which planet has most moons?

Answer 1

Mercury: 0
Venus: 0
Earth: 1
Mars: 2
Jupiter: 63
Saturn: 56
Uranus: 27
Neptune: 13

Total: 162 planetary moons,

There are, in addition, some 80 known moons of minor planets and asteroids, including Pluto which has 3 (Charon, Hydra and Nyx) and Eris which has 1 (Dysnomia) and the asteroid 87 Sylvia which has 2 (Romulus and Remus).

With their orbital periods, the 162 are as follows (In order outwards from the planet):

EARTH

1. Luna 27 days 7 hours 43.1 min

MARS

1. Phobos 7.66 hours
2. Deimos 30.35 hours

JUPITER

1 Metis 7h 4m 29s
2 Adrastea 7h 9m 30s
3 Amalthea 11h 57m 22.67s
4 Thebe 16h 11m 17s
5 Io 1.77 days
6 Europa 3.55 days
7 Ganymede 7.15 days
8 Callisto 16.69 days
9 Themisto 129.87 days
10 Leda 241.75 days
11 Himalia 250.37 days
12 Lysithea 259.89 days
13 Elara 261.14 days
14 S/2000 J 11 287.93 days
15 Carpo 458.62 days
16 S/2003 J 12 482.69 days
17 Euporie 538.78 days
18 S/2003 J 3 561.52 days
19 S/2003 J 18 569.73 days
20 Thelxinoe 597.61 days
21 Euanthe 598.09 days
22 Helike 601.40 days
23 Orthosie 602.62 days
24 Iocaste 609.43 days
25 S/2003 J 16 610.36 days
26 Praxidike 613.90 days
27 Harpalyke 624.54 days
28 Mneme 627.48 days
29 Hermippe 629.81 days
30 Thyone 639.80 days
31 Ananke 642.02 days
32 S/2003 J 17 672.75 days
33 Aitne 679.64 days
34 Kale 685.32 days
35 Taygete 686.67 days
36 S/2003 J 19 699.12 days
37 Chaldene 699.33 days
38 S/2003 J 15 699.68 days
39 S/2003 J 10 700.13 days
40 S/2003 J 23 700.54 days
41 Erinome 711.96 days
42 Aoede 714.66 days
43 Kallichore 717.81 days
44 Kalyke 721.02 days
45 Carme 721.82 days
46 Callirrhoe 722.62 days
47 Eurydome 723.36 days
48 Pasithee 726.93 days
49 Cyllene 731.10 days
50 Eukelade 735.20 days
51 S/2003 J 4 739.29 days
52 Pasiphaë 741.09 days
53 Hegemone 745.50 days
54 Arche 746.19 days
55 Isonoe 750.13 days
56 S/2003 J 9 752.84 days
57 S/2003 J 5 758.34 days
58 Sinope 762.33 days
59 Sponde 771.60 days
60 Autonoe 772.17 days
61 S/2003 J 14 776.02 days
62 Megaclite 792.44 days
63 S/2003 J 2 1077.02 days

SATURN

1 Pan 0.57505 days
2 Daphnis 0.59408 days
3 Atlas 0.60169 days
4 Prometheus 0.61299 days
5 Pandora 0.62850 days
6 Epimetheus 0.69433 days
7 Janus 0.69466 days
8 Mimas 0.942422 days
9 Methone 1.00957 days
10 Pallene 1.15375 days
11 Enceladus 1.370218 days
12 Tethys 1.887802 days
13 Telesto leading Tethys trojan (in same orbit)
14 Calypso trailing Tethys trojan (in same orbit)
15 Dione 2.736915 days
16 Helene leading Dione trojan (in same orbit)
17 Polydeuces trailing Dione trojan (in same orbit)
18 Rhea 4.518212 days
19 Titan 15.94542 days
20 Hyperion 21.27661 days
21 Iapetus 79.3215 days
22 Kiviuq 448.16 days
23 Ijiraq 451.77 days
24 Phoebe 545.09 days
25 Paaliaq 692.98 days
26 Skathi 732.52 days
27 Albiorix 774.58 days
28 S/2004 S 11 838.77 days
29 Erriapo 844.89 days
30 S/2006 S 8 862.37 days
31 Siarnaq 884.88 days
32 S/2004 S 13 905.85 days
33 S/2006 S 4 906.56 days
34 S/2004 S 19 914.29 days
35 S/2006 S 6 943.78 days
36 Tarvos 944.23 days
37 Mundilfari 956.70 days
38 S/2006 S 1 972.41 days
39 S/2004 S 17 985.45 days
40 S/2004 S 15 985.83 days
41 Narvi 1008.45 days
42 Suttungr 1022.82 days
43 S/2004 S 14 1033.05 days
44 S/2004 S 12 1048.54 days
45 S/2004 S 9 1054.78 days
46 Thrymr 1078.09 days
47 S/2004 S 10 1094.46 days
48 S/2004 S 18 1101.45 days
49 S/2004 S 7 1101.99 days
50 S/2006 S 3 1142.37 days
51 S/2004 S 16 1212.53 days
52 S/2006 S 7 1242.36 days
53 S/2006 S 2 1245.06 days
54 Ymir 1254.15 days
55 S/2006 S 5 1300.95 days
56 S/2004 S 8 1432.16 days

URANUS

1 Cordelia 0.335034 days
2 Ophelia 0.376400 days
3 Bianca 0.434579 days
4 Cressida 0.463570 days
5 Desdemona 0.473650 days
6 Juliet 0.493065 days
7 Portia 0.513196 days
8 Rosalind 0.558460 days
9 Cupid 0.618 days
10 Belinda 0.623527 days
11 Perdita 0.638 days
12 Puck 0.761833 days
13 Mab 0.923 days
14 Miranda 1.413479 days
15 Ariel 2.520379 days
16 Umbriel 4.144177 days
17 Titania 8.705872 days
18 Oberon 13.463239 days
19 Francisco 267.12 days
20 Caliban 579.39 days
21 Stephano 677.48 days
22 Trinculo 748.83 days
23 Sycorax 1285.62 days
24 Margaret 1654.32 days
25 Prospero 1962.95 days
26 Setebos 2196.35 days
27 Ferdinand 2805.51 days

NEPTUNE

1 Naiad 0.294 days
2 Thalassa 0.311 days
3 Despina 0.335 days
4 Galatea 0.429 days
5 Larissa 0.555 days
6 Proteus 1.122 days
7 Triton 5.877 days
8 Nereid 360.14 days
9 S/2002 N 1 1879.71 days
10 S/2002 N 22914.07 days
11 S/2002 N 3 3167.85 days
12 Psamathe 9115.91 days
13 S/2002 N 4 9373.99 days

And that (for the moment at least) is your lot!

Source(s):

http://en.wikipedia.org/wiki/moon...
http://en.wikipedia.org/wiki/mars%27_nat...
http://en.wikipedia.org/wiki/jupiter%27s...
http://en.wikipedia.org/wiki/saturn%27s_...
http://en.wikipedia.org/wiki/uranus%27_n...
http://en.wikipedia.org/wiki/neptune%27s...

Answer 2

Jupiter - 60 Moons
year
discovered discoverer distance from
planet (km) diameter
(km) orbital period
(days)
Adrastea 1979 Jewitt &
Danielson 128,980 26 X 16 0.298
Amalthea 1892 E. Barnard 181,300 262 X 134 0.498
Ananke 1951 S. Nicholson 21,200,000 20 631
Callisto 1610 Galileo 1,883,000 4,800 16.689
Carme 1938 S. Nicholson 22,600,000 30 692
Callirrhoe 2000 Spacewatch Project
Minor Planet Center 24,200,000 10 774
Chaldene 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 23,179,000 3.8 741
Elara 1905 C. Perrine 11,737,000 80 259.65
Erinome 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 23,279,000 3.2 672
Europa 1610 Galileo 670,900 3126 3.551
Ganymede 1610 Galileo 1,070,000 5276 7.155
Harpalyke 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 21,105,000 4.3 595
Himalia 1904 C. Perrine 11,480,000 170 250.57
Io 1610 Galileo 421,600 3,629 1.769
Iocaste 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 21,269,000 5.2 657
Isonone 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 23,217,000 3.8 712
Kalyke 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 23,583,000 5.2 760
Leda 1974 C. Kowal 11,094,000 10 238.72
Lysithea 1938 S. Nicholson 11,720,000 24 259.22
Magaclite 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 23,806,000 5.4 771
Metis 1979 S. Sunnott 127,960 40 0.295
Pasiphae 1908 P. Melotte 23,500,000 36 735
Praxidike 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 21,147,000 6.8 632
S/2000 J11 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 12,555,000 4.0 284.3
S/2001 J1 2001 S. Sheppard, D. Jewitt, & J. Kleyna 24,122,000 4 753
S/2001 J2 2001 S. Sheppard, D. Jewitt, & J. Kleyna 21,312,000 4 615
S/2001 J3 2001 S. Sheppard, D. Jewitt, & J. Kleyna 21,252,000 4 630
S/2001 J4 2001 S. Sheppard, D. Jewitt, & J. Kleyna 23,219,000 3 713
S/2001 J5 2001 S. Sheppard, D. Jewitt, & J. Kleyna 23,808,000 2 732
S/2001 J6 2001 S. Sheppard, D. Jewitt, & J. Kleyna 23,029,000 2 715
S/2001 J7 2001 S. Sheppard, D. Jewitt, & J. Kleyna 21,017,000 3 622
S/2001 J8 2001 S. Sheppard, D. Jewitt, & J. Kleyna 23,124,000 2 609
S/2001 J9 2001 S. Sheppard, D. Jewitt, & J. Kleyna 21,168,000 2 617
S/2001 J10 2001 S. Sheppard, D. Jewitt, & J. Kleyna 19,394,000 2 534
S/2001 J11 2001 S. Sheppard, D. Jewitt, & J. Kleyna 23,547,000 3 736
S/2002 J1 2002 S. Sheppard 23,064,000 3 715.6
S/2003 J1 2003 S. Sheppard, D. Jewitt, & J. Kleyna 24,557,295 4 237.0
S/2003 J2 2003 S. Sheppard, D. Jewitt, & J. Kleyna 28,570,410 2 982.5
S/2003 J3 2003 S. Sheppard, D. Jewitt, & J. Kleyna 18,339,885 2 504.0
S/2003 J4 2003 S. Sheppard, D. Jewitt, & J. Kleyna 23,257,920 2 723.2
S/2003 J5 2003 S. Sheppard, D. Jewitt, & J. Kleyna 24,084,180 4 759.7
S/2003 J6 2003 S. Sheppard, D. Jewitt, & J. Kleyna 10,972,830 4 233.8
S/2003 J7 2003 S. Sheppard, D. Jewitt, & J. Kleyna 23,807,655 4 748.8
S/2003 J8 2003 S. Sheppard, D. Jewitt, & J. Kleyna 24,514,095 3 781.6
S/2003 J9 2003 S. Sheppard, D. Jewitt, & J. Kleyna 22,441,680 1 683.0
S/2003 J10 2003 S. Sheppard, D. Jewitt, & J. Kleyna 24,249,600 2 767.0
S/2003 J11 2003 S. Sheppard, D. Jewitt, & J. Kleyna 22,395,390 2 683.0
S/2003 J12 2003 S. Sheppard, D. Jewitt, & J. Kleyna 19,002,480 1 533.3
S/2003 J13 2003 S. Sheppard, D. Jewitt, & J. Kleyna 24,000,000 2 737.8
S/2003 J14 2003 S. Sheppard, D. Jewitt, & J. Kleyna 25,000,000 2 807.8
S/2003 J15 2003 S. Sheppard, D. Jewitt, & J. Kleyna 22,000,000 2 668.4
S/2003 J16 2003 S. Sheppard, D. Jewitt, & J. Kleyna 21,000,000 2 595.4
S/2003 J17 2003 S. Sheppard, D. Jewitt, & J. Kleyna 22,000,000 2 690.3
S/2003 J18 2003 S. Sheppard, D. Jewitt, & J. Kleyna 20,700,000 2 606.3
S/2003 J19 2003 S. Sheppard, D. Jewitt, & J. Kleyna 22,800,000 2 701.3
S/2003 J20 2003 S. Sheppard, D. Jewitt, & J. Kleyna 17,100,000 3 456.5
Sinope 1914 S. Nicholson 23,700,700 28 758
Taygete 2000 S. Sheppard, D. Jewitt, Y. Fernandez, & G. Magnier 23,360,000 5.0 687
Thebe 1979 S. Synnott 221,900 100 0.675
Themisto 1975 C. Kowal & E. Roemer 7,507,000 8 130.07

Answer 3

Don't start asking that or those IAU people will start having meetings to decide when is a moon not a moon.

Some of the moons they are finding now are just tiny. If anything orbiting a planet is a moon, EARTH has the most with it hundreds of man-made satellites and bits of space junk. If man made stuff doesn't count, there have to be more particles in SATURN's rings than the others can ever compete with.

Earth also has the largest moon when compared to the size of the planet it orbits.

Answer 4

Jupiter It has 14 moons.

Answer 5

Jupiter

Answer 6

Jupiter.

Answer 7

Jupiter has loads - about 60, I think (that we're aware of, there may be more)

Answer 8

Saturn - 23 moons !!!

Answer 9

Depends what you want to class as a moon.

Saturn has a gazillion bits of rock in its rings.

Answer 10

If we all bend can bend over, then earth will have the most moons.