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The night sky is what we see of a night time once it gets dark.


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Night sky is a commonly used term most often employed to refer to the sky as it is seen at night. The term is usually associated with astronomy, with reference to views of heavenly bodies such as stars, the Moon and planets that become visible on a clear night after the Sun has set.

night sky.
The Moon is the most common object viewed in the night sky.

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 state 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 the night sky and bodies observed within it, meanwhile, takes place in the science of astronomy.

The Milky Way.
The Milky Way can be seen as a very large streak or arc across the sky if the seeing conditions are good enough. This is a panoramic image.

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 lighting. With the advent of artificial light sources, however, light pollution has been a growing problem for viewing the night sky. Special filters and modifications to light fixtures can help to alleviate this problem, but for the best seeing both professional and amateur optical astronomers seeks viewing sites located far from major urban areas.



Further reading about the solar system.
The Sun Mercury Venus Earth Mars Ceres Saturn Uranus Neptune Pluto Eris
Planets Dwarf planets Moons: Terran Martian Asteroidal Jovian Saturnian Uranian Neptunian Plutonian Eridian
Small bodies:   Meteorites Asteroids (Asteroid belt) Centaurs TNOs (Kuiper belt/Scattered disc) Comets (Oort cloud)
Solar system related pages. astronomical objects and the solar system's list of solar system objects.

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