2020年1月10日 · Located in the constellation Eridanus, this star lies 10.52 light-years from Earth. It is the closest star to have planets orbiting around it. It also the third closest star that is visible to the naked eye. Epsilon has a dust disk around it and appears to have a planetary system.

2020年12月8日 · Of the three stars in the system, the dimmest - called Proxima Centauri - is actually the nearest star to the Sun. The two bright stars, called Alpha Centauri A and B form a close binary system; they are separated by only 23 times the Earth - Sun distance.

2014年7月22日 · The simple answer is that the Sun is the closest star to Earth, about 93 million miles away. But that might not answer your question. Outside of our Sun, our system's nearest neighbor is Alpha Centauri.

The closest star, Proxima Centauri, is 4.24 light-years away. A light-year is 9.44 trillion km, or 5.88 trillion miles. That is an incredibly large distance. Walking to Proxima Centauri would take 950 million years. If you turned it up and went as fast as Apollo 11 went to the Moon, it would still take 43,000 years. So how can we measure such a ...

2023年3月5日 · At 4.2 light-years from Earth, Proxima Centauri is the closest star to our planet other than the sun. Its name means "nearest to Centaurus" in Latin. Proxima Centauri is a red dwarf star with a...

2024年3月21日 · The nearest visible star system is Alpha Centauri, which is about 4.25 light-years away. The closest star in this three-star system is Proxima Centauri, but because it's a red dwarf,...

2023年10月27日 · Alpha Centauri consists of three known stars (including Proxima). Of the three, Proxima is closest, at 4.2 light-years away. Alpha Centauri appears as the 3rd-brightest star in Earth’s sky. But...

Among the known stars, Proxima Centauri has been the closest star to the Sun for about 32,000 years and will be so for about another 25,000 years, after which Alpha Centauri A and Alpha Centauri B will alternate approximately every 79.91 years as the closest star to the Sun.

The closest star to Earth is Proxima Centauri (Alpha Centauri C), a red dwarf located only 4.2465 light-years away. Proxima is the faintest and smallest component of the Alpha Centauri system, which also includes Rigil Kentaurus (Alpha Centauri A) and Toliman (Alpha Centauri B).

The closest star to us is actually our very own Sun at 93,000,000 miles (150,000,000 km). The next closest star is Proxima Centauri. It lies at a distance of about 4.3 light-years or about 25,300,000,000,000 miles (about 39,900,000,000,000 kilometers).