How long does it take for light to travel from the star to the earth?

This time depends on the distance between the star and the earth.

For example:

1, the earth in distance to the moon is 380,000 kilometers, and the speed of light is 300,000 kilometers per second, so it takes 1 more seconds for light to travel from the moon to the earth.

2. The distance from the sun to the earth is 65.438+0.5 billion kilometers, and it takes more than 8 minutes for light to travel from the sun to the earth.

The nearest star to the earth is 4 or 23 light years, which means it takes 4 or 23 years for light to travel from that star to the earth. If a star is 50 light years away from the earth, it will take 50 years for the light of this star to reach the earth; The time it takes for light to travel from a star to the earth depends entirely on how far the star is from the earth. The farther it is, the longer it takes.