🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.56 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.87 AU - 1.37 AU

Year: 420 Days

Day: 21.3 Hours

Environment

Temp: 42 °C

Axial Tilt: 9.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.95 AU - 3.23 AU

Year: 1479 Days

Day: 45.3 Hours

Environment

Temp: -78 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 46,737,660 km

• M1: 545,583 km (0.074 R)
• M2: 810,372 km (0.063 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.09 AU - 5.11 AU

Year: 2945 Days

Day: 46.9 Hours

Environment

Temp: -117 °C

Axial Tilt: 46.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 46,737,660 km

• M1: 819,946 km (0.09 R)

Asteroid Belt

Center: 6.42 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 405.4

Radius: 11.9

Gravity: 2.86 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 8.18 AU - 9.28 AU

Year: 9151 Days

Day: 14.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,737,660 km

• M1: 150,047 km (0.109 R)
• M2: 523,443 km (0.113 R)
• M3: 925,263 km (0.103 R)
• M4: 1,481,318 km (0.079 R)
• M5: 2,015,682 km (0.094 R)
• M6: 3,613,985 km (0.071 R)
• M7: 5,130,609 km (0.107 R)
• M8: 5,933,800 km (0.059 R)
• M9: 6,365,988 km (0.048 R)
• M10: 7,108,592 km (0.041 R)
• M11: 8,187,491 km (0.103 R)
• M12: 9,686,013 km (0.117 R)
• M13: 12,186,392 km (0.101 R)
• M14: 12,832,057 km (0.097 R)
• M15: 16,931,337 km (0.043 R)
• M16: 18,216,682 km (0.105 R)
• M17: 23,681,044 km (0.092 R)
• M18: 25,547,128 km (0.109 R)
• M19: 29,858,538 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.1

Radius: 8.7

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 8.7 AU - 11.62 AU

Year: 11489 Days

Day: 10.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,737,660 km

• M1: 134,788 km (0.076 R)
• M2: 584,628 km (0.027 R)
• M3: 1,036,264 km (0.075 R)
• M4: 1,723,667 km (0.109 R)
• M5: 2,394,314 km (0.074 R)
• M6: 2,748,562 km (0.091 R)
• M7: 4,107,359 km (0.096 R)
• M8: 5,329,723 km (0.039 R)
• M9: 6,113,467 km (0.059 R)
• M10: 8,473,822 km (0.049 R)
• M11: 8,926,655 km (0.093 R)
• M12: 9,636,347 km (0.068 R)
• M13: 11,007,561 km (0.092 R)
• M14: 14,640,994 km (0.078 R)
• M15: 25,630,454 km (0.087 R)
• M16: 26,291,377 km (0.045 R)
• M17: 26,963,520 km (0.077 R)
• M18: 27,450,611 km (0.088 R)
• M19: 34,101,134 km (0.106 R)
• M20: 38,223,154 km (0.072 R)

Kuiper Belt

Range: 30.9 - 50.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 18,792 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit