What’s the closest star to our Sun?

The closest star to our Sun is Proxima Centauri.

• Distance: About 4.24 light-years away
• Type: Red dwarf star (much smaller and cooler than the Sun)
• Part of: The Alpha Centauri star system, which actually has three stars:
• Alpha Centauri A
• Alpha Centauri B
• Proxima Centauri (the closest one to us)

Even though it’s the nearest star, it’s still incredibly far—light from Proxima Centauri takes over 4 years to reach Earth!