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Encyclopédie > Système solaire en chiffres V
Paramètres caractérisant la taille et la forme des principaux satellites
(en kilomètres)
Terre Mars Jupiter
Saturne Uranus Neptune
Pluton
Satellite |
Numéro |
Rayon
moyen |
Rayon
équatorial
sub-planète |
Rayon
équatorial
le long
de l'orbite |
Rayon
polaire |
écart
moyen à
l'ellipsoïde |
Sommet
le plus
élevé |
Fosse
la plus
profonde |
Terre
|
Lune |
- |
1 737.4 ± 1 |
idem |
idem |
idem |
2.5 |
7.5 |
5.6 |
Mars
|
Phobos |
I |
11.1 ± 0.15 |
13.4 |
11.2 |
9.2 |
0.5 |
- |
- |
Déimos |
II |
6.2 ± 0.18 |
7.5 |
6.1 |
5.2 |
0.2 |
- |
- |
Jupiter
|
Métis |
XVI |
20 ± 10 |
20 |
- |
20 |
- |
- |
- |
Adrastéia |
XV |
10 ± 10 |
13 |
10 |
8 |
- |
- |
- |
Amalthée |
V |
86.2 ± 3 |
131.0 |
73.0 |
67.0 |
3.2 |
- |
- |
Thébé |
XIV |
50 ± 10 |
55 |
- |
45 |
- |
- |
- |
Io |
I |
1 821.3 ± 0.2 |
1 830.0 ± 0.2 |
1 818.7 ± 0.2 |
1 815.3 ± 0.2 |
1.4 |
5 - 10 |
3 |
Europe |
II |
1 565 ± 8 |
idem |
idem |
idem |
0.5 |
- |
- |
Ganymède |
III |
2 634 ± 10 |
idem |
idem |
idem |
0.6 |
- |
- |
Callisto |
IV |
2 403 ± 5 |
idem |
idem |
idem |
0.6 |
- |
- |
Léda |
XIII |
5 |
- |
- |
- |
- |
- |
- |
Himalia |
VI |
85 ± 10 |
- |
- |
- |
- |
- |
- |
Lysithéa |
X |
12 |
- |
- |
- |
- |
- |
- |
Elara |
VII |
40 ± 10 |
- |
- |
- |
- |
- |
- |
Ananké |
XII |
10 |
- |
- |
- |
- |
- |
- |
Carmé |
XI |
15 |
- |
- |
- |
- |
- |
- |
Pasiphaé |
VIII |
18 |
- |
- |
- |
- |
- |
- |
Sinopé |
IX |
14 |
- |
- |
- |
- |
- |
- |
Saturne
|
Pan |
XVIII |
10 ± 3 |
- |
- |
- |
- |
- |
- |
Atlas |
XV |
16 ± 4 |
18.5 |
17.2 |
13.5 |
- |
- |
- |
Prométhée |
XVI |
50.1 ± 3 |
74.0 |
50.0 |
34.0 |
4.1 |
- |
- |
Pandore |
XVII |
41.9 ± 2 |
55.0 |
44.0 |
31.0 |
1.3 |
- |
- |
Epiméthée |
XI |
59.5 ± 3 |
69.0 |
55.0 |
55.0 |
3.1 |
- |
- |
Janus |
X |
88.8 ± 4 |
97.0 |
95.0 |
77.0 |
4.2 |
- |
- |
Mimas |
I |
198.6 ± 0.6 |
209.1 ± 0.5 |
196.2 ± 0.5 |
191.4 ± 0.5 |
0.6 |
- |
2 |
Encelade |
II |
249.4 ± 0.3 |
256.3 ± 0.3 |
247.3 ± 0.3 |
244.6 ± 0.5 |
0.4 |
- |
1 |
Téthys |
III |
529.8 ± 1.5 |
535.6 ± 1.2 |
528.2 ± 1.2 |
525.8 ± 1.2 |
1.7 |
- |
- |
Télesto |
XIII |
11 ± 4 |
15 ± 2.5 |
12.5 ± 5 |
7.5 ± 2.5 |
- |
- |
- |
Calypso |
XIV |
9.5 ± 4 |
15.0 |
8.0 |
8.0 |
0.6 |
- |
- |
Dioné |
IV |
560 ± 5 |
idem |
idem |
idem |
0.5 |
- |
- |
Hélène |
XII |
16 |
17.5 ± 2.5 |
- |
- |
0.7 |
- |
- |
Rhéa |
V |
764 ± 4 |
idem |
idem |
idem |
- |
- |
- |
Titan |
VI |
2 575 ± 2 |
idem |
idem |
idem |
- |
- |
- |
Hypérion |
VII |
141.5 ± 20 |
180 ± 20 |
140 ± 20 |
112.5 ± 20 |
7.4 |
- |
- |
Japet |
VIII |
718 ± 8 |
idem |
idem |
idem |
6.1 |
12 |
- |
Phoebé |
IX |
110 ± 10 |
115 ± 10 |
110 ± 10 |
105 ± 10 |
2.7 |
- |
- |
Uranus
|
Cordélia |
VI |
13 ± 2 |
- |
- |
- |
- |
- |
- |
Ophélie |
VII |
15 ± 2 |
- |
- |
- |
- |
- |
- |
Bianca |
VIII |
21 ± 3 |
- |
- |
- |
- |
- |
- |
Cressida |
IX |
31 ± 4 |
- |
- |
- |
- |
- |
- |
Desdémone |
X |
27 ± 3 |
- |
- |
- |
- |
- |
- |
Juliette |
XI |
42 ± 5 |
- |
- |
- |
- |
- |
- |
Portia |
XII |
54 ± 6 |
- |
- |
- |
- |
- |
- |
Rosalinde |
XIII |
27 ± 4 |
- |
- |
- |
- |
- |
- |
Belinda |
XIV |
33 ± 4 |
- |
- |
- |
- |
- |
- |
Puck |
XV |
77 ± 5 |
- |
- |
- |
1.9 |
- |
- |
Miranda |
V |
235.8 ± 0.7 |
240.4 ± 0.6 |
234.2 ± 0.9 |
232.9 ± 1.2 |
1.6 |
5 |
8 |
Ariel |
I |
578.9 ± 0.6 |
581.1 ± 0.9 |
577.9 ± 0.6 |
577.7 ± 1.0 |
0.9 |
4 |
4 |
Umbriel |
II |
584.7 ± 2.8 |
idem |
idem |
idem |
2.6 |
- |
6 |
Titania |
III |
788.9 ± 1.8 |
idem |
idem |
idem |
1.3 |
4 |
- |
Obéron |
IV |
761.4 ± 2.6 |
idem |
idem |
idem |
1.5 |
12 |
2 |
Neptune
|
Naïade |
III |
29 ± 6 |
- |
- |
- |
- |
- |
- |
Thalassa |
IV |
40 ± 8 |
- |
- |
- |
- |
- |
- |
Despina |
V |
74 ± 10 |
- |
- |
- |
- |
- |
- |
Galatée |
VI |
79 ± 12 |
- |
- |
- |
- |
- |
- |
Larissa |
VII |
96 ± 7 |
104 |
- |
89 |
2.9 |
6 |
5 |
Protée |
VIII |
208 ± 8 |
218 |
208 |
201 |
7.9 |
18 |
13 |
Triton |
I |
1 352.6 ± 2.4 |
- |
- |
- |
- |
- |
- |
Néréide |
II |
170 ± 25 |
- |
- |
- |
- |
- |
- |
Pluton
|
Charon |
I |
593 ± 13 |
- |
- |
- |
- |
- |
- |
Crédit : IMCCE