Where results make sense

About us   |   Why use us?   |   Reviews   |   PR   |   Contact us

Topic: List of orbits

    Note: these results are not from the primary (high quality) database.

List of periodic comets The orbits of periodic comets are especially tricky to calculate because of all the possible perturbations from every planet, and in the days before computers some people dedicated their entire careers to this. Even so, quite a few comets were lost because their orbits are also affected by non-gravitational effects such as the release of gas and other material that forms the comet's coma and tail. In nearly all cases, comets are named after their discoverer(s), but in a few cases such as 2P/Encke and 27P/Crommelin they were named for a person who calculated their orbits. www.sciencedaily.com /encyclopedia/list_of_periodic_comets   (212 words)

Comet - Voyager, the free encyclopedia He noted that three of these, the comets of 1531, 1607, and 1682, had very similar orbital elements, and he was further able to account for the slight differences in their orbits in terms of gravitational perturbation by Jupiter and Saturn. It is clear that comets coming in from the Oort cloud often have their orbits strongly influenced by the gravity of giant planets as a result of a close encounter. A comet is a small body in the solar system that orbits the sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail — both due primarily to the effects of solar radiation upon the comet's nucleus, which itself is a minor planet composed of rock, dust, and ices. voyager.in /Comet   (4525 words)

ipedia.com: List of periodic comets Article The orbits of periodic comets are especially tricky to calculate because of all the possible perturbations from every planet, and in the days before computers some people dedicated their entire careers to this. Even so, quite a few comets were lost because their orbits are also affected by non-gravitational effects such as the release of gas and other material that forms the comet's coma and tail. In nearly all cases, comets are named after their discoverer(s), but in a few cases such as 2P/Encke and 27P/Crommelin they were named for a person who calculated their orbits. www.ipedia.com /list_of_periodic_comets.html   (208 words)

Apollo: The Moon Missions Lunar surface stay-time, 71 hours; in lunar orbit 126 hours, with 64 orbits. Lunar surface stay-time, 31.5 hours; in lunar orbit 89 hours, with 45 orbits. Lunar surface stay-time, 33.5 hours; 67 hours in lunar orbit, with 34 orbits. www-pao.ksc.nasa.gov /history/apollo/flight-summary.htm   (465 words)

1-ACCREATION Theory A key discovery in developing this new Accreation Theory came in 1987 from listing most of the larger known bodies in the Solar System by size. Callisto Jupiter 4,806 Spherical; orbits Jupiter 16hr32'; heavily cratered [See list below] This list produced an illuminating fact—all smaller solar bodies appear to be irregularly-shaped, but as diameters reach ~400-600 km (~250-375 mi), they become nearly spherical, and www.expanding-earth.org /page_1.htm   (1121 words)

info: 3753 CRUITHNE Other examples of natural bodies known to be in horseshoe orbits at the time of writing include Janus and Epimetheus, natural satellites of Saturn. Three other near-Earth asteroids (NEAs), (54509) 2000 PH and 2002 AA, which exist in resonant orbits similar to Cruithne's, have since been discovered. The orbits these two moons follow around Saturn are much simpler than the one Cruithne follows, but operate along the same general principles. www.info-monaco.com /3753_Cruithne   (1121 words)

Comet - Wikipedia, the free encyclopedia Comets are now designated by the year of their discovery followed by a letter indicating the half-month of the discovery and a number indicating the order of discovery (a system similar to that already used for asteroids), so that the fourth comet discovered in the second half of February 2006 would be designated 2006 D4. He noted that three of these, the comets of 1531, 1607, and 1682, had very similar orbital elements, and he was further able to account for the slight differences in their orbits in terms of gravitational perturbation by Jupiter and Saturn. A comet is a small body in the solar system that orbits the sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail -- both due primarily to the effects of solar radiation upon the comet's nucleus, which itself is a minor planet composed of rock, dust, and ices. en.wikipedia.org /wiki/Comet   (4380 words)

Astronomy - Comets - Francis Reddy Long-period comets may arrive from any direction, their elongated orbits randomly oriented to the orbits of the planets, while the short-period comets are confined closer to the ecliptic. A small and relatively inactive comet, it was discovered first by the Infrared Astronomical Satellite (IRAS) in late April and originally identified as an asteroid. Comet Hyakutake (C/1996 B2) was, in the words of Brooks Observatory comet expert John Bortle, "one of the grandest of the millennium." It was discovered visually by Japanese amateur Yuji Hyakutake when at a distance of 2.0 AU — and only 55 days before its closest approach to Earth (March 25, 1996, 0.102 AU). www.astronomy.com /asy/default.aspx?c=ss&id=78   (3137 words)

List of asteroids -- Facts, Info, and Encyclopedia article All of these have now been recovered; the last "lost" numbered asteroid was (Click link for more info and facts about 719 Albert) 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). Asteroids whose orbits are not (yet) precisely known are known by their systematic name (see (Click link for more info and facts about provisional designation) provisional designation). In extreme cases, such as "lost" asteroids, there may be a considerable mismatch: for instance the high-numbered (Click link for more info and facts about 69230 Hermes) 69230 Hermes was originally discovered in 1937, but was lost until 2003. www.absoluteastronomy.com /encyclopedia/L/Li/List_of_asteroids.htm   (3137 words)

COMET FACTS AND INFORMATION Comets are now designated by the year of their discovery followed by a letter indicating the half-month of the discovery and a number indicating the order of discovery (a system similar to that already used for asteroids), so that the fourth comet discovered in the second half of February 2006 would be designated 2006 D4. Over the period 1819-1821 the German mathematician and physicist Johann_Franz_Encke computed orbits for a series of cometary apparitions observed in 1786, 1795, 1805, and 1818, concluded they were same comet, and successfully predicted its return in 1822.By 1900, seventeen comets had been observed at more than one perihelion passage and recognized as periodic comets. He noted that three of these, the comets of 1531, 1607, and 1682, had very similar orbital_elements, and he was further able to account for the slight differences in their orbits in terms of gravitational perturbation by Jupiter and Saturn. www.witwib.com /index.php?s=comet   (3621 words)

