Sometimes you might wonder that how astronomers calculate the distance of stars from our earth, where there is not possible to use any measuretape? We can just see the stars......
So how astronomers actually do measurement?
Here are some methods, by which they measure the distances..
Click on the Method to understand it....
This table describes which method is used for measuring more accurate distance for which range..............
| Typical distance from our solar system | Measurement Method |
|---|---|
| 10 - 250 | Parallax measurement of distanceto closest stars |
| 5000 to 10 million | Cepheid-variable method used for more distant stars and near by galaxies |
| 20 million to 1 billion | Galaxy comparison used for measuring distances to more distant galaxies |
| 1 to 10 billion | Measurement of redshift of galaxy yields estimate of its distance |