Galaxy

  • It is a collection of billions of stars.
  • Resembling human beings or animals.
  • There are billions of galaxies in the Universe.
  • There are not many galaxies, which are visible to the naked eyes.

Constellation

  • It is a collection of only a few stars.
  • Stars in the constellation are arranged in patterns resembling human beings or some animals.
  • There are only about 88 constellations.
  • There are many constellations, which can be observed with the help of naked eyes.