🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.2

Radius: 11.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.4 AU - 0.66 AU

Year: 271 Days

Day: 10 Hours

Environment

Temp: -145 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,238,297 km

• M1: 139,425 km (0.055 R)
• M2: 530,175 km (0.104 R)
• M3: 1,059,751 km (0.102 R)
• M4: 1,421,778 km (0.11 R)
• M5: 1,909,318 km (0.116 R)
• M6: 2,473,451 km (0.11 R)
• M7: 2,906,238 km (0.073 R)
• M8: 3,473,214 km (0.117 R)
• M9: 3,834,493 km (0.072 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.9

Radius: 9.2

Gravity: 9 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.34 AU - 1.44 AU

Year: 1152 Days

Day: 9.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 54,238,297 km

• M1: 114,592 km (0.046 R)
• M2: 457,919 km (0.062 R)
• M3: 887,863 km (0.087 R)
• M4: 1,569,880 km (0.104 R)
• M5: 1,958,087 km (0.076 R)
• M6: 2,409,723 km (0.077 R)
• M7: 2,875,869 km (0.09 R)
• M8: 3,311,947 km (0.1 R)
• M9: 3,663,502 km (0.102 R)
• M10: 4,832,610 km (0.043 R)
• M11: 5,145,269 km (0.115 R)
• M12: 5,789,886 km (0.063 R)
• M13: 7,214,507 km (0.078 R)
• M14: 7,861,219 km (0.09 R)
• M15: 8,602,326 km (0.077 R)
• M16: 10,160,239 km (0.116 R)
• M17: 10,675,304 km (0.034 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.3

Radius: 10

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.64 AU - 2.02 AU

Year: 1740 Days

Day: 11.8 Hours

Environment

Temp: -197 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 54,238,297 km

• M1: 133,591 km (0.09 R)
• M2: 583,581 km (0.112 R)
• M3: 1,253,331 km (0.113 R)
• M4: 1,948,063 km (0.105 R)
• M5: 2,916,859 km (0.119 R)
• M6: 3,235,054 km (0.099 R)
• M7: 6,081,752 km (0.047 R)
• M8: 6,729,660 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.3

Radius: 12.6

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.47 AU - 3.13 AU

Year: 3293 Days

Day: 14.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,238,297 km

• M1: 156,629 km (0.065 R)
• M2: 597,344 km (0.115 R)
• M3: 1,332,767 km (0.077 R)
• M4: 2,372,772 km (0.109 R)
• M5: 2,848,343 km (0.077 R)
• M6: 3,298,932 km (0.064 R)
• M7: 3,914,527 km (0.118 R)
• M8: 4,627,960 km (0.119 R)
• M9: 6,151,016 km (0.108 R)
• M10: 7,146,589 km (0.104 R)
• M11: 9,348,371 km (0.108 R)
• M12: 10,199,284 km (0.09 R)
• M13: 10,663,187 km (0.102 R)
• M14: 12,226,484 km (0.049 R)
• M15: 12,662,263 km (0.096 R)
• M16: 13,335,154 km (0.071 R)
• M17: 14,461,477 km (0.096 R)
• M18: 15,498,190 km (0.07 R)
• M19: 19,313,384 km (0.102 R)
• M20: 19,905,193 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.6

Radius: 15

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.47 AU - 3.21 AU

Year: 3364 Days

Day: 9.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,238,297 km

• M1: 186,549 km (0.117 R)
• M2: 838,197 km (0.082 R)
• M3: 1,333,216 km (0.103 R)
• M4: 1,892,862 km (0.044 R)
• M5: 2,385,936 km (0.087 R)
• M6: 2,965,927 km (0.061 R)
• M7: 3,523,927 km (0.106 R)
• M8: 4,066,968 km (0.094 R)
• M9: 4,854,301 km (0.101 R)
• M10: 5,555,915 km (0.071 R)
• M11: 6,439,889 km (0.119 R)
• M12: 7,384,151 km (0.08 R)
• M13: 9,586,232 km (0.082 R)
• M14: 11,841,719 km (0.097 R)
• M15: 12,377,578 km (0.065 R)
• M16: 15,940,252 km (0.081 R)
• M17: 16,429,137 km (0.067 R)
• M18: 17,724,206 km (0.086 R)
• M19: 19,147,181 km (0.109 R)
• M20: 20,200,350 km (0.108 R)
• M21: 20,902,114 km (0.102 R)
• M22: 22,085,582 km (0.091 R)
• M23: 22,693,847 km (0.068 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 729.1

