- Additional Information
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Additional Information
Short Description Makemake is a dwarf planet and perhaps the largest Kuiper belt object in the classical population, with a diameter approximately two thirds that of Pluto. Makemake’s extremely low average temperature, about 30 K (−243.2 °C), means its surface is covered with methane, ethane, and possibly nitrogen ices. Like Pluto, Makemake appears red in the visible spectrum, and significantly redder than the surface of Eris (see colour comparison of TNOs). The near-infrared spectrum is marked by the presence of the broad methane (CH4) absorption bands. Makemake - Wikipedia, the free encyclopedia Discovered by Michael E. Brown, Chad Trujillo, David Rabinowitz Discovery date March 31, 2005 Type Dwarf planet AddInfo Cubewano Satellite of Sun Minor planet number 136472 Orbit Prograde Rotation Direct Satellites Has satellites Shape Equilibrium spheroid Apoapsis 10 7 939 700 000 km Periapsis 10 5 760 700 000 km Semi-major axis 10 6 850 200 000 km Distance from Sun 02 45,436 301 au Eccentricity 0.155 86 Orbital period 309.09 year | 112,897 days Orbital speed 01 4.419 km/s Mean anomaly 015° Inclination to the ecliptic 029.00685° Longitude of the ascending node 079.3659° Argument of periapsis 297.240° Diameter/Size 04 1 478 ± 34 km Dimensions (1502±45) × (1430±9) km Flattening 0.05 Mass 1021×4.4 kg Density 01 1.4–3.2 g/cm3 Rotation period 7.771 ± 0.003 hour Albedo Bond 0.81 Temperature mean 02 32–36 K Apparent magnitude 17.0 (opposition) Absolute magnitude −0.3 - Comments
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