🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81

Radius: 10.8

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.75 AU - 0.77 AU

Year: 449 Days

Day: 8.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 27,543,031 km

• M1: 135,386 km (0.107 R)
• M2: 478,713 km (0.104 R)
• M3: 924,964 km (0.084 R)
• M4: 1,366,128 km (0.058 R)
• M5: 1,853,518 km (0.114 R)
• M6: 2,252,944 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.6

Radius: 8.7

Gravity: 5.36 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.04 AU - 1.18 AU

Year: 793 Days

Day: 10.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,543,031 km

• M1: 108,608 km (0.082 R)
• M2: 381,026 km (0.103 R)
• M3: 888,013 km (0.102 R)
• M4: 1,198,279 km (0.086 R)
• M5: 1,529,489 km (0.084 R)
• M6: 2,441,138 km (0.112 R)
• M7: 3,284,571 km (0.091 R)
• M8: 4,043,032 km (0.101 R)
• M9: 4,355,841 km (0.119 R)
• M10: 5,446,110 km (0.101 R)
• M11: 5,997,977 km (0.1 R)
• M12: 6,307,196 km (0.111 R)
• M13: 6,894,966 km (0.103 R)
• M14: 7,191,469 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465

Radius: 10.8

Gravity: 3.99 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.27 AU - 1.77 AU

Year: 1271 Days

Day: 9 Hours

Environment

Temp: -197 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,543,031 km

• M1: 134,339 km (0.069 R)
• M2: 522,545 km (0.048 R)
• M3: 864,376 km (0.084 R)
• M4: 1,254,079 km (0.068 R)
• M5: 1,682,078 km (0.082 R)
• M6: 2,050,987 km (0.072 R)
• M7: 2,929,725 km (0.08 R)
• M8: 3,993,964 km (0.089 R)
• M9: 4,447,246 km (0.065 R)
• M10: 5,182,070 km (0.105 R)
• M11: 5,538,263 km (0.115 R)
• M12: 6,017,275 km (0.116 R)
• M13: 7,748,871 km (0.107 R)
• M14: 8,592,154 km (0.118 R)
• M15: 9,178,129 km (0.058 R)
• M16: 9,612,860 km (0.084 R)
• M17: 10,030,986 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 631.5

Radius: 9.6

Gravity: 6.85 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 1.51 AU - 2.37 AU

Year: 1833 Days

Day: 12.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,543,031 km

• M1: 119,379 km (0.09 R)
• M2: 419,921 km (0.065 R)
• M3: 781,798 km (0.093 R)
• M4: 1,241,513 km (0.12 R)
• M5: 1,679,685 km (0.118 R)
• M6: 2,077,017 km (0.093 R)
• M7: 2,784,166 km (0.095 R)
• M8: 3,093,534 km (0.068 R)
• M9: 3,906,748 km (0.092 R)
• M10: 5,441,323 km (0.07 R)
• M11: 5,762,809 km (0.067 R)
• M12: 8,565,376 km (0.083 R)
• M13: 9,354,654 km (0.112 R)
• M14: 12,169,188 km (0.118 R)
• M15: 13,330,666 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.2

Radius: 12.4

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.38 AU - 2.8 AU

Year: 2827 Days

Day: 12.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 116.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,543,031 km

• M1: 154,535 km (0.082 R)
• M2: 557,102 km (0.106 R)
• M3: 1,039,406 km (0.062 R)
• M4: 1,964,220 km (0.085 R)
• M5: 2,757,388 km (0.09 R)
• M6: 3,199,599 km (0.093 R)
• M7: 4,071,904 km (0.09 R)
• M8: 4,536,555 km (0.042 R)
• M9: 4,957,374 km (0.045 R)
• M10: 6,473,549 km (0.118 R)
• M11: 9,359,441 km (0.072 R)
• M12: 10,140,791 km (0.117 R)
• M13: 10,564,153 km (0.111 R)
• M14: 10,999,183 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 221.6

Radius: 8

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 8.17 AU - 8.27 AU

Year: 15984 Days

Day: 15.7 Hours

Environment

Temp: -242 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 27,543,031 km

• M1: 99,483 km (0.04 R)
• M2: 631,453 km (0.052 R)
• M3: 2,228,709 km (0.057 R)
• M4: 3,545,021 km (0.118 R)
• M5: 4,554,358 km (0.066 R)
• M6: 5,347,825 km (0.089 R)
• M7: 6,018,472 km (0.09 R)
• M8: 6,520,522 km (0.12 R)
• M9: 8,811,763 km (0.034 R)
• M10: 10,088,282 km (0.075 R)
• M11: 16,437,216 km (0.063 R)
• M12: 17,204,054 km (0.115 R)
• M13: 18,959,585 km (0.103 R)
• M14: 22,482,466 km (0.036 R)
• M15: 22,737,380 km (0.03 R)
• M16: 25,671,294 km (0.116 R)
• M17: 26,893,209 km (0.096 R)
• M18: 28,153,571 km (0.069 R)
• M19: 29,554,406 km (0.076 R)
• M20: 32,277,985 km (0.105 R)
• M21: 33,148,644 km (0.098 R)
• M22: 33,923,262 km (0.119 R)
• M23: 35,050,632 km (0.087 R)
• M24: 41,445,791 km (0.103 R)
• M25: 42,994,428 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 43.2

Radius: 7.3

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 7.07 AU - 10.29 AU

Year: 17345 Days

Day: 21.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,543,031 km

• M1: 90,806 km (0.055 R)
• M2: 719,566 km (0.072 R)
• M3: 1,350,420 km (0.115 R)
• M4: 1,645,277 km (0.109 R)
• M5: 2,168,571 km (0.118 R)
• M6: 2,526,259 km (0.083 R)
• M7: 3,710,925 km (0.107 R)
• M8: 5,728,850 km (0.045 R)
• M9: 6,696,898 km (0.09 R)
• M10: 7,457,155 km (0.118 R)
• M11: 9,266,840 km (0.07 R)
• M12: 10,083,196 km (0.114 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 19,020 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit