A Triple-Planet system around Ups Andromedae


A Triple-Planet System Orbiting Ups Andromedae


A schematic diagram of the orbits for the 3 planets detected around Ups Andromedae. The red dots mark the orbits of components b,c and d. The dashed circles show the orbits of Mercury, Venus, Earth and Mars (inside to outside, respectively) overplotted to give a sense of the scale of the extrasolar planetary orbits. Jupiter, at 5 AU would be outside the boundaries of this plot.
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