Onafhankelijk Ruimtevaart en Technologie Centrum /-^-\ SPACE.Cweb.NL
Nieuwsberichten
 
Het laatste nieuws
  • Laatste Nieuws
  • Populair Nieuws
  • Spacestation ISS
  • Shuttle Nieuws
  • Space Specials
  • Satelliet Nieuws
  • Planeten Nieuws
  • Universum Nieuws
  • Amateur Satelliet
  • Onderwijs / Studie
  • Wetenschap/Onderz.
  • Evenementen
  • Lanceringen
  • China ruimtevaart
  • UFO en Mysteries
  • Space Columns
  • Live NASA TV

    Follow spacecweb on Twitter

  • IK BEN EEN FAN !
    Alle donaties zullen worden gebruikt voor deze website.

    U kunt ook via de bank een donatie doen op reknr: P7301796 tnv
    ONTWIKKEL.COM
    te MAARSSEN

    SPACE SHUTTLES
  • OV-105 / Endeavour
  • OV-104 / Atlantis
  • OV-103 / Discovery
  • OV-102 / Columbia
  • SHUTTLE Missies
  • Missie STS-122
  • Missie STS-116
  • Missie STS-115
  • Missie STS-121
  • Missie STS-114
  • Missie STS-107
  • Missie STS-113
  • SHUTTLE Comm.
  • Radio Frequency
  • Opname STS-121
  • ISS Expeditions
  • ISS Expeditie 16
  • ISS Expeditie 15
  • ISS Expeditie 14
  • ISS Expeditie 13
  • ISS Expeditie 12
  • ISS Expeditie 11
  • ISS Expeditie 10
  • ISS / ZARYA
  • ISS boven NL
  • ISS Tracker in 3D
  • ISS bemanning
  • ISS luisteren
  • ISS Frequentie
  • BERT's Columns
  • Formatie satell...
  • Trends in ruimt...
  • Weer naar maan
  • De raket
  • Nut van ruimte...
  • SPACELINKS
  • Space Links ( nl )
  • Vrienden Cweb
  • INFORMATIE
  • Over Ons...
  • Add Favorite
  • NASA-Funded Scientists Discover Tenth Planet

    These time-lapse images of a newfound planet in our solar system, called 2003UB313, were taken on Oct. 21, 2003, using the Samuel Oschin Telescope at the Palomar Observatory near San Diego, Calif. The planet, circled in white, is seen moving across a fiel

    ( NASA, 29 Jul 2005 )
    [ planeet ] -  3543 maal gelezen.
    A planet larger than Pluto has been discovered in the outlying regions of the solar system. 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. Currently about 97 times further from the sun than the Earth, the planet is the farthest-known object in the solar system, and the third brightest of the Kuiper belt objects.

    "It will be visible with a telescope over the next six months and is currently almost directly overhead in the early-morning eastern sky, in the constellation Cetus," said Brown, who made the discovery with colleagues Chad Trujillo, of the Gemini Observatory in Mauna Kea, Hawaii, and David Rabinowitz, of Yale University, New Haven, Conn., on January 8.

    Brown, Trujillo and Rabinowitz first photographed the new planet with the 48-inch Samuel Oschin Telescope on October 31, 2003. However, the object was so far away that its motion was not detected until they reanalyzed the data in January of this year. In the last seven months, the scientists have been studying the planet to better estimate its size and its motions.

    "It's definitely bigger than Pluto," said Brown, who is a professor of planetary astronomy.

    Scientists can infer the size of a solar system object by its brightness, just as one can infer the size of a faraway light bulb if one knows its wattage. The reflectance of the planet is not yet known. Scientists can not yet 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.

    "Even if it reflected 100 percent of the light reaching it, it would still be as big as Pluto," says Brown. "I'd say it's probably one and a half times the size of Pluto, but we're not sure yet of the final size.

    "We are 100 percent confident that this is the first object bigger than Pluto ever found in the outer solar system," Brown added.

    The size of the planet is limited by observations using NASA's Spitzer Space Telescope, which has already proved its mettle in studying the heat of dim, faint, faraway objects such as the Kuiper-belt bodies. Because Spitzer is unable to detect the new planet, the overall diameter must be less than 2,000 miles, said Brown.

    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.

    The Jet Propulsion Laboratory manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at the Spitzer Science Center at Caltech. Caltech manages JPL for NASA.




    Archive Terug
    Voorgaande PLANEET Nieuwsberichten:
    (20 Jul 2005) Een gedenkwaardige dag voor de ruimtevaart
    (29 Jun 2005) Mars Express radar klaar voor gebruik
    (21 Jun 2005) MISSIE DEEPIMPACT NADERT ZIJN DOEL
    (14 Jun 2005) Rotsplaneet rond ster Gliese 876
    (17 May 2005) New collision looks imminent for B-15A
    (17 May 2005) Een nieuwe botsing met ijsberg B-15A onvermijdelij
    (15 Mar 2005) Europa onder een dikke witte deken
    (22 Feb 2005) Bevroren zee van water ontdekt op Mars
    (16 Feb 2005) Klimaatexpeditie doet nuttig werk voor ijssatellie
    (10 Feb 2005) We kunnen Mars leefbaar maken
    (19 Jan 2005) ESA's Envisat volgt "Botsing van de Eeuw"
    (17 Jan 2005) Opportunity Mars rover vind rotsblok of meteoriet?
    (05 Jan 2005) KOMEET IN ZICHT! (door Carl Koppeschaar )
    (17 Dec 2004) 'Water op Mars belangrijkste ontdekking van 2004'
    (22 Oct 2004) Bloedrode maan te zien op donderdag 28 oktober.
    (16 Sep 2004) KIJK IN HET OOG VAN IVAN de VERSCHIKKELIJKE
    (09 Aug 2004) De Perseďden komen in de nacht van 11 op 12 august
    (29 Jun 2004) Vraag: Hoe lang duurt een omwenteling van Saturnus
    (29 Jun 2004) Satellieten brengen woongebied berggorilla's in ka
    (08 Jun 2004) Marsrover Opportunity krijgt gevaarlijke opdracht.
    (26 May 2004) Een gebeurtenissen die geen mens ooit heeft gezien
    (25 May 2004) Wat hebben we geleerd van de Beagle 2 Marslander.
    (06 May 2004) Door nader onderzoek, twijfel bewijs leven op Mars
    (01 Apr 2004) Massaal protest tegen invasiemacht op Mars.
    (24 Mar 2004) Nog meer sporen van water op Mars.
    (19 Mar 2004) Klein planeetje scheert langs de Aarde

    ISS Streaming Webcam
    NIEUW: 24/7 LIVE STREAM
    SPACE STATION WEBCAM


    ** SPACE.Cweb.NL LinX **
     Nederlands
  • Intermediar André Kuipers
  • Astronieuws
  • Russische Raketten
  • www.kennislink.nl
  • ESA Nederland
  • SterrenKids.NL
  • NOG MEER LINKS
  •  English
  • Brazosport Planet.
  • ISS Fanclub
  • NASA Amerika
  • NASA SpaceFlight

  • MEER LinX (more)


  • ** SPACE.Cweb.NL **
    - RSS NIEUWS FEED -
    RSSRSS2.0 FEED
    ATOM FEED

    Discovery
    Nu ook ruimtevaart en technologie nieuws op Discovery Channel Blog door Jeroen Wouda
    blogs.yourdiscovery.com

    NU OOK SOYUZ TMA-19
    ISS & SHUTTLE BOVEN NL
    Foto's van Ralf Vandebergh
    HTV - ISS (Credits: Ralf Vandebergh)
  • Atlantis boven Nederland
  • Telescoop Foto's STS-118
  • Foto's ISS & Shuttle boven NL
  • Telescoop Foto's STS-117
  • Foto's ISS & Shuttle boven NL

  • ** SPACE.Cweb.NL LinX **
    Radio Amateurs HAM
    Amateur Radio
  • AMSAT Position
  • BAR zendamateurs
  • STATION: PD0RKC (Cor)
  • STATION: PD1RSL (Roel)
  • STATION: PA5RWE(Chris)
  • STATION: PC1L (Leon)
  • STATION: 9K2MD (Maryam)
  • STATION: HS2WAQ (Thai)
  • Amateur Satelliet  (engl)
  • Satelliet Software
  • Luister ISS gesprekken
  • Oudere MIR gesprekken
  • NOG MEER LINKS

  • Nederlandse Federatie

    voor Raketonderzoek
    http://www.nerorockets.org


    SPACE.Cweb.NL
    Portal Version 3.0.1
    As Seen On EarthCam

    eXTReMe Tracker Creative Commons License
    @MEMBER OF PROJECT HONEY POT
    Spam Harvester Protection Network
    provided by Unspam
    Analytical Graphics, Inc.