Mean diameter (km)
|
Satellites of planets
|
Dwarf planet satellites
|
Satellites of SSSBs[1]
|
Non-satellites for comparison
|
Earth
|
Mars
|
Jupiter
|
Saturn
|
Uranus
|
Neptune
|
Pluto
|
Eris
|
6000-7000
|
|
|
|
|
|
|
|
|
|
Mars
|
5000-6000
|
|
|
Ganymede
|
Titan
|
|
|
|
|
|
|
4000-5000
|
|
|
Callisto
|
|
|
|
|
|
|
Mercury
|
3000-4000
|
Moon (Luna)
|
|
Io Europa
|
|
|
|
|
|
|
|
2000-3000
|
|
|
|
|
|
Triton
|
|
|
|
Eris Pluto
|
1000-2000
|
|
|
|
Rhea Iapetus Dione Tethys
|
Titania Oberon Umbriel Ariel
|
|
Charon
|
|
|
(136472) 2005 FY9 (136108) 2003 EL61 90377 Sedna 90482 Orcus 50000 Quaoar
|
500-1000
|
|
|
|
Enceladus
|
|
|
|
|
|
Ceres 20000 Varuna 28978 Ixion 2 Pallas, 4 Vesta many more TNOs
|
250-500
|
|
|
|
Mimas Hyperion
|
Miranda
|
Proteus Nereid
|
|
Dysnomia
|
S/2005 (2003 EL61) 1 S/2005 (79360) 1
|
10 Hygiea 511 Davida 704 Interamnia and many others
|
100-250
|
|
|
Amalthea Himalia Thebe
|
Phoebe Janus Epimetheus
|
Sycorax Puck Portia
|
Larissa Galatea Despina
|
|
|
S/2005 (2003 EL61) 2 many more TNOs
|
many
|
50-100
|
|
|
Elara Pasiphaë
|
Prometheus Pandora
|
Caliban Juliet Belinda Cressida Rosalind Desdemona Bianca
|
Thalassa S/2002 N 1 S/2002 N 4 Naiad
|
Nix[2] Hydra[2]
|
|
Menoetius[3] S/2000 (90) 1 many more TNOs
|
many
|
10-50
|
|
Phobos Deimos
|
Carme Metis Sinope Lysithea Ananke Leda Adrastea
|
Siarnaq Helene Albiorix Atlas Pan Telesto Paaliaq Calypso Ymir Kiviuq Tarvos Ijiraq Erriapo
|
Ophelia Cordelia Setebos Prospero Perdita Mab Stephano Cupid Francisco Ferdinand Margaret Trinculo
|
S/2002 N 2 S/2002 N 3 Psamathe
|
|
|
Linus[4] S/2000 (762) 1 S/2002 (121) 1 Romulus[5] Petit-Prince[6] S/2003 (283) 1 S/2004 (1313) 1 and many TNOs
|
many
|
less than 10
|
|
|
at least 47
|
at least 21
|
|
|
|
|
many
|
many
|