🌌 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: 420.6

Radius: 10.3

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.49 AU - 0.57 AU

Year: 262 Days

Day: 7.3 Hours

Environment

Temp: -144 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,753,204 km

• M1: 128,056 km (0.102 R)
• M2: 506,239 km (0.118 R)
• M3: 1,048,681 km (0.032 R)
• M4: 1,393,953 km (0.078 R)
• M5: 1,874,761 km (0.075 R)
• M6: 2,307,846 km (0.04 R)
• M7: 2,763,671 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.9

Radius: 13.1

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.66 AU - 1.04 AU

Year: 532 Days

Day: 14.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 38,753,204 km

• M1: 163,510 km (0.097 R)
• M2: 584,180 km (0.102 R)
• M3: 1,385,875 km (0.118 R)
• M4: 1,953,898 km (0.077 R)
• M5: 2,422,738 km (0.115 R)
• M6: 3,544,422 km (0.098 R)
• M7: 4,303,781 km (0.089 R)
• M8: 4,912,644 km (0.025 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.5

Radius: 8.7

Gravity: 11.41 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.16 AU - 1.52 AU

Year: 1052 Days

Day: 14.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,753,204 km

• M1: 117,135 km (0.029 R)
• M2: 458,667 km (0.11 R)
• M3: 985,700 km (0.111 R)
• M4: 2,338,664 km (0.038 R)
• M5: 2,832,636 km (0.117 R)
• M6: 3,912,732 km (0.034 R)
• M7: 4,778,156 km (0.072 R)
• M8: 5,616,802 km (0.047 R)
• M9: 6,093,720 km (0.047 R)
• M10: 6,503,767 km (0.087 R)
• M11: 7,951,576 km (0.114 R)
• M12: 8,413,983 km (0.111 R)
• M13: 9,303,043 km (0.047 R)
• M14: 10,638,353 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.8

Radius: 14.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.16 AU - 1.92 AU

Year: 1296 Days

Day: 8.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 38,753,204 km

• M1: 177,872 km (0.07 R)
• M2: 994,676 km (0.079 R)
• M3: 1,635,254 km (0.077 R)
• M4: 2,524,015 km (0.116 R)
• M5: 3,416,666 km (0.107 R)
• M6: 4,399,823 km (0.093 R)
• M7: 5,114,153 km (0.08 R)
• M8: 5,789,737 km (0.079 R)
• M9: 6,860,858 km (0.106 R)
• M10: 7,965,189 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.7

Radius: 13.9

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 2.62 AU - 3.1 AU

Year: 3281 Days

Day: 6.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,753,204 km

• M1: 172,935 km (0.113 R)
• M2: 632,649 km (0.112 R)
• M3: 1,075,010 km (0.109 R)
• M4: 1,807,741 km (0.117 R)
• M5: 2,282,415 km (0.056 R)
• M6: 3,190,025 km (0.108 R)
• M7: 3,748,474 km (0.045 R)
• M8: 4,532,367 km (0.104 R)
• M9: 6,252,443 km (0.05 R)
• M10: 6,881,801 km (0.093 R)
• M11: 8,338,585 km (0.114 R)
• M12: 9,833,517 km (0.073 R)
• M13: 11,369,289 km (0.032 R)
• M14: 12,263,435 km (0.111 R)
• M15: 13,495,374 km (0.073 R)
• M16: 13,990,542 km (0.114 R)
• M17: 16,877,781 km (0.114 R)
• M18: 17,337,047 km (0.094 R)
• M19: 17,804,690 km (0.109 R)
• M20: 18,948,964 km (0.109 R)
• M21: 22,746,207 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.9

Radius: 13.9

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.54 AU - 3.46 AU

Year: 3524 Days

Day: 5.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,753,204 km

• M1: 174,730 km (0.096 R)
• M2: 748,737 km (0.044 R)
• M3: 1,398,291 km (0.11 R)
• M4: 2,170,665 km (0.115 R)
• M5: 2,950,968 km (0.115 R)
• M6: 3,531,557 km (0.082 R)
• M7: 4,454,426 km (0.094 R)
• M8: 4,948,847 km (0.08 R)
• M9: 6,509,003 km (0.046 R)
• M10: 7,116,969 km (0.115 R)
• M11: 7,564,865 km (0.056 R)
• M12: 9,510,535 km (0.083 R)
• M13: 11,206,975 km (0.112 R)
• M14: 12,127,151 km (0.065 R)
• M15: 14,268,495 km (0.097 R)
• M16: 15,561,769 km (0.027 R)
• M17: 16,429,586 km (0.085 R)
• M18: 20,290,408 km (0.087 R)
• M19: 20,868,753 km (0.079 R)
• M20: 22,058,655 km (0.111 R)
• M21: 23,084,447 km (0.067 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 436.3

Radius: 7

Gravity: 8.9 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.65 AU - 6.65 AU

Year: 9109 Days

Day: 24.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,753,204 km

• M1: 88,712 km (0.079 R)
• M2: 471,383 km (0.116 R)
• M3: 954,135 km (0.094 R)
• M4: 2,992,855 km (0.092 R)
• M5: 3,291,752 km (0.041 R)
• M6: 3,753,261 km (0.05 R)
• M7: 4,050,512 km (0.051 R)
• M8: 5,307,134 km (0.057 R)
• M9: 7,749,020 km (0.098 R)
• M10: 8,863,524 km (0.104 R)
• M11: 9,302,295 km (0.102 R)
• M12: 10,804,108 km (0.063 R)
• M13: 12,899,974 km (0.063 R)
• M14: 15,882,956 km (0.104 R)
• M15: 16,204,441 km (0.114 R)
• M16: 17,670,800 km (0.097 R)
• M17: 19,296,181 km (0.112 R)
• M18: 19,810,049 km (0.098 R)
• M19: 25,373,594 km (0.073 R)
• M20: 30,097,895 km (0.083 R)
• M21: 30,491,487 km (0.068 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 247 - 10,298 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit