An Etymological Dictionary of Astronomy and Astrophysics
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A quantity of mass equal to 1.898 × 10²⁷ kg, about 0.000954 → solar masses, or 317.83 → Earth masses. Jupiter mass, M_J, is used as a → unit to describe masses of the → gas giant, such as the outer planets and → extrasolar planets. Similarly, → brown dwarf masses are expressed in terms of Jupiter mass.

→ Jupiter; → mass.