Sentences with phrase «class planetary companion»
On June 24, 2009, astronomers submitted a paper summarizing observations which reveals that Star A reverses its magnetic poles every two years (some 11 times faster than our Sun, Sol), possibly because of the close orbit of its Jupiter - class planetary companion (Fares et al, 2009; and Unknown, New Scientist, July 13, 2009).
http://www.solstation.com/ Not exact matches
After analyzing four years of Kepler space telescope observations, astronomers from the University of Toronto, and of the University of Cambridge have given us our clearest understanding yet of a class of exoplanets called «warm Jupiters», showing that many have unexpected planetary companions.