🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 20

Radius: 15

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.7 AU - 1.06 AU

Year: 525 Days

Day: 6.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 70,387,419 km

• M1: 186,549 km (0.054 R)
• M2: 846,275 km (0.1 R)
• M3: 1,375,702 km (0.114 R)
• M4: 1,915,302 km (0.085 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921

Radius: 8.1

Gravity: 14.04 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.11 AU - 1.21 AU

Year: 794 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,387,419 km

• M1: 100,979 km (0.118 R)
• M2: 369,956 km (0.118 R)
• M3: 627,413 km (0.046 R)
• M4: 886,218 km (0.064 R)
• M5: 1,177,485 km (0.092 R)
• M6: 1,710,502 km (0.075 R)
• M7: 2,027,799 km (0.091 R)
• M8: 2,684,983 km (0.098 R)
• M9: 3,023,822 km (0.085 R)
• M10: 3,419,359 km (0.09 R)
• M11: 3,895,678 km (0.109 R)
• M12: 4,231,675 km (0.081 R)
• M13: 4,709,939 km (0.094 R)
• M14: 6,716,795 km (0.049 R)
• M15: 7,440,101 km (0.113 R)
• M16: 9,096,149 km (0.086 R)
• M17: 9,517,267 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.3

Radius: 9.7

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.16 AU - 1.64 AU

Year: 1053 Days

Day: 11.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 118.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 70,387,419 km

• M1: 120,875 km (0.052 R)
• M2: 556,504 km (0.045 R)
• M3: 1,105,678 km (0.067 R)
• M4: 1,677,890 km (0.101 R)
• M5: 1,999,226 km (0.081 R)
• M6: 2,525,810 km (0.045 R)
• M7: 3,315,089 km (0.049 R)
• M8: 3,708,830 km (0.108 R)
• M9: 4,276,704 km (0.109 R)
• M10: 4,624,369 km (0.069 R)
• M11: 5,528,689 km (0.073 R)
• M12: 5,962,074 km (0.119 R)
• M13: 6,439,440 km (0.059 R)
• M14: 6,919,799 km (0.095 R)
• M15: 7,260,733 km (0.076 R)
• M16: 8,175,374 km (0.093 R)
• M17: 8,479,507 km (0.105 R)
• M18: 8,950,141 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 542

Radius: 11.3

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.16 AU - 2.24 AU

Year: 2075 Days

Day: 7.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,387,419 km

• M1: 192,532 km (0.054 R)
• M2: 678,875 km (0.108 R)
• M3: 1,178,532 km (0.108 R)
• M4: 1,801,158 km (0.096 R)
• M5: 2,158,996 km (0.118 R)
• M6: 3,113,730 km (0.056 R)
• M7: 3,466,332 km (0.069 R)
• M8: 4,329,961 km (0.087 R)
• M9: 6,584,251 km (0.112 R)
• M10: 10,105,635 km (0.094 R)
• M11: 11,974,262 km (0.028 R)
• M12: 13,216,822 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.9

Radius: 9.7

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.39 AU - 2.45 AU

Year: 2394 Days

Day: 14.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 70,387,419 km

• M1: 120,576 km (0.089 R)
• M2: 638,633 km (0.088 R)
• M3: 1,175,091 km (0.075 R)
• M4: 1,487,601 km (0.103 R)
• M5: 1,932,356 km (0.08 R)
• M6: 2,267,305 km (0.112 R)
• M7: 2,609,436 km (0.085 R)
• M8: 3,212,016 km (0.111 R)
• M9: 3,919,015 km (0.102 R)
• M10: 4,265,035 km (0.049 R)
• M11: 4,615,693 km (0.104 R)
• M12: 5,152,599 km (0.071 R)
• M13: 6,390,372 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 814.8

Radius: 4.4

Gravity: 42.09 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 7.99 AU - 9.41 AU

Year: 16316 Days

Day: 20.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 70,387,419 km

• M1: 56,997 km (0.092 R)
• M2: 273,615 km (0.095 R)
• M3: 507,286 km (0.096 R)
• M4: 967,449 km (0.042 R)
• M5: 1,549,535 km (0.096 R)
• M6: 1,897,350 km (0.058 R)
• M7: 3,096,227 km (0.118 R)
• M8: 3,281,728 km (0.034 R)
• M9: 4,006,081 km (0.086 R)
• M10: 4,831,562 km (0.082 R)
• M11: 5,844,041 km (0.088 R)
• M12: 6,127,978 km (0.113 R)
• M13: 6,900,651 km (0.094 R)
• M14: 7,403,599 km (0.076 R)
• M15: 7,544,969 km (0.088 R)
• M16: 9,220,764 km (0.106 R)
• M17: 9,550,029 km (0.098 R)
• M18: 10,525,706 km (0.109 R)
• M19: 11,502,879 km (0.112 R)
• M20: 11,692,570 km (0.071 R)
• M21: 12,143,458 km (0.086 R)
• M22: 12,672,884 km (0.093 R)
• M23: 16,255,604 km (0.094 R)
• M24: 17,725,104 km (0.037 R)
• M25: 18,063,195 km (0.104 R)
• M26: 18,752,542 km (0.053 R)
• M27: 19,192,060 km (0.116 R)
• M28: 20,275,149 km (0.058 R)
• M29: 23,665,635 km (0.056 R)
• M30: 27,303,107 km (0.112 R)
• M31: 29,726,294 km (0.072 R)
• M32: 30,929,061 km (0.086 R)
• M33: 32,920,358 km (0.069 R)
• M34: 34,599,893 km (0.074 R)
• M35: 36,471,662 km (0.06 R)
• M36: 48,641,000 km (0.104 R)
• M37: 52,359,554 km (0.093 R)
• M38: 56,627,282 km (0.071 R)
• M39: 59,220,860 km (0.104 R)
• M40: 59,976,180 km (0.118 R)
• M41: 65,846,849 km (0.099 R)
• M42: 66,861,123 km (0.096 R)
• M43: 69,756,290 km (0.065 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: 325 - 13,994 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit