Pluto Demoted Day 2017

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

Frequently asked questions

When is Pluto Demoted Day 2017?

Pluto Demoted Day 2017 is on Thursday, 24 August 2017.

What day of the week is Pluto Demoted Day 2017?

It falls on Thursday.

How is Pluto Demoted Day calculated?

This event is observed every year on 24 August.