🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 585.8

Radius: 8.2

Gravity: 8.71 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.76 AU - 1.04 AU

Year: 560 Days

Day: 13.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,824,691 km

• M1: 102,175 km (0.117 R)
• M2: 442,361 km (0.082 R)
• M3: 883,076 km (0.092 R)
• M4: 1,211,144 km (0.086 R)
• M5: 1,511,537 km (0.094 R)
• M6: 1,894,807 km (0.112 R)
• M7: 2,173,208 km (0.098 R)
• M8: 2,981,037 km (0.034 R)
• M9: 3,892,836 km (0.039 R)
• M10: 4,648,006 km (0.095 R)
• M11: 6,106,286 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.2

Radius: 9.6

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.85 AU - 1.19 AU

Year: 676 Days

Day: 13.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,824,691 km

• M1: 119,379 km (0.109 R)
• M2: 441,164 km (0.102 R)
• M3: 1,134,251 km (0.08 R)
• M4: 2,130,722 km (0.045 R)
• M5: 2,656,709 km (0.062 R)
• M6: 3,640,315 km (0.113 R)
• M7: 4,240,651 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 110.2

Radius: 13.8

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.5 AU - 1.7 AU

Year: 1328 Days

Day: 5.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,824,691 km

• M1: 171,589 km (0.094 R)
• M2: 679,324 km (0.093 R)
• M3: 1,150,557 km (0.054 R)
• M4: 1,740,122 km (0.09 R)
• M5: 2,334,624 km (0.083 R)
• M6: 2,939,149 km (0.099 R)
• M7: 5,525,248 km (0.12 R)
• M8: 6,188,415 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.5

Radius: 12.4

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.62 AU - 1.62 AU

Year: 1353 Days

Day: 5.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 87,824,691 km

• M1: 159,471 km (0.117 R)
• M2: 628,610 km (0.12 R)
• M3: 1,274,275 km (0.076 R)
• M4: 1,667,867 km (0.114 R)
• M5: 2,399,849 km (0.068 R)
• M6: 4,323,678 km (0.052 R)
• M7: 4,807,477 km (0.043 R)
• M8: 5,944,421 km (0.038 R)
• M9: 6,608,636 km (0.082 R)
• M10: 7,890,091 km (0.118 R)
• M11: 8,693,132 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.5

Radius: 14.7

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.62 AU - 2.2 AU

Year: 1732 Days

Day: 5.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,824,691 km

• M1: 183,108 km (0.054 R)
• M2: 1,324,689 km (0.114 R)
• M3: 1,818,063 km (0.108 R)
• M4: 2,357,962 km (0.089 R)
• M5: 3,322,868 km (0.099 R)
• M6: 4,456,371 km (0.102 R)
• M7: 5,247,744 km (0.055 R)
• M8: 5,858,701 km (0.091 R)
• M9: 6,412,513 km (0.106 R)
• M10: 8,072,899 km (0.083 R)
• M11: 8,632,545 km (0.109 R)
• M12: 9,118,738 km (0.088 R)
• M13: 10,541,863 km (0.068 R)
• M14: 11,325,905 km (0.113 R)
• M15: 12,269,269 km (0.049 R)
• M16: 13,564,787 km (0.12 R)
• M17: 15,652,575 km (0.054 R)
• M18: 16,279,689 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613.4

Radius: 14.6

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 2.66 AU - 2.8 AU

Year: 2959 Days

Day: 7.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 87,824,691 km

• M1: 181,612 km (0.084 R)
• M2: 657,333 km (0.079 R)
• M3: 1,138,141 km (0.116 R)
• M4: 1,614,011 km (0.105 R)
• M5: 2,360,804 km (0.093 R)
• M6: 2,847,296 km (0.077 R)
• M7: 3,888,198 km (0.073 R)
• M8: 4,957,823 km (0.041 R)
• M9: 5,921,981 km (0.109 R)
• M10: 6,407,576 km (0.098 R)
• M11: 7,007,763 km (0.027 R)
• M12: 7,866,454 km (0.08 R)
• M13: 9,392,652 km (0.099 R)
• M14: 9,980,422 km (0.049 R)
• M15: 10,514,786 km (0.045 R)
• M16: 12,233,665 km (0.091 R)
• M17: 13,710,645 km (0.051 R)
• M18: 16,379,770 km (0.118 R)
• M19: 16,963,202 km (0.109 R)
• M20: 18,797,421 km (0.078 R)
• M21: 19,852,086 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 11.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 715.9

Radius: 7.4

Gravity: 13.07 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 9.7 AU - 12.5 AU

Year: 24260 Days

Day: 25 Hours

Environment

Temp: -226 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 87,824,691 km

• M1: 117,285 km (0.036 R)
• M2: 479,012 km (0.067 R)
• M3: 1,118,244 km (0.105 R)
• M4: 1,495,979 km (0.079 R)
• M5: 2,344,348 km (0.085 R)
• M6: 3,360,866 km (0.077 R)
• M7: 3,821,478 km (0.054 R)
• M8: 6,006,953 km (0.119 R)
• M9: 11,323,960 km (0.117 R)
• M10: 11,798,485 km (0.116 R)
• M11: 13,830,174 km (0.091 R)
• M12: 14,138,345 km (0.09 R)
• M13: 14,688,566 km (0.111 R)
• M14: 15,581,965 km (0.117 R)
• M15: 19,713,259 km (0.054 R)
• M16: 23,090,581 km (0.081 R)
• M17: 23,853,530 km (0.092 R)
• M18: 24,408,688 km (0.096 R)
• M19: 27,073,923 km (0.085 R)
• M20: 37,699,561 km (0.105 R)
• M21: 39,678,591 km (0.071 R)
• M22: 44,174,157 km (0.115 R)
• M23: 45,179,754 km (0.025 R)
• M24: 54,927,252 km (0.105 R)
• M25: 60,492,891 km (0.082 R)
• M26: 62,149,538 km (0.031 R)
• M27: 68,854,963 km (0.083 R)
• M28: 69,528,303 km (0.12 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: 398 - 16,392 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit