S/2015 (136472) 1

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S/2015 (136472) 1
S/2015 (136472) 1 is the only known moon of the dwarf planet Makemake. A preliminary examination of the imagery suggests that S/2015 (136472) 1 has a reflectivity similar to charcoal, making it an extremely dark object. This is somewhat surprising because Makemake is the second-brightest known object in the Kuiper belt. One hypothesis to explain this is that its gravity is not strong enough to prevent bright but volatile ices from being lost to space when it is heated by the distant Sun. S/2015 (136472) 1 - Wikipedia, the free encyclopedia
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Short Description S/2015 (136472) 1 is the only known moon of the dwarf planet Makemake. A preliminary examination of the imagery suggests that S/2015 (136472) 1 has a reflectivity similar to charcoal, making it an extremely dark object. This is somewhat surprising because Makemake is the second-brightest known object in the Kuiper belt. One hypothesis to explain this is that its gravity is not strong enough to prevent bright but volatile ices from being lost to space when it is heated by the distant Sun. S/2015 (136472) 1 - Wikipedia, the free encyclopedia
Discovered by HST/WField Camera 3, Alex Parker, Marc Buie, Will Grundy, Keith Noll
Discovery date April 2015
Type Moon
AddInfo Makemake I
Satellite of Makemake
Minor planet number 136472 Makemake I
Orbit Prograde
Rotation Direct
Apoapsis 05 21 000 km
Periapsis 05 21 000 km
Semi-major axis 05 21 000 km to 300 000 km
Distance from Sun 02 45,436 301 au /1
Orbital period 12.4 days to 660 days
Diameter/Size 03 175 km
Dimensions 175 to 250 km
Albedo geometric 0.1
Apparent magnitude 25.1
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