Encyclopedia of the Solar System 2nd ed

TABLE

4

Physical and Orbital Properties of the Satellites of the Planets and Dwarf Planets

Semimajor

Orbital

Orbital Inclination

Orbital Period

Mean Radius

Density

Year of

Discovered

Name

Axis 10

3

km

Eccentricity

degrees

days

Km

Mass (10

23

g)

g cm

−

3

Discovery

By

EarthMoon

384.40

0.0554

5.16

27.3216

1,737.5

734.9

3.34

—

—

MarsPhobos

9.38

0.0151

1.08

0.319

13

×

11

×

9.2

0.000106

1.87

1877

Hall

Deimos

23.46

0.0002

1.79

1.262

7.5

×

6.1

×

5.2

0.000024

1.47

1877

Hall

JupiterJ16 Metis

128.0

0.0012

0.02

0.295

20

—

—

1979

Voyager 1/2

J15 Adrastea

129.0

0.0018

0.05

0.298

10

—

—

1979

Voyager 1/2

J5 Amalthea

181.4

0.0031

0.39

0.498

131

×

73

×

67

0.15

—

1892

Barnard

J14 Thebe

221.9

0.0177

1.07

0.675

50

—

—

1979

Voyager 1/2

J1 Io

421.8

0.0041

0.04

1.769

1,821.6

893.2

3.53

1610

Galileo

J2 Europa

671.1

0.0094

0.47

3.551

1,560.8

480.0

3.01

1610

Galileo

J3 Ganymede

1,070.4

0.0011

0.17

7.155

2,631.2

1481.9

1.94

1610

Galileo

J4 Callisto

1,882.7

0.0074

0.19

16.69

2,410.3

1075.9

1.83

1610

Galileo

J13 Leda

11,165

0.1636

27.46

240.92

10

—

—

1974

Kowal

J6 Himalia

11,461

0.1623

27.50

250.56

85

—

—

1904

Perrine

J10 Lysithea

11,717

0.1124

28.30

259.20

18

—

—

1938

Nicholson

J7 Elara

11,741

0.2174

26.63

259.64

43

—

—

1904

Perrine

J12 Ananke

21,276

0.2435

148.89

629.77

10

—

—

1951

Nicholson

J11 Carme

23,404

0.2533

164.91

734.17

23

—

—

1938

Nicholson

J8 Pasiphae

23,624

0.4090

151.43

743.63

30

—

—

1908

Melotte

J9 Sinope

23,939

0.2495

158.11

758.90

19

—

—

1914

Nicholson

J17 Callirrhoe

24,103

0.2828

152.76

758.77

4.3

—

—

1999

Scotti et al.

J18 Themisto

7,284

0.2426

43.26

130.02

4.0

—

—

2000

Sheppard et al.

J19 Megaclite

23,493

0.4197

152.77

752.88

2.7

—

—

2000

Sheppard et al.

J20 Taygete

23,280

0.2525

165.27

732.41

2.5

—

—

2000

Sheppard et al.

J21 Chaldene

23,100

0.2519

165.19

723.70

1.9

—

—

2000

Sheppard et al.

J22 Harpalyke

20,858

0.2268

148.64

623.31

2.2

—

—

2000

Sheppard et al.

J23 Kalyke

23,566

0.2465

165.16

742.03

2.6

—

—

2000

Sheppard et al.

J24 Iocaste

21,061

0.2160

149.43

631.60

2.6

—

—

2000

Sheppard et al.

J25 Erinome

23,196

0.2665

164.93

728.51

1.6

—

—

2000

Sheppard et al.

J26 Isonoe

23,155

0.2471

165.27

726.25

1.9

—

—

2000

Sheppard et al.

J27 Praxidike

20,907

0.2308

148.97

625.38

3.4

—

—

2000

Sheppard et al.

J28 Autonoe

24,046

0.3168

152.42

760.95

2.0

—

—

2001

Sheppard et al.

J29 Thyone

20,939

0.2286

148.51

627.21

2.0

—

—

2001

Sheppard et al.

J30 Hermippe

21,131

0.2096

150.72

633.90

2.0

—

—

2001

Sheppard et al.

J31 Aitne

23,229

0.2643

165.09

730.18

1.5

—

—

2001

Sheppard et al.

J32 Eurydome

22,865

0.2759

150.27

717.33

1.5

—

—

2001

Sheppard et al.

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