🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.68 AU - 0.82 AU

Year: 243 Days

Day: 18.3 Hours

Environment

Temp: 139 °C

Axial Tilt: 22.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 4.09 AU - 4.25 AU

Year: 3191 Days

Day: 20.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.86 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.2

Radius: 14.2

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 5.33 AU - 5.77 AU

Year: 4900 Days

Day: 12.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 29,453,891 km

• M1: 176,525 km (0.099 R)
• M2: 751,131 km (0.075 R)
• M3: 1,315,115 km (0.101 R)
• M4: 1,902,436 km (0.106 R)
• M5: 2,647,733 km (0.114 R)
• M6: 3,278,587 km (0.084 R)
• M7: 3,760,442 km (0.115 R)
• M8: 4,893,047 km (0.116 R)
• M9: 5,343,486 km (0.036 R)
• M10: 6,043,604 km (0.106 R)
• M11: 8,270,817 km (0.076 R)
• M12: 9,097,645 km (0.118 R)
• M13: 10,217,983 km (0.035 R)
• M14: 11,000,530 km (0.047 R)
• M15: 12,685,750 km (0.099 R)
• M16: 13,639,137 km (0.11 R)
• M17: 15,001,226 km (0.097 R)
• M18: 17,412,594 km (0.11 R)
• M19: 17,877,394 km (0.046 R)
• M20: 18,650,367 km (0.062 R)
• M21: 19,321,762 km (0.056 R)
• M22: 20,390,938 km (0.03 R)
• M23: 21,169,146 km (0.069 R)
• M24: 22,102,038 km (0.074 R)
• M25: 23,201,433 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.9

Radius: 8.6

Gravity: 12.69 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 4.5 AU - 6.94 AU

Year: 5127 Days

Day: 8.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 29,453,891 km

• M1: 106,962 km (0.093 R)
• M2: 408,552 km (0.097 R)
• M3: 936,183 km (0.069 R)
• M4: 2,002,068 km (0.047 R)
• M5: 2,299,170 km (0.116 R)
• M6: 3,123,155 km (0.093 R)
• M7: 3,614,285 km (0.118 R)
• M8: 4,082,376 km (0.077 R)
• M9: 5,083,036 km (0.083 R)
• M10: 5,982,269 km (0.088 R)
• M11: 6,271,592 km (0.072 R)
• M12: 6,913,516 km (0.032 R)
• M13: 7,524,324 km (0.105 R)
• M14: 8,689,392 km (0.097 R)
• M15: 8,977,817 km (0.12 R)
• M16: 9,792,826 km (0.099 R)
• M17: 19,900,406 km (0.043 R)
• M18: 20,547,268 km (0.077 R)
• M19: 25,811,916 km (0.046 R)
• M20: 27,277,825 km (0.051 R)
• M21: 27,986,620 km (0.034 R)
• M22: 28,981,147 km (0.078 R)
• M23: 29,533,462 km (0.081 R)
• M24: 29,905,662 km (0.093 R)
• M25: 31,813,184 km (0.065 R)
• M26: 32,106,097 km (0.12 R)
• M27: 33,195,768 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 526.6

Radius: 14.2

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.92 AU - 7.06 AU

Year: 5494 Days

Day: 5.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,453,891 km

• M1: 176,675 km (0.114 R)
• M2: 721,361 km (0.116 R)
• M3: 1,247,945 km (0.081 R)
• M4: 1,900,043 km (0.072 R)
• M5: 2,756,490 km (0.11 R)
• M6: 3,663,353 km (0.071 R)
• M7: 4,198,913 km (0.031 R)
• M8: 4,942,115 km (0.054 R)
• M9: 6,158,944 km (0.075 R)
• M10: 6,821,962 km (0.085 R)
• M11: 7,744,083 km (0.104 R)
• M12: 8,479,507 km (0.101 R)
• M13: 9,878,396 km (0.106 R)
• M14: 11,287,459 km (0.1 R)
• M15: 12,577,441 km (0.084 R)
• M16: 13,130,355 km (0.093 R)
• M17: 14,016,872 km (0.109 R)
• M18: 20,470,225 km (0.086 R)
• M19: 26,486,153 km (0.084 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: 212 - 19,332 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit