #sky #starsprinkled
How to Paint a Glowing Moon. Subtle layers of paint are used to give a painting of the moon a soft, glowing effect. Placed against a darkened night sky, this effect gives a painting a sense of depth and atmosphere. An artist creates a wash by mixing acrylic paint colors with varying amounts of water. This wash is then applied lightly and gradually...