From BiblePortal Wikipedia

Mercury [1]

An interior planet of the Solar system, whose orbit is nearest the sun, the greatest distance being nearly 43,000,000 m. and the least over 28,000,000, is one-seventeenth the size of the earth, but is of greater density, and accomplishes its revolution in about 84 days; it is visible just before the sun rises and after it sets, but that very seldom owing to the sun's neighbourhood.