🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.5 AU - 0.52 AU

Year: 135 Days

Day: 39.4 Hours

Environment

Temp: 187 °C

Axial Tilt: 0.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.52 AU - 0.56 AU

Year: 147 Days

Day: 12.5 Hours

Environment

Temp: 230 °C

Axial Tilt: 3.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 57,350,311 km

• M1: 301,589 km (0.081 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.55

Radius: 0.79

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.53 AU - 0.65 AU

Year: 168 Days

Day: 45.2 Hours

Environment

Temp: 208 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 57,350,311 km

• M1: 18,401 km (0.109 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.88 AU - 1.16 AU

Year: 382 Days

Day: 20.2 Hours

Environment

Temp: 13 °C

Axial Tilt: 8.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 57,350,311 km

• M1: 22,739 km (0.092 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 3.4 AU - 4.78 AU

Year: 3068 Days

Day: 44.9 Hours

Environment

Temp: -124 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.11 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.4

Radius: 12.3

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 8.78 AU - 11.48 AU

Year: 11957 Days

Day: 13.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,350,311 km

• M1: 153,039 km (0.067 R)
• M2: 782,846 km (0.048 R)
• M3: 2,470,459 km (0.068 R)
• M4: 5,686,514 km (0.099 R)
• M5: 7,363,357 km (0.072 R)
• M6: 8,846,769 km (0.062 R)
• M7: 11,008,309 km (0.045 R)
• M8: 11,988,624 km (0.069 R)
• M9: 12,814,105 km (0.078 R)
• M10: 13,327,375 km (0.053 R)
• M11: 16,449,483 km (0.117 R)
• M12: 17,261,650 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133

Radius: 7.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 17.58 AU - 19.58 AU

Year: 29701 Days

Day: 23.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 57,350,311 km

• M1: 97,089 km (0.112 R)
• M2: 419,921 km (0.086 R)
• M3: 698,323 km (0.089 R)
• M4: 949,348 km (0.106 R)
• M5: 1,340,397 km (0.109 R)
• M6: 2,327,444 km (0.119 R)
• M7: 2,636,812 km (0.07 R)
• M8: 5,633,557 km (0.106 R)
• M9: 8,476,814 km (0.1 R)
• M10: 8,913,490 km (0.099 R)
• M11: 9,416,139 km (0.103 R)
• M12: 15,892,829 km (0.084 R)
• M13: 16,858,184 km (0.112 R)
• M14: 17,162,915 km (0.085 R)
• M15: 22,096,054 km (0.079 R)
• M16: 31,549,293 km (0.093 R)
• M17: 34,886,672 km (0.066 R)
• M18: 36,895,772 km (0.076 R)
• M19: 46,149,148 km (0.118 R)
• M20: 52,999,683 km (0.071 R)
• M21: 55,146,263 km (0.113 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 498 - 16,992 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit