Mass of 51 Pegasi B

$M_"(51 Pegasi B)" = 0.472 * M_J$

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(M) Mass in Jupiter Masses:

(M) Mass in Solar Masses:

(M) Mass in Earth Masses:

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This vCalc constant represents the mass of 51 Pegasi B, the first exoplanet discovered.

51 Pegasi B was discovered in 1995 and is just less than half the mass of our solar system's Jupiter. (0.472 ± 0.039 M_J)