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Parallax would be easier to measure if the Earth were farther from the sun. This way, there will be a wider angle to the stars using the parallax method.
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∙ 9y ago
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How do you measure the circumference of a cirlcle?
You need to measure it with something flexible, like a string.If you know for sure it is a circle, it would be easier to measure the diameter, then multiply by pi.
What is an parallax error?
The difference between an actual correct view and a displaced visual parallax error
What would you use to measure the weight of a dog kilograms or grams?
Depends on what measurement standard you are using and what field you are referring to. It is easier tlo measure in kilograms because it involves smaller numbers. However, if you were studying astronomy, you would likely measure the dog in grams, or solar masses.
Do you measure a lake in feet or yards?
Yards. Lakes are pretty big, and yards is a larger measurement than feet so yards would be an easier measurement.
Most stars have such small parallax shifts that accurate measurement is always possible?
On the contrary, if the parallax angle is too small, it can't be measured accurately.
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.
What are the advantages and disadvantages of measuring the parallax of a star from Pluto?
Advantage: A much larger orbit, thus, the parallax angle will be larger and easier to measure. Disadvantage: A full orbit of Pluto takes 248 years.
Why would astronomers measure the parallax angle of a planet or star?
It's distance
Parallax would be harder to measure if?
A parallax is hard to measure if it is very small - and this happens when the corresponding object is very far away.
Method to measure the distance to nearby stars directly?
For nearby stars, the parallax method gives the most accurate measure of distances.For nearby stars, the parallax method gives the most accurate measure of distances.For nearby stars, the parallax method gives the most accurate measure of distances.For nearby stars, the parallax method gives the most accurate measure of distances.
What is a 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.
Why can't astronomer measure the parallax of a star that is a million lights away?
The farther the object, the smaller its parallax. In this case, the parallax is about 1/300,000 of an arc-second (and an arc-second is 1/3600 of a degree) - way too small to measure. Perhaps you will eventually find a way to measure smaller parallax angles.
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.
Why can parallax only be used to measure distance to star that are relatively close to earth?
At farther distances, the parallax becomes too small to measure accurately. At a distance of 1 parsec, a star would have a parallax of 1 second (1/3600 of a degree). (The closest star, Toliman, is a little farther than that.) At a distance of 100 parsecs, the parallax is only 1/100 of a second.
How does parallax shift varies with distance?
The closer the star, the greater the parallax angle, which is why you can't measure the distance to very distant stars using the parallax method.
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).
Considering that the more distant an object is the smaller the angle it will make why would parallax measurements be better suited for stars than for galaxies?
At larger distance, the parallax becomes smaller, and therefore harder to measure. Even the closest star (Toliman) has a parallax of less than one arc-second (1/3600 of a degree), which is difficult to measure. Stars that are farther away have a much smaller parallax.
