Other Neptunian Bodies are celestial bodies that either orbit Neptune directly or are near its orbit, but that are smaller than the main Neptunian moon of Triton. They are unlocked with the Mission to the Outer Planets tech.
Small Moons of Neptune
| Minable Space Body
|
Mass (kg)
|
Density (g / cm³)
|
Mass/Density Modifiers (Only for Modifiable Mining Profiles)
|
| Mass Modifier
|
Density Modifier
|
 Modifier
|
  Modifier
|
| Hippocamp
|
5e+15
|
1.3
|
0.1
|
1
|
0.75
|
0.75
|
| Larissa
|
4.95e+18
|
1.3
|
1
|
1
|
1
|
1
|
| Proteus
|
5.035e+19
|
1.3
|
1
|
1
|
1
|
1
|
| Nereid
|
2.7e+19
|
1.5
|
1
|
1
|
1
|
1
|
| Sao
|
6e+16
|
1.5
|
1
|
1
|
1
|
1
|
| Galatea
|
3.75e+18
|
1.3
|
1
|
1
|
1
|
1
|
| Despina
|
2.1e+18
|
1.3
|
1
|
1
|
1
|
1
|
| Halimede
|
1.6e+17
|
1.5
|
1
|
1
|
1
|
1
|
| Neso
|
1.5e+17
|
1.5
|
1
|
1
|
1
|
1
|
| Thalassa
|
3.5e+17
|
1.3
|
1
|
1
|
1
|
1
|
| Ione
|
2.33978e+16
|
1.5
|
0.468
|
1
|
0.75
|
0.75
|
| Psamathe
|
4e+16
|
1.5
|
0.8
|
1
|
0.8
|
0.8
|
| Protho
|
7.27357e+15
|
1.5
|
0.145
|
1
|
0.75
|
0.75
|
| Laomedeia
|
5e+16
|
1.5
|
1
|
1
|
1
|
1
|
| Naiad
|
1.9e+17
|
1.3
|
1
|
1
|
1
|
1
|
| Bombardable Space Body
|
Mass (kg)
|
Mean Radius (km)
|
Sphere of Influence Radius (km)
|
Surface Gravity (m/s²)
|
Atmosphere
|
| Type
|
Scale Height
|
Surface Density (kg/m³)
|
| Hippocamp
|
5e+15
|
8.7
|
7.903
|
0.00441
|
None
|
|
|
| Larissa
|
4.95e+18
|
98
|
87.145
|
0.0344
|
None
|
|
|
| Proteus
|
5.035e+19
|
209
|
352.538
|
0.07693
|
None
|
|
|
| Nereid
|
2.7e+19
|
170
|
12877.367
|
0.06235
|
None
|
|
|
| Sao
|
6e+16
|
22
|
4508.063
|
0.00827
|
None
|
|
|
| Galatea
|
3.75e+18
|
88.667
|
65.691
|
0.03183
|
None
|
|
|
| Despina
|
2.1e+18
|
76
|
44.166
|
0.02426
|
None
|
|
|
| Halimede
|
1.6e+17
|
31
|
4987.385
|
0.01111
|
None
|
|
|
| Neso
|
1.5e+17
|
30
|
14420.503
|
0.01112
|
None
|
|
|
| Thalassa
|
3.5e+17
|
43.333
|
20.562
|
0.01244
|
None
|
|
|
| Ione
|
2.33978e+16
|
15.5
|
3251.392
|
0.0065
|
None
|
|
|
| Psamathe
|
4e+16
|
20
|
8293.963
|
0.00667
|
None
|
|
|
| Protho
|
7.27357e+15
|
10.5
|
4414.496
|
0.0044
|
None
|
|
|
| Laomedeia
|
5e+16
|
21
|
4443.462
|
0.00757
|
None
|
|
|
| Naiad
|
1.9e+17
|
34.667
|
15.51
|
0.01055
|
None
|
|
|
Is the Space Body in the chosen Solar System Size?
