Type Average density Average temperature Average surface gravity Lowest Highest Lowest Highest Lowest Highest Star 1.4 g/cm3 Sun [7][8] 5778 K Sun [9][10] 274 m/s2 Sun [11] Major planet 0.7 g/cm3 Saturn [12][13] 5.51 g/cm3 Earth [14][15] 73 K Neptune [16][17][18] 733 K Venus [19] 3.70 m/s2 Mercury [18] 23.1 m/s2 Jupiter [18] Dwarf planet 2 g/cm3 Pluto 3 g/cm3 Haumea 30 K Makemake 167 K Ceres 0.27 m/s2 Ceres 0.8 m/s2 Eris Major moon of major or dwarf planet [NB 1] 0.98 g/cm3 Tethys 3.53 g/cm3 Io [14][21] 38 K Triton [22] 250 K Moon [23] 0.064 m/s2 Mimas 1.796 m/s2 Io