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Neptune
Orbit data
Object data
Discovered by Johann Gottfried Galle |
1846 |
|
Mass |
1,0243 × 1026 |
kg |
Equatorial radius |
24.764 |
km |
Oblateness |
0,0171 |
|
Mean density |
1,638 |
g/cm³ |
Escape velocity |
23,5 |
km/s |
Surface force of gravity |
11,00 |
m/s² |
Tilt of axis |
28,32 |
° |
Rotational period |
16,11 |
h |
Equatorial rotational velocity |
9667,1 |
km/h |
Mean surface temperature |
72 |
K |
Minimum surface temperature |
55 |
K |
Albedo |
0,41 |
|
Apparent magnitude |
+ 7,78 |
mvis |
Atmosphere
|
|
Hydrogen (H2) |
|
|
Helium (He) |
|
|
Methane (CH4) |
|
|
Ethane (C2H6) |
|
|
Ammonia (NH3) |
Mythology
The greek god Poseidon is a son of Cronus and Rhea. Poseidon is the
ruler of the sea. The roman god Neptune is identical to the greek
god Poseidon.
Poseidon became the ruler of the sea as the power of the world got
divided. The symbols of Poseidon are tridents and dolphins. Poseidon
also has the powers of earthquakes.
|
 |
Satellites
|
No. |
|
Name |
|
Distance |
|
Eccentricity |
|
Radius |
|
Mass |
1 |
I |
Triton |
Triton |
354760 |
354.760 km |
0.0000 |
0,0000 |
1353.4 |
1353,4 km |
22.2147 |
2,147 × 1022 kg |
2 |
II |
Nereid |
Nereid |
5513400 |
5.513.400 km |
0.7512 |
0,7512 |
170 |
170 km |
19.31 |
3,1 × 1019 kg |
3 |
III |
Naiad |
Naiad |
48227 |
48.227 km |
0.0003 |
0,0003 |
33 |
33 km |
17.13 |
1,3 × 1017 kg |
4 |
IV |
Thalassa |
Thalassa |
50075 |
50.075 km |
0.0002 |
0,0002 |
41 |
41 km |
17.35 |
3,5 × 1017 kg |
5 |
V |
Despina |
Despina |
52526 |
52.526 km |
0.0001 |
0,0001 |
75 |
75 km |
18.23 |
2,3 × 1018 kg |
6 |
VI |
Galatea |
Galatea |
61953 |
61.953 km |
0.0001 |
0,0001 |
88 |
88 km |
18.27 |
2,7 × 1018 kg |
7 |
VII |
Larissa |
Larissa |
73548 |
73.548 km |
0.0014 |
0,0014 |
104 |
104 × 89 km |
18.48 |
4,8 × 1018 kg |
8 |
VIII |
Proteus |
Proteus |
117647 |
117.647 km |
0.0004 |
0,0004 |
218 |
218 × 208 × 201 km |
19.49 |
4,9 × 1019 kg |
9 |
X |
Psamathe |
Psamathe |
46695000 |
46.695.000 km |
0.450 |
0,450 |
14 |
14 km |
16.15 |
1,5 × 1016 kg |
Ring system
|
Name |
|
Distance |
|
Width |
|
Thickness |
|
Mass |
|
Albedo |
Galle |
Galle |
41900 |
41.900 km |
2000 |
2.000 km |
|
|
|
|
0.015 |
0,015 |
LeVerrier |
LeVerrier |
53200 |
53.200 km |
110 |
110 km |
|
|
|
|
0.015 |
0,015 |
Lassell |
Lassell |
53200 |
53.200 km |
4000 |
4.000 km |
|
|
|
|
0.015 |
0,015 |
Arago |
Arago |
57200 |
57.200 km |
100 |
< 100 km |
|
|
|
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|
Adams |
Adams |
62933 |
62.933 km |
50 |
50 km |
|
|
|
|
0.015 |
0,015 |
Links
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