🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.7

Radius: 12.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.53 AU - 0.79 AU

Year: 364 Days

Day: 6.9 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 18,031,550 km

• M1: 150,645 km (0.065 R)
• M2: 594,053 km (0.097 R)
• M3: 1,172,548 km (0.087 R)
• M4: 1,575,864 km (0.048 R)
• M5: 2,003,714 km (0.07 R)
• M6: 2,798,827 km (0.083 R)
• M7: 3,270,060 km (0.062 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79

Radius: 11.9

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.53 AU - 0.87 AU

Year: 397 Days

Day: 6.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 18,031,550 km

• M1: 148,102 km (0.098 R)
• M2: 596,596 km (0.065 R)
• M3: 1,082,789 km (0.094 R)
• M4: 1,477,728 km (0.057 R)
• M5: 2,484,671 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.3

Radius: 13.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.67 AU - 0.89 AU

Year: 467 Days

Day: 7.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 18,031,550 km

• M1: 171,589 km (0.117 R)
• M2: 720,463 km (0.105 R)
• M3: 1,296,714 km (0.117 R)
• M4: 2,020,469 km (0.057 R)
• M5: 2,456,547 km (0.077 R)
• M6: 3,482,489 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.7

Radius: 8.2

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.86 AU - 1.18 AU

Year: 699 Days

Day: 12.9 Hours

Environment

Temp: -178 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 18,031,550 km

• M1: 102,175 km (0.037 R)
• M2: 527,033 km (0.094 R)
• M3: 892,950 km (0.11 R)
• M4: 1,161,029 km (0.103 R)
• M5: 1,575,415 km (0.118 R)
• M6: 2,029,295 km (0.053 R)
• M7: 2,343,899 km (0.027 R)
• M8: 3,884,458 km (0.061 R)
• M9: 4,309,466 km (0.111 R)
• M10: 4,648,305 km (0.071 R)
• M11: 4,970,090 km (0.107 R)
• M12: 5,361,139 km (0.12 R)
• M13: 7,962,646 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.6

Radius: 13.7

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.29 AU - 3.17 AU

Year: 3059 Days

Day: 12.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 18,031,550 km

• M1: 170,392 km (0.104 R)
• M2: 619,634 km (0.04 R)
• M3: 1,165,966 km (0.047 R)
• M4: 1,754,933 km (0.104 R)
• M5: 2,220,631 km (0.118 R)
• M6: 2,740,184 km (0.038 R)
• M7: 3,256,895 km (0.101 R)
• M8: 4,304,828 km (0.117 R)
• M9: 4,786,982 km (0.079 R)
• M10: 5,494,431 km (0.117 R)
• M11: 7,061,767 km (0.095 R)
• M12: 9,839,351 km (0.108 R)
• M13: 10,643,739 km (0.075 R)
• M14: 11,139,357 km (0.047 R)
• M15: 11,770,510 km (0.052 R)
• M16: 13,365,523 km (0.12 R)
• M17: 14,630,073 km (0.111 R)
• M18: 16,320,978 km (0.087 R)
• M19: 16,827,217 km (0.102 R)
• M20: 17,448,647 km (0.079 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: 498 - 12,062 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit