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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.
What is the apparent velocity of a star relative to another star?
It is the a parallax.
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
Who discovered stellar parallax?
Friedrich Wilhelm Bessel was the first person to find the parallax of a fixed star.
If you determinee that a certain star displayed a large parallax what couls you say about its distance?
If a certain star displayed a large parallax, i would say its distance is not wide.
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.
Do all-stars have measurable parallax angles?
No, only the closer ones have a parallax that is large enough to be measured. The first star to have its parallax measured was 61 Cygni, measured by Bessel in 1838 and found to be at a distance of 10.3 light years, later corrected to 11.4. The closest star Proxima Centauri has a parallax of only about 0.7 seconds of arc. Before then the absence of parallax for the stars was considered an important part of the case that the Earth cannot be revolving round the Sun.
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).
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 does a big parralax say about a stars distance?
The larger a star's parallax, the closer the star is to us.
What can parallax be used to determine about a star?
Parallax is a method used to find the distances of stars.
Parallax can't be used on a star if the star is too?
Close.
What is the apparent velocity of a star relative to another star?
It is the a parallax.
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
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
Who discovered stellar parallax?
Friedrich Wilhelm Bessel was the first person to find the parallax of a fixed star.
If you determinee that a certain star displayed a large parallax what couls you say about its distance?
If a certain star displayed a large parallax, i would say its distance is not wide.
