🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.5

Radius: 9.9

Gravity: 7.3 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.79 AU - 1.13 AU

Year: 617 Days

Day: 12.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,453,207 km

• M1: 123,119 km (0.102 R)
• M2: 546,182 km (0.036 R)
• M3: 1,197,980 km (0.11 R)
• M4: 1,649,765 km (0.086 R)
• M5: 2,072,529 km (0.116 R)
• M6: 3,723,341 km (0.085 R)
• M7: 4,093,596 km (0.114 R)
• M8: 4,519,651 km (0.118 R)
• M9: 5,515,225 km (0.092 R)
• M10: 5,865,284 km (0.083 R)
• M11: 6,408,025 km (0.113 R)
• M12: 6,753,745 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.9

Radius: 13.1

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.92 AU - 1.48 AU

Year: 862 Days

Day: 14.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 39,453,207 km

• M1: 162,912 km (0.101 R)
• M2: 586,274 km (0.087 R)
• M3: 999,613 km (0.106 R)
• M4: 1,509,293 km (0.105 R)
• M5: 1,946,867 km (0.083 R)
• M6: 2,356,466 km (0.087 R)
• M7: 3,727,231 km (0.095 R)
• M8: 4,225,392 km (0.085 R)
• M9: 4,707,097 km (0.098 R)
• M10: 5,764,604 km (0.087 R)
• M11: 6,174,802 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.5

Radius: 13.7

Gravity: 0.08 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.51 AU - 1.67 AU

Year: 1315 Days

Day: 10 Hours

Environment

Temp: -174 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 39,453,207 km

• M1: 173,085 km (0.109 R)
• M2: 667,057 km (0.109 R)
• M3: 1,425,967 km (0.111 R)
• M4: 2,016,430 km (0.073 R)
• M5: 3,466,482 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.2

Radius: 10.3

Gravity: 0.24 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.9 AU - 1.92 AU

Year: 1732 Days

Day: 5.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 39,453,207 km

• M1: 128,056 km (0.104 R)
• M2: 900,579 km (0.093 R)
• M3: 1,566,140 km (0.104 R)
• M4: 2,997,941 km (0.116 R)
• M5: 4,641,274 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.5

Radius: 14.3

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.37 AU - 3.07 AU

Year: 2943 Days

Day: 14.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 39,453,207 km

• M1: 177,872 km (0.108 R)
• M2: 845,378 km (0.106 R)
• M3: 2,290,493 km (0.066 R)
• M4: 2,860,610 km (0.098 R)
• M5: 6,818,821 km (0.113 R)
• M6: 8,372,095 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.7

Radius: 9.3

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.94 AU - 4.58 AU

Year: 4783 Days

Day: 14.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,453,207 km

• M1: 116,088 km (0.115 R)
• M2: 628,610 km (0.07 R)
• M3: 1,119,291 km (0.099 R)
• M4: 1,786,947 km (0.083 R)
• M5: 2,436,351 km (0.064 R)
• M6: 3,840,327 km (0.077 R)
• M7: 4,199,362 km (0.113 R)
• M8: 5,865,583 km (0.077 R)
• M9: 7,490,964 km (0.106 R)
• M10: 8,391,992 km (0.114 R)
• M11: 9,196,529 km (0.097 R)
• M12: 10,086,786 km (0.114 R)
• M13: 11,374,674 km (0.081 R)
• M14: 11,998,647 km (0.067 R)
• M15: 12,768,926 km (0.049 R)
• M16: 13,832,268 km (0.12 R)
• M17: 14,724,619 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.4

Radius: 9.9

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.63 AU - 5.29 AU

Year: 7247 Days

Day: 9.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 39,453,207 km

• M1: 123,568 km (0.05 R)
• M2: 577,149 km (0.108 R)
• M3: 1,306,139 km (0.079 R)
• M4: 1,615,059 km (0.092 R)
• M5: 2,281,218 km (0.109 R)
• M6: 3,707,035 km (0.079 R)
• M7: 4,180,512 km (0.032 R)
• M8: 5,621,439 km (0.116 R)
• M9: 6,316,172 km (0.044 R)
• M10: 7,104,403 km (0.064 R)
• M11: 10,146,027 km (0.115 R)
• M12: 14,741,973 km (0.086 R)
• M13: 21,650,253 km (0.117 R)
• M14: 34,919,883 km (0.12 R)
• M15: 35,907,678 km (0.051 R)
• M16: 36,352,731 km (0.084 R)
• M17: 38,749,439 km (0.11 R)
• M18: 39,100,246 km (0.091 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 15,724 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit