Planet

Mass (Earth = 1)

Semimajor Orbit Radius (AU)

Eccentricity

Orbit Period (Solar Days)

Rotation Period (Solar Days)

Axial Tilt Angle (˚)

Average Density (Earth = 1)

“Sun”

332,000

25 to 30 days at higher latitudes

0.254

Mercury

0.055

0.39

0.206

88.0

58.6 (3:2 orbital to rotation locking)

0.03

0.98

Venus

0.82

0.72

0.007

224.7

−243.0

2.64

0.95

Earth

1

1.00

0.017

365.26

0.9973

23.45

1.00

Mars

0.11

1.52

0.093

686.9

1.026

25.2

0.71

Jupiter

317.8

5.20

0.048

11.86 tropical years

0.41

3.13

0.241

“Moon orbit about Earth”

0.012

2.567 × 103

0.055

27.32

27.32

5.2 relative to Earth orbit

0.61