🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.48 AU - 0.72 AU

Year: 169 Days

Day: 24.8 Hours

Environment

Temp: 164 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.76 AU - 1.26 AU

Year: 369 Days

Day: 15.1 Hours

Environment

Temp: 22 °C

Axial Tilt: 17.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.32

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 1.18 AU - 1.58 AU

Year: 589 Days

Day: 33.5 Hours

Environment

Temp: -4 °C

Axial Tilt: 39.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.32 AU - 1.44 AU

Year: 589 Days

Day: 13 Hours

Environment

Temp: -19 °C

Axial Tilt: 34.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.92 AU - 2.68 AU

Year: 1268 Days

Day: 28 Hours

Environment

Temp: -69 °C

Axial Tilt: 68.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,894,810 km

• M1: 1,305,690 km (0.058 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.02

Radius: 1.01

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.43 AU - 2.77 AU

Year: 1524 Days

Day: 37.8 Hours

Environment

Temp: -96 °C

Axial Tilt: 42.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,894,810 km

• M1: 315,951 km (0.055 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.41 AU - 3.47 AU

Year: 1832 Days

Day: 27.1 Hours

Environment

Temp: -108 °C

Axial Tilt: 70.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.73

Radius: 1.25

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 4.04 AU - 4.08 AU

Year: 2973 Days

Day: 12.1 Hours

Environment

Temp: -115 °C

Axial Tilt: 17.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.7

Radius: 12

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 4.28 AU - 5.6 AU

Year: 3990 Days

Day: 7.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,894,810 km

• M1: 149,598 km (0.093 R)
• M2: 811,120 km (0.049 R)
• M3: 1,232,088 km (0.108 R)
• M4: 2,454,901 km (0.098 R)
• M5: 3,725,436 km (0.075 R)
• M6: 9,757,820 km (0.048 R)
• M7: 10,255,383 km (0.066 R)
• M8: 12,865,566 km (0.115 R)
• M9: 13,652,302 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.1

Radius: 3.4

Gravity: 33.57 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 13.42 AU - 21 AU

Year: 25948 Days

Day: 22.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 74,894,810 km

• M1: 44,281 km (0.081 R)
• M2: 486,193 km (0.059 R)
• M3: 659,278 km (0.105 R)
• M4: 775,815 km (0.083 R)
• M5: 989,141 km (0.065 R)
• M6: 1,184,067 km (0.107 R)
• M7: 1,499,270 km (0.106 R)
• M8: 2,124,589 km (0.106 R)
• M9: 2,635,615 km (0.033 R)
• M10: 2,756,790 km (0.094 R)
• M11: 6,638,406 km (0.099 R)
• M12: 6,817,773 km (0.101 R)
• M13: 8,064,372 km (0.111 R)
• M14: 9,011,327 km (0.094 R)
• M15: 11,060,369 km (0.08 R)
• M16: 13,831,670 km (0.058 R)
• M17: 14,951,110 km (0.103 R)
• M18: 16,372,589 km (0.111 R)
• M19: 19,027,652 km (0.035 R)
• M20: 20,789,018 km (0.102 R)
• M21: 25,062,131 km (0.108 R)
• M22: 27,059,861 km (0.12 R)
• M23: 29,161,263 km (0.055 R)
• M24: 29,401,218 km (0.062 R)
• M25: 32,256,442 km (0.042 R)
• M26: 34,081,985 km (0.085 R)
• M27: 34,348,270 km (0.089 R)
• M28: 40,265,613 km (0.069 R)
• M29: 42,687,453 km (0.032 R)
• M30: 44,884,747 km (0.114 R)
• M31: 47,985,611 km (0.069 R)
• M32: 49,163,096 km (0.115 R)
• M33: 52,279,220 km (0.096 R)
• M34: 54,791,866 km (0.096 R)
• M35: 55,340,591 km (0.085 R)
• M36: 57,008,757 km (0.059 R)
• M37: 57,383,948 km (0.051 R)
• M38: 61,226,818 km (0.072 R)
• M39: 64,016,519 km (0.115 R)
• M40: 66,889,846 km (0.043 R)
• M41: 74,000,232 km (0.068 R)

Kuiper Belt

Range: 30.2 - 52.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 18,241 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit