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Topic: Tenth planet


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In the News (Sat 26 Dec 09)

  
  Tenth Planet :: Astrobiology Magazine - earth science - evolution distribution Origin of life universe - life beyond ...
The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine planets already known means that it can only be classified as a planet.
The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine planets already known means that it can only be classified as a planet, Brown says.
The reflectance of the planet is not yet known--in other words, it's not yet possible to tell how much light from the sun is reflected away--but the amount of light the planet reflects puts a lower limit on its size.
www.astrobio.net /news/modules.php?op=modload&name=News&file=article&sid=1664&mode=thread&order=0&thold=0   (658 words)

  
  Tenth planet - Wikipedia, the free encyclopedia
Tenth planets have frequently appeared in fiction, and media reports of new trans-Neptunian object (TNO) discoveries have also used the label with some frequency.
The Planet X hypothesis, first put forth by Percival Lowell in the late 19th century, stated that there was a fifth gas giant beyond the orbit of Neptune, providing the most common basis for the existence of a tenth planet.
The major planets are, by tradition, named after Greco-Roman gods; in Greco-Roman mythology Roman Pluto corresponds to Greek Hades, and Persephone is Hades' wife, held in the darkness of the underworld, hence hers is thought an appropriate name for the 10th planet.
en.wikipedia.org /wiki/Tenth_planet   (1530 words)

  
 Planet X - Wikipedia, the free encyclopedia
Planet X was a large hypothetical planet orbiting beyond the orbit of Neptune.
Its existence, first as a ninth planet, and after 1930 as a tenth, was postulated on the basis of apparent discrepancies in the orbits of the gas giants, especially those of Uranus and Neptune.
Planet X is the name of a Pocket Books novel that depicts a meeting between Marvel Comics characters the X-Men and the Star Trek characters that originated in Star Trek: The Next Generation, set in the Star Trek universe.
en.wikipedia.org /wiki/Planet_X   (1146 words)

  
 The Tenth Planet's First Anniversary by Ken Croswell
Because the tenth planet's orbit is so long, and because it moves so slowly along that orbit, the new world takes a long time to revolve around the Sun.
Thus, the ninth and tenth planets appear to be twin planets--as are Uranus and Neptune, the seventh and eighth planets.
However, by tracking the tenth planet's moon, astronomers will be able to measure the planet's mass--because the moon feels the planet's gravity, which depends on the planet's mass.
kencroswell.com /TenthPlanetFirstAnniversary.html   (1051 words)

  
 The Tenth Planet: Facts and details from Encyclopedia Topic   (Site not responding. Last check: )
The Tenth Planet is a serial[Follow this hyperlink for a summary of this subject] in the British[Follow this hyperlink for a summary of this subject] science fiction television[Follow this hyperlink for a summary of this subject] series Doctor Who Doctor Who quick summary:
Earth, also known as the earth or terra, is the third planet outward from the sun....
Planet of the spiders is a serial in the united kingdombritish science fiction television series doctor who, which was first broadcast in six weekly...
www.absoluteastronomy.com /encyclopedia/t/th/the_tenth_planet.htm   (2689 words)

  
 Caltech Press Release, 7/29/2005, Dr. Mike Brown
The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine planets already known means that it can only be classified as a planet, Brown says.
The reflectance of the planet is not yet known--in other words, it's not yet possible to tell how much light from the sun is reflected away--but the amount of light the planet reflects puts a lower limit on its size.
Determination of the upper limit of the size of the planet is constrained by results from the Spitzer Space Telescope, which has already proved its mettle in studying the heat of dim, faint, faraway objects such as the Kuiper-belt bodies.
pr.caltech.edu /media/Press_Releases/PR12724.html   (462 words)

  
 Saturn
The planet was discovered using the Samuel Oschin Telescope at Palomar Observatory near San Diego, Calif. The discovery was announced today by planetary scientist Dr. Mike Brown of the California Institute of Technology in Pasadena, Calif., whose research is partly funded by NASA.
The planet is a typical member of the Kuiper belt, but its sheer size in relation to the nine known planets means that it can only be classified as a planet, Brown said.
A name for the new planet has been proposed by the discoverers to the International Astronomical Union, and they are awaiting the decision of this body before announcing the name.
www.solarviews.com /eng/tenthplanet.htm   (485 words)

  
 Astronomers confirm existence of a tenth planet at the outer reaches of solar system - [Sunday Herald]   (Site not responding. Last check: )
He labelled the body the tenth planet, but the astronomical world is already divided over whether Pluto really is a planet and similar doubts are likely to be raised over this latest discovery.
The new planet, if planet it is, is so far away that an observer standing on its surface could cover the view of the sun with the head of a pin.
The procedure for approving a new planet is somewhat hazy, since there is no official definition of what a planet is, and no new bodies have received that designation since Pluto was discovered in 1930.
www.sundayherald.com /51061   (1070 words)

  
 New Planet
The dwarf planet is the most distant object ever seen in orbit around the sun, even more distant than Sedna, the planetoid discovered almost 2 years ago.
Such a measurement is possible by measuring the mass of the planet by looking at the way its moon goes around it and then dividing this mass by the volume (which we know because we know the size).
The new planet is on an orbit that could be described in similar terms; half of the time it is in the vicinity of Pluto and half of the time much further away.
www.gps.caltech.edu /~mbrown/planetlila   (5829 words)

  
 New Scientist SPACE - Breaking News - Tenth planet discovered in outer solar system   (Site not responding. Last check: )
Astronomers have found a tenth planet, larger than Pluto and nearly three times farther from the Sun as Pluto is today.
Temporarily designated 2003 UB313, the new planet is the most distant object yet seen in the solar system, 97 times farther from the Sun than the Earth is. It also is the largest body yet found orbiting in the Kuiper belt, the group of icy bodies including Pluto which orbit beyond Neptune.
The survey first spotted the new planet in October 2003, but it was not until 8 January 2005 that Brown realised the object was so distant that its brightness meant it had to be very big.
www.newscientistspace.com /article.ns?id=dn7763   (842 words)

  
 The Tenth Planet's First Anniversary by Ken Croswell
Because the tenth planet's orbit is so long, and because it moves so slowly along that orbit, the new world takes a long time to revolve around the Sun.
Thus, the ninth and tenth planets appear to be twin planets--as are Uranus and Neptune, the seventh and eighth planets.
However, by tracking the tenth planet's moon, astronomers will be able to measure the planet's mass--because the moon feels the planet's gravity, which depends on the planet's mass.
www.kencroswell.com /TenthPlanetFirstAnniversary.html   (1391 words)

  
 NASA - 10th Planet Discovered
The planet, which hasn't been officially named yet, was found by Brown and colleagues using the Samuel Oschin Telescope at Palomar Observatory near San Diego.
This places the new planet more or less in the Kuiper Belt, a dark realm beyond Neptune where thousands of small icy bodies orbit the sun.
The planet was discovered by, in addition to Brown, Chad Trujillo, of the Gemini Observatory in Mauna Kea, Hawaii, and David Rabinowitz, of Yale University, New Haven, Connecticut.
science.nasa.gov /headlines/y2005/29jul_planetx.htm?list39638   (553 words)

  
 New Scientist SPACE - Breaking News - Moon discovered orbiting tenth planet
The tenth planet in the solar system has a moon at least a tenth of its size.
The tenth planet is not officially a planet - for now its only official designation is 2003 UB313.
The moon is ten times closer to its planet that our Moon is to Earth, and the pair are 97 times further from the Sun than the Earth is. Viewed from Earth, they are separated by only half an arc-second.
www.newscientistspace.com /article/dn8086   (611 words)

  
 In The Field: 'Tenth Planet' found to be a whopper
The issue seems to be that finding a definition of "planet" to match simple physical parameters of orbiting lumps of rock is difficult, and that UB313 must be defined as a "planet" to be given a name that is sufficiently euphonious to encourage astrologers, poets, and the like.
Earth is a planet even though the surface layer (oceans and continents) is not uniformly differentiated, but if the crust is included to a deeper depth it becomes more so.
A planet is a planet even if it is one of a double planet or an artificially created rosette.
blogs.nature.com /news/blog/2006/02/tenth_planet_found_to_be_a_who.html   (3703 words)

  
 Track the discovery of tenth planet in solar system
Now that astronomers have found a tenth planet in our solar system, science will be focused on obtaining as much information as possible about this new planetary object.
The Tenth Planet will serve to document each new finding so that those interested will have the latest planetary news at all times.
The Tenth Planet is dedicated to serving as a repository of data about the newest astronomical discovery - the 10th planet.
www.prweb.com /releases/2005/8/prweb267611.php   (431 words)

  
 BBC - h2g2 - The Tenth Planet
The putative planet is huge; its mass has been placed at one-and-a-half to six times the mass of Jupiter, which is, in itself, rather large as planets go.
Its orbit would have to be steeply inclined to that of the other planets, and it probably orbits the sun in the opposite sense, both features indicating that it was probably not formed along with the other planets but a wandering body that was captured by the Sun's gravity.
The confirmation of the existence of a tenth planet, especially an interstellar interloper, would be a momentous event for everyone interested in the heavens.
www.bbc.co.uk /dna/h2g2/A410941   (627 words)

  
 A Tenth Planet?
The assertion of a tenth planet, however, is not without controversy, reviving the debate about what defines a planet and again calling into question whether the diminutive Pluto fits the bill.
Beyond Pluto - In July 2005, a possible tenth planet, temporarily called 2003 UB313, was announced by a team from...
Tenth Planet Explorations secures additional $4.0 million of venture capital; two new distribution agreements demonstrate company's momentum.
www.infoplease.com /ipa/A0931948.html   (689 words)

  
 CNN.com - Astronomers claim discovery of solar system's 10th planet - Jul 31, 2005
Brown concedes that both Pluto and his new planet are Kuiper objects -- but he argues they are also both big enough to be classified as planets.
Brown's team has submitted a name for its proposed planet to the IAU, which won't be announced until the astronomy group hands down its ruling.
"All of the planets are in a disc around the sun, and this object is 45 degrees out of that disc," he said.
edition.cnn.com /2005/TECH/space/07/30/new.planet   (491 words)

  
 Scientific Thoughts: Tenth Planet!!
Because Spitzer is unable to detect the new planet, the overall diameter of the planet has to be less than 2,000 miles.
A name for the new planet has been proposed by the discoverers (Mike Brown, Chad Trujillo, and David Rabinowitz) to the International Astronomical Union, and they are awaiting the decision of this body before announcing the name:):).
All the other planets are named after Roman gods, it is a shame to see that pattern not being followed.
scithought.blogspot.com /2005/07/tenth-planet.html   (2060 words)

  
 Tenth planet discovered in outer solar system - space - 30 July 2005 - New Scientist Space
Astronomers have found a tenth planet, larger than Pluto and nearly three times farther from the Sun as Pluto is today.
Temporarily designated 2003 UB313, the new planet is the most distant object yet seen in the solar system, 97 times farther from the Sun than the Earth is. It also is the largest body yet found orbiting in the Kuiper belt, the group of icy bodies including Pluto which orbit beyond Neptune.
The survey first spotted the new planet in October 2003, but it was not until 8 January 2005 that Brown realised the object was so distant that its brightness meant it had to be very big.
space.newscientist.com /article.ns?id=dn7763   (1031 words)

  
 US Astronomers Say They Have Found a 10th Planet Beyond Pluto   (Site not responding. Last check: )
Seventy-five years after the discovery of the planet Pluto, U.S. astronomers say they have discovered a tenth planet far beyond Pluto in the outlying region of the solar system.
Brown estimates the new planet to be about 1 1/2 times Pluto's size, but nearly twice as far from the Sun at the most distant point in its oval orbit.
Brown says the new planet is bright enough for amateur astronomers to see it now that the location is known.
www.voanews.com /english/2005-07-30-voa1.cfm   (636 words)

  
 Space Today Online -- Solar System Kuiper Belt mystery objects - tenth planet
A body said to be as much as 1.5 times the size of the planet Pluto and located about 9.7 billion miles from the Sun is being called the tenth planet of the Solar System.
The orbits of the first eight planets are nearly circular and in a thin disk around the sun.
While Quaoar is beyond the farthest known planets, some 95 percent of all known minor planets are closer in an orbit known as the Asteroid Belt, which lies between the orbits of the major planets Mars and Jupiter.
www.spacetoday.org /SolSys/KuiperBelt/Quaoar.html   (4066 words)

  
 Scientists Discover Tenth Planet
The astronomer conceded he and his team did not know the exact size of the new planet, but its brightness and distance tell them that it is at least as large as Pluto, which measures 2,302 kilometers (1,438 miles) in diameter.
The astronomers have proposed a name for the "planet" to the science's governing body, the International Astronomical Union, and are awaiting the decision of this body before announcing it.
The planet has not been noticed previously because its orbit is at a 45 degree angle to the rest of the solar system, he said.
www.spacedaily.com /news/outerplanets-05j.html   (847 words)

  
 BBC - h2g2 - Sedna - The Tenth Planet?
The Media-dubbed 'Tenth Planet', recently named Sedna after the Inuit Goddess of the Sea, was discovered on the Samuel Oschin Telescope, Mount Palomar facility, California, USA in November 2003.
Indeed, after this discovery, images of the planet were found on pictures taken as far back as 1996, though it was not then thought to be anything more than a star or a stray comet.
The planet's colour is said to be red and very shiny, however, because this combination is very unusual, the estimates as to what the planet is actually made of is as yet unknown.
www.bbc.co.uk /dna/h2g2/A4149470   (1111 words)

  
 CNN.com - Astronomers claim discovery of solar system's 10th planet - Jul 31, 2005
Brown concedes that both Pluto and his new planet are Kuiper objects -- but he argues they are also both big enough to be classified as planets.
Brown's team has submitted a name for its proposed planet to the IAU, which won't be announced until the astronomy group hands down its ruling.
"All of the planets are in a disc around the sun, and this object is 45 degrees out of that disc," he said.
www.cnn.com /2005/TECH/space/07/30/new.planet/index.html   (524 words)

  
 SPACE.com -- Object Bigger than Pluto Discovered, Called 10th Planet
This time-lapse image of a newfound planet in our solar system, called 2003UB313, was taken on Oct. 21, 2003, using the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif. The planet, circled in red, is seen moving across a field of stars.
Brian Marsden, who runs the Minor Planet Center where data on objects like this are collected, says that if Pluto is a planet, then other round objects nearly as large as Pluto ought to be called planets.
The reflectiveness of the new planet is not known, however, which is why the estimate of its diameter ranges from one to two times the size of Pluto.
www.space.com /scienceastronomy/050729_new_planet.html   (1451 words)

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