| Space Body
|
Solar System Size
|
| Minimal
|
Light
|
Medium
|
Full
|
Massive
|
| Hippocamp
|
|
|
Yes
|
Yes
|
Yes
|
| Larissa
|
|
|
Yes
|
Yes
|
Yes
|
| Proteus
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
| Nereid
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
| Sao
|
|
|
Yes
|
Yes
|
Yes
|
| Galatea
|
|
|
Yes
|
Yes
|
Yes
|
| Despina
|
|
|
Yes
|
Yes
|
Yes
|
| Halimede
|
|
|
Yes
|
Yes
|
Yes
|
| Neso
|
|
|
Yes
|
Yes
|
Yes
|
| Thalassa
|
|
|
Yes
|
Yes
|
Yes
|
| Ione
|
|
|
Yes
|
Yes
|
Yes
|
| Psamathe
|
|
|
Yes
|
Yes
|
Yes
|
| Protho
|
|
|
Yes
|
Yes
|
Yes
|
| Laomedeia
|
|
|
Yes
|
Yes
|
Yes
|
| Naiad
|
|
Yes
|
Yes
|
Yes
|
Yes
|
Other Bodies Near Neptune
| Minable Space Body
|
Mass (kg)
|
Density (g / cm³)
|
Mass/Density Modifiers (Only for Modifiable Mining Profiles)
|
| Mass Modifier
|
Density Modifier
|
 Modifier
|
  Modifier
|
| 52975 Cyllarus
|
1.97554e+17
|
1.1
|
1
|
0.88
|
1
|
0.88
|
| 55576 Amycus
|
3.13676e+17
|
1
|
1
|
0.8
|
1
|
0.8
|
| 309239 Ripheus
|
7.89023e+18
|
1
|
1
|
0.8
|
1
|
0.8
|
| 447178 Agrius
|
4.2053e+18
|
1.1
|
1
|
0.88
|
1
|
0.88
|
| 2013 KY18 Ephesos
|
4.60767e+18
|
1.1
|
1
|
0.88
|
1
|
0.88
|
| 2008 LC18 Aegea
|
6.28319e+17
|
1.2
|
1
|
0.96
|
1
|
0.96
|
| 613490 Myrina
|
2.77148e+18
|
1.2
|
1
|
0.96
|
1
|
0.96
|
| 562274 Hippasus
|
7.25279e+18
|
1.2
|
1
|
0.96
|
1
|
0.96
|
| 385571 Otrera
|
5.72151e+17
|
1
|
1
|
0.8
|
1
|
0.8
|
| 310071 Pyraethus
|
6.98051e+17
|
1
|
1
|
0.8
|
1
|
0.8
|
| 316179 Sanape
|
4.18879e+18
|
1
|
1
|
0.8
|
1
|
0.8
|
| 523695 Medon
|
1.36456e+19
|
1.2
|
1
|
0.96
|
1
|
0.96
|
| 2011 HM102 Myrleia
|
1.75588e+18
|
1.1
|
1
|
0.88
|
1
|
0.88
|
| 10370 Hylonome
|
2.33392e+17
|
1.1
|
1
|
0.88
|
1
|
0.88
|
| 612243 Penthesilea
|
9.71521e+17
|
0.95
|
1
|
0.76
|
1
|
0.76
|
| Bombardable Space Body
|
Mass (kg)
|
Mean Radius (km)
|
Sphere of Influence Radius (km)
|
Surface Gravity (m/s²)
|
Atmosphere
|
| Type
|
Scale Height
|
Surface Density (kg/m³)
|
| 52975 Cyllarus
|
1.97554e+17
|
35
|
24583.398
|
0.01076
|
None
|
|
|
| 55576 Amycus
|
3.13676e+17
|
42.15
|
28427.747
|
0.01178
|
None
|
|
|
| 309239 Ripheus
|
7.89023e+18
|
123.5
|
124101.779
|
0.03452
|
None
|
|
|
| 447178 Agrius
|
4.2053e+18
|
97
|
92517.079
|
0.02983
|
None
|
|
|
| 2013 KY18 Ephesos
|
4.60767e+18
|
100
|
100550.603
|
0.03075
|
None
|
|
|
| 2008 LC18 Aegea
|
6.28319e+17
|
50
|
44818.275
|
0.01677
|
None
|
|
|
| 613490 Myrina
|
2.77148e+18
|
82
|
81868.081
|
0.02751
|
None
|
|
|
| 562274 Hippasus
|
7.25279e+18
|
113
|
110634.16
|
0.03791
|
None
|
|
|
| 385571 Otrera
|
5.72151e+17
|
51.5
|
43305.932
|
0.0144
|
None
|
|
|
| 310071 Pyraethus
|
6.98051e+17
|
55.03
|
46391.672
|
0.01538
|
None
|
|
|
| 316179 Sanape
|
4.18879e+18
|
100
|
98540.665
|
0.02796
|
None
|
|
|
| 523695 Medon
|
1.36456e+19
|
139.5
|
170539.096
|
0.0468
|
None
|
|
|
| 2011 HM102 Myrleia
|
1.75588e+18
|
72.5
|
67934.691
|
0.02229
|
None
|
|
|
| 10370 Hylonome
|
2.33392e+17
|
37
|
25264.192
|
0.01138
|
None
|
|
|
| 612243 Penthesilea
|
9.71521e+17
|
62.5
|
54204.018
|
0.0166
|
None
|
|
|
Is the Space Body in the chosen Solar System Size?
| Space Body
|
Solar System Size
|
| Minimal
|
Light
|
Medium
|
Full
|
Massive
|
| 52975 Cyllarus
|
|
|
|
Yes
|
Yes
|
| 55576 Amycus
|
|
|
|
Yes
|
Yes
|
| 309239 Ripheus
|
|
|
|
|
Yes
|
| 447178 Agrius
|
|
|
|
Yes
|
Yes
|
| 2013 KY18 Ephesos
|
|
|
|
Yes
|
Yes
|
| 2008 LC18 Aegea
|
|
|
|
Yes
|
Yes
|
| 613490 Myrina
|
|
|
|
Yes
|
Yes
|
| 562274 Hippasus
|
|
|
|
Yes
|
Yes
|
| 385571 Otrera
|
|
|
|
|
Yes
|
| 310071 Pyraethus
|
|
|
|
|
Yes
|
| 316179 Sanape
|
|
|
|
|
Yes
|
| 523695 Medon
|
|
|
|
|
Yes
|
| 2011 HM102 Myrleia
|
|
|
|
Yes
|
Yes
|
| 10370 Hylonome
|
|
|
|
|
Yes
|
| 612243 Penthesilea
|
|
|
Yes
|
Yes
|
Yes
|