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Jupiter ♃ 139 822 km |
Saturn ♄ 116 464 km |
Uranus ♅ 50 724 km |
Neptune ♆ 49 244 km |
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Earth ♁ 12 742 km |
Venus ♀ 12 104 km |
Mars ♂ 6 779 km |
Mercury ☿ 4 879 km |
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Ganymed (♃) 5 268 km |
Titan (♄) 5 152 km |
Callisto (♃) 4 821 km |
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Io (♃) 3 643 km |
Luna (♁) 3 474 km |
Europa (♃) 3 122 km |
Triton (♆) 2 707 km |
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Pluto ♇ 2 374 km |
Eris 2 326 km |
Haumea 2 100 × 1 680 × 1 074 km |
Makemake 1 430 km |
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Charon (♇) 1 212 km |
Gonggong 1 210 km |
Quaoar 1 120 km |
Sedna ~ 1 000 km |
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Ceres ⚳ 946 km |
Orcus ~ 900 km |
Salacia ~ 850 km |
2002 MS4 ~ 800 km |
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Titania (♅) 1 577 km |
Rhea (♄) 1 528 km |
Oberon (♅) 1 523 km |
Iapetus (♄) 1 469 km |
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Umbriel (♅) 1 169 km |
Ariel (♅) 1 158 km |
Dione (♄) 1 123 km |
Tethys (♄) 1 062 km |
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Enceladus (♄) 504 km |
Miranda (♅) 472 km |
Mimas (♄) 396 km |
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Varda ~ 700 km |
Varuna ~ 700 km |
Ixion ~ 700 km |
Dysnomia (Eris) ~ 700 km |
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2002 AW197 ~ 700 km |
2003 AZ84 ~ 700 km |
2013 FY27 ~ 700 km |
2004 GV9 ~ 700 km |
& |
more than 200 known trans-Neptunians bigger than 400 km |
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Vesta ⚶ 573 × 557 × 446 km |
Pallas ⚴ 550 × 516 × 476 km |
Hygiea ⚕ 530 × 407 × 370 km |
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Proteus (♆) 424 × 390 × 396 km |
Nereid (♆) ~ 340 km |
Hyperion (♄) 360 × 266 × 205 km |
Phoebe (♄) 219 × 217 × 204 km |
& |
Vanth, Ilmarë, Hi'iaka, Actaea |
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Interamnia ~ 330 km |
Europa ~ 320 km |
Davida ~ 300 km |
Sylvia ~ 280 km |
Eunomia ~ 270 km |
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Euphrosyne ~ 270 km |
Juno ~ 250 km |
Cybele ~ 240 km |
Bamberga ~ 230 km |
Psyche ~ 220 km |
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Thisbe ~ 220 km |
Doris ~ 220 km |
Fortuna ~ 210 km |
Themis ~ 210 km |
Amphitrite ~ 200 km |
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Egeria ~ 200 km |
Iris ~ 200 km |
Elektra ~ 200 km |
Hebe ~ 200 km |
Eugenia ~ 190 km |
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Kleopatra 270 × 90 × 80 km |
& |
Patientia, Herculina, Camilla, Ursula, Hermione, Aurora, Daphne, Bertha, Aegle, Palma, Metis, Alauda, Hilda, ... |
+ roughly 200 Main belt asteroids bigger than 100 km |
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Chariklo 296 × 264 × 204 km |
Chiron ~ 200 km |
Bienor ~ 200 km |
Pholus ~ 310 × 150 km |
& |
2002 GZ32, 2014 NW65, Echeclus, Amycus, Hylonome, Asbolus, Cyllarus, Crantor, Nessus, Elatus, Hidalgo, Okyrhoe |
+ around 40 known centaurs bigger than 20 km |
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Larissa (♆) 216 × 204 × 168 km |
Janus (♄) 203 × 185 × 153 km |
Amalthea (♃) 250 × 146 × 128 km |
Puck (♅) ~ 160 km |
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Epimetheus (♄) 130 × 114 × 106 km |
Thebe (♃) 116 × 98 × 84 km |
Prometheus (♄) 136 × 79 × 59 km |
Pandora (♄) 104 × 81 × 64 km |
& |
S2015Makemake1, Galatea, Himalia, Namaka, Weywot, Sycorax, Despina |
Portia, Xiangliu, Juliet, Thalassa, Belinda, Elara, S2005AZ841 |
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Hektor ~ 220 & 180 km |
Agamemnon ~ 190 × 140 km |
Patroclus 127 × 117 × 98 km |
Menoetius 117 × 108 × 90 km |
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Eurybates ~ 64 km |
Orus ~ 51 km |
Leucus ~ 34 km |
Polymele ~ 21 km |
& |
Diomedes, Äneas, Achilles, Deiphobus, Odysseus, Mentor, Paris, Alcathous, Anchises |
Makhaon, Nestor, Antilochus, Priamus, Troilus, Teucer, Automedon, Euforbo |
+ satellites: Skamandrios, S2012Agamemnon1, S2022Polymele1, Queta |
+ roughly 530 Jovian trojans bigger than 20 km |
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Lutetia 121 × 101 × 75 km |
Mathilde 66 × 48 × 46 km |
Ida 60 × 25 × 19 km |
Gaspra 18 × 11 × 9 km |
& |
roughly 2100 Main belt asteroids bigger than 20 km |
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Arrokoth 21×20×9 & 15×14×10 km |
& |
more than 3400 known trans-Neptunians | milions more are estimated to exist |
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Hydra (♇) 65 × 45 × 25 km |
Metis (♃) 60 × 40 × 34 km |
Nix (♇) 54 × 41 × 36 km |
Helene (♄) 43 × 38 × 26 km |
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Atlas (♄) 41 × 35 × 19 km |
Pan (♄) 34 × 31 × 21 km |
Telesto (♄) 33 × 24 × 20 km |
Calypso (♄) 30 × 23 × 14 km |
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Phobos (♂) 27 × 22 × 18 km |
Deimos (♂) 15 × 12 × 11 km |
Kerberos (♇) ~ 19 × 10 km |
Styx (♇) ~ 16 × 9 km |
& |
Cressida, Rosalind, Desdemona, Halimede, Naiad, Neso, Pasiphae, Bianca, Prospero, Setebos, Carme, Sao, Ophelia |
Lysithea, Caliban, Laomedeia, Cordelia, Psamathe, Siarnaq, Sinope, Hippocamp, Stephano, Ananke, Albiorix |
Perdita, Mab, Paaliaq, Francisco, Leda, Ferdinand, Margaret, Cupid, Ymir, Trinculo, Adrastea, Kiviuq |
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Daphnis (♄) 9 × 8 × 6 km |
Pallene (♄) 6 × 4 × 4 km |
Methone (♄) 4 × 3 × 2 km |
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Polydeuces (♄) 3 × 2 × 2 km |
Anthe (♄) ~ 1.8 km |
Aegaeon (♄) 1.4 × 0.5 × 0.4 km |
& |
Tarvos, Ijiraq, Erriapus, Callirrhoe, Themisto, Praxidike, Bestla, Kalyke, ... |
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Šteins 7 × 6 × 4 km |
Annefrank 7 × 5 × 3 km |
Donaldjohanson ~ 4 km |
Braille ~ 2 × 1 km |
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Dactyl (Ida) 1.6 × 1.4 × 1.2 km |
1999 VD57 ~ 0.7 km |
311P/PANSTARRS ~ 0.5 km |
& |
roughly 90 000 Main belt asteroids >5 km | 750 000 >1 km | 25 000 000 >0.1 km |
+ satellites: Petit-Prince, Romulus, Alexhelios, Cleoselene, Remus, S2003Elektra1, S2004Eugenia1, S2019Euphrosyne1, S2014Elektra1, S2014Elektra2, Peneius, ... |
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Halley 15 × 8 × 8 km |
Tempel 1 8 × 5 × 5 km |
Borrelly 8 × 4 × 4 km |
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Wild 2 6 × 4 × 3 km |
Churyumov-Gerasimenko 4×3×2 & 3×2×2 km |
Hartley 2 2 × 1 × 1 km |
& |
almost 400 numbered comets | thousands known comets | probably trillion(s) dormant comets |
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Eros 34 × 11 × 11 km |
1999 JM8 ~ 7 km | Phaethon ~ 6 km |
Florence & °° ~ 4.4 & 0.3 & 0.2 km |
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Toutatis 4.7 × 2.4 × 2 km |
Heracles & ° ~ 3.6 & 0.6 km |
Tantalus ~ 3 km |
1996 FG3 & ° ~ 1.7 & 0.3 km |
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Moshup & Squannit ~ 1.3 & 0.4 km |
2005 UD ~ 1.3 km |
Ryugu 0.9 km |
Didymos 0.8 km |
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2001 CC21 ~ 0.7 km |
Bennu 0.5 km |
Itokawa 0.5 × 0.3 × 0.2 km |
Apophis ~ 0.4 × 0.2 km |
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Dimorphos (Didymos) 0.16 km |
Kamo'oalewa ~ 0.05 km |
2020 PN1 ~ 0.03 km |
1998 KY26 ~ 0.03 km |
& |
roughly 930 Near-Earth asteroids >1 km | 30 000 >0.1 km | probably something in order of billion(s) of meter-sized NEAs |
Year | Object | Class | Group | Spectral type | Size | Spacecraft |
2023 | 1999 VD57 | MBA | S or V | 0.7 km | Lucy (NASA) | |
2025 | Donaldjohanson | MBA | Erigone family | C | 4 km | Lucy (NASA) |
2026 | Kamo'oalewa | quasi-satellite | Apollo | ? | 50 m | ZhengHe (CNSA) |
2026 | 2001 CC21 | NEA | Apollo | L | 0.7 km | Hayabusa2♯ (JAXA) |
2027 | 2020 PN1 | NEA | Aten | ? | 30 m | ADM (CNSA) |
2027 | Eurybates & Queta | Jovian trojan | leading | C | 60 km & 1 km | Lucy (NASA) |
2027 | Polymele & ° | Jovian trojan | leading | P | 20 km & 5 km | Lucy (NASA) |
2028 | Phaethon | NEA | Apollo/active | B | 6 km | DESTINY+ (JAXA) |
2028 | Leucus | Jovian trojan | leading | D | 30 km | Lucy (NASA) |
2028 | Orus | Jovian trojan | leading | D | 50 km | Lucy (NASA) |
2028 | 2005 UD | NEA | Apollo | B/C | 1.3 km | DESTINY+ (JAXA) |
2029 | Psyche | MBA | metallic | M | 230 km | Psyche (NASA) |
2029 | Apophis | NEA | Aten | Sq | 0.4 km | OSIRIS-APEX (NASA) |
2031 | 1998 KY26 | NEA | Apollo | X | 30 m | Hayabusa2♯ (JAXA) |
2033 | Patroclus & Menoetius | Jovian trojan | trailing | P | 113 km & 104 km | Lucy (NASA) |
2034 | 311P/PANSTARRS | MBA | active | ? | 0.5 km | ZhengHe (CNSA) |
2034 | Heracles & ° | NEA | Apollo | O | 3.6 km & 0.6 km | DESTINY+ (JAXA) |
2035 | 289P/Blanpain | comet | short-period | ? | ? | DESTINY+ (JAXA) |
2038 | Tantalus | NEA | Apollo | Q | 3 km | DESTINY+ (JAXA) |