🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.53 AU - 0.71 AU

Year: 320 Days

Day: 43.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 10 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 867.8

Radius: 11.2

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.61 AU - 0.83 AU

Year: 401 Days

Day: 12.2 Hours

Environment

Temp: -143 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,355,007 km

• M1: 139,276 km (0.025 R)
• M2: 496,815 km (0.055 R)
• M3: 1,291,329 km (0.098 R)
• M4: 1,724,415 km (0.08 R)
• M5: 2,272,392 km (0.109 R)
• M6: 2,663,141 km (0.111 R)
• M7: 3,043,269 km (0.117 R)
• M8: 3,682,052 km (0.081 R)
• M9: 4,867,017 km (0.076 R)
• M10: 5,324,637 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.2

Radius: 15

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 3.55 AU - 3.69 AU

Year: 4518 Days

Day: 14.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,355,007 km

• M1: 195,973 km (0.086 R)
• M2: 718,818 km (0.064 R)
• M3: 1,610,720 km (0.076 R)
• M4: 2,083,450 km (0.11 R)
• M5: 2,586,248 km (0.096 R)
• M6: 3,152,476 km (0.077 R)
• M7: 5,922,281 km (0.059 R)
• M8: 6,573,181 km (0.079 R)
• M9: 7,571,447 km (0.098 R)
• M10: 8,484,892 km (0.058 R)
• M11: 9,470,592 km (0.11 R)
• M12: 11,090,887 km (0.076 R)
• M13: 13,833,166 km (0.092 R)
• M14: 16,138,917 km (0.098 R)
• M15: 18,690,758 km (0.066 R)
• M16: 19,576,677 km (0.105 R)
• M17: 22,474,088 km (0.114 R)
• M18: 25,569,418 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 461.7

Radius: 13.7

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.92 AU - 5.56 AU

Year: 7869 Days

Day: 14.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 173.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 69,355,007 km

• M1: 170,392 km (0.1 R)
• M2: 688,300 km (0.07 R)
• M3: 1,191,846 km (0.084 R)
• M4: 1,833,621 km (0.057 R)
• M5: 2,521,023 km (0.037 R)
• M6: 3,397,368 km (0.085 R)
• M7: 3,824,619 km (0.118 R)
• M8: 4,707,247 km (0.109 R)
• M9: 5,941,279 km (0.076 R)
• M10: 6,397,553 km (0.119 R)
• M11: 9,515,771 km (0.036 R)
• M12: 10,006,003 km (0.057 R)
• M13: 10,749,056 km (0.093 R)
• M14: 15,270,352 km (0.057 R)
• M15: 15,696,557 km (0.043 R)
• M16: 17,747,095 km (0.088 R)
• M17: 19,683,041 km (0.066 R)
• M18: 20,776,302 km (0.09 R)
• M19: 21,909,655 km (0.112 R)
• M20: 26,245,750 km (0.076 R)
• M21: 29,310,561 km (0.09 R)
• M22: 31,416,301 km (0.11 R)
• M23: 34,971,345 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77.3

Radius: 9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 4.57 AU - 6.31 AU

Year: 8324 Days

Day: 10.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,355,007 km

• M1: 111,899 km (0.056 R)
• M2: 466,147 km (0.106 R)
• M3: 993,330 km (0.11 R)
• M4: 1,824,795 km (0.113 R)
• M5: 2,122,046 km (0.119 R)
• M6: 2,690,667 km (0.029 R)
• M7: 4,109,753 km (0.066 R)
• M8: 5,919,139 km (0.099 R)
• M9: 7,562,771 km (0.117 R)
• M10: 9,166,460 km (0.077 R)
• M11: 10,470,505 km (0.091 R)
• M12: 11,516,343 km (0.055 R)
• M13: 13,908,563 km (0.086 R)
• M14: 14,337,161 km (0.098 R)
• M15: 17,096,643 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 588

Radius: 6.8

Gravity: 12.72 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 8.46 AU - 10.26 AU

Year: 18786 Days

Day: 22.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 85.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,355,007 km

• M1: 84,972 km (0.073 R)
• M2: 327,769 km (0.072 R)
• M3: 606,171 km (0.081 R)
• M4: 852,708 km (0.03 R)
• M5: 1,722,171 km (0.099 R)
• M6: 2,229,158 km (0.065 R)
• M7: 2,551,392 km (0.061 R)
• M8: 3,105,801 km (0.1 R)
• M9: 3,708,382 km (0.098 R)
• M10: 4,321,284 km (0.108 R)
• M11: 4,652,195 km (0.12 R)
• M12: 5,477,526 km (0.106 R)
• M13: 8,486,238 km (0.032 R)
• M14: 9,381,881 km (0.117 R)
• M15: 9,768,442 km (0.035 R)
• M16: 10,280,964 km (0.099 R)
• M17: 12,980,607 km (0.099 R)
• M18: 14,023,903 km (0.098 R)
• M19: 21,011,919 km (0.098 R)
• M20: 24,564,270 km (0.07 R)
• M21: 27,814,583 km (0.045 R)
• M22: 28,612,238 km (0.12 R)
• M23: 30,975,286 km (0.044 R)
• M24: 31,340,604 km (0.119 R)
• M25: 32,704,787 km (0.117 R)
• M26: 34,367,418 km (0.118 R)
• M27: 35,418,193 km (0.109 R)
• M28: 37,860,379 km (0.101 R)
• M29: 40,994,903 km (0.12 R)
• M30: 43,532,532 km (0.109 R)
• M31: 47,290,430 km (0.116 R)
• M32: 49,413,523 km (0.076 R)
• M33: 53,498,742 km (0.092 R)
• M34: 57,619,415 km (0.107 R)
• M35: 64,486,257 km (0.118 R)
• M36: 65,681,394 km (0.11 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: 498 - 13,806 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit