🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.7

Radius: 10.3

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.77 AU - 1.19 AU

Year: 658 Days

Day: 8.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 55,455,216 km

• M1: 128,355 km (0.087 R)
• M2: 459,415 km (0.084 R)
• M3: 826,977 km (0.071 R)
• M4: 1,198,728 km (0.1 R)
• M5: 1,840,951 km (0.107 R)
• M6: 2,346,293 km (0.06 R)
• M7: 3,150,082 km (0.108 R)
• M8: 3,720,349 km (0.103 R)
• M9: 4,157,923 km (0.049 R)
• M10: 4,998,214 km (0.069 R)
• M11: 5,350,069 km (0.063 R)
• M12: 5,889,967 km (0.118 R)
• M13: 6,283,111 km (0.111 R)
• M14: 6,948,671 km (0.082 R)
• M15: 7,569,054 km (0.045 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.6

Radius: 14.3

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.96 AU - 1.1 AU

Year: 709 Days

Day: 10 Hours

Environment

Temp: -176 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 55,455,216 km

• M1: 177,872 km (0.06 R)
• M2: 800,199 km (0.115 R)
• M3: 1,634,506 km (0.068 R)
• M4: 2,178,145 km (0.097 R)
• M5: 2,736,444 km (0.065 R)
• M6: 3,336,332 km (0.085 R)
• M7: 4,146,703 km (0.102 R)
• M8: 5,157,087 km (0.086 R)
• M9: 6,160,440 km (0.058 R)
• M10: 6,687,474 km (0.077 R)
• M11: 7,153,321 km (0.079 R)
• M12: 8,027,272 km (0.112 R)
• M13: 8,554,305 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.8

Radius: 9.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.86 AU - 1.32 AU

Year: 772 Days

Day: 10.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 55,455,216 km

• M1: 115,639 km (0.093 R)
• M2: 419,323 km (0.035 R)
• M3: 808,128 km (0.068 R)
• M4: 1,322,744 km (0.03 R)
• M5: 2,017,776 km (0.108 R)
• M6: 2,576,524 km (0.069 R)
• M7: 2,870,185 km (0.102 R)
• M8: 3,959,556 km (0.057 R)
• M9: 5,100,091 km (0.043 R)
• M10: 5,692,049 km (0.118 R)
• M11: 6,061,107 km (0.058 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.1

Radius: 9.8

Gravity: 5.28 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.73 AU - 1.97 AU

Year: 1707 Days

Day: 13.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,455,216 km

• M1: 121,922 km (0.098 R)
• M2: 464,651 km (0.103 R)
• M3: 786,137 km (0.118 R)
• M4: 1,247,945 km (0.113 R)
• M5: 1,583,793 km (0.12 R)
• M6: 2,357,513 km (0.102 R)
• M7: 3,211,866 km (0.097 R)
• M8: 4,833,358 km (0.109 R)
• M9: 7,331,044 km (0.098 R)
• M10: 7,735,407 km (0.048 R)
• M11: 8,326,617 km (0.119 R)
• M12: 10,789,447 km (0.049 R)
• M13: 11,242,579 km (0.065 R)
• M14: 12,449,984 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.8

Radius: 9.5

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.77 AU - 3.47 AU

Year: 3738 Days

Day: 10.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 55,455,216 km

• M1: 119,230 km (0.042 R)
• M2: 528,080 km (0.065 R)
• M3: 926,609 km (0.113 R)
• M4: 1,479,224 km (0.051 R)
• M5: 3,429,830 km (0.067 R)
• M6: 3,919,913 km (0.054 R)
• M7: 5,789,737 km (0.109 R)
• M8: 6,191,407 km (0.103 R)
• M9: 8,605,767 km (0.108 R)
• M10: 9,512,181 km (0.062 R)
• M11: 11,258,736 km (0.084 R)
• M12: 12,458,062 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.8

Radius: 14.1

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.25 AU - 5.31 AU

Year: 7088 Days

Day: 13.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 55,455,216 km

• M1: 175,927 km (0.05 R)
• M2: 705,653 km (0.111 R)
• M3: 2,136,258 km (0.108 R)
• M4: 4,697,822 km (0.119 R)
• M5: 6,950,616 km (0.101 R)
• M6: 9,312,318 km (0.094 R)
• M7: 11,384,548 km (0.049 R)
• M8: 13,296,259 km (0.11 R)
• M9: 15,562,517 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.8

Radius: 6.5

Gravity: 16.33 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 6.46 AU - 9.52 AU

Year: 15318 Days

Day: 21.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 55,455,216 km

• M1: 80,783 km (0.058 R)
• M2: 346,917 km (0.045 R)
• M3: 918,980 km (0.051 R)
• M4: 1,701,227 km (0.025 R)
• M5: 1,907,822 km (0.113 R)
• M6: 2,631,427 km (0.103 R)
• M7: 4,348,062 km (0.05 R)
• M8: 6,087,137 km (0.12 R)
• M9: 6,828,544 km (0.104 R)
• M10: 7,628,444 km (0.101 R)
• M11: 8,147,250 km (0.071 R)
• M12: 11,581,269 km (0.094 R)
• M13: 12,780,894 km (0.105 R)
• M14: 13,310,022 km (0.074 R)
• M15: 14,061,302 km (0.093 R)
• M16: 15,277,383 km (0.109 R)
• M17: 16,717,712 km (0.074 R)
• M18: 20,665,300 km (0.091 R)
• M19: 21,210,285 km (0.081 R)
• M20: 22,710,004 km (0.107 R)
• M21: 23,192,756 km (0.113 R)
• M22: 24,079,124 km (0.118 R)
• M23: 27,960,889 km (0.095 R)
• M24: 28,515,449 km (0.115 R)
• M25: 32,605,155 km (0.085 R)
• M26: 33,467,587 km (0.102 R)
• M27: 35,237,629 km (0.082 R)
• M28: 45,487,776 km (0.085 R)
• M29: 53,380,111 km (0.103 R)
• M30: 59,180,170 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 279.4

Radius: 4.9

Gravity: 11.64 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.81 AU - 10.95 AU

Year: 19485 Days

Day: 21.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,455,216 km

• M1: 60,886 km (0.106 R)
• M2: 219,610 km (0.104 R)
• M3: 574,007 km (0.077 R)
• M4: 1,127,220 km (0.032 R)
• M5: 1,512,135 km (0.103 R)
• M6: 2,395,511 km (0.092 R)
• M7: 3,271,556 km (0.088 R)
• M8: 4,253,516 km (0.032 R)
• M9: 4,526,981 km (0.086 R)
• M10: 11,670,728 km (0.041 R)
• M11: 14,446,517 km (0.062 R)
• M12: 14,856,265 km (0.108 R)
• M13: 30,048,228 km (0.117 R)
• M14: 45,340,272 km (0.114 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 289 - 10,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit