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At least 28 planets were found in 2008, all of them exoplanets (i.e. planets oribiting stars other than the Sun).

Exoplanets are generally named as follows:

Technical star name + lower case letter denoting the order in which the planets are discovered around that star (starting with "b" because "A" stands for the star itself). For instance 51 Pegasi b means the first planet discovered orbiting the star 51 Pegasi.

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16y ago

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