Planet

Mercury

Mars

Pluto

Distance from the Sun, million km (a.u.)

57 (0.39)

230 (1.5)

6000 (40)

Solar constant, W⁄m²

4200

590

1

Rotation period, Earth days

58.6

1.03

6.39

Total radiation temperature due to solar radiation, K

630

320

63

Daily experimental temperature T_d∞, K

500 - 700

200 - 300

40

Daily calculated temperature T_d∞, K

630

270

50

Night experimental temperature T_n∞, K

100

150 - 250

-

Night calculated temperature T_n∞, K

150

260

50