What is the closest star to Earth besides the Sun?
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Proxima Centauri is the closest star to Earth after the Sun. It’s part of the Alpha Centauri star system.
Distance:
Proxima Centauri is about 4.25 light-years away from Earth.
A light-year is the distance light travels in one year, which is about 9.461 x 1012 kilometers.
Characteristics:
Proxima Centauri is a small, red dwarf star.
It’s about one-tenth the mass of the Sun.
It’s too faint to see with the naked eye.
It’s a flare star, which means it can suddenly and violently shine brightly for short periods of time.
Planets:
Proxima b is a rocky planet in Proxima Centauri’s habitable zone. It’s about 7% more massive than Earth.
Proxima c is another planet in Proxima Centauri’s orbit, but it’s too far from the star to support liquid water.
A third possible planet was discovered in 2022. It’s very close to the star and orbits it every five days.
Proxima Centauri is the closest star to Earth after the Sun. It’s part of the Alpha Centauri star system.
Distance:
Proxima Centauri is about 4.25 light-years away from Earth.
A light-year is the distance light travels in one year, which is about 9.461 x 1012 kilometers.
Characteristics:
Proxima Centauri is a small, red dwarf star.
It’s about one-tenth the mass of the Sun.
It’s too faint to see with the naked eye.
It’s a flare star, which means it can suddenly and violently shine brightly for short periods of time.
Planets:
Proxima b is a rocky planet in Proxima Centauri’s habitable zone. It’s about 7% more massive than Earth.
Proxima c is another planet in Proxima Centauri’s orbit, but it’s too far from the star to support liquid water.
A third possible planet was discovered in 2022. It’s very close to the star and orbits it every five days.
The closest star to Earth, besides the Sun, is Proxima Centauri. It is located about 4.24 light-years away from Earth in the Alpha Centauri star system. Proxima Centauri is a red dwarf star, much smaller and cooler than our Sun.