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Topic: Minor planet


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In the News (Thu 23 Nov 17)

  
  IAU: Minor Planet Center
The Minor Planet Center (MPC) operates at the Smithsonian Astrophysical Observatory, under the auspices of Division III of the International Astronomical Union (IAU), with significant funding coming from subscriptions to the various services offered by the Center.
The MPC is responsible for the designation of minor bodies in the solar system: minor planets; comets (in conjunction with CBAT); and natural satellites (also in conjunction with CBAT).
Ephemerides and orbital elements for comets, NEOs, distant objects and bright minor planets.
www.cfa.harvard.edu /iau/mpc.html   (0 words)

  
  KryssTal: The Solar System: The Minor Planets
The four planets closest to the Sun are small and made of rock and metal.
The square of the period of a planet is proportional to the cube of its mean distance from the Sun.
The Surface Gravity of a planet is proportional to the planet's mass and inversely proportional to the square of the planet's radius.
www.krysstal.com /solarsys_minorplanets.html   (2120 words)

  
  * Minor planet - (Astronomy): Definition
A minor planet is an object in orbit around the Sun that is smaller than any of the major planets yet larger than meteoroids (that is, greater than 50m across),...
Asteroids: Also known as minor planets, Asteroids are small rocky bodies that usually orbit the Sun between the orbits of Mars and Jupiter.
Transneptunians are asteroids (minor planets) whose orbits have a semimajor axis beyond the orbit of the orbit of Neptune (but some of them have a perihelion inside the orbit of Neptune).
en.mimi.hu /astronomy/minor_planet.html   (869 words)

  
 Minor planet Information
Minor planets, or planetoids are minor bodies of the Solar system orbiting the Sun (or of other planetary systems orbiting other stars) that are larger than meteoroids (the largest of which might be taken to be around 10 meters or so across) but smaller than major planets (Pluto having a diameter of about 2306 km).
The term minor planet is sometimes used as a synonym for asteroid though this is technically incorrect; asteroids are one group of minor planets, a category which also includes Trans-Neptunian objects and other small bodies in our solar system and elsewhere.
Minor planets are divided into groups and families based on their orbital characteristics.
www.bookrags.com /wiki/Minor_planet   (2314 words)

  
 My Astronomy Glossary   (Site not responding. Last check: )
A Minor Planet with an average distance from the Sun of less than 30 AU (Neptune's orbit), but which never gets closer to the Sun than 5.2 AU (Jupiter's orbit).
A Minor Planet that's composed of a mixture of rock and ice (a "dirty snowball") which periodically dips close to the Sun, producing visible tails as ice gets blown off by the heat of the Sun.
A Distant Minor Planet whose average distance from the Sun is greater than 30 AU (Neptune's orbit).
astro.uchicago.edu /~puck/research/glossary.html   (234 words)

  
 The Minor Planets Section
Minor Planets present a limitless opportunity and challenge for observers.
It is the goal of the Minor Planets Section to support all aspects of minor planet study and publish the findings in the quarterly Minor Planet Bulletin.
Several categories of useful minor planet research are in progress by members of the Minor Planets Section.
www.labbey.com /ALPO/Minor.html   (546 words)

  
 Ceres (minor planet 1)
A dwarf planet according to a new classification scheme adopted by astronomers on Aug. 24, 2006.
There matters might have stood were it not for the fact that Ceres lay at the heliocentric distance predicted by the Titius-Bode law and therefore seemed as if it might be the missing planet that Johann Bode argued must exist between Mars and Jupiter.
The flout at the edges is due to a lack of data at the poles.
www.daviddarling.info /encyclopedia/C/Ceres.html   (744 words)

  
 When Did the asteroids Become Minor Planets?
The recent controversy over whether Pluto should be given a minor planet number and possibly be demoted from the ranks of the major planets has made me wonder about the similar controversy that occurred 150 years ago.
At the time the description 'minor planet' began to be used, the most widely disseminated values for the diameters of the first four asteroids discovered were Ceres, 2613 km; Pallas, 3380 km; Juno, 2290 km; and Vesta, "not more than 383 km" (Hughes 1994).
The event that appears to have triggered this reevaluation of the status of the asteroids was the introduction of a new set of symbols to use as a shorthand notation for the asteroids.
aa.usno.navy.mil /hilton/AsteroidHistory/minorplanets.html   (3812 words)

  
 Why The Secret About The 'New Planet'?
There are thousands of minor planets in the solar system, but only nine fully fledged major planets.
In 1999 one group from the US Minor Planet Centre proposed that Pluto be given a new joint classification so that it would keep its position among the major planets, but also be given a designation as a minor planet.
It should be left as as a minor planet 'permanently', he said.
www.rense.com /general67/newplanet.htm   (1277 words)

  
 Chronogram - What is a Planet? - Aug 2006   (Site not responding. Last check: )
It's a motley crew, to say the least, and it's clear that the definition of "planet" is either arbitrary or based on tradition; but it's not what you could call scientific.
Chiron, which was discovered in 1977, is not a planet candidate because it's only 230 or so kilometers across, and technically classed as a very large comet nucleus—but that's only for astronomers.
One of the definitions of a planet that the IAU will be considering would count in Ceres, Varuna and Quaoar among the lot, and leave Pluto in its current status.
www.chronogram.com /issue/2006/08/planetwaves/index.php   (728 words)

  
 minor planet - HighBeam Encyclopedia   (Site not responding. Last check: )
Family Planet links families to safe sites on the Internet; Launches Best of the Web in time for "Back to School".
Most are minor, but 100 a year are so violent they release more energy than an atomic bomb, with a huge cost in human life.(Features)
Planet Russell Mark: A California Naming Company Is Out of This World.
www.encyclopedia.com /doc/1E1-X-minorpla.html   (261 words)

  
 the minor planets in astrology
Minor planets or bodies are are anything smaller than major planets but larger than meteorites and most comets.
Minor planets, just like the minor gods, have a definite influence in the horoscope and in our lives, albeit less so than the major planets.
The minor ones can be further subdivided by tens, hundreds, or one thousand to arrive at that magical number of 144,000, the number of elect souls who, according to the bible, are to supposedly rule over the "normal" masses of humanity.
www.librarising.com /astrology/misc/minorplanets.html   (1452 words)

  
 Pluto
The planet received this name (after many other suggestions) perhaps because it's so far from the Sun that it is in perpetual darkness and perhaps because "PL" are the initials of Percival Lowell.
There is no Planet X. But that doesn't mean there aren't other objects out there, only that there isn't a relatively large and close one like Planet X was assumed to be.
Charon is unusual in that it is the largest moon with respect to its primary planet in the Solar System (a distinction once held by Earth's Moon).
seds.lpl.arizona.edu /nineplanets/nineplanets/pluto.html   (1526 words)

  
 10th Planet Xena 2003 UB313: Planet X / Wormwood Redeemed?   (Site not responding. Last check: )
The discovery of 2003 UB313, dubbed the 10th Planet Xena, was announced July 30th, 2005 by Dr Mike Brown and colleagues at Palomar Observatory near San Diego.
It is important to state that this planet is not Wormwood or Nibiru or the infamous Planet X (although it is a planet X, or previously unknown body past Neptune).
Planet Xena moves in areas of the sky that are viewed less.
www.escapeallthesethings.com /10th-planet-xena-2003-ub313.htm   (1450 words)

  
 IAU Website: MINOR PLANETS NAMING
The assignment of a particular name to a particular minor planet is the end of a long process that can take many decades.
The provisional designations are based on the date of discovery and are assigned by the Minor Planet Center (MPC) according to a well defined formula that involves the year of discovery, two letters and, if need be, further digits (for example 1989 AC or 2002 LM60).
When a Minor Planet receives a permanent number, the discoverer of the Minor Planet is invited to suggest a name for it.
www.iau.org /MINOR_PLANETS_NAMING.245.0.html   (606 words)

  
 Minor Planet Name Guide
All minor planet names are subject to the approval of the Committee for Small Body Nomenclature (CSBN), a working group of IAU Division III, in consultation with the IAU's Minor Planet Center (MPC).
Expanding on past practice, satellites of minor planets will, where possible and appropriate, receive names closely related to the name of the primary and suggesting the relative sizes.
The CSBN may choose to act on its own in naming a minor planet and has traditionally done so in each case in which the number is an integral number of thousands.
www.ss.astro.umd.edu /IAU/csbn/mpnames.shtml   (886 words)

  
 Minor Planet Named for John Muir - Johnmuir - Geography - John Muir Exhibit
The International Astronomical Union (IAU), through the Smithsonian Astrophysical Observatory's (SAO) Minor Planet Center (MPC), has announced the naming of a newly discovered minor planet in honor of pioneer conservationist John Muir.
The announcement was made in the June 2006 issue of the Minor Planet Circular, published by the SAO/MPC.
In the official citation for the name proposal, John Muir is recognized for his scientific contributions to the fields of glaciology and botany in the late 19th century, and for his tireless promotion of the National Park concept in the early 20th century.
www.sierraclub.org /john_muir_exhibit/geography/minor_planet_johnmuir.html   (496 words)

  
 Pluto added to official "minor planet" list - space - 07 September 2006 - New Scientist   (Site not responding. Last check: )
Pluto's status was changed from "planet" to "dwarf planet" at a meeting of the IAU in Prague on 24 August.
Many astronomers are unhappy with the new planet definition that excludes Pluto and some of them are organising a conference to come up with an alternative definition (see Astronomers plot to overturn planet definition).
That is because the IAU decided that Ceres, an asteroid already in the minor planet catalog, is also a "dwarf planet".
www.newscientist.com /article.ns?id=dn10028   (530 words)

  
 News | Gainesville.com | The Gainesville Sun | Gainesville, Fla.   (Site not responding. Last check: )
The Minor Planet Center operates at the Smithsonian Astrophysical Observatory (SAO), which is part of the Center for Astrophysics (CfA) along with the Harvard College Observatory (HCO).
Under the auspices of the International Astronomical Union, it is the official organization in charge of collecting observational data for minor planets (asteroids) and comets, calculating their orbits and publishing this information via the Minor Planet Circulars.
The Minor Planet Center was set up at the University of Cincinnati in 1947, under the direction of Paul Herget.
www.gainesville.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Minor_Planet_Center   (163 words)

  
 A Minor Planet Synchronized to Earth   (Site not responding. Last check: )
A 1400-year integration of minor planet 1989UQ with the earth and sun shows that it is synchronized to earth, with eight of its sidereal periods equal to seven sidereal years.
The earth and the minor planet share orbital energy to maintain this ratio exactly.
The minor planet librates about an equilibrium position with a mean amplitude of 8.2 degrees and a period of 159 years.
www.aas.org /publications/baas/v29n5/aas191/abs/S033006.html   (65 words)

  
 The Tenth Planet? | Science Buzz
The planet is a member of the Kuiper belt, which also claims Pluto and its satellite Charon as members.
The temporary names that planets get are based on the date of discovery and are given by the Minor Planet Center according to a well defined (and complicated) formula that includes the original year of discovery, two letters and, if needed, further digits.
The new planet is on an orbit that could be described in similar terms; half of the time in the vicinity of Pluto and half of the time much further away.
www.smm.org /buzz/blog/the_tenth_planet   (3408 words)

  
 Pluto May Lose Planet Designation
Two groups within the International Astronomical Union are thinking about reclassifying the relatively puny planet, either calling it a ``minor planet'' or lumping it in with an entirely new class of objects.
He'd like to see Pluto classified as a ``minor planet,'' of which there are thousands, then make it take a number.
``It's not a demotion,'' for Pluto to be referred to as the 10,000th minor planet, Marsden insisted.
cas.bellarmine.edu /tietjen/images/pluto_may_lose_planet_designatio.htm   (645 words)

  
 Planet Waves | Minor Planet Articles by Eric Francis | List Researched by Najma Abdulla
As part of the preparation for that coverage, we've gathered everything I've written on the minor planet so far The articles on this link are a collection of pieces I've written on the minor planets over the past six or so years.
This is the continuation to “Television, Man,” the June 25 Planet Waves Weekly essay on Chiron in Aquarius.
Even when a planet sweeps through a sign for an entire decade, it's possible to notice certain qualities about the essence of that generation's condition that relate to the planet's position.
www.planetwaves.net /minor_planet_astrology   (0 words)

  
 Software Bisque
Two minor planets were imaged and reduced in the same night and two rare vintage bottles of wine were awarded to Software Bisque, one for each light curve.
This process was repeated throughout the night while slewing between the two minor planets until a specified time at which the logged data was displayed on screen.
The light curves for the two minor planets are shown in Figure 1 and Figure 2.
www.bisque.com /tom/minorplanets/minor.asp   (927 words)

  
 Minor planet 11001 Andrewulff   (Site not responding. Last check: )
Initiated was this by the discoverer of this minor planet, Hans-Emil Schuster, who lives as retired astronomer here in Hamburg.
This minor planet is a really dim one and can only be spotted through a telescope.
This picture was exposed twice and so the minor planet can be seen as a "double star".
www.andrewulff.de /11001_e.html   (119 words)

  
 RASNZ Occultation Section - Minor Planet News (January 2004 to December 2005)
It has the heft of a real planet (latest estimates put it at about 20 percent larger than Pluto), a catchy code name (Xena, after the TV warrior princess), and a Guinness Book-ish record of its own (at about 97 astronomical units-or 9 billion miles from the sun-it is the solar system's farthest detected object).
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.
The 'peanut'-shaped minor planet appears 230 km (0".126) long with two lobes of radius 60 and 50 km separated by 120 km and perhaps linked by a bridge of matter 80 km wide, or as two connected components of radius 90 and 60 km (a 'snowman' shape) separated by a center-to-center distance of 115 km.
occsec.wellington.net.nz /planet/news/plannews.htm   (13809 words)

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