How is Asteroid Day calculated?

This event is observed every year on 30 June.

When is Asteroid Day 2011?

Name: Asteroid Day
Start: 2011-06-30
End: 2011-06-30
Location: Worldwide

Thursday, 30 June 2011

Asteroid Day is an international awareness event held each year on 30 June to promote public understanding of asteroids, planetary defence, and the 1908 Tunguska event in Siberia.

Frequently asked questions

When is Asteroid Day 2011?: Asteroid Day 2011 is on Thursday, 30 June 2011.
What day of the week is Asteroid Day 2011?: It falls on Thursday.
How is Asteroid Day calculated?: This event is observed every year on 30 June.