🌌 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: 331.7

Radius: 8.6

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.45 AU - 0.61 AU

Year: 266 Days

Day: 12.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,337,478 km

• M1: 106,962 km (0.09 R)
• M2: 387,608 km (0.115 R)
• M3: 747,690 km (0.102 R)
• M4: 1,124,378 km (0.08 R)
• M5: 1,709,305 km (0.06 R)
• M6: 1,978,731 km (0.082 R)
• M7: 2,515,787 km (0.072 R)
• M8: 2,849,540 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 770.8

Radius: 11.8

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.47 AU - 0.77 AU

Year: 337 Days

Day: 10.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,337,478 km

• M1: 146,756 km (0.083 R)
• M2: 521,199 km (0.099 R)
• M3: 947,104 km (0.041 R)
• M4: 1,440,927 km (0.092 R)
• M5: 1,821,653 km (0.089 R)
• M6: 2,391,920 km (0.09 R)
• M7: 2,773,694 km (0.095 R)
• M8: 3,174,916 km (0.072 R)
• M9: 3,918,267 km (0.081 R)
• M10: 4,576,947 km (0.058 R)
• M11: 5,095,902 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.7

Radius: 12.9

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.62 AU - 0.72 AU

Year: 379 Days

Day: 14.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,337,478 km

• M1: 160,519 km (0.097 R)
• M2: 586,424 km (0.109 R)
• M3: 988,992 km (0.108 R)
• M4: 1,401,582 km (0.076 R)
• M5: 1,917,246 km (0.051 R)
• M6: 2,344,647 km (0.082 R)
• M7: 2,747,963 km (0.037 R)
• M8: 3,464,537 km (0.032 R)
• M9: 3,954,620 km (0.028 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.5

Radius: 13.6

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 1.05 AU - 1.63 AU

Year: 1071 Days

Day: 13.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,337,478 km

• M1: 169,195 km (0.083 R)
• M2: 649,704 km (0.101 R)
• M3: 1,102,836 km (0.105 R)
• M4: 1,552,377 km (0.096 R)
• M5: 3,051,198 km (0.107 R)
• M6: 3,948,636 km (0.075 R)
• M7: 5,034,417 km (0.113 R)
• M8: 5,627,124 km (0.06 R)
• M9: 6,266,056 km (0.105 R)
• M10: 6,953,159 km (0.054 R)
• M11: 7,869,147 km (0.047 R)
• M12: 8,559,841 km (0.092 R)
• M13: 10,032,482 km (0.116 R)
• M14: 10,622,197 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.4

Radius: 12.5

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.28 AU - 1.96 AU

Year: 1423 Days

Day: 13.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 101.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 63,337,478 km

• M1: 155,432 km (0.069 R)
• M2: 562,937 km (0.073 R)
• M3: 1,254,827 km (0.052 R)
• M4: 1,679,535 km (0.085 R)
• M5: 2,143,588 km (0.043 R)
• M6: 2,930,173 km (0.071 R)
• M7: 3,415,170 km (0.112 R)
• M8: 4,548,523 km (0.099 R)
• M9: 5,756,227 km (0.078 R)
• M10: 6,349,083 km (0.111 R)
• M11: 7,140,456 km (0.115 R)
• M12: 8,888,956 km (0.033 R)
• M13: 9,391,455 km (0.087 R)
• M14: 12,386,853 km (0.03 R)
• M15: 13,134,693 km (0.055 R)
• M16: 13,746,100 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.3

Radius: 13.2

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.38 AU - 2.12 AU

Year: 1598 Days

Day: 13.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,337,478 km

• M1: 164,258 km (0.112 R)
• M2: 727,345 km (0.11 R)
• M3: 1,249,591 km (0.12 R)
• M4: 1,746,854 km (0.086 R)
• M5: 2,205,671 km (0.107 R)
• M6: 2,864,051 km (0.116 R)
• M7: 4,632,747 km (0.108 R)
• M8: 5,095,902 km (0.109 R)
• M9: 5,849,127 km (0.111 R)
• M10: 6,651,421 km (0.092 R)
• M11: 7,192,516 km (0.105 R)
• M12: 7,869,596 km (0.093 R)
• M13: 8,419,219 km (0.1 R)
• M14: 9,023,744 km (0.065 R)
• M15: 9,968,903 km (0.111 R)
• M16: 10,547,398 km (0.114 R)
• M17: 11,250,508 km (0.114 R)
• M18: 11,736,551 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.9

Radius: 4.3

Gravity: 42.02 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.73 AU - 8.33 AU

Year: 14263 Days

Day: 22.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 63,337,478 km

• M1: 53,556 km (0.089 R)
• M2: 298,448 km (0.093 R)
• M3: 673,639 km (0.055 R)
• M4: 939,325 km (0.066 R)
• M5: 1,299,108 km (0.067 R)
• M6: 1,487,751 km (0.091 R)
• M7: 4,195,472 km (0.111 R)
• M8: 6,498,831 km (0.106 R)
• M9: 8,597,240 km (0.08 R)
• M10: 10,073,921 km (0.117 R)
• M11: 11,107,791 km (0.094 R)
• M12: 12,084,366 km (0.114 R)
• M13: 17,352,755 km (0.117 R)
• M14: 19,343,753 km (0.065 R)
• M15: 37,028,914 km (0.044 R)
• M16: 37,294,899 km (0.108 R)
• M17: 39,055,067 km (0.084 R)
• M18: 58,348,705 km (0.066 R)
• M19: 60,164,524 km (0.062 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 16,591 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit