Living Encyclopedia

Andromeda

Our biggest neighbour

Open in 3D / VR

The story for kids

This is Andromeda, our biggest neighbor. It's even bigger than our galaxy! On a dark night, you can see it in the sky as a tiny fuzzy spot.

Facts

  • It is the closest big galaxy to us – even bigger than the Milky Way.
  • Its light takes 2.5 million years to reach us. We see it as it was before there were people.
  • On a dark night you can see it even without binoculars, as a fuzzy patch.
  • In about 4.5 billion years it will meet the Milky Way, and they will become one galaxy.

Numbers

Type
Spiral
Distance
2.5 million light-years
Stars
~1 trillion
Diameter
~220,000 light-years

Also in this world