🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 0.76 AU - 0.82 AU

Year: 258 Days

Day: 37.2 Hours

Environment

Temp: 187 °C

Axial Tilt: 43.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.14

Radius: 1.77

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.68 AU - 1.02 AU

Year: 288 Days

Day: 21.4 Hours

Environment

Temp: 77 °C

Axial Tilt: 29.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,840,018 km

• M1: 88,562 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.14 AU - 1.34 AU

Year: 507 Days

Day: 30.3 Hours

Environment

Temp: -4 °C

Axial Tilt: 27.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.4 AU - 1.58 AU

Year: 668 Days

Day: 42.8 Hours

Environment

Temp: -35 °C

Axial Tilt: 14 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,840,018 km

• M1: 31,715 km (0.028 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.26 AU - 2.06 AU

Year: 785 Days

Day: 12.5 Hours

Environment

Temp: -43 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Ice Giant

Semi-Major Axis: 19.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 213

Radius: 3.5

Gravity: 17.39 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 14.91 AU - 24.59 AU

Year: 32220 Days

Day: 16.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,840,018 km

• M1: 43,683 km (0.101 R)
• M2: 385,215 km (0.036 R)
• M3: 552,465 km (0.059 R)
• M4: 756,965 km (0.066 R)
• M5: 950,694 km (0.11 R)
• M6: 1,217,427 km (0.056 R)
• M7: 1,391,111 km (0.034 R)
• M8: 1,515,875 km (0.104 R)
• M9: 1,917,097 km (0.081 R)
• M10: 3,776,897 km (0.09 R)
• M11: 4,275,507 km (0.038 R)
• M12: 6,581,259 km (0.105 R)
• M13: 7,488,121 km (0.068 R)
• M14: 8,578,241 km (0.074 R)
• M15: 9,998,074 km (0.096 R)
• M16: 14,583,698 km (0.104 R)
• M17: 15,798,882 km (0.035 R)
• M18: 16,351,197 km (0.06 R)
• M19: 19,218,090 km (0.066 R)
• M20: 19,575,929 km (0.107 R)
• M21: 21,241,252 km (0.09 R)
• M22: 26,248,592 km (0.107 R)
• M23: 27,246,410 km (0.059 R)
• M24: 30,998,923 km (0.082 R)
• M25: 31,490,950 km (0.075 R)
• M26: 33,899,177 km (0.054 R)
• M27: 37,112,988 km (0.118 R)
• M28: 41,855,240 km (0.086 R)
• M29: 42,305,380 km (0.081 R)
• M30: 42,456,025 km (0.098 R)
• M31: 45,231,365 km (0.062 R)
• M32: 47,471,593 km (0.032 R)
• M33: 55,351,811 km (0.087 R)
• M34: 58,845,968 km (0.114 R)
• M35: 60,742,719 km (0.106 R)
• M36: 61,126,887 km (0.071 R)
• M37: 66,066,608 km (0.117 R)
• M38: 66,880,870 km (0.119 R)
• M39: 68,114,753 km (0.112 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: 391 - 14,609 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit