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Revision as of 01:02, 3 August 2005 editThe Tom (talk | contribs)Administrators21,769 edits rv changes by User:Curps← Previous edit Revision as of 14:01, 3 August 2005 edit undoUrhixidur (talk | contribs)Administrators44,767 editsm minplan2 --> mp; minplan --> mplNext edit →
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'''{{minplan2|2005 FY|9}}''' (also written '''2005 FY9''') is a very large ] discovered on ], ] by the team led by ]. Its discovery was announced on ], ] on the same day as two other very large ]s, {{minplan|2003 EL|61}} and {{minplan|2003 UB|313}}. '''{{mp|2005 FY|9}}''' (also written '''2005 FY9''') is a very large ] discovered on ], ] by the team led by ]. Its discovery was announced on ], ] on the same day as two other very large ]s, {{mpl|2003 EL|61}} and {{mpl|2003 UB|313}}.


The ] {{minplan2|2005 FY|9}} is only provisional. Given the importance of the object and the fact that it has been found on older ]s (]), it may receive a proper name soon. According to the current naming rules of the ], it will be named after a ] or ] ]. The ] {{mp|2005 FY|9}} is only provisional. Given the importance of the object and the fact that it has been found on older ]s (]), it may receive a proper name soon. According to the current naming rules of the ], it will be named after a ] or ] ].


{{minplan2|2005 FY|9}} was detected by the ]. Initial estimates gave a diameter of 50% to 75% that of ]. It is similar in size to {{minplan2|2003 EL|61}}, although slightly brighter. This makes it the largest Kuiper belt object after {{minplan2|2003 UB|313}} and Pluto. ] suggested the term ] be used for planetary objects intermediate in size between ] and ], which would include all four of these objects. {{mp|2005 FY|9}} was detected by the ]. Initial estimates gave a diameter of 50% to 75% that of ]. It is similar in size to {{mp|2003 EL|61}}, although slightly brighter. This makes it the largest Kuiper belt object after {{mp|2003 UB|313}} and Pluto. ] suggested the term ] be used for planetary objects intermediate in size between ] and ], which would include all four of these objects.


It is currently visually the second brightest Kuiper belt object after Pluto having the ] of nearly 17. Therefore it is visible to high-end ] ]s. It is currently visually the second brightest Kuiper belt object after Pluto having the ] of nearly 17. Therefore it is visible to high-end ] ]s.


According to Brown the surface of {{minplan2|2005 FY|9}} is Pluto-like. According to Brown, the surface of {{mp|2005 FY|9}} is Pluto-like.


The object orbits the ] every 308 years. Like Pluto's, its ] is somewhat ] and ]. The object orbits the ] every 308 years. Like Pluto's, its ] is somewhat ] and ].


==External link== ==External link==
* *


{{Footer TransNeptunian}} {{Footer TransNeptunian}}

Revision as of 14:01, 3 August 2005

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The correct title of this article is 2005 FY9. It appears incorrectly here due to technical restrictions.

Template:Minor Planet 2005 FY9 (also written 2005 FY9) is a very large Kuiper belt object discovered on March 31, 2005 by the team led by Michael Brown. Its discovery was announced on July 29, 2005 on the same day as two other very large trans-Neptunian objects, 2003 EL61 and 2003 UB313.

The designation 2005 FY9 is only provisional. Given the importance of the object and the fact that it has been found on older photographs (precovered), it may receive a proper name soon. According to the current naming rules of the International Astronomical Union, it will be named after a creation or underworld deity.

2005 FY9 was detected by the Spitzer space telescope. Initial estimates gave a diameter of 50% to 75% that of Pluto. It is similar in size to 2003 EL61, although slightly brighter. This makes it the largest Kuiper belt object after 2003 UB313 and Pluto. Isaac Asimov suggested the term mesoplanet be used for planetary objects intermediate in size between Mercury and 1 Ceres, which would include all four of these objects.

It is currently visually the second brightest Kuiper belt object after Pluto having the apparent magnitude of nearly 17. Therefore it is visible to high-end amateur telescopes.

According to Brown, the surface of 2005 FY9 is Pluto-like.

The object orbits the Sun every 308 years. Like Pluto's, its orbit is somewhat eccentric and inclined.

External link

Template:Footer TransNeptunian

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