🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 679.1

Radius: 10.3

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.65 AU - 0.93 AU

Year: 485 Days

Day: 14.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,063,362 km

• M1: 128,056 km (0.089 R)
• M2: 475,123 km (0.108 R)
• M3: 1,393,654 km (0.083 R)
• M4: 1,901,688 km (0.118 R)
• M5: 2,356,316 km (0.115 R)
• M6: 2,786,111 km (0.088 R)
• M7: 3,151,130 km (0.108 R)
• M8: 4,428,695 km (0.068 R)
• M9: 4,773,219 km (0.117 R)
• M10: 5,516,421 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.1

Radius: 8.9

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.85 AU - 1.15 AU

Year: 690 Days

Day: 14.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 171.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,063,362 km

• M1: 111,301 km (0.066 R)
• M2: 584,329 km (0.106 R)
• M3: 1,064,090 km (0.105 R)
• M4: 1,595,312 km (0.108 R)
• M5: 2,728,815 km (0.077 R)
• M6: 3,886,702 km (0.114 R)
• M7: 5,189,849 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.2

Radius: 9

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.82 AU - 1.18 AU

Year: 690 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,063,362 km

• M1: 112,049 km (0.119 R)
• M2: 491,279 km (0.112 R)
• M3: 820,544 km (0.095 R)
• M4: 1,690,456 km (0.112 R)
• M5: 1,990,400 km (0.078 R)
• M6: 2,390,574 km (0.098 R)
• M7: 2,740,483 km (0.112 R)
• M8: 3,260,486 km (0.046 R)
• M9: 3,618,025 km (0.1 R)
• M10: 4,775,463 km (0.115 R)
• M11: 5,333,912 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.3

Radius: 11.2

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.21 AU - 1.93 AU

Year: 1358 Days

Day: 11.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,063,362 km

• M1: 139,425 km (0.059 R)
• M2: 580,440 km (0.051 R)
• M3: 1,039,256 km (0.088 R)
• M4: 1,620,594 km (0.107 R)
• M5: 2,143,887 km (0.06 R)
• M6: 2,676,755 km (0.111 R)
• M7: 3,071,843 km (0.118 R)
• M8: 4,546,429 km (0.108 R)
• M9: 5,095,303 km (0.083 R)
• M10: 5,595,409 km (0.105 R)
• M11: 6,694,056 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729

Radius: 14.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.35 AU - 2.95 AU

Year: 2978 Days

Day: 12.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,063,362 km

• M1: 185,053 km (0.103 R)
• M2: 774,169 km (0.115 R)
• M3: 1,307,037 km (0.07 R)
• M4: 1,977,534 km (0.077 R)
• M5: 2,607,042 km (0.075 R)
• M6: 3,191,521 km (0.115 R)
• M7: 3,923,354 km (0.115 R)
• M8: 4,471,780 km (0.08 R)
• M9: 5,023,347 km (0.11 R)
• M10: 6,838,867 km (0.1 R)
• M11: 7,385,497 km (0.039 R)
• M12: 8,060,184 km (0.031 R)
• M13: 8,740,854 km (0.094 R)
• M14: 9,645,323 km (0.108 R)
• M15: 13,803,545 km (0.106 R)
• M16: 14,580,706 km (0.098 R)
• M17: 15,541,424 km (0.081 R)
• M18: 17,198,818 km (0.11 R)
• M19: 18,271,286 km (0.038 R)
• M20: 20,926,049 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.6

Radius: 12.8

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 3.68 AU - 4.73 AU

Year: 5941 Days

Day: 7.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 18,063,362 km

• M1: 163,510 km (0.048 R)
• M2: 573,558 km (0.064 R)
• M3: 1,630,617 km (0.116 R)
• M4: 2,698,446 km (0.063 R)
• M5: 3,395,722 km (0.062 R)
• M6: 3,819,084 km (0.087 R)
• M7: 4,369,455 km (0.089 R)
• M8: 5,494,131 km (0.079 R)
• M9: 8,490,726 km (0.095 R)
• M10: 10,276,177 km (0.075 R)
• M11: 10,952,359 km (0.026 R)
• M12: 11,703,041 km (0.102 R)
• M13: 13,013,968 km (0.087 R)
• M14: 14,265,204 km (0.045 R)
• M15: 16,431,830 km (0.116 R)
• M16: 18,316,763 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396.4

Radius: 10.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.86 AU - 4.88 AU

Year: 6306 Days

Day: 6.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 18,063,362 km

• M1: 133,591 km (0.085 R)
• M2: 566,378 km (0.104 R)
• M3: 947,254 km (0.095 R)
• M4: 1,368,821 km (0.119 R)
• M5: 1,969,456 km (0.056 R)
• M6: 2,651,024 km (0.03 R)
• M7: 3,781,385 km (0.06 R)
• M8: 4,143,711 km (0.097 R)
• M9: 4,504,392 km (0.115 R)
• M10: 6,602,053 km (0.101 R)
• M11: 6,928,625 km (0.11 R)
• M12: 8,533,960 km (0.054 R)
• M13: 9,608,671 km (0.048 R)
• M14: 10,682,036 km (0.119 R)
• M15: 11,409,830 km (0.06 R)
• M16: 11,738,496 km (0.095 R)
• M17: 12,218,855 km (0.045 R)
• M18: 12,712,378 km (0.111 R)
• M19: 13,167,904 km (0.075 R)
• M20: 17,897,141 km (0.036 R)
• M21: 18,534,129 km (0.091 R)
• M22: 19,186,077 km (0.098 R)
• M23: 20,329,303 km (0.116 R)
• M24: 22,165,019 km (0.089 R)
• M25: 23,423,436 km (0.118 R)
• M26: 24,728,827 km (0.116 R)
• M27: 26,489,295 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 35.8

Radius: 3

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.58 AU - 7.4 AU

Year: 10119 Days

Day: 19.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,063,362 km

• M1: 37,250 km (0.116 R)
• M2: 155,133 km (0.085 R)
• M3: 810,222 km (0.106 R)
• M4: 1,583,344 km (0.059 R)
• M5: 1,932,804 km (0.093 R)
• M6: 2,119,353 km (0.053 R)
• M7: 4,333,402 km (0.096 R)
• M8: 5,680,381 km (0.088 R)
• M9: 6,516,334 km (0.118 R)
• M10: 9,940,031 km (0.06 R)
• M11: 12,030,810 km (0.111 R)
• M12: 15,394,967 km (0.083 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 357 - 20,232 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit