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Exoplanets: Seeing is Believing (1 of 9)

Caption: HR 8799 finding chart. HR 8799, an A-type star having 1.5 times the mass of the Sun and 5 times its luminosity, is located in the constellation of Pegasus. It is 130 light years from Earth and happens to be visually located not far away from 51 Peg, the first star to have a confirmed planet indirectly detected by radial velocity measurements in 1995 (note that HR 8799 and 51 Peg are located close in the sky, but are quite far apart in space; 51 Peg being 50 light years from Earth). On Nov. 13, 2008, and for mid-northern latitudes, the Pegasus constellation can be seen south, near Zenith, at 7 p.m.

Credit: Image courtesy of National Research Council Canada, via Science-AAAS

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