Question #66ce4
1 Answer
May 18, 2017
A star.
Explanation:
The diameter of the observable universe is around 46.5 billion light years.
Galaxies vary in size from few thousand to almost hundred thousand light years.
Nebulas vary in size from a few light years across to few thousand light years in diameter.
While even the largest known stars are only a few light minutes in diameter.
Hence among the given list of astronomical objects and structures, Stars are the smallest.
