Bruce Murray Space Image Library
The radial velocity graph of 51 Pegasi
Filed under explaining science, extrasolar planets, optical telescopes
51 Pegasi was the first exoplanet detected and confirmed. The points on the graph indicate actual measurements taken. The sinusoid is the characteristic shape of the radial velocity graph of a star rocking to the tug of an orbiting planet.
Original image data dated on or about January 1, 1995
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