Desi Hot OR Hot This was followed by the first known model of planetary motion given by Kepler in the early 17th century, where he proposed that the planets follow not circular orbits, but elliptical orbits with the Sun at one focus of the ellipse. The famous Earthrise picture, taken in 1968 by the astronauts of Apollo 8, was important in creating awareness of the finiteness of Earth, and the limits of its natural resources. Also in the early 17th century, Galileo pioneered the use of experiment to validate physical theories, which is the key idea in the scientific method. www.desihotornot.com /encyclopedia?title=History_of_science   (3117 words)

Encyclopedia: Solar system Comet Hale-Bopp, showing a white dust tail and blue gas tail (February 1997) A comet is a small body in the solar system that orbits the sun and (at least occasionally) exhibits a coma (or atmosphere) and/or a tail -- both due primarily to the effects of solar radiation... (Natural satellites of major planets also range smoothly from small non-spherical objects to large spherical ones, and the largest are larger than 1 Ceres, the largest asteroid.) 1 Ceres (seer-eez, Latin CerÄ“s) was the first asteroid to be discovered. In physics, for a given gravitational field and a given position, the escape velocity is the minimum speed an object without propulsion, at that position, needs to have to move away indefinitely from the source of the field, as opposed to falling back or staying in an orbit within a... www.nationmaster.com /encyclopedia/Solar-system   (3117 words)

Asteroid article - Asteroid Solar System minor planet planets protoplanetary disc moons - What-Means.com As of August 5, 2004, 85,117 "minor planets" had had their orbits calculated well enough to be given official numbers and 11,559 of these had been officially named. Asteroids are commonly classified into groups based on the characteristics of their orbits and on the details of the spectrum of sunlight they reflect. The term "minor planet" (or "planetoid") carries no strong suggestion about the composition of the object or its general location in the solar system, and some argue that not every minor planet should be called an "asteroid". www.what-means.com /encyclopedia/Asteroid   (3117 words)

Meteor shower - Wikipedia, the free encyclopedia For instance, Mars is known to have meteor showers, although these will be different than the ones seen on Earth because the different orbits of Mars and Earth will intersect with orbits of comets in different ways. Most meteors seen in meteor showers are caused by particles smaller than a grain of sand. Each time a periodic comet swings by the Sun, it produces large amounts of small particles which will eventually spread out along the entire orbit of the comet to form a meteoroid "stream". en.wikipedia.org /wiki/Meteor_shower   (385 words)

ipedia.com: List of asteroids Article All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzalcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). This is a list of numbered asteroids, in sequential order. Asteroids whose orbits are not (yet) precisely known are known by their systematic name (see provisional designation). www.ipedia.com /list_of_asteroids.html   (498 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). This is a list of numbered asteroids, in sequential order. Asteroids whose orbits are not (yet) precisely known are known by their systematic name (see provisional designation). hallencyclopedia.com /List_of_asteroids   (662 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). This is a list of numbered asteroids, in sequential order. Asteroids whose orbits are not (yet) precisely known are known by their systematic name (see provisional designation). hallencyclopedia.com /List_of_asteroids   (662 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see http://cfa-www.harvard.edu/iau/lists/LastUnusual.html), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). Asteroids whose orbits are not (yet) precisely known are known by their systematic name (see provisional designation). In extreme cases, such as "lost" asteroids, there may be a considerable mismatch: for instance the high-numbered 69230 Hermes was originally discovered in 1937, but was lost until 2003. www.datamass.net /li/list-of-asteroids.html   (474 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (678 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see http://cfa-www.harvard.edu/iau/lists/LastUnusual.html), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). For a smaller list of "interesting" asteroids, see List of noteworthy asteroids. This is a list of numbered asteroids, in sequential order. www.datamass.net /li/list-of-asteroids.html   (474 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (662 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (662 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (678 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (662 words)

ipedia.com: List of asteroids Article All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzalcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). This is a list of numbered asteroids, in sequential order. Asteroids whose orbits are not (yet) precisely known are known by their systematic name (see provisional designation). www.ipedia.com /list_of_asteroids.html   (498 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (678 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (662 words)

List of asteroids -- Facts, Info, and Encyclopedia article All of these have now been recovered; the last "lost" numbered asteroid was (additional info and facts about 719 Albert) 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). For a smaller list of "interesting" asteroids, see (additional info and facts about List of noteworthy asteroids) List of noteworthy asteroids. (additional info and facts about List of Amor asteroids) List of Amor asteroids www.absoluteastronomy.com /encyclopedia/l/li/list_of_asteroids.htm   (610 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). Center (MPC) posts a list of newly identified asteroids and comets on its... This is a list of numbered asteroids, in sequential order. hallencyclopedia.com /List_of_asteroids   (678 words)

List of asteroids All of these have now been recovered; the last "lost" numbered asteroid was 719 Albert (although 1915 Quetzálcoatl and (3360) 1981 VA have not been seen since 1985 (see [1]), their orbits are known and close Earth approaches are due in 2062 and 2085 respectively). to science's official list of ``potentially hazardous asteroids.'' In 1998, scientists... Center (MPC) posts a list of newly identified asteroids and comets on its... hallencyclopedia.com /List_of_asteroids   (678 words)

Try your search on: Qwika (all wikis)

About us   |   Why use us?   |   Reviews   |   Press   |   Contact us   Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.