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TEA [102]
3 years ago
8

Fill in the blanks in the statements about parallax. As the distance to an object decreases, the observed parallax ____ . A pars

ec is defined as the distance to an object when the ____ is equal to one arcsecond. When the parallax is 0.1 arcseconds , the distance is ____.
Geography
2 answers:
sweet-ann [11.9K]3 years ago
8 0

Answer:

increases, angle, 10 parsec

Explanation:

d=1/p

d: distance in parsec

p: parallax in arcseconds

One parse is defined as distance at which angle subtended by an astronomical body from earth's equator is one arcsceond.

dedylja [7]3 years ago
6 0

Answer:

As the distance to an object decreases, the observed parallax _Increases_ . A parsec is defined as the distance to an object when the _Angle_ is equal to one arcsecond. When the parallax is 0.1 arcseconds , the distance is _10 parsecs_.

Explanation:

A Parallax in astronomy is the apparent displacement of an object because of a change in the observer's point of view. This is use to measure distances to nearby stars. As the distance to a star increases, the its parallax decreases and vice-versa.

Parallax formula can be express as:

d=1/p

Where:

p = parallax angle in arcseconds

d = distance in Parsecs

Parallax Second = Parsec (pc)

A star with a parallax of 1 arcsecond has a distance of 1 Parsec.

Given:

p = 0.1 arcseconds

from:

d=1/p

d=1/0.1 arcseconds

d=10 parsecs

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