Brown dwarf star is a class of stellar objects as a mass of about 5-90 Jupiter.

棕矮星是类恒星天体的一种，质量约为5至90个木星之间。

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The super-massive class can weigh millions or billions of stellar masses and reside at the centers of galaxies.

MSN: Existence of middleweight black holes nearly ruled out

AstraZeneca's boast was based on the results of a clinical trial called STELLAR, which compared Crestor against other medicines in the class of cholesterol drugs called statins.

FORBES: FDA Warns AstraZeneca On Crestor Marketing