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Did you ever sit in the passenger seat and look at the fuel gauge on the dash? You see the gauge from the side so it appears that the needle is pointing to Empty. The driver is looking straight at it so the driver sees the actual reading to be a quarter of a tank. That was a parallax error that your observation position created.
Wiki User
∙ 14y ago
Wiki User
∙ 16y agoAccording to this, about 100 parsec. http://hsc.csu.edu.au/physics/options/astrophysics/3035/PHY972net.html
Wiki User
∙ 13y agoStars at any distance will have a parallax, but when the distance becomes too large, the parallax becomes too small to measure.
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Is a star with no measurable parallax is very close to Earth.?
No, if you can measure no parallax, the star is far away - further than a certain distance.
If a star's parallax is too small to measure does that mean that it is close or far from Earth?
Nearby stars have a larger parallax angle.
Is a star with no parralex very close to earth?
No. A star with no visible parallax is far 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.
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.
Why must a star's parallax be known before you can find the luminosity?
What must be known is the distance. And the most accurate method to measure the distance of nearby stars is the parallax - but this method won't work for stars that are far away.
Is a star with no measurable parallax is very close to Earth.?
No, if you can measure no parallax, the star is far away - further than a certain distance.
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's parallax is too small to measure does that mean that it is close or far from Earth?
Nearby stars have a larger parallax angle.
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.
Why is parallax not a good idea technique for determining distances of stars that are far away?
Distances are too far for it to be effective.
Is a star with no parralex very close to earth?
No. A star with no visible parallax is far away.
What does the angle of parallax determine?
Accuracy of readings of e.g. meters and certain optical instruments. Parallax is also used in astronomy for calculating distances to(astronmically)far-away objects.
Parallax cant be used on a star if the star is too?
We can't use parallax to measure a stars distance from the Earth if the star is already too far away. The angles used in parallax measurment are already very small, and if the star is beyond a certain distance from us the angle becomes too small to measure, and no distance can be determined.To date the largest distance that can be measured using parallax, with the Hipparchos sattelite, is about 1 600 light years. This will be improved with the European Space Agencies Gaia mission in 2012 and 2013.
What isTrigonometic parallax used to obtain distance to?
parsecs and arc seconds of one parallax to the distant background stars. it doesnt work very well across the intergalactic medium because there are no background stars outside of galaxies, so it mostly works to determine very far away distances within a galaxy or galaxies
What is a parallax and what is it used for?
parallax is a planet
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.
