 Makemake as seen by the Hubble Space Telescope | |
| Discovery | |
|---|---|
| Discovered by | Michael E. Brown, Chad Trujillo, David Rabinowitz |
| Discovery date | March 31, 2005 |
| Designations | |
Designation | (136472) Makemake |
| 2005 FY9 | |
dwarf planet, plutoid, TNO (cubewano)Cite error: The <ref> tag has too many names (see the help page). | |
| Orbital characteristics[1][2] | |
| Epoch January 28, 1955 (JD 2 435 135.5) | |
| Aphelion | 7,939.7 Gm (53.074 AU) |
| Perihelion | 5,760.8 Gm (38.509 AU) |
| 6,850.3 Gm (45.791 AU) | |
| Eccentricity | 0.159 |
| 113,183 d (309.88 a) | |
Average orbital speed | 4.419 km/s |
| 85.13° | |
| Inclination | 28.96° |
| 79.382° | |
| 298.41° | |
| Physical characteristics | |
| Dimensions | 1,300–1,900 km |
Mean radius | 750+200 −100 km[3] |
| ~7,000,000 km² | |
| Volume | ~1.8 × 109 km³ |
| Mass | ~4 × 1021 kg |
Mean density | ~2 g/cm³ (assumed) |
| ~0.47 m/s² | |
| ~0.84 km/s | |
| unknown | |
| unknown | |
| Albedo | 78.2+10.3 −8.6 (geometric)[3] |
| Temperature | 30–35 K [d](assuming the same albedo) |
| 16.7 (opposition)[4][5] | |
| -0.48[2] | |
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