🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.8

Radius: 11.8

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.61 AU - 0.83 AU

Year: 422 Days

Day: 8.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,815,512 km

• M1: 146,756 km (0.066 R)
• M2: 583,880 km (0.115 R)
• M3: 1,071,270 km (0.08 R)
• M4: 1,473,389 km (0.116 R)
• M5: 3,298,334 km (0.045 R)
• M6: 3,907,796 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.9

Radius: 11.4

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.69 AU - 0.75 AU

Year: 422 Days

Day: 5.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,815,512 km

• M1: 141,819 km (0.097 R)
• M2: 512,822 km (0.032 R)
• M3: 904,469 km (0.12 R)
• M4: 2,204,624 km (0.091 R)
• M5: 2,833,384 km (0.085 R)
• M6: 3,440,153 km (0.086 R)
• M7: 4,118,878 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478

Radius: 9.2

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.63 AU - 0.89 AU

Year: 457 Days

Day: 8.2 Hours

Environment

Temp: -163 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,815,512 km

• M1: 165,156 km (0.08 R)
• M2: 656,585 km (0.106 R)
• M3: 947,852 km (0.1 R)
• M4: 1,340,547 km (0.054 R)
• M5: 1,832,724 km (0.12 R)
• M6: 3,038,482 km (0.067 R)
• M7: 3,348,748 km (0.114 R)
• M8: 4,151,939 km (0.075 R)
• M9: 4,606,268 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.7

Radius: 12.5

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.88 AU - 1.14 AU

Year: 701 Days

Day: 6.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 37,815,512 km

• M1: 155,432 km (0.12 R)
• M2: 1,067,082 km (0.119 R)
• M3: 2,103,795 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.9

Radius: 14.4

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.34 AU - 1.6 AU

Year: 1230 Days

Day: 10.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,815,512 km

• M1: 179,069 km (0.086 R)
• M2: 731,234 km (0.105 R)
• M3: 1,496,128 km (0.114 R)
• M4: 2,085,843 km (0.087 R)
• M5: 2,809,897 km (0.084 R)
• M6: 3,308,357 km (0.034 R)
• M7: 4,378,879 km (0.062 R)
• M8: 5,188,353 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.2

Radius: 12.7

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.67 AU - 3.05 AU

Year: 3339 Days

Day: 7 Hours

Environment

Temp: -203 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,815,512 km

• M1: 164,857 km (0.07 R)
• M2: 869,014 km (0.064 R)
• M3: 1,565,542 km (0.09 R)
• M4: 2,119,802 km (0.091 R)
• M5: 2,565,603 km (0.069 R)
• M6: 3,022,027 km (0.1 R)
• M7: 3,629,843 km (0.104 R)
• M8: 5,421,427 km (0.066 R)
• M9: 6,180,038 km (0.108 R)
• M10: 6,704,378 km (0.118 R)
• M11: 9,068,174 km (0.072 R)
• M12: 10,257,328 km (0.075 R)
• M13: 11,162,544 km (0.112 R)
• M14: 13,609,965 km (0.103 R)
• M15: 14,399,094 km (0.118 R)
• M16: 17,517,761 km (0.114 R)
• M17: 18,931,012 km (0.089 R)
• M18: 20,738,603 km (0.096 R)
• M19: 21,651,300 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 228.2

Radius: 11.2

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 3.7 AU - 4.36 AU

Year: 5584 Days

Day: 6.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,815,512 km

• M1: 139,276 km (0.119 R)
• M2: 845,976 km (0.103 R)
• M3: 1,255,276 km (0.088 R)
• M4: 1,882,689 km (0.049 R)
• M5: 2,773,844 km (0.054 R)
• M6: 4,221,353 km (0.079 R)
• M7: 5,846,135 km (0.061 R)
• M8: 6,814,333 km (0.05 R)
• M9: 8,673,086 km (0.066 R)
• M10: 10,848,239 km (0.088 R)
• M11: 11,476,401 km (0.114 R)
• M12: 13,317,651 km (0.118 R)
• M13: 13,795,018 km (0.062 R)
• M14: 14,632,916 km (0.071 R)
• M15: 15,926,189 km (0.078 R)
• M16: 16,355,834 km (0.085 R)
• M17: 20,388,544 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 226.7

Radius: 7.7

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 6.33 AU - 6.63 AU

Year: 11386 Days

Day: 15 Hours

Environment

Temp: -222 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,815,512 km

• M1: 95,892 km (0.12 R)
• M2: 1,212,042 km (0.087 R)
• M3: 2,962,487 km (0.055 R)
• M4: 7,500,987 km (0.116 R)
• M5: 8,482,798 km (0.068 R)
• M6: 9,726,106 km (0.106 R)
• M7: 15,490,411 km (0.069 R)
• M8: 17,805,587 km (0.026 R)
• M9: 20,712,424 km (0.095 R)
• M10: 25,945,357 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 140.5

Radius: 4.7

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 6.73 AU - 9.17 AU

Year: 15473 Days

Day: 19.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,815,512 km

• M1: 58,493 km (0.108 R)
• M2: 613,650 km (0.096 R)
• M3: 960,418 km (0.046 R)
• M4: 1,140,235 km (0.074 R)
• M5: 1,542,504 km (0.052 R)
• M6: 2,493,049 km (0.049 R)
• M7: 4,079,384 km (0.03 R)
• M8: 5,459,873 km (0.075 R)
• M9: 12,624,415 km (0.074 R)
• M10: 16,632,890 km (0.117 R)
• M11: 16,962,155 km (0.053 R)
• M12: 17,770,133 km (0.066 R)
• M13: 18,253,184 km (0.035 R)
• M14: 19,975,804 km (0.105 R)
• M15: 21,882,429 km (0.032 R)
• M16: 23,906,937 km (0.084 R)
• M17: 25,526,633 km (0.103 R)
• M18: 32,226,373 km (0.077 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: 437 - 12,104 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit