🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 951.6

Radius: 10.3

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.59 AU - 0.81 AU

Year: 397 Days

Day: 6.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 18,863,066 km

• M1: 128,056 km (0.06 R)
• M2: 487,091 km (0.083 R)
• M3: 1,165,068 km (0.112 R)
• M4: 1,581,549 km (0.109 R)
• M5: 1,945,969 km (0.086 R)
• M6: 2,338,514 km (0.1 R)
• M7: 3,203,938 km (0.077 R)
• M8: 3,540,084 km (0.036 R)
• M9: 3,926,495 km (0.065 R)
• M10: 4,970,389 km (0.111 R)
• M11: 5,659,587 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.4

Radius: 14.7

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.76 AU - 0.86 AU

Year: 494 Days

Day: 11.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 18,863,066 km

• M1: 184,903 km (0.119 R)
• M2: 712,086 km (0.072 R)
• M3: 1,472,193 km (0.059 R)
• M4: 2,173,807 km (0.119 R)
• M5: 3,069,748 km (0.088 R)
• M6: 4,300,490 km (0.091 R)
• M7: 4,808,375 km (0.115 R)
• M8: 6,054,675 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295

Radius: 8

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.63 AU - 0.99 AU

Year: 494 Days

Day: 12.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 18,863,066 km

• M1: 99,483 km (0.063 R)
• M2: 440,865 km (0.11 R)
• M3: 767,287 km (0.081 R)
• M4: 1,060,799 km (0.038 R)
• M5: 1,363,435 km (0.065 R)
• M6: 3,159,058 km (0.108 R)
• M7: 3,941,754 km (0.069 R)
• M8: 4,819,146 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.8

Radius: 10.7

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.81 AU - 0.93 AU

Year: 550 Days

Day: 8.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 18,863,066 km

• M1: 199,414 km (0.103 R)
• M2: 747,989 km (0.057 R)
• M3: 1,126,472 km (0.115 R)
• M4: 2,119,054 km (0.102 R)
• M5: 2,650,126 km (0.032 R)
• M6: 3,035,042 km (0.036 R)
• M7: 3,423,398 km (0.099 R)
• M8: 4,248,580 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.4

Radius: 9

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.8 AU - 2.8 AU

Year: 3178 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 18,863,066 km

• M1: 112,049 km (0.117 R)
• M2: 422,913 km (0.12 R)
• M3: 1,016,218 km (0.117 R)
• M4: 1,413,700 km (0.119 R)
• M5: 1,797,867 km (0.076 R)
• M6: 2,096,315 km (0.072 R)
• M7: 2,386,236 km (0.089 R)
• M8: 2,951,267 km (0.117 R)
• M9: 3,440,302 km (0.09 R)
• M10: 4,494,967 km (0.076 R)
• M11: 5,073,612 km (0.113 R)
• M12: 5,904,478 km (0.103 R)
• M13: 7,557,385 km (0.07 R)
• M14: 8,213,970 km (0.104 R)
• M15: 9,217,174 km (0.054 R)
• M16: 12,846,717 km (0.045 R)
• M17: 14,102,890 km (0.09 R)
• M18: 14,904,436 km (0.057 R)
• M19: 16,962,304 km (0.112 R)
• M20: 17,331,661 km (0.104 R)
• M21: 17,706,404 km (0.098 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 335 - 10,727 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit