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. Full Story: https://www.space.com/exoplanets-orbit-12-year-timelapse-video

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