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| alt_names = | adjectives = Makemakean | named_after = Makemake | mp_category = Dwarf planet cubewano〔 scattered-near〔 | orbit_ref = 〔 | epoch = JD 2457000.5 (9 December 2014) | aphelion = 52.840 AU | perihelion = 38.590 AU | semimajor = 45.715 AU | eccentricity = 0.15586 | period = 309.09 yr (112,897 d) | avg_speed = 4.419 km/s | inclination = 29.00685° | asc_node = 79.3659° | arg_peri = 297.240° | mean_anomaly = 156.353° | physical_characteristics = yes | axial_tilt = | sidereal_day = 〔A. N. Heinze and Daniel deLahunta, (The rotation period and light-curve amplitude of Kuiper belt dwarf planet 136472 Makemake () ), ''The Astronomical Journal'' 138 (2009), pp. 428–438. 〕 | dimensions =〔 (ESO 21 November 2012 press release: (Dwarf Planet Makemake Lacks Atmosphere ))〕 }} |mean_radius = | flattening = 0.05 | surface_area = 〔(Surface-area calculation using Wolfram Alpha )〕 | volume = 〔(Volume calculation using Wolfram Alpha )〕 | mass = 2–5 × 1021 kg (''estimated'') | density = 1.4–3.2 g/cm3〔 | surface_grav = | escape_velocity = | albedo = 〔 | single_temperature = 32–36 K (single-terrain model) 40–44 K (two-terrain model)〔 | spectral_type = B−V=0.83, V−R=0.5 | abs_magnitude = 〔 | magnitude = 16.7 (opposition)〔〔 }} Makemake (minor-planet designation 136472 Makemake) is a dwarf planet and perhaps the largest Kuiper belt object (KBO) in the classical population, with a diameter that is about 2/3 the size of Pluto.〔〔 Makemake has no known satellites, which makes it unique among the largest KBOs and means that its mass can only be estimated. Its extremely low average temperature, about , means its surface is covered with methane, ethane, and possibly nitrogen ices.〔 Makemake was discovered on March 31, 2005, by a team led by Michael E. Brown, and announced on July 29, 2005. Initially, it was known as and later given the minor-planet number 136472. Makemake was recognized as a dwarf planet by the International Astronomical Union (IAU) in July 2008.〔 Its name derives from Makemake in the mythology of the Rapa Nui people of Easter Island.〔 ==History== 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「Makemake」の詳細全文を読む スポンサード リンク
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