Following the discovery of the planet Neptune in 1846‚ there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell’s quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the gas giants‚ particularly Uranus and Neptune‚[1] speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough
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know that our solar system has a total of eight planets‚ after they decided Pluto wasn’t a planet it was then know to be a dwarf planet. What if there are other planets in our solar system? With advanced technology they did it‚ they found another planet that’s in our solar system‚ but it’s not proven yet. The high tech computers detect a planet but it has still not been seen by the human eye. So what this means is the the planet isn’t officially a planet until it has been seen by a human for it to be
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consists of the sun and nine planets. Mercury is the closest planet to the sun. Mercury was named after the Roman God of Commerce and Thievery. It might have gotten its name because of the way it quickly appears and disappears from Earth’s view. Mercury is the second smallest planet in the solar system; Pluto is the only planet that is smaller. Earth’s diameter is about 7‚200‚ while tiny Mercury has less than half of that size‚ about 3‚000 miles in diameter. Mercury‚ a planet‚ is smaller than Ganymede
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found more and more ‘super-Earths’‚ which is a term used for an extrasolar planet that has a mass higher than planet Earth’s but below the mass of the solar systems’ gas giants. In some cases‚ these super-Earths contain water as well as potential living support. In 2011‚ fifty new planets were found. Sixteen of them are super-Earths. As the article states‚ these planets were found by a High Accuracy Radial Velocity Planet Searcher – HARPS for short. This instrument has found two-thirds of known
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A Potentially Habitable Planet? A team of astronomers led by Steven Vogt of the University of California‚ and Paul Butler of the Carnegie Institution of Washington have found a rocky earth-sized planet that might be habitable (Haghighipour‚ Nader 2010). The new exoplanet called Gliese 581g orbits the red dwarf star Gliese 581 in the constellation Libra and it is the sixth planet that the astronomers have found around its star. Gliese 581g is about 20 light years away‚ which is roughly 117.5 trillion
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Terrestrial and Jovian Planets Our solar system contains nine planets‚ which are broken down into 2 classifications known as terrestrial planets and jovian planets. The terrestrial planets are composed primarily of rock and metal. They also generally have high densities‚ slow rotation‚ solid surfaces‚ no rings‚ and few satellites. These planets include Mercury‚ Venus‚ Earth‚ and Mars. On the other hand‚ the jovian planets are composed primarily of hydrogen and helium. They generally have
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ASTRONOMY DWARF PLANETS POSSIBLE DWARF PLANETS Sedna- discovered on November 14‚ 2003 2007OR10-discovered on July 17‚ 2007 Quaoar-discovered on June 5‚ 2002 Orcus-discovered on February 17‚ 2004 Official dwarf planets 1. Ceres – discovered on January 1‚ 1801 (45 years before Neptune)‚ 2. Pluto – discovered on February 18‚ 1930‚. 3. Haumea – discovered on December 28‚ 2004. 4. Eris – discovered on January 5‚ 2005. 5. Makemake – discovered on March 31‚ 2005. ERIS Is the largest known dwarf planet in the solar
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Culler‚ J. (2011‚ December 7). Kepler A search for Habitable Planets. Retrieved from NASA: http://www.nasa.gov/mission_pages/kepler/news/kepscicon-briefing.html Jones‚ J. (2011‚ May 1). Nanomaterials Transforms Hairstyling Tools. Retrieved from NASA: http://spinoff.nasa.gov/Spinoff2010/cg_5.html Wilson‚ J. (2011‚ August 25). About NASA. Retrieved from NASA: http://www.nasa.gov/about/highlights/what_does_nasa_do.html Living On Another Planet | Kepler 22-b | | Jessica Loyd | 11/1/2012 | For my
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Stewart Mrs.Ligammari Physics 11 9 June 2010 Is Pluto a Planet? When the International Astronomical Union announced that Pluto was no longer a planet people around the world were shocked. The 9 planets that they were used to knowing by the mnemonic code “My very elegant mother just served us nine pizzas” lost their pizza. Despite the fact that Pluto is a celestial object that orbits the sun‚ it cannot be considered a planet because of its inconsistency in orbit‚ its size‚ and the abundance
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The solar system consists of the Sun and 9 planets revolving around it in different orbits. The statistics of the sun and the planets are given below : SUN Age : About 5 Billion years Distance : 149.8 Million Kms Diameter : 1‚38‚400 Kms. Photosphere temperature : 5‚770 K Core temperature : 150‚000‚000 K Absolute visual magnitude : 4.75 Rotation (as seen from the earth at the equator) : 25.38 days Rotation (near the poles) : 33 days The sun consists of 71% of Hydrogen‚ 26.5% Helium and
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