Pluto Demoted Day 2010

Pluto Demoted Day marks the decision that classified Pluto as a dwarf planet.

Frequently asked questions

When is Pluto Demoted Day 2010?

Pluto Demoted Day 2010 is on Tuesday, 24 August 2010.

What day of the week is Pluto Demoted Day 2010?

It falls on Tuesday.

How is Pluto Demoted Day calculated?

This event is observed every year on 24 August.