Pluto Demoted Day 2011

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

Frequently asked questions

When is Pluto Demoted Day 2011?

Pluto Demoted Day 2011 is on Wednesday, 24 August 2011.

What day of the week is Pluto Demoted Day 2011?

It falls on Wednesday.

How is Pluto Demoted Day calculated?

This event is observed every year on 24 August.