Largest Solar System Objects by Type

Size written is diameter in kilometers.
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otts
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Last updated: October 4, 2025
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First submittedOctober 4, 2025
Times taken23
Average score50.9%
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Inner Main-Belt Asteroids
525
4 Vesta
211
19 Fortuna
199
7 Iris
195
6 Hebe
173
9 Metis
147
8 Flora
143
11 Parthenope
140
18 Melpomene
138
51 Nemausa
136
20 Massalia
 
 
Moons of Jupiter
5268
Ganymede
4821
Callisto
3643
Io
3122
Europa
167
Amalthea
140
Himalia
99
Thebe
80
Elara
58
Pasiphae
47
Carme
 
 
Star + Inner Moons
1.39 M
Sun
3475
Moon
22
Phobos
13
Deimos
Middle Main-Belt Asteroids
939
1 Ceres
511
2 Pallas
270
15 Eunomia
254
3 Juno
227
324 Bamberga
218
88 Thisbe
204
29 Amphitrite
202
13 Egeria
188
45 Eugenia
187
41 Daphne
 
 
Moons of Saturn
5149
Titan
1528
Rhea
1469
Iapetus
1123
Dione
1062
Tethys
504
Enceladus
396
Mimas
270
Hyperion
213
Phoebe
179
Janus
 
 
Planets
139,822
Jupiter
116,464
Saturn
50,724
Uranus
49,244
Neptune
12,742
Earth
12,104
Venus
6,779
Mars
4,879
Mercury
Outer Main-Belt Asteroids
433
10 Hygiea
332
704 Interamnia
319
52 Europa
298
511 Davida
271
87 Sylvia
268
31 Euphrosyne
263
65 Cybele
254
451 Patientia
254
107 Camilla
223
16 Psyche
 
 
Moons of Uranus
1577
Titania
1523
Oberon
1169
Umbriel
1158
Ariel
472
Miranda
162
Puck
157
Sycorax
135
Portia
94
Juliet
90
Belinda
 
 
Kuiper Belt Objects
2377
Pluto
1596
Haumea
1430
Makemake
1212
Charon
1090
Quaoar
910
Orcus
838
Salacia
796
Máni
772
Achlys
768
Aya
Jupiter Trojans
225
624 Hektor
140
617 Patroclus
131
911 Agamemnon
130
588 Achilles
126
3451 Mentor
119
3317 Paris
118
1867 Deiphobus
118
1172 Äneas
118
1437 Diomedes
115
1143 Odysseus
 
 
Moons of Neptune
2705
Triton
420
Proteus
357
Nereid
194
Larissa
175
Galatea
156
Despina
81
Thalassa
62
Halimede
60
Naiad
60
Neso
 
 
Other TNOs
2326
Eris
1230
Gonggong
906
Sedna
750
2010 JO179
742
Chiminigagua
700
2017 OF201
644
Rumina
642
Gǃkúnǁʼhòmdímà
635
2014 UZ224
619
2008 OG19
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