posted on Jan, 9 2013 @ 05:06 AM
There's no direct view of this system yet, but the data of the recent discoveries exposed below strongly suggest that there's in fact a multiple
planets system, similar to our Solar System, around Vega.
Astronomers have discovered what appears to be a large asteroid belt around the star Vega, the second brightest star in northern night skies. The
scientists used data from NASA's Spitzer Space Telescope and the European Space Agency's Herschel Space Observatory, in which NASA plays an
The discovery of an asteroid belt-like band of debris around Vega makes the star similar to another observed star called Fomalhaut. The data are
consistent with both stars having inner, warm belts and outer, cool belts separated by a gap. This architecture is similar to the asteroid and Kuiper
belts in our own solar system.
What is maintaining the gap between the warm and cool belts around Vega and Fomalhaut?
The results strongly suggest the answer is multiple planets.
Our solar system's asteroid belt, which lies between Mars and Jupiter, is maintained by the gravity of the terrestrial planets and the giant planets,
and the outer Kuiper belt is sculpted by the giant planets. "Our findings echo recent results showing multiple-planet systems are common beyond our
sun," said Kate Su, an astronomer at the Steward Observatory at the University of Arizona, Tucson. Su presented the results Tuesday at the American
Astronomical Society meeting in Long Beach, Calif., and is lead author of a paper on the findings accepted for publication in the Astrophysical