🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.8

Radius: 14.5

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.64 AU - 0.82 AU

Year: 416 Days

Day: 8.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,499,983 km

• M1: 180,265 km (0.105 R)
• M2: 640,728 km (0.102 R)
• M3: 1,189,303 km (0.085 R)
• M4: 1,801,607 km (0.074 R)
• M5: 2,631,277 km (0.067 R)
• M6: 4,617,637 km (0.057 R)
• M7: 5,249,988 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.3

Radius: 13.6

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.69 AU - 0.99 AU

Year: 513 Days

Day: 13.2 Hours

Environment

Temp: -159 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 25,499,983 km

• M1: 169,195 km (0.083 R)
• M2: 653,892 km (0.078 R)
• M3: 1,087,128 km (0.109 R)
• M4: 1,530,386 km (0.093 R)
• M5: 2,197,144 km (0.097 R)
• M6: 2,982,832 km (0.116 R)
• M7: 3,544,871 km (0.074 R)
• M8: 4,104,966 km (0.095 R)
• M9: 4,645,014 km (0.084 R)
• M10: 5,705,064 km (0.101 R)
• M11: 6,187,368 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.7

Radius: 8.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 1.01 AU - 1.31 AU

Year: 833 Days

Day: 7.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 25,499,983 km

• M1: 103,671 km (0.052 R)
• M2: 566,527 km (0.104 R)
• M3: 862,432 km (0.103 R)
• M4: 2,242,622 km (0.1 R)
• M5: 2,940,047 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.4

Radius: 13.6

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.77 AU - 2.39 AU

Year: 2000 Days

Day: 8.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 25,499,983 km

• M1: 169,195 km (0.059 R)
• M2: 646,562 km (0.054 R)
• M3: 1,112,859 km (0.106 R)
• M4: 1,994,588 km (0.111 R)
• M5: 2,562,163 km (0.055 R)
• M6: 3,688,934 km (0.116 R)
• M7: 4,223,597 km (0.089 R)
• M8: 5,032,323 km (0.1 R)
• M9: 5,791,532 km (0.089 R)
• M10: 6,598,463 km (0.073 R)
• M11: 7,871,391 km (0.087 R)
• M12: 9,650,110 km (0.118 R)
• M13: 10,596,316 km (0.091 R)
• M14: 11,763,928 km (0.049 R)
• M15: 15,832,092 km (0.076 R)
• M16: 16,430,633 km (0.104 R)
• M17: 17,200,015 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.4

Radius: 14.8

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.41 AU - 2.61 AU

Year: 2652 Days

Day: 13 Hours

Environment

Temp: -205 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,499,983 km

• M1: 184,155 km (0.113 R)
• M2: 657,183 km (0.08 R)
• M3: 1,320,800 km (0.078 R)
• M4: 2,166,327 km (0.102 R)
• M5: 3,201,694 km (0.086 R)
• M6: 3,849,752 km (0.1 R)
• M7: 4,378,580 km (0.058 R)
• M8: 8,883,122 km (0.081 R)
• M9: 10,170,262 km (0.117 R)
• M10: 12,612,596 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.2

Radius: 14.1

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 2.85 AU - 4.43 AU

Year: 4631 Days

Day: 13.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,499,983 km

• M1: 175,628 km (0.102 R)
• M2: 628,012 km (0.09 R)
• M3: 1,154,596 km (0.087 R)
• M4: 1,819,260 km (0.117 R)
• M5: 2,312,484 km (0.117 R)
• M6: 2,951,716 km (0.072 R)
• M7: 3,469,773 km (0.077 R)
• M8: 4,562,885 km (0.12 R)
• M9: 5,231,886 km (0.12 R)
• M10: 6,374,066 km (0.118 R)
• M11: 7,212,263 km (0.103 R)
• M12: 8,236,859 km (0.097 R)
• M13: 10,394,958 km (0.12 R)
• M14: 12,446,094 km (0.109 R)
• M15: 15,682,644 km (0.115 R)
• M16: 16,959,013 km (0.076 R)
• M17: 17,463,158 km (0.109 R)
• M18: 18,107,326 km (0.093 R)
• M19: 19,035,880 km (0.095 R)
• M20: 22,688,462 km (0.083 R)
• M21: 25,450,338 km (0.1 R)
• M22: 27,815,779 km (0.061 R)
• M23: 29,321,631 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.5

Radius: 9.7

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 4.42 AU - 4.7 AU

Year: 6493 Days

Day: 5.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,499,983 km

• M1: 120,576 km (0.116 R)
• M2: 487,988 km (0.079 R)
• M3: 1,015,770 km (0.117 R)
• M4: 4,543,587 km (0.054 R)
• M5: 6,657,704 km (0.066 R)
• M6: 9,645,323 km (0.099 R)
• M7: 10,308,191 km (0.025 R)
• M8: 12,173,527 km (0.105 R)
• M9: 12,712,079 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 68.2

Radius: 3.6

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.29 AU - 7.67 AU

Year: 12297 Days

Day: 20.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 25,499,983 km

• M1: 44,879 km (0.049 R)
• M2: 242,349 km (0.098 R)
• M3: 401,072 km (0.074 R)
• M4: 832,811 km (0.085 R)
• M5: 1,099,096 km (0.061 R)
• M6: 2,411,069 km (0.116 R)
• M7: 2,587,744 km (0.038 R)
• M8: 2,772,797 km (0.084 R)
• M9: 2,912,970 km (0.082 R)
• M10: 3,284,272 km (0.061 R)
• M11: 3,501,488 km (0.083 R)
• M12: 4,396,382 km (0.115 R)
• M13: 5,011,379 km (0.087 R)
• M14: 5,219,769 km (0.088 R)
• M15: 6,907,083 km (0.057 R)
• M16: 7,463,288 km (0.11 R)
• M17: 8,664,110 km (0.071 R)
• M18: 9,078,646 km (0.044 R)
• M19: 12,405,553 km (0.068 R)
• M20: 13,077,846 km (0.111 R)
• M21: 15,024,713 km (0.047 R)
• M22: 16,634,236 km (0.037 R)
• M23: 18,539,814 km (0.045 R)
• M24: 18,975,293 km (0.038 R)
• M25: 19,866,448 km (0.106 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 445 - 14,637 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit