🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.2

Radius: 13.9

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.68 AU - 0.78 AU

Year: 423 Days

Day: 11.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 43,889,586 km

• M1: 172,935 km (0.043 R)
• M2: 618,737 km (0.038 R)
• M3: 1,382,733 km (0.112 R)
• M4: 1,960,330 km (0.075 R)
• M5: 2,738,389 km (0.1 R)
• M6: 3,381,660 km (0.081 R)
• M7: 3,909,292 km (0.083 R)
• M8: 5,099,791 km (0.086 R)
• M9: 6,278,473 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.2

Radius: 10.4

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.91 AU - 1.31 AU

Year: 793 Days

Day: 10.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,889,586 km

• M1: 129,402 km (0.072 R)
• M2: 458,218 km (0.111 R)
• M3: 1,004,699 km (0.066 R)
• M4: 1,332,767 km (0.072 R)
• M5: 1,881,193 km (0.111 R)
• M6: 2,287,651 km (0.049 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.5

Radius: 13

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.48 AU - 1.88 AU

Year: 1477 Days

Day: 9.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,889,586 km

• M1: 164,258 km (0.095 R)
• M2: 657,333 km (0.114 R)
• M3: 1,078,750 km (0.047 R)
• M4: 2,239,779 km (0.106 R)
• M5: 3,473,663 km (0.088 R)
• M6: 3,905,701 km (0.1 R)
• M7: 4,753,921 km (0.089 R)
• M8: 6,861,905 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 57.8

Radius: 12.6

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.52 AU - 3.88 AU

Year: 3883 Days

Day: 11.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,889,586 km

• M1: 169,794 km (0.098 R)
• M2: 586,424 km (0.063 R)
• M3: 2,773,245 km (0.039 R)
• M4: 3,924,551 km (0.103 R)
• M5: 5,173,693 km (0.043 R)
• M6: 6,441,984 km (0.091 R)
• M7: 10,861,254 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.2

Radius: 14.6

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 2.57 AU - 4.21 AU

Year: 4233 Days

Day: 10 Hours

Environment

Temp: -206 °C

Axial Tilt: 73.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,889,586 km

• M1: 181,612 km (0.096 R)
• M2: 859,739 km (0.056 R)
• M3: 1,405,771 km (0.112 R)
• M4: 1,866,533 km (0.099 R)
• M5: 2,527,306 km (0.115 R)
• M6: 3,223,385 km (0.086 R)
• M7: 4,253,815 km (0.09 R)
• M8: 4,718,616 km (0.043 R)
• M9: 5,550,530 km (0.115 R)
• M10: 6,384,388 km (0.071 R)
• M11: 7,029,903 km (0.118 R)
• M12: 8,116,881 km (0.057 R)
• M13: 10,017,223 km (0.118 R)
• M14: 10,801,415 km (0.075 R)
• M15: 11,673,122 km (0.055 R)
• M16: 15,238,787 km (0.055 R)
• M17: 16,276,847 km (0.102 R)
• M18: 20,836,141 km (0.069 R)
• M19: 22,406,021 km (0.11 R)
• M20: 22,921,685 km (0.083 R)
• M21: 24,130,286 km (0.077 R)
• M22: 24,672,130 km (0.038 R)
• M23: 28,782,630 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.7

Radius: 13.8

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.98 AU - 6.14 AU

Year: 7720 Days

Day: 14 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 43,889,586 km

• M1: 175,628 km (0.075 R)
• M2: 696,378 km (0.12 R)
• M3: 1,534,276 km (0.119 R)
• M4: 1,979,329 km (0.062 R)
• M5: 2,823,510 km (0.066 R)
• M6: 3,459,900 km (0.101 R)
• M7: 6,628,532 km (0.052 R)
• M8: 8,761,648 km (0.105 R)
• M9: 10,030,687 km (0.073 R)
• M10: 11,269,656 km (0.087 R)
• M11: 12,133,434 km (0.096 R)
• M12: 13,095,648 km (0.048 R)
• M13: 14,108,126 km (0.051 R)
• M14: 22,472,891 km (0.053 R)
• M15: 25,521,247 km (0.087 R)
• M16: 31,329,384 km (0.074 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230.1

Radius: 5.2

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.1 AU - 8.74 AU

Year: 15117 Days

Day: 17.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 43,889,586 km

• M1: 64,925 km (0.072 R)
• M2: 531,372 km (0.115 R)
• M3: 1,833,172 km (0.113 R)
• M4: 2,320,712 km (0.11 R)
• M5: 2,585,201 km (0.114 R)
• M6: 3,063,016 km (0.097 R)
• M7: 3,874,734 km (0.112 R)
• M8: 4,220,156 km (0.056 R)
• M9: 5,157,686 km (0.069 R)
• M10: 12,779,099 km (0.069 R)
• M11: 13,364,027 km (0.065 R)
• M12: 14,968,165 km (0.113 R)
• M13: 19,455,053 km (0.06 R)
• M14: 19,762,028 km (0.116 R)
• M15: 23,528,005 km (0.12 R)
• M16: 25,670,546 km (0.103 R)
• M17: 31,588,937 km (0.058 R)
• M18: 43,496,329 km (0.036 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 18,821 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit