🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.41 AU - 0.69 AU

Year: 149 Days

Day: 37.2 Hours

Environment

Temp: 189 °C

Axial Tilt: 47.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.51 AU - 0.61 AU

Year: 153 Days

Day: 13.6 Hours

Environment

Temp: 202 °C

Axial Tilt: 0.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.64 AU - 0.86 AU

Year: 237 Days

Day: 48 Hours

Environment

Temp: 193 °C

Axial Tilt: 20.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,350,700 km

• M1: 390,002 km (0.042 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.06

Radius: 1.56

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.71 AU - 0.85 AU

Year: 252 Days

Day: 30.9 Hours

Environment

Temp: 131 °C

Axial Tilt: 10.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.83 AU - 1.03 AU

Year: 328 Days

Day: 44.6 Hours

Environment

Temp: 112 °C

Axial Tilt: 49.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 71,350,700 km

• M1: 232,774 km (0.112 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.15 AU - 1.53 AU

Year: 567 Days

Day: 29.2 Hours

Environment

Temp: 7 °C

Axial Tilt: 36.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.09

Radius: 1.04

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.45 AU - 2.69 AU

Year: 1505 Days

Day: 37.1 Hours

Environment

Temp: -86 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.78

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.01 AU - 3.29 AU

Year: 2042 Days

Day: 40.8 Hours

Environment

Temp: -104 °C

Axial Tilt: 7.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 11.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.9

Radius: 13.7

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 10.59 AU - 12.41 AU

Year: 14244 Days

Day: 10.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 71,350,700 km

• M1: 171,290 km (0.116 R)
• M2: 777,311 km (0.116 R)
• M3: 1,390,363 km (0.081 R)
• M4: 2,356,166 km (0.053 R)
• M5: 3,238,345 km (0.096 R)
• M6: 4,050,512 km (0.068 R)
• M7: 4,745,693 km (0.082 R)
• M8: 5,187,157 km (0.102 R)
• M9: 5,621,738 km (0.118 R)
• M10: 6,080,705 km (0.089 R)
• M11: 7,195,807 km (0.094 R)
• M12: 7,781,034 km (0.104 R)
• M13: 8,443,005 km (0.071 R)
• M14: 9,779,512 km (0.056 R)
• M15: 10,817,572 km (0.054 R)
• M16: 11,308,103 km (0.114 R)
• M17: 11,927,737 km (0.089 R)
• M18: 13,358,641 km (0.109 R)
• M19: 17,507,588 km (0.046 R)
• M20: 19,352,579 km (0.043 R)
• M21: 26,341,941 km (0.111 R)
• M22: 27,131,967 km (0.113 R)
• M23: 29,386,258 km (0.052 R)
• M24: 30,667,115 km (0.058 R)
• M25: 33,340,129 km (0.111 R)
• M26: 39,273,480 km (0.064 R)
• M27: 42,555,957 km (0.108 R)
• M28: 43,643,982 km (0.087 R)
• M29: 46,874,997 km (0.074 R)
• M30: 48,475,395 km (0.072 R)
• M31: 50,716,072 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 501.8

Radius: 6.5

Gravity: 11.88 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 14.28 AU - 15.72 AU

Year: 21219 Days

Day: 25 Hours

Environment

Temp: -195 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 71,350,700 km

• M1: 80,932 km (0.118 R)
• M2: 361,877 km (0.073 R)
• M3: 982,409 km (0.109 R)
• M4: 1,304,793 km (0.086 R)
• M5: 1,873,564 km (0.093 R)
• M6: 2,308,445 km (0.11 R)
• M7: 2,595,822 km (0.077 R)
• M8: 3,489,819 km (0.082 R)
• M9: 3,839,280 km (0.054 R)
• M10: 4,276,106 km (0.106 R)
• M11: 4,956,925 km (0.06 R)
• M12: 6,794,137 km (0.117 R)
• M13: 7,200,445 km (0.109 R)
• M14: 8,724,997 km (0.066 R)
• M15: 11,873,733 km (0.06 R)
• M16: 15,017,831 km (0.097 R)
• M17: 15,475,152 km (0.052 R)
• M18: 23,493,598 km (0.12 R)
• M19: 28,611,341 km (0.062 R)
• M20: 30,147,860 km (0.072 R)
• M21: 31,490,202 km (0.067 R)
• M22: 34,688,605 km (0.102 R)
• M23: 37,398,271 km (0.067 R)
• M24: 38,804,491 km (0.102 R)
• M25: 39,664,978 km (0.094 R)
• M26: 44,314,480 km (0.078 R)
• M27: 45,096,877 km (0.087 R)
• M28: 51,863,637 km (0.078 R)
• M29: 53,610,940 km (0.103 R)
• M30: 54,499,103 km (0.12 R)
• M31: 61,960,895 km (0.113 R)
• M32: 69,233,895 km (0.032 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 13,718 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit