Who discovered the solar system?
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Ptolemy came up with an early model (pre Galileo and pre Copurnicus) that was ingenious, but wrong.  He had the Earth at the center and all the planets (and the sun!) circling around it.
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Pluto (planet), ninth planet from the Sun and outermost known member of the solar system. Pluto was discovered as the result of a telescopic search inaugurated in 1905 by the American astronomer Percival Lowell, who conjectured the existence of a distant planet beyond Neptune as the cause of slight perturbations (see Orbit) in the motions of Uranus. Continued by members of the Lowell Observatory staff, the search ended successfully in 1930, when the American astronomer Clyde William Tombaugh found Pluto near the position Lowell had predicted. The new planet’s mass, however, seemed insufficient to account for the perturbations of Neptune, and the search for a possible tenth planet continues.\n\nPluto revolves about the Sun once in 247.7 years at an average distance of 5.9 billion km (3.67 billion mi). The orbit is so eccentric that at certain points along its path Pluto is closer to the Sun than is Neptune. No possibility of collision exists, however, because Pluto’s orbit is inclined by more than 17.2° to the plane of the ecliptic and never actually crosses Neptune’s path.\n\nVisible only through large telescopes, Pluto is seen to have a yellowish colour. For many years very little was known about the planet, but in 1978 astronomers discovered a relatively large moon orbiting Pluto at a distance of only about 19,000 km (12,000 mi) and named it Charon. The orbits of Pluto and Charon caused them to pass repeatedly in front of one another from 1985 to 1990, enabling astronomers to determine their sizes fairly accurately. Pluto is 2,284 km (1,420 mi) in diameter, and Charon is 1,192 km (740 mi) in diameter, making them even more like a double-planet system than are the Earth and its moon. Pluto was also found to have a thin atmosphere, probably of methane, exerting a pressure on the planet’s surface that is about 100,000 times weaker than the Earth’s atmospheric pressure at sea level. The atmosphere appears to condense and form polar caps during Pluto’s long winter. The first map of Pluto’s surface was made by the Hubble Space Telescope. It shows vague light and dark regions of unknown origin.\n\nWith a density about twice that of water, Pluto is apparently made of much rockier material than are the other planets of the outer solar system. This may be the result of the kind of cold-temperature/low-pressure chemical combinations that took place during the formation of the planet. Some astronomers have suggested that Pluto may be a former satellite of Neptune, knocked into a separate orbit during the early days of the solar system. Charon would then be an accumulation of the lighter materials resulting from the collision.
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It was Thales of Miletus, 635 BC - 543 BC who first described it. Ben Franklin missed this discover by over 2000 years.
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Yes, other stars with orbiting planets have been discovered. One is Upsilon Andromedae.
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the answer is jupiter.  galileo discovered io, europa, ganymede, and callisto in 1610.
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Issac Newton\n\nGallileo however proved that gravitational 'time to fall'was the same for 2 objects of different weights. Gallileo died 11 months before Newton's birth. There work was very complimentary. Newton established the gravitational constant that both backs up Gallileo and demonstrated that it is also gravity that causes the planets to orbit the Sun. The apple under the tree is a bit of a myth!
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Plato, I guess. the Question is too vague. Plato's geocentric system was refuted by Copernicus, but the Catholic Church refused to accept Copernicus's findings.
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Sol (our solar system) consists of 9 planets, over 140 moons (to date) and several small cosmic objects (comets and asteroids).\n\nMercury (0 moons)\nVenus (0 moons)\nEarth (1 moon)\nMars (2 moons)\nJupiter (63 moons as of 2004)\nSaturn (34 moons)\nUranus (21 named moons, 6 unnamed moons)\nNeptune (8 named moons, 5 unnamed moons)\nPluto (1 moon)\n\nThere have been discoveries of more "planetary objects" beyond Pluto, but they have not been declared to be planets in the same sense as the others.
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The planets were originally named by the Romans after their gods' names. However, they only knew the planets until Saturn, which is the farthest planet from Earth that can be observed by the naked human eye. Because of that, Uranus has the name of the Greek god of sky Ουρανός (Ouranos), instead of its correspondent in the roman mythology, Caelus.
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Uranus is the seventh planet from the Sun and the third largest (by diameter). Uranus is larger in diameter but smaller in mass than Neptune. \n\n        orbit:    2,870,990,000 km (19.218 AU) from Sun\n        diameter: 51,118 km (equatorial)\n        mass:     8.683e25 kg\n\n\nHardcopy The New Solar System \nSummarizes what we've learned from interplanetary explorations in the last 25 years. My primary reference for The Nine Planets. \n\nThe Compact NASA Atlas of the Solar System \nThis 'road map' of the solar system is the definitive guide for planetary science. \n\nThe Tempest \nby William Shakespeare \n\nThe Rape of the Lock \nby Alexander Pope \nCareful pronunciation may be necessary to avoid embarrassment; say "YOOR a nus" , not "your anus" or "urine us". \n\nUranus is the ancient Greek deity of the Heavens, the earliest supreme god. Uranus was the son and mate of Gaia the father of Cronus (Saturn) and of the Cyclopes and Titans (predecessors of the Olympian gods). \n\nUranus, the first planet discovered in modern times, was discovered by William Herschel while systematically searching the sky with his telescope on March 13, 1781. It had actually been seen many times before but ignored as simply another star (the earliest recorded sighting was in 1690 when John Flamsteed cataloged it as 34 Tauri). Herschel named it "the Georgium Sidus" (the Georgian Planet) in honor of his patron, the infamous (to Americans) King George III of England; others called it "Herschel". The name "Uranus" was first proposed by Bode in conformity with the other planetary names from classical mythology but didn't come into common use until 1850. \n\nUranus has been visited by only one spacecraft, Voyager 2 on Jan 24 1986. \n\n Most of the planets spin on an axis nearly perpendicular to the plane of the ecliptic but Uranus' axis is almost parallel to the ecliptic. At the time of Voyager 2's passage, Uranus' south pole was pointed almost directly at the Sun. This results in the odd fact that Uranus' polar regions receive more energy input from the Sun than do its equatorial regions. Uranus is nevertheless hotter at its equator than at its poles. The mechanism underlying this is unknown. \n\nActually, there's an ongoing battle over which of Uranus' poles is its north pole! Either its axial inclination is a bit over 90 degrees and its rotation is direct, or it's a bit less than 90 degrees and the rotation is retrograde. The problem is that you need to draw a dividing line *somewhere*, because in a case like Venus there is little dispute that the rotation is indeed retrograde (not a direct rotation with an inclination of nearly 180). \n\nUranus is composed primarily of rock and various ices, with only about 15% hydrogen and a little helium (in contrast to Jupiter and Saturn which are mostly hydrogen). Uranus (and Neptune) are in many ways similar to the cores of Jupiter and Saturn minus the massive liquid metallic hydrogen envelope. It appears that Uranus does not have a rocky core like Jupiter and Saturn but rather that its material is more or less uniformly distributed. \n\nUranus' atmosphere is about 83% hydrogen, 15% helium and 2% methane. \n\n Like the other gas planets, Uranus has bands of clouds that blow around  rapidly. But they are extremely faint, visible only with radical image enhancement of the Voyager 2 pictures (right). Recent observations with HST (left) show larger and more pronounced streaks. Further HST observations show even more activity. Uranus is no longer the bland boring planet that Voyager saw! It now seems clear that the differences are due to seasonal effects since the Sun is now at a lower Uranian latitude which may cause more pronounced day/night weather effects. By 2007 the Sun will be directly over Uranus's equator. \n\nUranus' blue color is the result of absorption of red light by methane in the upper a
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A sampling of famous astronomers\nAstronomer Contribution \nHipparchus and Ptolemy Determined the positions of about 1,000 bright stars, tried to explain the puzzles of astronomy without refuting only believed geocentric model of universe and classified stars by magnitude. \nAristarchus of Samos First known person to propound the heliocentric model of universe. Attempted to calculate the sizes and distances of the Sun and Moon. \nNasir al-Din al-Tusi This Persian astronomer gave the first extant exposition of the whole system of plane and spherical trigonometry. Made very accurate tables of planetary movements and named many stars. Developed the Tusi-couple which resolves linear motion into the sum of two circular motions. He also calculated the value of 51' for the precession of the equinoxes and contributed to construction and usage of astrolabe. \nNicolaus Copernicus First exponent of heliocentrism in modern times. \nTycho Brahe Did develop many important astronomical instruments, and achieved accurate measurments of the heavens by improving scentific methodology and by designing instruments on a large scale. His measurements of the orbit of Mars were very important to the development of astronomy. \nJohannes Kepler Suggested the elliptical orbits of planets, and propounded his Laws of Planetary Motion. \nGalileo Galilei Was the first to use the telescope to observe the sky. Condemned to house arrest for his discoveries by Inquisitional edict, which was lifted 359 years later by Pope John Paul II. \nIsaac Newton Published Philosophiae Naturalis Principia Mathematica (1687), containing the "Newton's laws of motion", which are fundamental to mechanical physics, and which explained Kepler's laws of planetary motion. Predicted the orbits of the planets. \nSubrahmanyan Chandrasekhar Extensive work on the internal mechanisms of stars, particularly known for determining the effect of special relativity on stars, including being the first to calculate the Chandrasekhar limit, which he did, without a calculator, on a boat journey. \nHenrietta Swan Leavitt Catalogued Cepheid variable stars in the Magellanic Clouds, in 1912 discovered the relationship between luminosty and periodicity in Cepheids -- leading to Hertzprung's later work. \nEjnar Hertzsprung determined the distance to several Cepheids, when Cepheids were detected in other galaxies such as the Andromeda galaxy, the distance to those galaxies could then be determined. \nEdwin Hubble Discovered the expansion of the universe. (Hubble's Law) The Hubble Orbiting Space Telescope was named in his honor.
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When the Sun was born. ;)  4.6 billion years ago.
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They were all early scientists who had different theories on the solar system. Copernicus thought it to be heliocentric, revolving around the sun, and Galileo and Newton thought the universe was geocentric, revolving around earth.
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Pluto was discovered by Clyde Tombaugh in 1930 at the Lowell Observatory in Flagstaff, AZ. (Not far from where I live.) It was named after the mythological Roman deity believed to rule the underworld. The 1st 2 letters of its name, "PL", are also the initials of astronomer Percival Lowell.\nFor many years, it was considered the 9th planet in our solar system, but recently lost that status. Personally, I think it's a shame. I'll always think of it as a planet.\nHere's a couple of links you can follow to learn more.
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yes.there is entirely a newly discovered solar system.there are 3 planets,all revolving around the star upilisone androemedae,and all of them are bigger than jupiter!and NASA has sent satellites which will go to pluto and beyond.hope we find the answers then!
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The LATEST (April, 2006) planets discovered in our GALAXY -\n(1)HD2246936 b\n(2)HD33283 b\n(3)HD86081 b\n\nSedna is the latest major object to be discovered in our solar system. It has NOT been officially designated as a planet yet, nor has its name been officially designated.
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solar system is the system which includes the sun and the nine planets along with the satellites of each planet , asteroids , meteorites.