General astronomy

General astronomy

Industry: Astronomy

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General astronomy

anomalistic year

Astronomy; General astronomy

1) A period of time based on the revolution of the Earth around the Sun, where a year is defined as the mean interval between successive passages of the Earth through perihelion. 2) The interval ...

antapex

Astronomy; General astronomy

The direction in the sky away from which the Sun seems to be moving (at a speed of 19.4 km s-1) relative to general field stars in the Galaxy.

The weak form of the anthropic principle states that life can exist only during a brief period of the history of our universe. The strong form of the principle states that out of all possible values ...

anthropocentrism

Astronomy; General astronomy

The belief that humans are central to the universe.

anthropomorphism

Astronomy; General astronomy

The projection of human attributes onto nonhuman entities such as animals, the planets, or the universe as a whole.

anticenter

Astronomy; General astronomy

1) The direction of the sky opposite to that of the galactic center. 2) The point in the galactic plane that lies directly opposite the galactic center. Here we gaze toward the edge of the Galactic ...