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Parallax is a method used to find the distances of stars.
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∙ 14y ago
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Do scientists use stellar parallax to determine a star's temperature?
Not if they have the faintest clue what they're doing. Parallax is used to measure distance, not temperature.
How do scientists determine the parallax of a star?
they look at the star in, say, spring, then fall or summer then winter. we have to be on opposite sides of the star to see the parallax, so it takes about a year
Is parallax a star?
The parallax refers to the apparent change in the star's position, due to Earth's movement around the Sun. This parallax can be used to measure the distance to nearby stars (the closer the star, the larger will its parallax be).
What method do astronomers use to determine the distance to a relatively close star like Sirius?
For nearby stars, the parallax method is used.
Parallax can't be used on a star if the star is too?
Close.
When is parallax used for?
A parallax is a change in apparent position, when YOU move. In astronomy, it usually refers to the change in the apparent position of a star, due to Earth's orbit around the Sun. It's there, whether you "use" it or not, but it is quite useful to determine distances of stars that are relatively close to us - since the farther a star is, the smaller will the parallax be. Even for the nearest star after the Sun, the parallax is smaller than one second (1/3600 of a degree).
What is an advantage of using parallax rather than the Doppler effect to determine star distance?
Parallax is more accurate for stars that are very far away.
What is Often used to determine the distance to nearby stars?
parallax
What is parallax bar?
A parallax bar or stereometer is a simple measuring device that is used to determine the height of objects in photographs.
The parallax of a star is observed because?
Parallax helps because the bigger the parallax is the closer the star is. Knowing the distance helps to determine the "absolute magnitude" of a star, not just how bright it appears.
Could parallax be used to determine the distance of all stars?
REdA HaHa
What is a name for the apparent movement of a star used to measure its distance from earth?
parallax
