# How to measure a distance?

### How to measure a distance?

For measure the distance between two points:

2. Right-click on the starting point.
3. Select Measure a distance.
4. To create a trip to measure, click anywhere on the map. …
5. When you’re done, click Close.

### How to measure the distance between two stars?

The distance of the stars the closest ones can easily be obtained by the parallax method, and in particular the annual parallax (the diurnal parallax not being sensitive enough for this case).

### What is the parallax method?

The parallax method is a geometric method of angle measurement, it is this method that was first used to measure the distance separating stars from the Earth, especially in the 18th century when Lacaille and Lalande determined the lunar parallax and were able to calculate the distance between the Earth and the Moon.

### How to calculate the parallax of a star?

This unit facilitates the calculations; for example, for Proxima Centauri, the closest star to the Solar System, the parallax is 760 milliseconds, which corresponds to a distance is 1⁄0.760 = 1.32 pc.

### What are the benefits of Parallax?

Since then, trends have followed one another. The parallax has established itself as a classic made to last. No wonder. When creating a website, the parallax effect adds dynamism to the browsing experience. How ?

### What is the maximum parallax of a viewing location?

For a place of observation (A), the parallax is maximum when the star is on the horizon (angle ATP of 90º), it is the horizontal parallax. The latter itself reaches its maximum value for a place located at the equator (the radius of the Earth being greater at the equator),…