🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.43 AU - 0.61 AU

Year: 242 Days

Day: 29.5 Hours

Environment

Temp: -110 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,323,777 km

• M1: 44,431 km (0.069 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.5

Radius: 11.6

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.59 AU - 0.97 AU

Year: 445 Days

Day: 8.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,323,777 km

• M1: 144,362 km (0.095 R)
• M2: 516,262 km (0.051 R)
• M3: 1,553,873 km (0.116 R)
• M4: 2,360,355 km (0.088 R)
• M5: 2,752,002 km (0.09 R)
• M6: 3,236,400 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.5

Radius: 11.8

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.36 AU - 1.94 AU

Year: 1368 Days

Day: 13.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,323,777 km

• M1: 148,251 km (0.072 R)
• M2: 543,788 km (0.105 R)
• M3: 951,742 km (0.078 R)
• M4: 1,338,901 km (0.113 R)
• M5: 1,906,774 km (0.108 R)
• M6: 2,565,304 km (0.115 R)
• M7: 3,323,616 km (0.074 R)
• M8: 4,097,785 km (0.065 R)
• M9: 5,113,854 km (0.111 R)
• M10: 5,726,756 km (0.05 R)
• M11: 6,788,452 km (0.116 R)
• M12: 7,529,710 km (0.104 R)
• M13: 8,236,560 km (0.087 R)
• M14: 9,426,760 km (0.099 R)
• M15: 13,239,112 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.6

Radius: 14.6

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.82 AU - 2.74 AU

Year: 2223 Days

Day: 15 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,323,777 km

• M1: 182,210 km (0.088 R)
• M2: 743,651 km (0.108 R)
• M3: 1,251,237 km (0.073 R)
• M4: 1,876,556 km (0.076 R)
• M5: 2,865,846 km (0.059 R)
• M6: 3,564,319 km (0.091 R)
• M7: 6,061,407 km (0.086 R)
• M8: 7,387,292 km (0.096 R)
• M9: 9,257,266 km (0.101 R)
• M10: 11,772,455 km (0.092 R)
• M11: 12,895,935 km (0.078 R)
• M12: 14,354,963 km (0.052 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 136.7

Radius: 6.4

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 6.76 AU - 7.58 AU

Year: 12396 Days

Day: 17.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,323,777 km

• M1: 79,736 km (0.103 R)
• M2: 357,389 km (0.034 R)
• M3: 620,532 km (0.109 R)
• M4: 1,281,007 km (0.066 R)
• M5: 1,571,526 km (0.103 R)
• M6: 1,793,678 km (0.082 R)
• M7: 4,110,052 km (0.103 R)
• M8: 4,989,538 km (0.118 R)
• M9: 5,864,386 km (0.069 R)
• M10: 6,241,522 km (0.113 R)
• M11: 8,413,833 km (0.116 R)
• M12: 8,812,661 km (0.065 R)
• M13: 10,040,261 km (0.087 R)
• M14: 11,139,357 km (0.035 R)
• M15: 12,674,680 km (0.112 R)
• M16: 13,682,670 km (0.115 R)
• M17: 16,712,775 km (0.115 R)
• M18: 19,603,305 km (0.119 R)
• M19: 23,429,271 km (0.062 R)
• M20: 23,663,990 km (0.117 R)
• M21: 24,538,389 km (0.097 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: 232 - 15,930 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit