🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.89 AU - 1.09 AU

Year: 348 Days

Day: 12.8 Hours

Environment

Temp: 148 °C

Axial Tilt: 17.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,064,881 km

• M1: 289,322 km (0.06 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.92 AU - 1.2 AU

Year: 385 Days

Day: 28.7 Hours

Environment

Temp: 97 °C

Axial Tilt: 31.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 60,064,881 km

• M1: 147,803 km (0.117 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.04 AU - 1.38 AU

Year: 470 Days

Day: 13.1 Hours

Environment

Temp: 23 °C

Axial Tilt: 26.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.96

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 3.2 AU - 4.72 AU

Year: 2783 Days

Day: 16.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 28.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.9

Radius: 8.1

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 6.31 AU - 8.51 AU

Year: 7122 Days

Day: 13.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,064,881 km

• M1: 100,679 km (0.091 R)
• M2: 554,410 km (0.103 R)
• M3: 1,012,179 km (0.103 R)
• M4: 1,361,939 km (0.109 R)
• M5: 1,663,080 km (0.097 R)
• M6: 2,682,439 km (0.105 R)
• M7: 3,568,657 km (0.075 R)
• M8: 4,108,556 km (0.113 R)
• M9: 4,616,590 km (0.11 R)
• M10: 5,981,820 km (0.066 R)
• M11: 6,447,219 km (0.043 R)
• M12: 7,105,151 km (0.083 R)
• M13: 9,450,995 km (0.044 R)
• M14: 10,154,703 km (0.108 R)
• M15: 10,667,675 km (0.086 R)
• M16: 11,705,734 km (0.094 R)
• M17: 12,392,987 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 16.5

Radius: 10.1

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 6.53 AU - 9.55 AU

Year: 8050 Days

Day: 11.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,064,881 km

• M1: 129,701 km (0.092 R)
• M2: 455,376 km (0.111 R)
• M3: 828,772 km (0.048 R)
• M4: 1,782,758 km (0.064 R)
• M5: 3,426,090 km (0.054 R)
• M6: 4,191,284 km (0.117 R)
• M7: 5,007,190 km (0.06 R)
• M8: 5,537,066 km (0.103 R)
• M9: 6,332,179 km (0.104 R)
• M10: 7,201,492 km (0.034 R)
• M11: 8,286,226 km (0.066 R)
• M12: 8,969,888 km (0.078 R)
• M13: 11,384,697 km (0.089 R)
• M14: 11,872,685 km (0.032 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 142.1

Radius: 10.4

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 11.45 AU - 11.71 AU

Year: 13914 Days

Day: 9 Hours

Environment

Temp: -179 °C

Axial Tilt: 140.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,064,881 km

• M1: 132,693 km (0.061 R)
• M2: 988,692 km (0.106 R)
• M3: 1,601,595 km (0.117 R)
• M4: 2,017,327 km (0.094 R)
• M5: 3,536,793 km (0.107 R)
• M6: 6,284,158 km (0.064 R)
• M7: 6,758,383 km (0.072 R)
• M8: 8,445,997 km (0.053 R)
• M9: 9,108,865 km (0.1 R)
• M10: 10,351,873 km (0.106 R)
• M11: 12,009,268 km (0.107 R)
• M12: 12,901,171 km (0.096 R)
• M13: 14,063,247 km (0.07 R)
• M14: 15,354,127 km (0.103 R)
• M15: 18,237,776 km (0.057 R)
• M16: 18,855,016 km (0.066 R)
• M17: 25,390,499 km (0.106 R)
• M18: 26,857,455 km (0.076 R)
• M19: 35,259,470 km (0.113 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.5

Radius: 5

Gravity: 10.42 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 12.7 AU - 19.44 AU

Year: 22747 Days

Day: 15.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,064,881 km

• M1: 146,456 km (0.109 R)
• M2: 389,254 km (0.101 R)
• M3: 609,911 km (0.103 R)
• M4: 1,080,695 km (0.04 R)
• M5: 1,682,228 km (0.092 R)
• M6: 1,919,789 km (0.1 R)
• M7: 2,420,494 km (0.098 R)
• M8: 2,884,995 km (0.117 R)
• M9: 3,354,583 km (0.105 R)
• M10: 5,864,536 km (0.091 R)
• M11: 6,992,504 km (0.114 R)
• M12: 11,174,213 km (0.069 R)
• M13: 17,078,542 km (0.096 R)
• M14: 17,391,201 km (0.081 R)
• M15: 18,189,755 km (0.041 R)
• M16: 36,136,562 km (0.053 R)
• M17: 49,266,020 km (0.067 R)
• M18: 54,150,390 km (0.091 R)

Kuiper Belt

Range: 31.1 - 54.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 191 - 14,468 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit