ERES UN INCAPAZ COMO TU COMPAÑERO DE ANDANZAS. Asi te hundas en la ignorancia eterna.
Javier Armentia <javarm@xxxxxxxx> escribió:
En InfoAstro: 2003 UB313: ¿El décimo planeta?
. Imprescindible.
En El Muro de Planck:
¿Número de planetas = 9 + 1? ¿ó 9 - 1?
En Por La Boca Muere El Pez:
Ya Tenemos Planeta X (De Nuevo)
Saludos
javier armentia
Jose Ramón Brox escribió:
>Noticia en:
>
>http://news.bbc.co.uk/1/hi/sci/tech/4730061.stm
>
>(pegada a continuación)
>
>Astronomers in the United States have announced the discovery of the 10th planet to orbit
>our Sun.
>The largest object found in our Solar System since Neptune was discovered in 1846, it was
>first seen in 2003 but has only now been confirmed as a planet.
>
>Designated 2003 UB313, it is about 3,000km across
, a
world of rock and ice and somewhat
>larger than Pluto.
>
>Scientists say it is three times as far away as Pluto, in an orbit at an angle to the
>orbits of the other planets.
>
>
>
>Astronomers think that at some point in its history, Neptune likely flung it into its
>highly-inclined 44-degree orbit.
>
>
>Graphic of 2003 UB313 in relation to other planets and Sun
>It is currently 97 Earth-Sun distances away - more than twice Pluto's average distance
>from the Sun.
>
>Bigger than Pluto
>
>Its discoverers are Michael Brown of Caltech, Chad Trujillo of the Gemini Observatory in
>Hawaii, and David Rabinowitz of Yale University.
>
>
>David Rabinowitz told the BBC News website: "It has been a remarkable day and a remarkable
>year. 2003 UB313 is probably larger than Pluto. It is fainter than Pluto, but three times
>farther
away.
>
>"Brought to the same distance from the Sun as Pluto, it would be brighter. So today, the
>world knows that Pluto is not unique. There are other Plutos, just farther out in the
>Solar System where they are a little harder to find."
>
>It was picked up using the Samuel Oschin Telescope at Palomar Observatory and the 8m
>Gemini North telescope on Mauna Kea.
>
>Slow mover
>
>Chad Trujillo told the BBC News website: "I feel extremely lucky to be part of a discovery
>as exciting as this. It's not every day that you find something Pluto-sized or larger!"
>
>"The spectra that we took at the Gemini Observatory are particularly interesting because
>it shows that the surface of 2003 UB313 is very similar to that of Pluto."
>
>The object was first observed on 21 October 2003, but the team did not see it move in the
>sky until looking at the same area 15 months later
on 8
January 2005.
>
>The researchers say they tried looking for it with the Spitzer Space Telescope, which is
>sensitive to heat radiation, but failed to detect it.
>
>This gives them an upper limit of its size of 3,000 km, they say. The lower limit still
>makes it larger than Pluto.
>
>The discovery of 2003 UB313 comes just after the announcement of the finding of 2003 EL61,
>which appears to be a little smaller than Pluto.
>
>------------------------------------------------------------------------------
>
>Un saludo. Jose Brox
>http://espanol.groups.yahoo.com/group/Telecomunicacion/
>ambroxius@xxxxxxxx
>MSN Messenger: artifex_ad_infinitum2@xxxxxxxxxxx
>
>
>