Radius: 7

Gravity: 14.88 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 6.1 AU - 8.4 AU

Year: 13722 Days

Day: 24.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 54,238,297 km

• M1: 88,712 km (0.085 R)
• M2: 388,805 km (0.12 R)
• M3: 670,198 km (0.113 R)
• M4: 1,087,726 km (0.04 R)
• M5: 1,314,816 km (0.118 R)
• M6: 1,636,302 km (0.114 R)
• M7: 2,009,399 km (0.118 R)
• M8: 3,094,432 km (0.069 R)
• M9: 3,398,415 km (0.116 R)
• M10: 5,020,205 km (0.073 R)
• M11: 6,760,926 km (0.04 R)
• M12: 7,230,215 km (0.095 R)
• M13: 7,766,972 km (0.107 R)
• M14: 8,523,339 km (0.058 R)
• M15: 10,072,425 km (0.074 R)
• M16: 12,168,440 km (0.089 R)
• M17: 15,758,640 km (0.093 R)
• M18: 16,129,942 km (0.097 R)
• M19: 17,673,941 km (0.111 R)
• M20: 18,811,783 km (0.104 R)
• M21: 19,825,308 km (0.093 R)
• M22: 26,369,018 km (0.063 R)
• M23: 29,167,246 km (0.072 R)
• M24: 29,502,346 km (0.089 R)
• M25: 30,408,610 km (0.091 R)
• M26: 32,996,204 km (0.086 R)
• M27: 36,756,197 km (0.102 R)
• M28: 37,016,497 km (0.071 R)
• M29: 37,937,571 km (0.109 R)
• M30: 40,237,638 km (0.109 R)
• M31: 43,786,848 km (0.082 R)
• M32: 44,373,421 km (0.115 R)
• M33: 46,013,463 km (0.063 R)
• M34: 46,772,073 km (0.058 R)
• M35: 48,470,458 km (0.078 R)
• M36: 50,530,271 km (0.094 R)
• M37: 58,463,596 km (0.053 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 503.8

Radius: 6.7

Gravity: 11.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 6.84 AU - 7.88 AU

Year: 14035 Days

Day: 16.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,238,297 km

• M1: 91,853 km (0.088 R)
• M2: 300,991 km (0.063 R)
• M3: 549,922 km (0.104 R)
• M4: 759,508 km (0.076 R)
• M5: 1,209,648 km (0.108 R)
• M6: 1,994,289 km (0.087 R)
• M7: 2,345,994 km (0.078 R)
• M8: 2,610,034 km (0.08 R)
• M9: 3,125,848 km (0.112 R)
• M10: 4,038,544 km (0.115 R)
• M11: 5,814,271 km (0.073 R)
• M12: 8,658,276 km (0.091 R)
• M13: 8,898,231 km (0.045 R)
• M14: 11,036,882 km (0.106 R)
• M15: 13,689,252 km (0.063 R)
• M16: 14,955,598 km (0.03 R)
• M17: 15,231,906 km (0.082 R)
• M18: 19,878,415 km (0.106 R)
• M19: 21,237,213 km (0.071 R)
• M20: 25,585,425 km (0.111 R)
• M21: 34,769,836 km (0.085 R)
• M22: 40,357,167 km (0.119 R)
• M23: 45,351,342 km (0.059 R)
• M24: 49,203,936 km (0.048 R)
• M25: 53,752,310 km (0.109 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 14,788 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit