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“parallaxes”
The change in the obvious position of an object against its background when observed from two different viewpoints: The parallax is an angular displacement undergone by the position of a star when observed from two different points.
In astronomy, nearby stars show a shift owing to a parallax when seen from different locations on the Earth's orbit around the Sun. A star's parallax is used to determine its distance from the Earth.
Nearer bodies, such as, the Moon, Sun, and planets also show a parallax caused by the motion of the Earth.
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 18)
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“parallaxes”
The change in an astronomical object's apparent position caused by the change in the observer's position: A diurnal parallax is due to the motion or rotation of the planet Earth during the day:
This entry is located in the following unit:
Astronomy and related astronomical terms
(page 8)