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| note = yes | alt_names = | mp_category = TNO Cubewano〔 | orbit_ref = 〔〔 | epoch = 2011-08-27 0:00UTC (JD ) | semimajor = | perihelion = | aphelion = | eccentricity = | period = 330.74 a () | inclination = 12.0623° | asc_node = 272.493° | arg_peri = 9.02° | mean_anomaly = 331.84° | dimensions = | mass = | albedo = | rotation = 12.097 h 6.04 hr?〔 | magnitude = 20.8 〔 | abs_magnitude = 3.2 〔(A Southern Sky and Galactic Plane Survey for Bright Kuiper Belt Object )〕 3.9 〔 }} is a trans-Neptunian object (TNO) orbiting the Sun near the outer edge of the Kuiper belt. Based on how bright it appears, it is a possible dwarf planet. Its discovery images were taken in 2007, and its absolute magnitude of 4.4 is one of the twenty brightest exhibited by TNOs. Assuming it has a typical albedo, this would make it roughly the same size as Ixion (about 650–800 km diameter). Mike Brown's website lists it as a "highly likely" dwarf planet, but its diameter has never been measured. In "K2 Science Conference" Robert Szabo wrote - . Observations by Brown in 2012, using the W. M. Keck Observatory, suggest that does not have a companion.〔 ((moonless) )〕 , it is about 41.3 AU from the Sun.〔 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「(278361) 2007 JJ43」の詳細全文を読む スポンサード リンク
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