Outside the sun, the nearest star to the earth is? 4 light years, 40 light years, more than 4 billion kilometers, more than 400 million kilometers

Outside the sun, the nearest star to the earth is? 4 light years, 40 light years, more than 4 billion kilometers, more than 400 million kilometers

The closest star to the solar system is a zero order star in the constellation Centaurus, Rigil Kent in the West and nanmener in the middle. It is one of the early stars that used parallax method to calculate the actual distance. In fact, it is a triad star. One of the eleventh order stars is only about 4.2 light-years away, and Proxima in the west is the closest star to the solar system. We call it a neighbor star
The nearest star is called Centaurus prosima, which is about 4 light-years away, about 23 trillion miles away
The nearest star is called Centaurus prosima, which is about 4 light-years away from us (it takes about 4 years to reach Earth), which is about 23 trillion miles away

What is the nearest star to the sun? How many light years from the sun?

Proxima Centauri is the third star of alpha triad Centauri, also known as Alpha Centauri C according to Bayer nomenclature. It is the closest star to the sun (4.22 light-years)

If a star is 10 light-years away from the earth, its light is ()
A. 10 light years ago B. 10 light years ago C. 3 × 109 light years ago D. 3 × 109 light years ago

If a star is 10 light-years away from the earth, it will take 10 years for its light to spread to the earth, so the light of the star we see now is emitted 10 years ago