🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.4

Radius: 10.4

Gravity: 6.07 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.44 AU - 0.68 AU

Year: 295 Days

Day: 13.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,783,373 km

• M1: 129,402 km (0.085 R)
• M2: 528,230 km (0.117 R)
• M3: 881,879 km (0.094 R)
• M4: 1,359,545 km (0.087 R)
• M5: 1,804,599 km (0.073 R)
• M6: 2,135,809 km (0.05 R)
• M7: 2,516,835 km (0.114 R)
• M8: 2,894,569 km (0.081 R)
• M9: 3,236,550 km (0.118 R)
• M10: 3,571,948 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415

Radius: 14.4

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.78 AU - 0.92 AU

Year: 551 Days

Day: 12.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,783,373 km

• M1: 179,069 km (0.112 R)
• M2: 758,910 km (0.113 R)
• M3: 1,255,725 km (0.101 R)
• M4: 1,800,859 km (0.109 R)
• M5: 2,295,131 km (0.083 R)
• M6: 3,007,216 km (0.103 R)
• M7: 3,529,163 km (0.115 R)
• M8: 4,772,920 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 599.9

Radius: 8.6

Gravity: 8.11 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.99 AU - 1.15 AU

Year: 778 Days

Day: 6.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,783,373 km

• M1: 106,962 km (0.057 R)
• M2: 762,949 km (0.119 R)
• M3: 1,048,232 km (0.114 R)
• M4: 1,540,409 km (0.117 R)
• M5: 1,853,667 km (0.093 R)
• M6: 2,383,244 km (0.119 R)
• M7: 2,747,365 km (0.078 R)
• M8: 3,035,042 km (0.064 R)
• M9: 3,917,819 km (0.118 R)
• M10: 4,491,676 km (0.113 R)
• M11: 7,047,705 km (0.107 R)
• M12: 7,406,591 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.6

Radius: 12.3

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 1.11 AU - 1.45 AU

Year: 1018 Days

Day: 10.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,783,373 km

• M1: 153,039 km (0.066 R)
• M2: 641,027 km (0.081 R)
• M3: 1,241,662 km (0.113 R)
• M4: 2,191,160 km (0.111 R)
• M5: 2,849,989 km (0.038 R)
• M6: 3,469,175 km (0.114 R)
• M7: 4,041,087 km (0.12 R)
• M8: 4,492,574 km (0.116 R)
• M9: 6,010,094 km (0.111 R)
• M10: 6,886,140 km (0.102 R)
• M11: 7,355,129 km (0.072 R)
• M12: 9,240,960 km (0.11 R)
• M13: 10,407,524 km (0.044 R)
• M14: 11,026,560 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.2

Radius: 12.3

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.17 AU - 3.47 AU

Year: 4252 Days

Day: 5.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,783,373 km

• M1: 153,039 km (0.111 R)
• M2: 966,103 km (0.103 R)
• M3: 2,673,912 km (0.099 R)
• M4: 3,288,311 km (0.074 R)
• M5: 3,870,695 km (0.112 R)
• M6: 4,780,699 km (0.075 R)
• M7: 5,264,798 km (0.086 R)
• M8: 5,921,981 km (0.045 R)
• M9: 6,506,610 km (0.06 R)
• M10: 6,996,393 km (0.084 R)
• M11: 9,594,908 km (0.06 R)
• M12: 12,039,337 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 426.3

Radius: 10.3

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 3.54 AU - 5.54 AU

Year: 6800 Days

Day: 12.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 50,783,373 km

• M1: 131,796 km (0.056 R)
• M2: 501,602 km (0.093 R)
• M3: 1,031,178 km (0.068 R)
• M4: 1,467,854 km (0.093 R)
• M5: 1,830,330 km (0.029 R)
• M6: 2,206,269 km (0.112 R)
• M7: 2,722,382 km (0.06 R)
• M8: 3,548,611 km (0.116 R)
• M9: 5,603,787 km (0.054 R)
• M10: 6,901,698 km (0.06 R)
• M11: 8,351,301 km (0.119 R)
• M12: 11,077,872 km (0.066 R)
• M13: 22,571,925 km (0.092 R)
• M14: 23,644,093 km (0.085 R)
• M15: 30,247,792 km (0.027 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.9

Radius: 6.9

Gravity: 10.23 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 5.88 AU - 8.06 AU

Year: 12935 Days

Day: 20.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,783,373 km

• M1: 88,861 km (0.093 R)
• M2: 422,614 km (0.083 R)
• M3: 868,565 km (0.063 R)
• M4: 1,151,754 km (0.081 R)
• M5: 1,440,927 km (0.089 R)
• M6: 2,737,940 km (0.114 R)
• M7: 3,001,532 km (0.118 R)
• M8: 5,020,505 km (0.116 R)
• M9: 5,727,654 km (0.109 R)
• M10: 8,659,323 km (0.075 R)
• M11: 8,894,042 km (0.097 R)
• M12: 11,146,388 km (0.06 R)
• M13: 11,993,860 km (0.098 R)
• M14: 13,005,590 km (0.092 R)
• M15: 15,956,558 km (0.08 R)
• M16: 16,309,758 km (0.071 R)
• M17: 31,220,477 km (0.098 R)
• M18: 35,705,721 km (0.112 R)
• M19: 46,499,357 km (0.097 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 11,996 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit