🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.62 AU - 0.9 AU

Year: 248 Days

Day: 31.9 Hours

Environment

Temp: 140 °C

Axial Tilt: 25.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 56,892,070 km

• M1: 100,081 km (0.097 R)
• M2: 131,945 km (0.037 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.78 AU - 0.9 AU

Year: 289 Days

Day: 47.2 Hours

Environment

Temp: 113 °C

Axial Tilt: 39 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.03

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.24 AU - 1.46 AU

Year: 588 Days

Day: 12.1 Hours

Environment

Temp: -33 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.77

Radius: 1.26

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.3 AU - 1.56 AU

Year: 641 Days

Day: 42.7 Hours

Environment

Temp: -35 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 56,892,070 km

• M1: 334,650 km (0.117 R)
• M2: 408,402 km (0.074 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.58 AU - 2.08 AU

Year: 928 Days

Day: 34.2 Hours

Environment

Temp: -70 °C

Axial Tilt: 11.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.9

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 2.46 AU - 3.5 AU

Year: 1928 Days

Day: 27.8 Hours

Environment

Temp: -102 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Ice Giant

Semi-Major Axis: 12.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 415.6

Radius: 5

Gravity: 16.62 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 10.58 AU - 14.46 AU

Year: 16601 Days

Day: 24.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 56,892,070 km

• M1: 103,671 km (0.055 R)
• M2: 269,725 km (0.077 R)
• M3: 809,175 km (0.098 R)
• M4: 1,004,550 km (0.074 R)
• M5: 1,296,415 km (0.097 R)
• M6: 1,722,619 km (0.112 R)
• M7: 1,977,235 km (0.046 R)
• M8: 2,256,684 km (0.104 R)
• M9: 6,707,370 km (0.039 R)
• M10: 8,145,454 km (0.096 R)
• M11: 9,211,190 km (0.065 R)
• M12: 10,922,589 km (0.054 R)
• M13: 13,088,767 km (0.085 R)
• M14: 17,078,093 km (0.06 R)
• M15: 18,569,434 km (0.106 R)
• M16: 20,488,326 km (0.103 R)
• M17: 21,808,527 km (0.109 R)
• M18: 25,206,643 km (0.078 R)
• M19: 28,294,941 km (0.087 R)
• M20: 34,107,716 km (0.059 R)
• M21: 40,804,465 km (0.097 R)
• M22: 44,459,440 km (0.093 R)
• M23: 50,184,700 km (0.115 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 12,811 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit