🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.51 AU - 0.65 AU

Year: 154 Days

Day: 23.5 Hours

Environment

Temp: 204 °C

Axial Tilt: 65.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.9

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.75 AU - 0.93 AU

Year: 268 Days

Day: 26.3 Hours

Environment

Temp: 172 °C

Axial Tilt: 45 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.81 AU - 0.97 AU

Year: 292 Days

Day: 28.8 Hours

Environment

Temp: 140 °C

Axial Tilt: 7.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.01 AU - 1.27 AU

Year: 424 Days

Day: 36.4 Hours

Environment

Temp: 37 °C

Axial Tilt: 3.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 109,197,928 km

• M1: 661,971 km (0.063 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.14 AU - 5.28 AU

Year: 3560 Days

Day: 14.2 Hours

Environment

Temp: -133 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 11.96 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 19.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.5

Radius: 7.1

Gravity: 18.72 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 17.51 AU - 20.89 AU

Year: 29299 Days

Day: 18.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 109,197,928 km

• M1: 116,836 km (0.114 R)
• M2: 974,331 km (0.048 R)
• M3: 1,364,632 km (0.071 R)
• M4: 1,692,850 km (0.105 R)
• M5: 1,918,892 km (0.093 R)
• M6: 2,308,295 km (0.118 R)
• M7: 4,117,233 km (0.059 R)
• M8: 5,011,080 km (0.096 R)
• M9: 5,934,697 km (0.068 R)
• M10: 6,170,463 km (0.108 R)
• M11: 6,510,948 km (0.115 R)
• M12: 8,346,514 km (0.093 R)
• M13: 9,319,499 km (0.106 R)
• M14: 10,298,467 km (0.044 R)
• M15: 13,162,219 km (0.094 R)
• M16: 17,460,764 km (0.111 R)
• M17: 22,044,443 km (0.064 R)
• M18: 27,893,869 km (0.118 R)
• M19: 28,157,760 km (0.06 R)
• M20: 34,094,103 km (0.099 R)
• M21: 34,547,384 km (0.066 R)
• M22: 35,004,855 km (0.091 R)
• M23: 37,352,793 km (0.106 R)
• M24: 39,139,889 km (0.113 R)
• M25: 42,185,852 km (0.087 R)
• M26: 44,123,144 km (0.118 R)
• M27: 44,842,111 km (0.106 R)
• M28: 55,743,159 km (0.114 R)
• M29: 60,028,090 km (0.096 R)
• M30: 62,701,554 km (0.076 R)
• M31: 64,527,396 km (0.12 R)
• M32: 66,859,028 km (0.099 R)
• M33: 67,332,057 km (0.029 R)
• M34: 72,932,852 km (0.119 R)
• M35: 85,884,586 km (0.11 R)
• M36: 93,636,150 km (0.112 R)
• M37: 94,228,258 km (0.112 R)

Kuiper Belt

Range: 31.5 - 51.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 550 - 18,984 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit