There is no widely accepted precise definition of an irregular satellite.

The orbits of the known irregular satellites are extremely diverse, but there are certain rules.

There are no spacecraft planned to visit any irregular satellites in the future.

This is illustrated on the diagram in relation to other irregular satellites of Neptune.

It is rather large for an irregular satellite.

Phoebe, at 214 km in diameter, is by far the largest of Saturn's irregular satellites.

If gas drag was the mechanism for Jupiter, then scientists would expect to see a certain size range among the planet's irregular satellites.

There are 17 recently discovered irregular satellites that have not yet been named.

Eight irregular satellites were discovered since 2000 following similar orbits.

It is a member of the Norse group of irregular satellites.