🌌 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: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.37

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.46 AU - 0.56 AU

Year: 239 Days

Day: 18.9 Hours

Environment

Temp: -124 °C

Axial Tilt: 35.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.48 AU - 0.68 AU

Year: 290 Days

Day: 31.3 Hours

Environment

Temp: -130 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.3

Radius: 8.3

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.64 AU - 0.84 AU

Year: 418 Days

Day: 10.7 Hours

Environment

Temp: -148 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 50,472,856 km

• M1: 103,223 km (0.115 R)
• M2: 481,107 km (0.074 R)
• M3: 918,980 km (0.037 R)
• M4: 1,423,573 km (0.106 R)
• M5: 1,909,467 km (0.1 R)
• M6: 2,183,531 km (0.077 R)
• M7: 2,763,372 km (0.078 R)
• M8: 3,074,386 km (0.12 R)
• M9: 3,532,903 km (0.115 R)
• M10: 4,188,740 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.2

Radius: 12.5

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.03 AU - 1.27 AU

Year: 809 Days

Day: 11.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,472,856 km

• M1: 155,432 km (0.069 R)
• M2: 572,212 km (0.093 R)
• M3: 964,009 km (0.032 R)
• M4: 1,368,372 km (0.074 R)
• M5: 1,934,450 km (0.071 R)
• M6: 2,410,171 km (0.093 R)
• M7: 2,817,825 km (0.119 R)
• M8: 3,908,544 km (0.065 R)
• M9: 4,426,900 km (0.111 R)
• M10: 6,304,802 km (0.119 R)
• M11: 6,754,194 km (0.11 R)
• M12: 7,597,926 km (0.038 R)
• M13: 8,743,696 km (0.076 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 673.6

Radius: 3.8

Gravity: 46.65 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 6.15 AU - 6.87 AU

Year: 10896 Days

Day: 18.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,472,856 km

• M1: 60,438 km (0.061 R)
• M2: 494,571 km (0.101 R)
• M3: 637,137 km (0.115 R)
• M4: 1,239,269 km (0.072 R)
• M5: 1,762,413 km (0.111 R)
• M6: 3,061,520 km (0.055 R)
• M7: 4,000,696 km (0.09 R)
• M8: 5,800,059 km (0.106 R)
• M9: 6,275,182 km (0.091 R)
• M10: 9,142,075 km (0.075 R)
• M11: 10,194,347 km (0.075 R)
• M12: 11,213,707 km (0.073 R)
• M13: 12,065,068 km (0.068 R)
• M14: 12,958,616 km (0.068 R)
• M15: 18,556,569 km (0.118 R)
• M16: 28,672,077 km (0.06 R)
• M17: 34,881,586 km (0.102 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 194 - 17,107 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit