🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575.3

Radius: 13.6

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.54 AU - 0.9 AU

Year: 394 Days

Day: 12.3 Hours

Environment

Temp: -134 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,889,892 km

• M1: 169,195 km (0.117 R)
• M2: 607,068 km (0.043 R)
• M3: 1,103,434 km (0.085 R)
• M4: 1,674,000 km (0.09 R)
• M5: 2,520,724 km (0.078 R)
• M6: 3,058,379 km (0.118 R)
• M7: 3,744,285 km (0.086 R)
• M8: 4,421,814 km (0.052 R)
• M9: 4,884,071 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707

Radius: 11

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.7 AU - 0.88 AU

Year: 453 Days

Day: 10.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,889,892 km

• M1: 138,228 km (0.048 R)
• M2: 493,972 km (0.075 R)
• M3: 867,219 km (0.087 R)
• M4: 1,228,797 km (0.082 R)
• M5: 1,760,318 km (0.085 R)
• M6: 2,123,841 km (0.114 R)
• M7: 2,769,954 km (0.068 R)
• M8: 3,384,951 km (0.087 R)
• M9: 3,980,650 km (0.034 R)
• M10: 4,659,974 km (0.083 R)
• M11: 5,091,115 km (0.109 R)
• M12: 5,582,245 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.2

Radius: 9.6

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.1 AU - 1.22 AU

Year: 807 Days

Day: 5.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 40,889,892 km

• M1: 119,379 km (0.103 R)
• M2: 823,835 km (0.102 R)
• M3: 1,188,106 km (0.113 R)
• M4: 1,497,026 km (0.068 R)
• M5: 1,836,314 km (0.065 R)
• M6: 2,182,035 km (0.094 R)
• M7: 2,551,392 km (0.113 R)
• M8: 3,052,096 km (0.097 R)
• M9: 3,380,762 km (0.119 R)
• M10: 4,423,609 km (0.038 R)
• M11: 5,328,676 km (0.066 R)
• M12: 5,667,964 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.4

Radius: 12.6

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.18 AU - 1.58 AU

Year: 1047 Days

Day: 5.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,889,892 km

• M1: 156,629 km (0.054 R)
• M2: 629,059 km (0.109 R)
• M3: 1,058,405 km (0.026 R)
• M4: 1,541,307 km (0.112 R)
• M5: 2,821,266 km (0.115 R)
• M6: 3,428,484 km (0.095 R)
• M7: 4,349,109 km (0.047 R)
• M8: 5,004,049 km (0.109 R)
• M9: 5,680,979 km (0.111 R)
• M10: 6,279,520 km (0.109 R)
• M11: 7,447,431 km (0.084 R)
• M12: 7,975,062 km (0.119 R)
• M13: 9,164,216 km (0.088 R)
• M14: 10,371,321 km (0.108 R)
• M15: 11,267,263 km (0.057 R)
• M16: 11,928,186 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.5

Radius: 10.1

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.74 AU - 3.74 AU

Year: 3766 Days

Day: 8.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 40,889,892 km

• M1: 125,662 km (0.082 R)
• M2: 475,871 km (0.073 R)
• M3: 962,812 km (0.052 R)
• M4: 1,281,755 km (0.114 R)
• M5: 2,363,497 km (0.092 R)
• M6: 2,790,000 km (0.117 R)
• M7: 4,326,071 km (0.11 R)
• M8: 4,682,264 km (0.115 R)
• M9: 5,746,054 km (0.111 R)
• M10: 6,177,494 km (0.089 R)
• M11: 8,061,680 km (0.081 R)
• M12: 8,800,244 km (0.038 R)
• M13: 9,583,240 km (0.076 R)
• M14: 11,405,491 km (0.1 R)
• M15: 12,294,551 km (0.106 R)
• M16: 15,239,385 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 324.4

Radius: 4.6

Gravity: 15.33 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 6.6 AU - 7 AU

Year: 11449 Days

Day: 21.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 106.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 40,889,892 km

• M1: 57,146 km (0.062 R)
• M2: 742,305 km (0.034 R)
• M3: 1,994,289 km (0.106 R)
• M4: 3,559,233 km (0.06 R)
• M5: 3,728,727 km (0.109 R)
• M6: 4,601,331 km (0.08 R)
• M7: 4,890,654 km (0.07 R)
• M8: 5,634,604 km (0.117 R)
• M9: 6,309,889 km (0.12 R)
• M10: 7,982,991 km (0.107 R)
• M11: 8,231,922 km (0.103 R)
• M12: 11,014,143 km (0.067 R)
• M13: 12,011,213 km (0.088 R)
• M14: 14,365,136 km (0.112 R)
• M15: 17,283,491 km (0.075 R)
• M16: 18,844,245 km (0.106 R)
• M17: 18,990,702 km (0.044 R)
• M18: 21,999,414 km (0.093 R)
• M19: 25,668,302 km (0.109 R)
• M20: 25,938,625 km (0.098 R)
• M21: 26,393,104 km (0.093 R)
• M22: 27,978,542 km (0.032 R)
• M23: 31,543,160 km (0.114 R)
• M24: 37,670,988 km (0.109 R)
• M25: 40,159,249 km (0.087 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 189 - 11,981 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit