Which of the following is the second nearest star to Earth?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Proxima Centauri.
The second nearest star to Earth is Proxima Centauri. It is part of the Alpha Centauri star system, located about 4.24 light-years away from Earth. Proxima Centauri is a red dwarf star and is slightly closer to Earth than its companions, Alpha Centauri A and Alpha Centauri B, which are also in the same system. Proxima Centauri is notable not only for its proximity but also for having an exoplanet in its habitable zone, Proxima B.