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Emily LakdawallaFebruary 28, 2013

Planetary Society Weekly Hangout: Studying Asteroids from Earth with Andy Rivkin

Join Emily Lakdawalla for the Planetary Society's weekly hangout! Her guest this week was Applied Physics Laboratory asteroid astronomer and occasional musician Andy Rivkin. We talked about the menagerie of rocks in the asteroid belt, how many of them travel in pairs and triples, how some of them are surprisingly wet, and how much you can learn about asteroids using Earth-based telescopes.

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Asteroid 4179 Toutatis as seen simultaneously from Paranal and La Silla

ESO

Asteroid 4179 Toutatis as seen simultaneously from Paranal and La Silla
Two images of asteroid 4179 taken on September 29, 2004, at 02:30 UTC, when the asteroid was passing through the constellation of Triangulum Australe (the Southern Triangle) have been superimposed. The images were taken from two sites, La Silla and Paranal, demonstrating the effect of parallax.

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Emily Lakdawalla

Senior Editor and Planetary Evangelist for The Planetary Society
Read more articles by Emily Lakdawalla

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