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Which star would have a greater parallax vega or arcturus?
Vega would have a greater parallax than Arcturus. Vega is closer to Earth at a distance of about 25 light-years, while Arcturus is approximately 37 light-years away. Since parallax measures the apparent shift of a star against distant background stars due to Earth's orbit around the Sun, closer stars exhibit larger parallax angles. Therefore, Vega, being closer, will show a more significant parallax shift than Arcturus.
If Vega is 25.3 light year from earth and arcturus is 36.7 light years away which star would have a greater parallax explain?
Vega would have a greater parallax due to its closer distance to Earth compared to Arcturus. Parallax is the apparent shift in position of an object when viewed from different perspectives, and the nearer an object is to the observer, the larger its parallax.
Sirius has a parallax of 0.377 arc seconds How far away is it from earth in arc seconds?
The distance from Earth to Sirius is the reciprocal of its parallax angle, so it would be 1 / 0.377 = 2.654 parsecs away.
How Can the observation of stellar parallaxes in general be used as evidence against a geocentric view of the cosmos?
The observation of stellar parallaxes is evidence against a geocentric view of the cosmos because parallax shifts in the positions of stars as observed from Earth would not occur if the Earth were at the center of the universe. The fact that we can observe parallax in stars from different positions on Earth supports the heliocentric model, where Earth revolves around the Sun and is not at the center of the cosmos.
Would your weight be greater if earth gained mass?
Yes, if Earth gained mass, its gravity would increase, which would make your weight greater because you would experience a stronger gravitational force pulling you towards the center of the Earth.
Which star would have a greater parallax vega or arcturus?
Vega would have a greater parallax than Arcturus. Vega is closer to Earth at a distance of about 25 light-years, while Arcturus is approximately 37 light-years away. Since parallax measures the apparent shift of a star against distant background stars due to Earth's orbit around the Sun, closer stars exhibit larger parallax angles. Therefore, Vega, being closer, will show a more significant parallax shift than Arcturus.
If Vega is 25.3 light year from earth and arcturus is 36.7 light years away which star would have a greater parallax explain?
Vega would have a greater parallax due to its closer distance to Earth compared to Arcturus. Parallax is the apparent shift in position of an object when viewed from different perspectives, and the nearer an object is to the observer, the larger its parallax.
Parallax would be easier to measure if?
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.
Sirius has a parallax of 0.377 arc seconds How far away is it from earth in arc seconds?
The distance from Earth to Sirius is the reciprocal of its parallax angle, so it would be 1 / 0.377 = 2.654 parsecs away.
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.
How would your weight change on the surface of an Earth size planet whose mass was greater than earth's?
It would be greater.
How would your weight change on the surface of an earth size planet whose mass was greater than earth?
It would be greater.
How would your weight change on the surface of an earth-sized planet whose mass was greater than the Earth's.?
It would be greater.
How big is Arcturus?
Arcturus is a red supergiant with a radius 25 times larger than our Sun. If our Sun was replaced by Arcturus it's outer edges would reach beyond Mars. See related link for a pictorial representation.
How Can the observation of stellar parallaxes in general be used as evidence against a geocentric view of the cosmos?
The observation of stellar parallaxes is evidence against a geocentric view of the cosmos because parallax shifts in the positions of stars as observed from Earth would not occur if the Earth were at the center of the universe. The fact that we can observe parallax in stars from different positions on Earth supports the heliocentric model, where Earth revolves around the Sun and is not at the center of the cosmos.
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.
Why does the parallax method of measuring star distances require observations of a star six months apart?
Because that is the entire idea of the parallax method - get measurements from two points, as far away as possible.It would be possible to do measurements a month apart, for example, or a week apart; but that would give a smaller parallax angle, and thus a larger error.Because that is the entire idea of the parallax method - get measurements from two points, as far away as possible.It would be possible to do measurements a month apart, for example, or a week apart; but that would give a smaller parallax angle, and thus a larger error.Because that is the entire idea of the parallax method - get measurements from two points, as far away as possible.It would be possible to do measurements a month apart, for example, or a week apart; but that would give a smaller parallax angle, and thus a larger error.Because that is the entire idea of the parallax method - get measurements from two points, as far away as possible.It would be possible to do measurements a month apart, for example, or a week apart; but that would give a smaller parallax angle, and thus a larger error.
