Watch 4 massive exoplanets orbit a star in 12-year time-lapse

12 years of W.M. Keck Observatory imagery of star system HR 8799 have been time-lapsed. The system hosts four planets that are more massive than Jupiter. Video making & motion interpolation: Jason Wang (UC Berkeley) Data analysis: William Thompson (UVic) & Christian Marois (NRC Herzberg) Orbit determination: Quinn Konopacky (UCSD) Data Taking: Bruce Macintosh (Stanford), Travis Barman (University of Arizona), Ben Zuckerman (UCLA) Data from the W. M. Keck Observatory Animation: NASA Edited by Space.com's [Steve Spaleta](https://twitter.com/stevespaleta) Music: Missing of Times by Joseph Beg / courtesy of http://www.epidemicsound.com