🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.48 AU - 0.54 AU

Year: 235 Days

Day: 38.2 Hours

Environment

Temp: -111 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,905,285 km

• M1: 17,503 km (0.066 R)

Asteroid Belt

Center: 0.77 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.1

Radius: 11.4

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.86 AU - 1.2 AU

Year: 675 Days

Day: 10.9 Hours

Environment

Temp: -170 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,905,285 km

• M1: 141,819 km (0.098 R)
• M2: 497,263 km (0.111 R)
• M3: 1,478,775 km (0.087 R)
• M4: 1,923,978 km (0.068 R)
• M5: 4,538,051 km (0.05 R)
• M6: 4,966,350 km (0.103 R)
• M7: 5,704,316 km (0.104 R)
• M8: 6,109,278 km (0.116 R)
• M9: 6,956,899 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.9

Radius: 8.7

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.87 AU - 1.23 AU

Year: 695 Days

Day: 8.8 Hours

Environment

Temp: -156 °C

Axial Tilt: 148.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,905,285 km

• M1: 108,159 km (0.101 R)
• M2: 390,750 km (0.056 R)
• M3: 842,834 km (0.083 R)
• M4: 1,154,297 km (0.059 R)
• M5: 1,582,596 km (0.118 R)
• M6: 2,041,861 km (0.076 R)
• M7: 2,654,165 km (0.064 R)
• M8: 3,807,715 km (0.104 R)
• M9: 4,980,562 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 957.9

Radius: 12.8

Gravity: 5.85 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.84 AU - 3.08 AU

Year: 3288 Days

Day: 10.1 Hours

Environment

Temp: -210 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 27,905,285 km

• M1: 162,613 km (0.065 R)
• M2: 710,291 km (0.114 R)
• M3: 1,313,769 km (0.114 R)
• M4: 1,908,121 km (0.102 R)
• M5: 2,335,672 km (0.114 R)
• M6: 2,760,380 km (0.047 R)
• M7: 3,236,999 km (0.09 R)
• M8: 4,983,404 km (0.115 R)
• M9: 6,119,750 km (0.089 R)
• M10: 7,000,283 km (0.102 R)
• M11: 9,013,272 km (0.04 R)
• M12: 9,473,884 km (0.089 R)
• M13: 10,112,367 km (0.051 R)
• M14: 11,211,014 km (0.081 R)
• M15: 11,789,509 km (0.119 R)
• M16: 14,202,223 km (0.069 R)
• M17: 17,452,536 km (0.086 R)
• M18: 18,906,328 km (0.08 R)
• M19: 19,919,405 km (0.086 R)
• M20: 21,371,253 km (0.038 R)
• M21: 22,054,017 km (0.087 R)
• M22: 22,540,510 km (0.118 R)
• M23: 24,707,285 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.5

Radius: 14.2

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.87 AU - 4.33 AU

Year: 4410 Days

Day: 9.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,905,285 km

• M1: 176,525 km (0.048 R)
• M2: 742,155 km (0.065 R)
• M3: 1,567,486 km (0.073 R)
• M4: 2,303,807 km (0.105 R)
• M5: 2,825,006 km (0.101 R)
• M6: 3,343,064 km (0.103 R)
• M7: 5,237,272 km (0.084 R)
• M8: 7,095,577 km (0.054 R)
• M9: 7,950,678 km (0.053 R)
• M10: 8,558,195 km (0.054 R)
• M11: 10,932,313 km (0.094 R)
• M12: 12,024,527 km (0.091 R)
• M13: 15,216,198 km (0.109 R)
• M14: 17,507,738 km (0.036 R)
• M15: 18,276,970 km (0.083 R)
• M16: 19,405,237 km (0.033 R)
• M17: 20,720,502 km (0.045 R)
• M18: 23,993,853 km (0.064 R)
• M19: 24,703,545 km (0.103 R)
• M20: 29,708,342 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.2

Radius: 11.6

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 3.58 AU - 3.68 AU

Year: 4466 Days

Day: 8.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,905,285 km

• M1: 144,362 km (0.117 R)
• M2: 658,679 km (0.118 R)
• M3: 1,043,445 km (0.106 R)
• M4: 2,841,911 km (0.065 R)
• M5: 4,501,998 km (0.115 R)
• M6: 6,475,045 km (0.07 R)
• M7: 7,234,104 km (0.047 R)
• M8: 7,688,732 km (0.095 R)
• M9: 11,102,256 km (0.098 R)
• M10: 12,733,920 km (0.062 R)
• M11: 14,193,098 km (0.084 R)
• M12: 18,974,396 km (0.109 R)
• M13: 20,318,981 km (0.099 R)
• M14: 26,500,515 km (0.105 R)
• M15: 27,499,230 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.9

Radius: 6.5

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 8.65 AU - 8.91 AU

Year: 16798 Days

Day: 24.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,905,285 km

• M1: 81,232 km (0.11 R)
• M2: 324,029 km (0.1 R)
• M3: 542,143 km (0.08 R)
• M4: 942,317 km (0.106 R)
• M5: 2,806,905 km (0.112 R)
• M6: 3,793,503 km (0.075 R)
• M7: 4,634,841 km (0.028 R)
• M8: 6,001,268 km (0.099 R)
• M9: 6,616,415 km (0.118 R)
• M10: 7,005,219 km (0.115 R)
• M11: 7,547,213 km (0.059 R)
• M12: 9,024,192 km (0.113 R)
• M13: 11,310,347 km (0.108 R)
• M14: 13,540,552 km (0.112 R)
• M15: 16,631,394 km (0.047 R)
• M16: 19,895,170 km (0.063 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 230 - 17,829 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit