Planets Facts and Figures

Jupiter Facts and Figures

Equatorial radius
71,490 km

Equatorial inclination
3.13°

Mass
1.90×1027 kg

Average density
1.3 g/cm3

Rotational period
0.414 days

Orbital period
11.86 years

Average distance from the Sun
778.4 million km

Perihelion
740.3 million km

Aphelion
816.4 million km

Orbital eccentricity
0.0489

Orbital inclination
1.30°

Moons
39

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.



Earth Facts and Figures

Equatorial radius
6,378 km

Equatorial inclination
23.5°

Mass
5.97×1024 kg

Average density
5.5 g/cm3

Rotational period
0.997 days

Orbital period
1 year

Average distance from the Sun
149.6 million km

Perihelion
147.1 million km

Aphelion
152.1 million km

Orbital eccentricity
0.0167

Orbital inclination
0.0003°

Moons
1

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.


Mars Facts and Figures

Equatorial radius
3,396 km

Equatorial inclination
25.2°

Mass
6.42×1023 kg

Average density
3.9 g/cm3

Rotational period
1.03 days

Orbital period
1.881 years

Average distance from the Sun
228 million km

Perihelion
206.7 million km

Aphelion
249.3 million km

Orbital eccentricity
0.0935

Orbital inclination
1.85°

Moons
2

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.


Neptune Facts and Figures

Equatorial radius
24,760 km

Equatorial inclination
28.3°

Mass
1.02×1026 kg

Average density
1.6 g/cm3

Rotational period
0.671 days

Orbital period
164.8 years

Average distance from the Sun
4.488 billion kilometers

Perihelion
4.440 billion kilometers

Aphelion
4.536 billion kilometers

Orbital eccentricity
0.00995

Orbital inclination
1.77°

Moons
8

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.

Mercury Facts and Figures

Equatorial radius
2,440 km

Equatorial inclination
0.01°

Mass
3.30×1023 kg

Average density
5.4 g/cm3

Rotational period
58.6 days

Orbital period
0.2408 years

Average distance from the Sun
57.91 million km

Perihelion
46 million km

Aphelion
69.82 million km

Orbital eccentricity
0.206

Orbital inclination
7°

Moons
0

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.

Venus Facts and Figures

Equatorial radius
6,052 km

Equatorial inclination
2.64°

Mass
4.87×1024 kg

Average density
5.2 g/cm3

Rotational period1
-240 days

Orbital period
0.6152 years

Average distance from the Sun
108.2 million km

Perihelion
107.5 million km

Aphelion
108.9 million km

Orbital eccentricity
0.00674

Orbital inclination
3.39°

Moons
0

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.

Footnotes
1A negative rotational period indicates that Venus rotates in the opposite direction from that in which Earth and most of the other planets rotate.

Pluto Facts and Figures

Equatorial radius
1,195 km

Equatorial inclination
57.4°

Mass
1.40×1022 kg

Average density
1.8 g/cm3

Rotational period1
-6.4 days

Orbital period
247.9 years

Average distance from the Sun
5.879 billion kilometers

Perihelion
4.431 billion kilometers

Aphelion
7.327 billion kilometers

Orbital eccentricity
0.248

Orbital inclination
17.2°

Moons
1

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.

Footnotes
1A negative rotational period indicates that Pluto rotates in the opposite direction from that in which Earth and most of the other planets rotate.

Saturn Facts and Figures

Equatorial radius
60,270 km

Equatorial inclination
26.7°

Mass
5.69×1026 kg

Average density
0.69 g/cm3

Rotational period
0.444 days

Orbital period
29.46 years

Average distance from the Sun
1.435 billion kilometers

Perihelion
1.352 billion kilometers

Aphelion
1.517 billion kilometers

Orbital eccentricity
0.0576

Orbital inclination
2.49°

Moons
32

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.








Uranus Facts and Figures

Equatorial radius
25,560 km

Equatorial inclination
82.2°

Mass
8.68×1025 kg

Average density
1.3 g/cm3

Rotational period1
-0.718 days

Orbital period
84.01 years

Average distance from the Sun
2.857 billion kilometers

Perihelion
2.719 billion kilometers

Aphelion
2.996 billion kilometers

Orbital eccentricity
0.0497

Orbital inclination
0.772°

Moons
27

Source
Data are from the U.S. Naval Observatory's annual Astronomical Almanac and various other publications.

Footnotes
1A negative rotational period indicates that Uranus rotates in the opposite direction from that in which Earth and most of the other planets rotate.