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Thái Dương hệ gồm 9 hành tinh theo thứ tự từ gần
đến xa đối với mặt trời:
-
Mercure (Mercury
, Sao Thủy),
- Venus (Sao Kim),
- Terre (Earth
, Trái Ðất),
- Mars
(Sao Hỏa),
- Jupiter (Sao Mộc),
- Saturne (Saturn,
Sao Thổ),
- Uranus (Sao
Thiên Vương),
- Neptune (Sao Hải Vương)
- Pluton (Pluto,
Sao Tử Vương)
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| Complete Fact
Sheets |
MERCURY |
VENUS |
EARTH |
MOON |
MARS |
JUPITER |
SATURN |
URANUS |
NEPTUNE |
PLUTO |
| Mass (1024kg) |
0.330 |
4.87 |
5.97 |
0.073 |
0.642 |
1899 |
568 |
86.8 |
102 |
0.0125 |
| Diameter (km) |
4879 |
12,104 |
12,756 |
3475 |
6794 |
142,984 |
120,536 |
51,118 |
49,528 |
2390 |
| Density (kg/m3) |
5427 |
5243 |
5515 |
3340 |
3933 |
1326 |
687 |
1270 |
1638 |
1750 |
| Gravity (m/s2) |
3.7 |
8.9 |
9.8 |
1.6 |
3.7 |
23.1 |
9.0 |
8.7 |
11.0 |
0.6 |
| Escape
Velocity (km/s) |
4.3 |
10.4 |
11.2 |
2.4 |
5.0 |
59.5 |
35.5 |
21.3 |
23.5 |
1.1 |
| Rotation
Period (hours) |
1407.6 |
-5832.5 |
23.9 |
655.7 |
24.6 |
9.9 |
10.7 |
-17.2 |
16.1 |
-153.3 |
| Length of Day
(hours) |
4222.6 |
2802.0 |
24.0 |
708.7 |
24.7 |
9.9 |
10.7 |
17.2 |
16.1 |
153.3 |
| Distance from
Sun (106 km) |
57.9 |
108.2 |
149.6 |
0.384* |
227.9 |
778.6 |
1433.5 |
2872.5 |
4495.1 |
5870.0 |
| Perihelion
(106 km) |
46.0 |
107.5 |
147.1 |
0.363* |
206.6 |
740.5 |
1352.6 |
2741.3 |
4444.5 |
4435.0 |
| Aphelion (106
km) |
69.8 |
108.9 |
152.1 |
0.406* |
249.2 |
816.6 |
1514.5 |
3003.6 |
4545.7 |
7304.3 |
| Orbital
Period (days) |
88.0 |
224.7 |
365.2 |
27.3 |
687.0 |
4331 |
10,747 |
30,589 |
59,800 |
90,588 |
| Orbital
Inclination (degrees) |
7.0 |
3.4 |
0.0 |
5.1 |
1.9 |
1.3 |
2.5 |
0.8 |
1.8 |
17.2 |
| Orbital
Eccentricity |
0.205 |
0.007 |
0.017 |
0.055 |
0.094 |
0.049 |
0.057 |
0.046 |
0.011 |
0.244 |
| Axial Tilt
(degrees) |
0.01 |
177.4 |
23.5 |
6.7 |
25.2 |
3.1 |
26.7 |
97.8 |
28.3 |
122.5 |
| Mean
Temperature (C) |
167 |
464 |
15 |
-20 |
-65 |
-110 |
-140 |
-195 |
-200 |
-225 |
| Number of
Moons |
0 |
0 |
1 |
0 |
2 |
39 |
30 |
21* |
8 |
1 |
| Ring System? |
No |
No |
No |
No |
No |
Yes |
Yes |
Yes |
Yes |
No |
* - Exceptions for the Moon columns: Distance
from Sun, Perhelion and Aphelion is measured from Earth, not the
Sun.
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