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syzygy Master Cartographer Reged: 10/06/05 Posts: 1530 Loc: Hungary Pluto       09/05/06 11:59 PM Edit   Reply   Quote   Quick Reply   wow! are you serious?! according to the APOD picture it is a "Dwarf Planet". actually this is a solar system object, member of the Kuiper-belt as far as i know, but let's see some trustable info from wikipedia: Pluto is a dwarf planet in the solar system, orbiting 29 - 49 AU from the Sun. About a fifth the mass of the Moon, Pluto is primarily composed of rock and water ice. It has an eccentric orbit that is highly inclined with respect to the planets and takes it closer to the Sun than Neptune during a portion of its orbit. Pluto and its largest satellite Charon have often been considered a binary system because they are more nearly equal in size than any of the planet/moon combinations in the solar system, and because the barycentre of their orbits does not lie within either body. Two smaller moons named Nix and Hydra were discovered in 2005. Pluto is smaller than several of the natural satellites or moons in our solar system. From its discovery by Clyde Tombaugh in 1930, Pluto was considered the ninth planet from the Sun. In the late 20th and early 21st century, many similar objects were discovered in the outer solar system, notably 2003 UB313 (nicknamed "Xena") which is slightly larger than Pluto. In August of 2006 the International Astronomical Union (IAU) redefined the term "planet", and classified Pluto (along with several other trans-Neptunian objects and the asteroid Ceres) as a dwarf planet. Pluto is also classified as the prototype of a family of trans-Neptunian objects. more... regards, g -------------------- Frequently Asked Questions have already been Answered Image hosting: ImageShack and photobucket avatar legend Edited by syzygy (09/06/06 12:05 AM) Post Extras

Entire topic Subject Posted by Posted on APOD - the best ever astronomy pics syzygy 09/04/06 07:59 AM A Bubble in Cygnus syzygy   11/17/08 01:43 AM A True Image from False Kiva syzygy   09/29/08 01:17 AM Yuri's Planet syzygy   04/12/08 04:52 AM Re: Yuri's Planet bullet_time   08/14/08 05:03 AM thanks and NGC 6888 syzygy   08/14/08 08:14 AM Stickney Crater, moon Phobos, Mars syzygy   04/11/08 09:59 AM What Do You See, Bright Eyes? - Mars syzygy   01/29/08 10:04 AM Bright Clumpy Moonlets and Cold Saturn Mittens syzygy   01/08/08 02:41 AM Saturn's Infrared Glow syzygy   12/29/07 03:06 AM Mars and Orion Over Monument Valley syzygy   12/26/07 04:15 AM City of Tiny Lights syzygy   11/17/07 03:34 AM Ring Scan syzygy   10/25/07 08:36 AM Circle of Confusion syzygy   10/20/07 08:24 AM The Fantastic Skies of Orphan Stars syzygy   10/18/07 09:49 AM Re: APOD - the best ever astronomy pics syzygy   10/11/07 10:30 AM A Hole in Mars Close Up syzygy   09/27/07 11:10 PM LUNAR TRANSIT syzygy   04/30/07 06:28 AM Carina Nebula Panorama from Hubble syzygy   04/25/07 06:19 AM NGC 5139: Omega Centauri syzygy   04/19/07 01:00 AM Sun in a new light -gallery- syzygy   03/31/07 02:41 AM Bullet Pillars in Orion syzygy   03/26/07 02:18 PM A Blue Crescent Moon from Space syzygy   03/20/07 12:27 AM Hubble's latest - disk galaxy NGC 5866 syzygy   03/05/07 01:23 PM Stars, Dust and Nebula in NGC 2170 syzygy   02/28/07 01:02 AM Re: APOD - the best ever astronomy pics swetepi   02/25/07 02:45 PM Planetary Nebula NGC 2440 syzygy   02/15/07 03:03 AM 'OIL SLICK' CLOUD syzygy   02/12/07 05:14 AM Galaxies Away syzygy   02/08/07 01:33 AM The Milky Way Over Paranal - animation syzygy   01/29/07 05:14 AM New Moon courting Venus & Comet McNaught arrives syzygy   01/20/07 09:27 AM Upgrading ISS syzygy   12/26/06 01:57 AM Re: Upgrading ISS Kempster   12/26/06 06:54 AM Re: Upgrading ISS syzygy   12/26/06 07:00 AM IC 2118: The Witch Head Nebula syzygy   12/12/06 04:58 AM Beauty of the Sky - by Éder Iván astrophotographer syzygy   10/30/06 12:47 PM Re: Beauty of the Sky - by Éder Iván astrophotogra heamit   01/22/07 01:13 AM Help Search for Interstellar Dust !!! syzygy   10/26/06 01:36 AM saturn -heavenly glory- syzygy   10/16/06 02:02 PM Re: saturn -heavenly glory- no_stranger   03/04/07 11:29 AM Re: APOD - the best ever solar sys pic Aulo   10/05/06 09:22 AM Re: APOD - the best ever solar sys pic syzygy   10/05/06 10:36 AM Re: APOD - the best ever solar sys pic Villaman   09/06/06 12:16 AM Re: APOD - the best ever solar sys pic masterlink78   09/05/06 04:06 PM Pluto syzygy   09/05/06 11:59 PM

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