🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.8

Radius: 12.6

Gravity: 6.2 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.8 AU - 1.18 AU

Year: 692 Days

Day: 7.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,331,872 km

• M1: 157,377 km (0.073 R)
• M2: 578,495 km (0.105 R)
• M3: 973,733 km (0.091 R)
• M4: 1,367,025 km (0.104 R)
• M5: 1,773,782 km (0.079 R)
• M6: 2,262,518 km (0.092 R)
• M7: 3,127,643 km (0.067 R)
• M8: 3,923,803 km (0.04 R)
• M9: 4,346,117 km (0.105 R)
• M10: 4,833,507 km (0.095 R)
• M11: 5,357,399 km (0.046 R)
• M12: 6,060,359 km (0.081 R)
• M13: 6,692,410 km (0.119 R)
• M14: 7,206,429 km (0.118 R)
• M15: 7,819,182 km (0.072 R)
• M16: 8,440,761 km (0.097 R)
• M17: 8,882,224 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.9

Radius: 12.6

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.73 AU - 2.53 AU

Year: 2185 Days

Day: 7.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 48,331,872 km

• M1: 175,030 km (0.117 R)
• M2: 838,795 km (0.093 R)
• M3: 1,811,331 km (0.104 R)
• M4: 2,256,833 km (0.104 R)
• M5: 3,478,898 km (0.103 R)
• M6: 5,201,219 km (0.1 R)
• M7: 7,032,596 km (0.111 R)
• M8: 10,214,543 km (0.029 R)
• M9: 11,506,320 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.9

Radius: 13.8

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.17 AU - 3.31 AU

Year: 3188 Days

Day: 14.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,331,872 km

• M1: 171,589 km (0.083 R)
• M2: 620,532 km (0.108 R)
• M3: 1,064,538 km (0.058 R)
• M4: 1,542,504 km (0.091 R)
• M5: 2,111,574 km (0.106 R)
• M6: 3,059,875 km (0.096 R)
• M7: 3,804,274 km (0.062 R)
• M8: 5,132,105 km (0.114 R)
• M9: 5,682,774 km (0.049 R)
• M10: 6,389,774 km (0.109 R)
• M11: 7,843,865 km (0.086 R)
• M12: 9,781,307 km (0.119 R)
• M13: 11,138,459 km (0.07 R)
• M14: 11,929,832 km (0.073 R)
• M15: 13,822,993 km (0.103 R)
• M16: 14,945,874 km (0.096 R)
• M17: 18,257,523 km (0.07 R)
• M18: 19,296,031 km (0.034 R)
• M19: 20,763,287 km (0.059 R)
• M20: 21,691,990 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.7

Radius: 12.4

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.74 AU - 4.52 AU

Year: 5900 Days

Day: 6.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,331,872 km

• M1: 154,235 km (0.09 R)
• M2: 548,575 km (0.069 R)
• M3: 1,061,247 km (0.118 R)
• M4: 1,951,055 km (0.059 R)
• M5: 2,437,249 km (0.106 R)
• M6: 2,984,627 km (0.106 R)
• M7: 3,888,348 km (0.066 R)
• M8: 6,234,790 km (0.1 R)
• M9: 7,229,168 km (0.055 R)
• M10: 11,727,426 km (0.113 R)
• M11: 12,442,055 km (0.044 R)
• M12: 16,648,298 km (0.119 R)
• M13: 19,455,053 km (0.061 R)
• M14: 22,176,987 km (0.116 R)
• M15: 27,380,150 km (0.029 R)
• M16: 28,455,909 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.3

Radius: 8.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 3.64 AU - 4.98 AU

Year: 6290 Days

Day: 7.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 48,331,872 km

• M1: 111,600 km (0.067 R)
• M2: 586,424 km (0.079 R)
• M3: 1,030,580 km (0.074 R)
• M4: 1,339,499 km (0.11 R)
• M5: 1,916,050 km (0.114 R)
• M6: 2,295,430 km (0.115 R)
• M7: 2,974,903 km (0.029 R)
• M8: 3,669,337 km (0.112 R)
• M9: 4,196,519 km (0.087 R)
• M10: 4,976,972 km (0.056 R)
• M11: 5,281,553 km (0.1 R)
• M12: 5,876,653 km (0.115 R)
• M13: 7,621,563 km (0.097 R)
• M14: 7,900,862 km (0.104 R)
• M15: 8,316,445 km (0.082 R)
• M16: 10,163,380 km (0.1 R)
• M17: 11,242,430 km (0.068 R)
• M18: 12,395,829 km (0.1 R)
• M19: 12,782,839 km (0.071 R)
• M20: 14,224,663 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.5

Radius: 12.4

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.58 AU - 5.76 AU

Year: 8263 Days

Day: 12.1 Hours

Environment

Temp: -223 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,331,872 km

• M1: 156,779 km (0.116 R)
• M2: 1,019,210 km (0.059 R)
• M3: 1,773,034 km (0.074 R)
• M4: 2,204,474 km (0.072 R)
• M5: 2,853,280 km (0.061 R)
• M6: 4,062,480 km (0.082 R)
• M7: 4,716,821 km (0.059 R)
• M8: 6,730,408 km (0.054 R)
• M9: 8,809,519 km (0.084 R)
• M10: 10,084,542 km (0.113 R)
• M11: 10,813,084 km (0.104 R)
• M12: 12,021,386 km (0.115 R)
• M13: 12,426,497 km (0.068 R)
• M14: 12,998,409 km (0.094 R)
• M15: 13,861,589 km (0.048 R)
• M16: 16,309,609 km (0.108 R)
• M17: 19,723,582 km (0.091 R)
• M18: 21,896,042 km (0.086 R)
• M19: 25,697,025 km (0.076 R)
• M20: 27,229,056 km (0.107 R)
• M21: 28,106,149 km (0.038 R)
• M22: 28,911,584 km (0.091 R)
• M23: 32,875,030 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 428.9

Radius: 6.9

Gravity: 9.01 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5.55 AU - 8.29 AU

Year: 12796 Days

Day: 15.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 74 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 48,331,872 km

• M1: 85,869 km (0.053 R)
• M2: 381,475 km (0.049 R)
• M3: 761,154 km (0.097 R)
• M4: 1,133,653 km (0.042 R)
• M5: 1,726,808 km (0.106 R)
• M6: 1,948,811 km (0.119 R)
• M7: 2,839,068 km (0.102 R)
• M8: 3,362,511 km (0.101 R)
• M9: 3,711,523 km (0.11 R)
• M10: 4,112,146 km (0.066 R)
• M11: 4,423,908 km (0.082 R)
• M12: 5,522,106 km (0.103 R)
• M13: 6,675,805 km (0.118 R)
• M14: 8,423,108 km (0.102 R)
• M15: 9,162,421 km (0.114 R)
• M16: 9,794,322 km (0.043 R)
• M17: 11,090,737 km (0.096 R)
• M18: 13,893,453 km (0.097 R)
• M19: 17,353,652 km (0.108 R)
• M20: 20,277,243 km (0.104 R)
• M21: 24,054,141 km (0.093 R)
• M22: 26,299,754 km (0.045 R)
• M23: 26,882,289 km (0.092 R)
• M24: 31,855,969 km (0.119 R)
• M25: 32,075,579 km (0.115 R)
• M26: 33,868,958 km (0.102 R)
• M27: 34,674,243 km (0.114 R)
• M28: 34,906,718 km (0.12 R)
• M29: 44,118,656 km (0.12 R)
• M30: 48,187,269 km (0.055 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 18,696 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit