![]() In contrast to surface gas layers, the cores of all four jovian planets are dense solids, combining rock, metal and hydrogen compounds. Jovian planets have a mainly gaseous composition made up mostly of hydrogen, with small amounts of helium, and some traces of methane, ammonia, water vapor and ices. The closest jovian planet to the Sun is Jupiter (5.2 AU / 778.6 million km) and the furthest is Neptune (30.06 AU / 4.5 billion km). The jovian planets all lie beyond our solar system’s “frost line”, a point around 5 AU from the Sun beyond which surface water would generally remain solid ice even when in direct sunlight. The furthest terrestrial planet is Mars which lies 1.52 AU (227.9 million km) from the Sun. The closest terrestrial planet to the Sun is Mercury, lying 0.39 astronomic units (AU) or 57.9 million km from our star. Terrestrial planets lie closer to the Sun than jovian planets. Saturn is the second largest (36,184 miles / 58,232 km), with Uranus (15,759 miles / 25,362 km) and Neptune (15,299 miles / 24,622 km) both four times as large as Earth. The biggest jovian planet is Jupiter, with a radius approximately 11 times the size of Earth’s (43,441 miles / 69,911 km). Jovian planets are on a much larger scale. Mercury is the smallest terrestrial planet with a radius of 1516 miles / 2440 km, followed by Mars (2106 miles / 3390 km), Venus (3769 miles / 6052 km) and Earth (3959 miles / 6371 km). The terrestrial planets are all significantly smaller than the jovian planets. The main differences between the terrestrial and jovian planets fall into the categories below: Size Differences Between Terrestrial And Jovian Planets You can remember jovian planets by thinking of those which share characteristics with Jupiter. The word “jovian” is also derived from Latin, with ‘Jove’ being an older name for Jupiter, the chief god of the Romans, for whom the largest gas-giant in our solar system is named. Jovian planets are those like Jupiter, characterized by gaseous composition, immense size and much greater distance from the Sun. This root can help in remembering which planets belong in the same category as Earth. The word “terrestrial” is derived from Latin and means relating to the land or Earth-like. Three of the four terrestrial planets in our solar system have significant atmosphere ( Venus, Earth, Mars), while one ( Mercury) does not, due to temperature and high solar winds. Terrestrial planets are those like Earth which are characterized by solid surfaces, compact size and closer proximity to the Sun. Similarities Between Terrestrial And Jovian Planets.Differences Between Terrestrial And Jovian Planets. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |