Appendix

TITAN: SUMMARY OF DYNAMICAL AND PHYSICAL DATA

Radius (surface)

2,575 km

Mass

1.346 x 1023kg = 0.022 mass of Earth

Mean density

1,880 kg/m3

Surface temperature

94 K = –179°C

Surface pressure

1.44 bar

Surface gravity

1.35 m/s2

Escape velocity

2.65 km/s

Bond albedo[1]

0.29

Magnitude (V0)[2]

8.3

Mean distance from Saturn

1.223 million km = 20 Saturn radii

Mean distance from Sun

9.539 AU[3] = 1,427 million km

Orbital period around Saturn

15.945 days

Mean orbital velocity

5.58 km/s

Orbital eccentricity

0.029

Inclination of orbit[4]

0.33°

Obliquity[5]

26.7°

Rotation period

15.945 days

Orbital period around Sun

29.458 years

 

NOTES

[1] The bond albedo is the ratio of total reflected light to total incident light.

[2] V0 is magnitude in visible light at opposition.

[3] AU = astronomical unit. 1 AU = 149,597,870 km, Earth’s mean distance from the Sun.

[4] Relative to Saturn’s equatorial plane.

[5] The inclination of the equator to the orbital plane.