Makemake

Makemake
	Makemake an its muin, as seen bi the Hubble Space Telescope
Discovery
Discovered bi	Michael E. Brown; Chad Trujillo; David Rabinowitz;
Discovery date	Mairch 31, 2005
Designations
MPC designation	(136472) Makemake
Named after	Makemake
Alternative names	2005 FY9
Minor planet category	Dwarf planet; cubewano; scattered-near
Adjectives	Makemakean
Orbital chairactereestics
	Epoch JD 2457000.5 (9 December 2014)
Aphelion	52.840 AU
Perihelion	38.590 AU
Semi-major axis	45.715 AU
Eccentricity	0.15586
Orbital period	309.09 yr (112,897 d)
Average orbital speed	4.419 km/s
Mean anomaly	15
Inclination	29.00685°
Longitude o ascendin node	79.3659°
Argument o perihelion	297.240°
Kent satellites	1
Pheesical chairacteristics
Dimensions	(1434+48; −18) × (1420+18; −24 km); (1502±45) × (1430±9) km;
Mean radius	715+19; −11 km; 739±17 km;
Flettenin	0.05
Surface area	(6.9±0.3)×106 km2
Vollum	(1.7±0.1)×109 km3
Mass	< 4.4 × 1021 kg
Mean density	1.4–3.2 g/cm3 <3.05 g/cm3
Sidereal rotation period	7.771±0.003 h
Albedo	0.81+0.03; −0.05
Temperatur	32–36 K (single-terrain model); 40–44 K (twa-terrain model)
Spectral teep	B−V=0.83, V−R=0.5
Apparent magnitude	17.0 (opposeetion)
Absolute magnitude (H)	−0.3

Makemake (meenor-planet designation 136472 Makemake, seembol: )^[11] is a dwarf planet an aiblins the lairgest Kuiper belt object (KBO) in the clessical population,^[a] with a diameter approximately two thirds that of Pluto.^[16]^[17] Makemake haes ane kent satellite, S/2015 (136472) 1.^[18] Makemake’s extremely law average temperatur, aboot 30 K (−243.2 °C), means its surface is covered wi methane, ethane, an possibly nitrogen ices.^[13]

Notes

References

[11]

[a]

[16]

[17]

[18]

[13]

[1]

[2]

[3]

[4]

[b]

[c]

[5]

[6]

[7]

[8]

[9]

[10]

Discovery
Makemake an its muin, as seen bi the Hubble Space Telescope
Discovered bi	Michael E. Brown Chad Trujillo David Rabinowitz
Discovery date	Mairch 31, 2005
Designations
MPC designation	(136472) Makemake
Named after	Makemake
Alternative names	2005 FY₉
Minor planet category	Dwarf planet cubewano^[1] scattered-near^[a]
Adjectives	Makemakean
Orbital chairactereestics^[2]
Epoch JD 2457000.5 (9 December 2014)
Aphelion	52.840 AU
Perihelion	38.590 AU
Semi-major axis	45.715 AU
Eccentricity	0.15586
Orbital period	309.09 yr (112,897 d)
Average orbital speed	4.419 km/s
Mean anomaly	15
Inclination	29.00685°
Longitude o ascendin node	79.3659°
Argument o perihelion	297.240°
Kent satellites	1
Pheesical chairacteristics
Dimensions	(7003143400000000000♠1434+48 −18) × (7003142000000000000♠1420+18 −24 km)^[3] (7003150200000000000♠1502±45) × (7003143000000000000♠1430±9) km^[4]
Mean radius	7005715000000000000♠715+19 −11 km^[3] 7005739000000000000♠739±17 km^[4]
Flettenin	0.05^[b]
Surface area	7012690000000000000♠(6.9±0.3)×10⁶ km²^[c]^[5]
Vollum	7018170000000000000♠(1.7±0.1)×10⁹ km³^[c]^[6]
Mass	< 4.4 × 10²¹ kg
Mean density	1.4–3.2 g/cm³^[3] <3.05 g/cm³
Sidereal rotation period	7004279756000000000♠7.771±0.003 h^[7]
Albedo	6999810000000000000♠0.81+0.03 −0.05^[3]
Temperatur	32–36 K (single-terrain model) 40–44 K (twa-terrain model)^[4]
Spectral teep	B−V=0.83, V−R=0.5^[8]
Apparent magnitude	17.0 (opposeetion)^[9]^[10]
Absolute magnitude (H)	3000700000000000000♠−0.3^[2]