=============+=========+=============+========+=====================+============+========= | | | | | | | |Mean Distance| | | | |Apparent |from Planet's|Diameter| Period of | | Year of Name |Magnitude| Center, |in miles| Revolution | Discoverer |Discovery | | in miles | | | | -------------+---------+-------------+--------+---------------------+------------+--------- | | | | | | THE EARTH | | | | | | Moon | | 238,857 | 2160 | 27 days, 7 hours, | | | | | | 43 minutes | | MARS | | | | | | 1. Phobos | 14 | 5,850 | 10? | 0 days, 7 hours, | Asaph Hall | 1877 | | | | 39 minutes | | 2. Deimos | 13 | 14,650 | 10? | 1 day, 6 hours, | Asaph Hall | 1877 | | | | 17 minutes | | JUPITER | | | | | | v. | 13 | 112,500 | 100? | 0 day, 11 hours, | Barnard | 1892 | | | | 57 minutes | | i. | 6.5 | 261,000 | 2452 | 1 day, 18 hours, | Galileo | 1610 | | | | 28 minutes | | ii. | 6.5 | 415,000 | 2045 | 3 days, 13 hours, | Galileo | 1610 | | | | 14 minutes | | iii. | 6 | 664,000 | 3558 | 7 days, 3 hours, | Galileo | 1610 | | | | 43 minutes | | iv. | 7 | 1,167,000 | 3345 | 16 days, 16 hours, | Galileo | 1610 | | | | 32 minutes | | vi. | 14 | 7,372,000 | small | 266 days, 0 hours, | Perrine | 1904 | | | | 0 minutes | | vii. | 16 | 7,567,900 |very | 276 days, 16 hours, | Perrine | 1905 | | | small | 5 minutes | | viii. | 17 | 15,600,000 |very | 789 days, 0 hours, | Melotte | 1908 | | | small | 0 minutes | | ix.