Yottagram range
editFollowing is a list of solar system objects more massive than 1021 kilograms (one yottagram [Yg]). Even the least massive of these objects is an approximate sphere.[1] Eris, a new trans-Neptunian object, is larger than Pluto but has an undetermined mass. An estimate is listed. See also List of planetary bodies.
- Photographs of objects are on a black background; artists' impressions are on a grey background.
| Rank | Name | Image | Mass in Yg | Mass in kg | Mass (Vs. Earth) | Type of object |
|---|---|---|---|---|---|---|
| 1 | Sun |  |
1,988,435,000 Yg | (1.988435 × 1030 kg) | 332837 | star |
| 2 | Jupiter |  |
1,899,000 Yg | (1.899 × 1027 kg) | 317.87 | 5th planet |
| 3 | Saturn |  |
568,460 Yg | (5.6846 × 1026 kg) | 95.152 | 6th planet |
| 4 | Neptune |  |
102,430 Yg | (1.0243 × 1026 kg) | 17.145 | 8th planet |
| 5 | Uranus |  |
86,832 Yg | (8.6832 × 1025 kg) | 14.534 | 7th planet |
| 6 | Earth |  |
5,974.2 Yg | (5.9742 × 1024 kg) | 1 | 3rd planet |
| 7 | Venus | 4,868.5 Yg | (4.8685 × 1024 kg) | 0.815 | 2nd planet | |
| 8 | Mars |  |
641.85 Yg | (6.4185 × 1023 kg) | 0.107 | 4th planet |
| 9 | Mercury |  |
330.2 Yg | (3.302 × 1023 kg) | 0.0553 | 1st planet |
| 10 | * Ganymede |  |
148.2 Yg | (1.482 × 1023 kg) | 2.48% | satellite of Jupiter |
| 11 | * Titan |  |
134.5 Yg | (1.345 × 1023 kg) | 2.25% | satellite of Saturn |
| 12 | * Callisto |  |
107.6 Yg | (1.076 × 1023 kg) | 1.8% | satellite of Jupiter |
| 13 | * Io |  |
89.3 Yg | (8.9319 × 1022 kg) | 1.5% | satellite of Jupiter |
| 14 | * Moon |  |
73.5 Yg | (7.3477 × 1022 kg) | 1.23% | satellite of Earth |
| 15 | * Europa |  |
48.0 Yg | (4.80 × 1022 kg) | 0.803% | satellite of Jupiter |
| 16 | * Triton | .jpg) |
21.5 Yg | (2.147 × 1022 kg) | 0.359% | satellite of Neptune |
| 17 | Eris | bgcolor=black | align=right| ~16 Yg | (~1.6 × 1022 kg)[2] | ~0.27% | dwarf planet |
| 18 | Pluto |  |
13.1 Yg | (1.305 ± 0.007 × 1022 kg) | ~0.22% | dwarf planet |
| 19 | (136108) Haumea ("Santa") |
4.2 Yg | (4.2 ± 0.1 × 1021 kg) | ~0.069% | Kuiper belt object | |
| 20 | * Titania |  |
3.5 Yg | (3.526 × 1021 kg) | ~0.059% | satellite of Uranus |
| 21 | * Oberon |  |
3.0 Yg | (3.014 × 1021 kg) | ~0.05% | satellite of Uranus |
| 22 | 90377 Sedna | ~3 Yg | (~3 × 1021 kg) | ~0.05% | TNO | |
| 23 | * Rhea | _from_Voyager_1.jpg) |
2.3 Yg | (2.3166 × 1021 kg) | ~0.039% | satellite of Saturn |
| 24 | 50000 Quaoar | ~2 Yg | (~2 × 1021 kg) | ~0.033% | TNO | |
| 25 | * Iapetus |  |
2.0 Yg | (1.9739 × 1021 kg) | ~0.033% | satellite of Saturn |
| 26 | * Charon | 50px|center | 1.5 Yg | (1.52 ± 0.06 × 1021 kg) | ~0.025% | satellite of Pluto |
| 27 | * Ariel | .jpg) |
1.4 Yg | (1.35 × 1021 kg) | ~0.022% | satellite of Uranus |
| 28 | * Umbriel |  |
1.2 Yg | (1.2 × 1021 kg) | ~0.020% | satellite of Uranus |
| 29 | * Dione |  |
1.1 Yg | (1.096 × 1021 kg) | ~0.018% | satellite of Saturn |
- Leading asterisks (*) mark satellites.
- ^ Astronomical bodies form into rounded shapes (oblate spheroids) when the gravity of their own mass is sufficient to overcome the structural stength of their intrinsic materials and the friction between those materials. This is called gravitational collapse.
- ^ The mass of Eris is a very rough estimate based on a diameter of 2400 kilometers and a composition similar to that of the dwarf planet Pluto (density 2.03 g/cm³).