Name

Visible Magnitude in opposition

Distance to Sun or planet centre
(10
3 km)

Radius
(km)

Mass
(kg)

Density
(g/cm
3)

Escape Velocity (km/s)

Visual Geometric Albedo

 

Sun

-26.8

0

695 000

1.989 x 1030

1.410

618.02

-

 

Mercury

-1.9

57 910

2439.7

3.303 x 1023

5.42

4.2507

0.10

 

Venus

-4.4

108 200

6051.8

4.869 x 1024

5.25

10.362

0.65

 

Earth

-

149 600

6378.14

5.976 x 1024

5.515

11.182

0.37

Moon

-12.74

384.4

1737.4

7.349 x 1022

3.34

2.3760

0.12

 

Mars

-2.01

227 940

3397.2

6.421 x 1023

3.94

5.0225

0.15

Phobos

11.3

9.380

13.5x10.8x9.4

1.08 x 1016

2.0

0.0103

0.06

Deimos

12.40

23.46

7.5x6.1x5.5

1.8 x 1015

1.7

0.0057

0.07

 

Jupiter

-2.70

778 330

71 492

1.9 x 1027

1.33

59.556

0.52

Metis

17.5

127.969

20

9.56 x 1016

2.8

0.0253

0.05

Adrastea

19.1

128.971

12.5x10x7.5

1.91 x 1016

4.5

0.0143

0.05

Amalthea

14.1

181.30

135x84x75

7.17 x 1018

1.8

0.0842

0.05

Thebe

15.7

221.895

55x45

7.77 x 1017

1.5

0.0434

0.05

Io

5.02

421.60

1815

8.94 x 1022

3.55

2.5639

0.61

Europa

5.29

670.90

1569

4.8 x 1022

3.01

2.0206

0.64

Ganymede

4.61

1070

2631

1.48 x 1023

1.94

2.7400

0.42

Callisto

5.65

1883

2403

1.08 x 1023

1.86

2.4507

0.19

Leda

20.2

11 094

8

5.68 x 1015

2.7

0.0097

?

Himalia

14.84

11 480

93

9.56 x 1018

2.8

0.1171

0.03

Lysithea

18.4

11 720

18

7.77 x 1016

3.1

0.0240

?

Elara

16.77

11 737

38

7.77 x 1017

3.3

0.0522

0.03

Ananke

18.9

21 200

15

3.82 x 1016

2.7

0.0184

?

Carme

18.0

22 600

20

9.56 x 1016

2.8

0.0253

?

Pasiphae

17.03

23 500

25

1.91 x 1017

2.9

0.0319

?

Sinope

18.3

23 700

18

7.77 x 1016

3.1

0.0240

?

 

Saturn

0.67

1 429 400

60 268

5.688 x 1026

0.69

35.490

0.47

Pan

?

133.583

9.655

?

?

?

0.5

Atlas

18.0

137.64

20x15

?

?

?

0.9

Prometheus

15.8

139.35

72.5x42.5x32.5

2.7 x 1017

0.7*

0.0223

0.6

Pandora

16.5

141.70

57x42x31

2.2 x 1017

0.7*

0.0227

0.9

Epimetheus

15.7

151.422

72x54x49

5.6 x 1017

0.7*

0.0322

0.8

Janus

14.5

151.472

98x96x75

2.01 x 1018

0.67*

0.0523

0.8

Mimas

12.9

185.52

196

3.8 x 1019

1.17

0.1609

0.5

Enceladus

11.7

238.02

250

8.4 x 1019

1.24

0.2118

0.99

Tethys

10.2

294.66

530

7.55 x 1020

1.21

0.4360

0.9

Telesto

18.7

294.66

17x14x13

?

?

?

0.5

Calypso

18.0

294.66

17x11x11

?

?

?

0.6

Dione

10.4

377.4

560

1.05 x 1021

1.43

0.5002

0.7

Helene

18.5

377.40

18x16x15

?

?

?

0.7

Rhea

9.7

527.04

765

2.49 x 1021

1.33

0.6591

0.7

Titan

8.28

1 221.85

2575

1.35 x 1023

1.88

2.6452

0.21

Hyperion

14.19

1 481.0

205x130x110

1.77 x 1019

1.4

0.1073

0.3

Iapetus

10.2-11.9

3 561.3

730

1.88 x 1021

1.21

0.5863

0.2

Phoebe

16.45

12 952

110

4 x 1018

0.7

0.0697

0.06

 

Uranus

5.52

2 870 990

25 559

8.686 x 1025

1.29

21.297

0.51

Cordelia

24.1

49.750

13

?

?

?

0.07

Ophelia

23.8

53.76

16

?

?

?

0.07

Bianca

23.0

59.16

22

?

?

?

0.07

Cressida

22.2

61.77

33

?

?

?

0.07

Desdemona

22.5

62.66

29

?

?

?

0.07

Juliet

21.5

64.36

42

?

?

?

0.07

Portia

21.0

66.10

55

?

?

?

0.07

Rosalind

22.5

69.93

27

?

?

?

0.07

Belinda

22.1

75.26

34

?

?

?

0.07

Puck

20.2

86.01

77

?

?

?

0.07

Miranda

16.3

129.78

235.8

6.33 x 1019

1.15

0.1893

0.27

Ariel

14.16

191.24

578.9

1.27 x 1021

1.56

0.5411

0.34

Umbriel

14.81

265.97

584.7

1.27 x 1021

1.52

0.5384

0.18

Titania

13.73

435.84

788.9

3.49 x 1021

1.70

0.7684

0.27

Oberon

13.94

582.60

761.4

3.03 x 1021

1.64

0.7288

0.24

 

Neptune

7.84

4 504 300

24 746

1.024 x 1026

1.64

23.500

0.41

Naiad

24.7

48.00

29

?

?

?

0.06

Thalassa

23.8

50.00

40

?

?

?

0.06

Despina

22.6

52.50

74

?

?

?

0.06

Galatea

22.3

62.00

79

?

?

?

0.06

Larissa

22.0

73.60

104x89

?

?

?

0.06

Proteus

20.3

117.60

200

?

?

?

0.06

Triton

13.47

354.80

1350

2.14 x 1022

2.07

1.4545

0.7

Nereid

18.7

5 513.40

170

?

?

?

0.14

 

Pluto

15.12

5 913 520

1137

1.27 x 1022

2.05

1.2183

0.3

Charon

16.8

19.64

586

1.90 x 1021

1.83

0.6099

0.5

Please contact our Webmaster with questions or comments. © 1991-2005 Dr Vincent Kotwicki.
All rights reserved. Designed by
k26 Studios