answersLogoWhite

0

Parallax is the difference in observed angle (position) between two observations that are taken at two different points. The most common use of parallax is in measuring the positions of stars 6 months apart, when the Earth is 186 million miles from its starting point. By using trigonometry, and comparing against the far distant (constant) stars, you can then estimate the distance to the (nearer) star.

User Avatar

Wiki User

13y ago

What else can I help you with?

Continue Learning about Astronomy

What is the size of an astronomical parsec?

By definition, if the parallax is one arc-second (1/3600 of a degree), the distance is one parsec.By definition, if the parallax is one arc-second (1/3600 of a degree), the distance is one parsec.By definition, if the parallax is one arc-second (1/3600 of a degree), the distance is one parsec.By definition, if the parallax is one arc-second (1/3600 of a degree), the distance is one parsec.


An object that is farther away than another object will have a parallax?

Yes, objects that are farther away than others will exhibit less parallax. Parallax is the apparent change in position of an object when viewed from different perspectives. The closer an object is, the greater its parallax when viewed from different angles.


Which star would have a greater parallax the earth or the arcturus?

Earth isn't a star and doesn't (can't) have a parallax, becuse we use Earth's orbit as a baseline to measure parallax.


How is a parallax helpful to astronomers?

Parallax is the apparent change in postion of an object when looked at from two different places. Astronomers use parallax to find how far away nearby stars are.


If a star has a parallax of 0.20 arc seconds what is the distance to that star?

I assume you mean the parallax. If the parallax is 0.1 arc-seconds, then the distance is 1 / 0.1 = 10 parsecs.I assume you mean the parallax. If the parallax is 0.1 arc-seconds, then the distance is 1 / 0.1 = 10 parsecs.I assume you mean the parallax. If the parallax is 0.1 arc-seconds, then the distance is 1 / 0.1 = 10 parsecs.I assume you mean the parallax. If the parallax is 0.1 arc-seconds, then the distance is 1 / 0.1 = 10 parsecs.

Related Questions

What a parallax?

The definition for the word parallax is "the effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g., through the viewfinder and the lens of a camera."


What does parallax mean on rifle scopes?

The image is in front of or behind the reticle. See the link below for an expanded definition and explanation.


A distortion to a measurement caused by the angle at which the measurement is taken is called?

Survey ANS #2: That is the definition of "Parallax". Parallax is what causes the gas gage on a car to appear empty to the passenger when the driver sees that it still reads a quarter of a tank.


What was definition's definition?

Definition is the same as meaning.


What is a parallax and what is it used for?

parallax is a planet


What is a parallax.?

The definition for the word parallax is "the effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g., through the viewfinder and the lens of a camera."


Definition of graph key?

meaning of definition


When was Parallax - comics - created?

Parallax - comics - was created in 1994.


When was Advent Parallax created?

Advent Parallax was created in 2008.


When was Parallax Software created?

Parallax Software was created in 1993.


What is parallax bar used for?

Parallax bars are used in photogrammetry and remote sensing. with the use of the principles of parallax and refraction, parallax bars are used to measure the heights of buildings and other features.


What comic book is Parallax from?

Parallax is a character who features in the comic called Green Lantern. Parallax is a villain and first appeared in the comic in 1994. The character Parallax was created by the writer Ron Marz.