🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502

Radius: 11.7

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.9 AU - 1.2 AU

Year: 695 Days

Day: 11.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,151,367 km

• M1: 145,559 km (0.045 R)
• M2: 514,018 km (0.109 R)
• M3: 972,237 km (0.059 R)
• M4: 1,409,212 km (0.053 R)
• M5: 1,802,355 km (0.079 R)
• M6: 2,337,018 km (0.11 R)
• M7: 2,873,027 km (0.076 R)
• M8: 3,963,446 km (0.101 R)
• M9: 4,494,818 km (0.116 R)
• M10: 5,468,401 km (0.111 R)
• M11: 7,153,770 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.8

Radius: 9

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.48 AU - 2.34 AU

Year: 1704 Days

Day: 8.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 60,151,367 km

• M1: 111,899 km (0.109 R)
• M2: 484,996 km (0.055 R)
• M3: 1,197,830 km (0.051 R)
• M4: 1,521,710 km (0.112 R)
• M5: 2,472,703 km (0.101 R)
• M6: 2,815,731 km (0.047 R)
• M7: 3,453,766 km (0.074 R)
• M8: 3,746,679 km (0.109 R)
• M9: 6,267,852 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.1

Radius: 10.4

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.85 AU - 2.43 AU

Year: 2021 Days

Day: 9.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,151,367 km

• M1: 129,402 km (0.109 R)
• M2: 525,537 km (0.101 R)
• M3: 1,163,273 km (0.084 R)
• M4: 1,736,682 km (0.114 R)
• M5: 2,468,365 km (0.085 R)
• M6: 3,192,269 km (0.12 R)
• M7: 9,082,386 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.3

Radius: 11.2

Gravity: 6.06 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.03 AU - 2.53 AU

Year: 2223 Days

Day: 12.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,151,367 km

• M1: 139,276 km (0.098 R)
• M2: 657,034 km (0.108 R)
• M3: 1,115,402 km (0.058 R)
• M4: 2,088,386 km (0.111 R)
• M5: 2,651,173 km (0.087 R)
• M6: 4,876,741 km (0.05 R)
• M7: 5,241,012 km (0.086 R)
• M8: 6,311,534 km (0.083 R)
• M9: 6,662,341 km (0.109 R)
• M10: 7,285,865 km (0.101 R)
• M11: 7,672,276 km (0.046 R)
• M12: 10,888,930 km (0.069 R)
• M13: 13,008,881 km (0.099 R)
• M14: 13,490,287 km (0.062 R)
• M15: 14,349,877 km (0.095 R)
• M16: 16,430,035 km (0.119 R)
• M17: 16,889,600 km (0.108 R)
• M18: 17,674,689 km (0.096 R)
• M19: 18,211,446 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.6

Radius: 14.4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.34 AU - 5 AU

Year: 5498 Days

Day: 14.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 60,151,367 km

• M1: 179,069 km (0.103 R)
• M2: 794,065 km (0.034 R)
• M3: 1,327,382 km (0.073 R)
• M4: 1,974,243 km (0.102 R)
• M5: 2,938,252 km (0.093 R)
• M6: 5,294,867 km (0.084 R)
• M7: 6,065,446 km (0.052 R)
• M8: 7,831,299 km (0.102 R)
• M9: 8,873,398 km (0.115 R)
• M10: 9,919,087 km (0.102 R)
• M11: 11,423,144 km (0.104 R)
• M12: 12,006,276 km (0.086 R)
• M13: 12,507,429 km (0.118 R)
• M14: 14,040,209 km (0.118 R)
• M15: 15,284,115 km (0.111 R)
• M16: 18,714,843 km (0.073 R)
• M17: 19,185,478 km (0.099 R)
• M18: 19,664,042 km (0.116 R)
• M19: 21,003,242 km (0.116 R)
• M20: 22,028,436 km (0.087 R)
• M21: 25,632,698 km (0.079 R)
• M22: 28,184,837 km (0.104 R)
• M23: 30,715,584 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 735.9

Radius: 3.1

Gravity: 76.58 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.64 AU - 8.74 AU

Year: 12448 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,151,367 km

• M1: 57,146 km (0.099 R)
• M2: 184,454 km (0.076 R)
• M3: 765,941 km (0.107 R)
• M4: 914,941 km (0.083 R)
• M5: 1,024,895 km (0.118 R)
• M6: 1,495,979 km (0.081 R)
• M7: 1,898,846 km (0.115 R)
• M8: 2,309,492 km (0.066 R)
• M9: 2,514,591 km (0.097 R)
• M10: 2,914,167 km (0.065 R)
• M11: 4,304,978 km (0.11 R)
• M12: 4,711,435 km (0.073 R)
• M13: 7,838,031 km (0.1 R)
• M14: 8,586,319 km (0.056 R)
• M15: 10,607,387 km (0.105 R)
• M16: 12,735,117 km (0.113 R)
• M17: 19,096,467 km (0.096 R)
• M18: 23,230,156 km (0.092 R)
• M19: 23,892,874 km (0.078 R)
• M20: 40,330,240 km (0.087 R)
• M21: 41,424,099 km (0.075 R)
• M22: 55,792,975 km (0.118 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 144.6

Radius: 3.8

Gravity: 10.01 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 7.69 AU - 12.19 AU

Year: 20235 Days

Day: 18.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,151,367 km

• M1: 47,273 km (0.073 R)
• M2: 241,152 km (0.104 R)
• M3: 858,243 km (0.112 R)
• M4: 1,731,446 km (0.063 R)
• M5: 2,589,838 km (0.114 R)
• M6: 2,836,974 km (0.104 R)
• M7: 3,985,886 km (0.041 R)
• M8: 5,028,732 km (0.076 R)
• M9: 7,390,135 km (0.068 R)
• M10: 12,116,380 km (0.071 R)
• M11: 14,579,509 km (0.112 R)
• M12: 21,033,012 km (0.115 R)
• M13: 22,111,164 km (0.093 R)
• M14: 23,575,876 km (0.076 R)
• M15: 24,467,031 km (0.102 R)
• M16: 24,647,895 km (0.091 R)
• M17: 28,058,277 km (0.118 R)
• M18: 31,449,063 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281.3

Radius: 4.4

Gravity: 14.53 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 9.18 AU - 11.8 AU

Year: 21937 Days

Day: 16.4 Hours

Environment

Temp: -241 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,151,367 km

• M1: 54,753 km (0.104 R)
• M2: 253,568 km (0.065 R)
• M3: 785,987 km (0.114 R)
• M4: 949,348 km (0.119 R)
• M5: 3,025,318 km (0.08 R)
• M6: 3,872,191 km (0.12 R)
• M7: 4,603,276 km (0.095 R)
• M8: 4,933,588 km (0.089 R)
• M9: 5,139,136 km (0.104 R)
• M10: 5,279,458 km (0.102 R)
• M11: 5,641,336 km (0.03 R)
• M12: 8,263,338 km (0.115 R)
• M13: 10,273,035 km (0.107 R)
• M14: 11,719,796 km (0.118 R)
• M15: 12,649,996 km (0.117 R)
• M16: 13,035,659 km (0.044 R)
• M17: 15,297,429 km (0.101 R)
• M18: 15,588,248 km (0.098 R)
• M19: 17,648,360 km (0.102 R)
• M20: 19,202,233 km (0.087 R)
• M21: 20,403,953 km (0.116 R)
• M22: 27,812,787 km (0.092 R)
• M23: 31,171,708 km (0.098 R)
• M24: 40,452,910 km (0.075 R)
• M25: 56,444,174 km (0.093 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 295 - 18,036 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit