Which of the following describes parallax?
A)It is best measured over exactly one year intervals.
B)It is inversely proportional to the distance to the star.
C)It was first observed by Galileo with his new telescope.
D)It is only applicable to objects within the solar system.
E)It is more accurate as the distances to objects become greater.

Question

Quizplus · Accepted Answer

Parallax is the apparent shift in the position of an object when viewed from two different perspectives. It is inversely proportional to the distance to the object, meaning the closer an object is, the larger its parallax appears. This makes it a useful tool in measuring distances to nearby stars. Parallax is the apparent shift in the position of an object when viewed from two different points. In astronomy, it is used to measure the distance to stars by observing their shift in position against the background of more distant stars over a period of six months, when viewed from opposite sides of the Earth's orbit. The angle of parallax is inversely proportional to the distance to the star, which means that the greater the parallax angle, the closer the star is to Earth.

Which of the Following Describes Parallax