🌌 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 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.48 AU - 0.58 AU

Year: 245 Days

Day: 44 Hours

Environment

Temp: -122 °C

Axial Tilt: 31 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307

Radius: 14.7

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.63 AU - 1.05 AU

Year: 489 Days

Day: 9.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,105,736 km

• M1: 185,053 km (0.114 R)
• M2: 731,982 km (0.073 R)
• M3: 1,203,515 km (0.038 R)
• M4: 1,895,704 km (0.083 R)
• M5: 3,755,655 km (0.067 R)
• M6: 4,221,802 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.8

Radius: 9.7

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.87 AU - 0.89 AU

Year: 525 Days

Day: 7.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,105,736 km

• M1: 122,371 km (0.057 R)
• M2: 484,847 km (0.114 R)
• M3: 870,061 km (0.098 R)
• M4: 1,268,440 km (0.096 R)
• M5: 2,380,252 km (0.087 R)
• M6: 3,013,799 km (0.091 R)
• M7: 3,480,245 km (0.093 R)
• M8: 3,880,120 km (0.085 R)
• M9: 4,256,658 km (0.092 R)
• M10: 4,657,580 km (0.03 R)
• M11: 5,008,387 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.5

Radius: 9.4

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.07 AU - 1.37 AU

Year: 857 Days

Day: 5.2 Hours

Environment

Temp: -161 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,105,736 km

• M1: 116,836 km (0.093 R)
• M2: 449,242 km (0.042 R)
• M3: 880,383 km (0.062 R)
• M4: 1,427,463 km (0.101 R)
• M5: 1,960,630 km (0.106 R)
• M6: 2,441,587 km (0.104 R)
• M7: 3,567,760 km (0.027 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.7

Radius: 10.7

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.19 AU - 1.33 AU

Year: 899 Days

Day: 5.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,105,736 km

• M1: 133,890 km (0.107 R)
• M2: 588,668 km (0.101 R)
• M3: 1,114,803 km (0.116 R)
• M4: 2,437,697 km (0.059 R)
• M5: 3,687,139 km (0.064 R)
• M6: 5,020,654 km (0.105 R)
• M7: 5,817,712 km (0.079 R)
• M8: 7,227,522 km (0.112 R)
• M9: 8,140,069 km (0.05 R)
• M10: 9,211,040 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785

Radius: 9.6

Gravity: 8.52 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 2.66 AU - 3.48 AU

Year: 3420 Days

Day: 14.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,105,736 km

• M1: 119,977 km (0.07 R)
• M2: 440,267 km (0.099 R)
• M3: 1,113,158 km (0.107 R)
• M4: 1,469,500 km (0.069 R)
• M5: 2,020,020 km (0.083 R)
• M6: 2,573,831 km (0.085 R)
• M7: 3,098,172 km (0.113 R)
• M8: 3,984,838 km (0.087 R)
• M9: 5,471,841 km (0.095 R)
• M10: 6,429,268 km (0.088 R)
• M11: 7,233,805 km (0.12 R)
• M12: 8,104,165 km (0.058 R)
• M13: 9,616,002 km (0.087 R)
• M14: 12,018,843 km (0.077 R)
• M15: 12,901,620 km (0.064 R)
• M16: 15,324,058 km (0.056 R)
• M17: 15,864,405 km (0.103 R)
• M18: 16,869,105 km (0.073 R)
• M19: 19,252,947 km (0.077 R)
• M20: 21,582,784 km (0.102 R)
• M21: 22,885,333 km (0.115 R)
• M22: 23,950,021 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.9

Radius: 12.1

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.79 AU - 4.97 AU

Year: 5828 Days

Day: 11.4 Hours

Environment

Temp: -210 °C

Axial Tilt: 106.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,105,736 km

• M1: 188,344 km (0.106 R)
• M2: 813,513 km (0.057 R)
• M3: 1,384,977 km (0.114 R)
• M4: 1,799,064 km (0.102 R)
• M5: 2,231,851 km (0.049 R)
• M6: 2,963,683 km (0.088 R)
• M7: 3,686,989 km (0.081 R)
• M8: 5,103,083 km (0.101 R)
• M9: 5,545,892 km (0.096 R)
• M10: 7,505,774 km (0.107 R)
• M11: 8,041,035 km (0.069 R)
• M12: 8,560,589 km (0.056 R)
• M13: 9,102,582 km (0.086 R)
• M14: 10,394,509 km (0.107 R)
• M15: 10,819,367 km (0.094 R)
• M16: 11,957,956 km (0.088 R)
• M17: 12,530,018 km (0.102 R)
• M18: 13,672,946 km (0.09 R)
• M19: 14,068,932 km (0.113 R)
• M20: 15,485,324 km (0.08 R)
• M21: 19,653,420 km (0.071 R)
• M22: 25,185,250 km (0.118 R)
• M23: 26,386,820 km (0.097 R)
• M24: 28,351,489 km (0.084 R)
• M25: 30,893,755 km (0.115 R)
• M26: 32,071,091 km (0.114 R)
• M27: 32,872,337 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 838.6

Radius: 6.6

Gravity: 19.25 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 7.3 AU - 9.62 AU

Year: 15645 Days

Day: 16.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 69,105,736 km

• M1: 82,279 km (0.11 R)
• M2: 386,561 km (0.09 R)
• M3: 659,427 km (0.107 R)
• M4: 900,130 km (0.093 R)
• M5: 1,352,066 km (0.057 R)
• M6: 1,581,100 km (0.094 R)
• M7: 2,819,022 km (0.048 R)
• M8: 3,275,745 km (0.104 R)
• M9: 6,330,084 km (0.078 R)
• M10: 7,202,689 km (0.086 R)
• M11: 7,908,043 km (0.041 R)
• M12: 9,400,730 km (0.087 R)
• M13: 9,620,340 km (0.111 R)
• M14: 12,664,058 km (0.057 R)
• M15: 13,549,378 km (0.118 R)
• M16: 14,475,389 km (0.025 R)
• M17: 20,107,001 km (0.1 R)
• M18: 21,499,308 km (0.026 R)
• M19: 22,267,643 km (0.049 R)
• M20: 22,954,746 km (0.114 R)
• M21: 24,682,153 km (0.111 R)
• M22: 25,524,389 km (0.117 R)
• M23: 28,393,676 km (0.104 R)
• M24: 29,787,778 km (0.053 R)
• M25: 31,963,380 km (0.093 R)
• M26: 36,628,440 km (0.083 R)
• M27: 39,978,385 km (0.092 R)
• M28: 45,691,229 km (0.118 R)
• M29: 50,065,620 km (0.116 R)
• M30: 60,389,668 km (0.072 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 219 - 19,527 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit