Planet/Moon

Mass (1024) kg

Diameter, km

Density, kg/m3

Rate of rotation, spin period, hrs

Surface energy flow, mW/m2

Heating due to energy flow ΔT oK

Relative magnetic moment/MEarth

[72]

Mean equatorial field (nT)

Reference

Mercury

0.330

4879

5427

1407.6

30 - 50*

0.011

300**

[65] , * [75] , ** [67]

Venus

4.87

12,104

5243

−5832.5

16100

521

0

0

[65]

Earth

5.97

12,756

5514

23.9

81*

32.7

1

31,000**

[65] , * [1] p 27, ** [72]

Moon

0.073

3475

3340

655.7

22 - 31*

0

0

[66] , * [70]

Mars

0.642

6792

3933

24.6

0

0

0

0

[65]

Jupiter

1898

142,984

1326

9.9

33

20,000*

428,000*

[65] , * [72]

Io

0.0893

3644

3530

42.5

2240*

1850**

[66] , * [71] , ** [74]

Europa

0.048

3122

3010

85.2

267*

410**

[66] , * [71] , ** [74]

Ganymede

0.148

5262

1942

171.72

30*

719**

[66] , * [71] , ** [74]

Callisto

0.108

4820

1830

400.5

20*

10**

[66] , * [71] , ** [74]

Titan

0.1345

5152

1881

382.7

74*

0**

[66] , * [71] , ** [74]

Saturn

568

120,536

687

10.7

61.8

600*

22,000*

[65] , * [72]

Uranus

86.8

51,118

1271

−17.2

14.8

50*

23,000*

[65] , * [72]

Neptune

102

49.528

1638

16.1

26.4

25*

14,000*

[65] , * [72]

Pluto

0.0131

2390

1830

−153.3

7.7

?

?

[65]