# How is the distance from the Earth to the nearest star (aside from our sun) calculated?

##### 1 Answer

Feb 14, 2017

Astronomers can use the method of parallax angle to measure the Distance. Nearest star is Proxima centuari about 4,243 light years away..

#### Explanation:

THe parallax angle can be measure after 6 months interval and we can calculate the distance as given in the picture .

d= distance to star.

p=parallax angle in arc seconds.

picture credit www hip oooobsph FR.

the measure parallax to proxima c=0.77

d= 1/0.77 =12.98 parse s. multiply nby lightyears 12.98x 3.26=4.23 lighrtbyears