Astronomy

Astronomy

The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.

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Astronomy > Moon

crescent Moon

Astronomy; Moon

A phase of the Moon just before and after the new moon, when only a thin curved section is illuminated by the Sun. The last crescent moon before the new moon is called the old ...

dark of the Moon

Astronomy; Moon

Another name given to the new moon. It's so named because during this phase, the Moon is not visible in the sky.

declination

Astronomy; Moon

The angle measured between the celestial equator and a celestial body, such as the moon, in the sky.

diurnal

Astronomy; Moon

A reference to a period of one day. In astronomy, diurnal generally refers to the motion of an object in a 24 hour period. An example would be Moon-rise. These activities ...

earthshine

Astronomy; Moon

The light of the sun that is reflected back into space by the Earth, and which can illuminate other objects such as the Moon. Earthshine can illuminate a young crescent moon so ...

eclipse

Astronomy; Moon

The blocking of light from the sun when the earth comes between the sun and moon or the moon between the sun and earth. The Moon frequently moves between the Earth and the Sun, ...

ecliptic

Astronomy; Moon

The imaginary plane formed by the earth's orbit around the sun or the plane formed by the apparent motion of the sun through the sky during a full year.