Quasi-satellite Asteroid Orbits

Scientists discovered Earth has a new quasi-satellite. It is an asteroid, and it does not orbit the Earth. But, because of the relationship between its orbit and Earth’s around the sun, it is involved in what NASA described as a dance with Earth. This is not Earth’s only dance partner, however, as we interact with a second asteroid as well. The screenshot of a YouTube video (from user britoca) shows how gravity choreographs the second dance.

Cruithne's orbit
Cruithne’s orbit

Credit for the piece goes to YouTube user britoca.

Author: Brendan Barry

I am a graphic designer who focuses on information design. Most recently I worked for the Economic Research Department of the Federal Reserve Bank of Philadelphia and prior to that I was Head of Design at Euromonitor International with my design team split between Chicago and London.

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