What is the closest star to our solar system?
The star closest to our solar system is Proxima Centauri. It is a small red dwarf star about 4.2 light years away from our Sun.
Complete the following task based on the instruction and optional input provided.### Instruction:
What is the closest star to our solar system?

### Output:
The star closest to our solar system is Proxima Centauri. It is a small red dwarf star about 4.2 light years away from our Sun.