🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.49 AU - 0.73 AU

Year: 313 Days

Day: 14.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 24.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.65 AU - 0.69 AU

Year: 360 Days

Day: 29.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 465.2

Radius: 13.8

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.61 AU - 0.89 AU

Year: 426 Days

Day: 12.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,717,297 km

• M1: 171,589 km (0.096 R)
• M2: 700,716 km (0.07 R)
• M3: 1,156,092 km (0.092 R)
• M4: 1,639,293 km (0.055 R)
• M5: 2,326,845 km (0.096 R)
• M6: 3,022,625 km (0.09 R)
• M7: 3,522,880 km (0.095 R)
• M8: 4,040,339 km (0.102 R)
• M9: 4,664,013 km (0.045 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.1

Radius: 8.8

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 3.71 AU - 3.75 AU

Year: 4726 Days

Day: 13.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 49,717,297 km

• M1: 109,506 km (0.098 R)
• M2: 450,888 km (0.071 R)
• M3: 824,733 km (0.107 R)
• M4: 1,175,989 km (0.076 R)
• M5: 1,626,428 km (0.1 R)
• M6: 2,188,766 km (0.116 R)
• M7: 2,687,227 km (0.067 R)
• M8: 3,183,742 km (0.086 R)
• M9: 4,313,655 km (0.06 R)
• M10: 4,944,509 km (0.051 R)
• M11: 5,497,871 km (0.084 R)
• M12: 7,816,190 km (0.065 R)
• M13: 9,171,247 km (0.089 R)
• M14: 9,884,231 km (0.063 R)
• M15: 10,337,811 km (0.06 R)
• M16: 11,420,601 km (0.08 R)
• M17: 12,339,730 km (0.098 R)
• M18: 12,914,335 km (0.087 R)
• M19: 13,708,251 km (0.108 R)
• M20: 14,799,119 km (0.059 R)
• M21: 15,613,081 km (0.115 R)
• M22: 16,342,371 km (0.061 R)
• M23: 19,487,815 km (0.054 R)
• M24: 20,399,166 km (0.106 R)
• M25: 20,731,423 km (0.031 R)
• M26: 21,134,888 km (0.103 R)
• M27: 22,872,617 km (0.08 R)
• M28: 25,005,284 km (0.112 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 643.8

Radius: 3.2

Gravity: 62.87 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.02 AU - 7 AU

Year: 10896 Days

Day: 19.4 Hours

Environment

Temp: -228 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 49,717,297 km

• M1: 39,793 km (0.062 R)
• M2: 141,520 km (0.086 R)
• M3: 243,246 km (0.067 R)
• M4: 380,577 km (0.084 R)
• M5: 561,590 km (0.12 R)
• M6: 752,627 km (0.117 R)
• M7: 923,019 km (0.078 R)
• M8: 1,214,136 km (0.114 R)
• M9: 1,367,773 km (0.086 R)
• M10: 1,857,706 km (0.087 R)
• M11: 2,044,405 km (0.09 R)
• M12: 5,066,880 km (0.113 R)
• M13: 5,431,300 km (0.099 R)
• M14: 5,707,159 km (0.087 R)
• M15: 6,028,645 km (0.042 R)
• M16: 6,629,579 km (0.107 R)
• M17: 7,146,440 km (0.112 R)
• M18: 7,269,409 km (0.115 R)
• M19: 9,143,272 km (0.104 R)
• M20: 9,833,068 km (0.063 R)
• M21: 10,986,168 km (0.119 R)
• M22: 11,879,268 km (0.114 R)
• M23: 13,682,520 km (0.077 R)
• M24: 13,999,668 km (0.057 R)
• M25: 14,386,827 km (0.073 R)
• M26: 18,198,282 km (0.085 R)
• M27: 19,845,654 km (0.117 R)
• M28: 21,334,601 km (0.109 R)
• M29: 24,532,704 km (0.103 R)
• M30: 25,665,908 km (0.107 R)
• M31: 26,440,526 km (0.115 R)
• M32: 27,330,334 km (0.056 R)
• M33: 29,065,221 km (0.114 R)
• M34: 30,012,774 km (0.099 R)
• M35: 30,548,035 km (0.105 R)
• M36: 33,548,519 km (0.107 R)
• M37: 37,598,882 km (0.072 R)
• M38: 40,776,640 km (0.114 R)
• M39: 42,632,102 km (0.115 R)
• M40: 48,534,486 km (0.104 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 373 - 18,017 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit