0
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?
Wiki User
∙ 13y ago
vega its like a triangle the farther away one part is(arcturis) the narower the triangle is (paralax)
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
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.
Why is the uncertainty in astronomers' knowledge of a star's distance greater for stars that are farther from earth?
I believe that it is all to do with margin of error. The further away the planet, the greater the margin of error in the observations and therefore the greater the uncertainty in their distance from Earth.
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.
What does it mean when a star has a larger parallax than another star?
It means that its apparent movement - due to Earth's movement around the Sun - is greater, and that therefore the star is closer to us.
What do we use remote sensing satellites for?
Because of the large distance between satellites, distances from Earth to distant stars and planets can be determined more accurately (greater parallax). Also, on board cameras can better view objects on Earth in 3 dimensions.
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.
If a star's parallax angle is too small to measure what can you conclude about the star's distance from earth?
It means that the distance is greater than a certain amount - depending on how precisely you can measure the parallax.
If a star's parallax angle is too small to measure what can you conclude about the star's distance from the earth?
It means that the distance is greater than a certain amount - depending on how precisely you can measure the parallax.
Why is Vega brighter than Betelgeuse?
A star's brightness is a function of its luminosity, or the amount of energy it produces per unit time. Vega must have a higher luminosity, meaning it fuses more material than Betelgeuse in a given period of time.
How from away from earth is the arcturus?
It is 36.66 light years away.
The measurement of the slight back-and-forth shifting in a nearby star's position due to the orbital motion of Earth is called?
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.
Why is the uncertainty in astronomers' knowledge of a star's distance greater for stars that are farther from earth?
I believe that it is all to do with margin of error. The further away the planet, the greater the margin of error in the observations and therefore the greater the uncertainty in their distance from Earth.
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 is the radius of Arcturus compared to the Earth?
Arcturus has a radius about 26 times that of our Sun.Our Sun has a radius about 109 times that of Earth.So a quick bit of math: 109 x 26 = 2,834 times that of Earth
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.
What does it mean when a star has a larger parallax than another star?
It means that its apparent movement - due to Earth's movement around the Sun - is greater, and that therefore the star is closer to us.
