🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.54 AU - 0.54 AU

Year: 177 Days

Day: 21.9 Hours

Environment

Temp: 22 °C

Axial Tilt: 17.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 82,522,459 km

• M1: 29,920 km (0.104 R)
• M2: 97,388 km (0.048 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.56 AU - 0.78 AU

Year: 245 Days

Day: 24.9 Hours

Environment

Temp: 6 °C

Axial Tilt: 37.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.67 AU - 0.69 AU

Year: 250 Days

Day: 15.8 Hours

Environment

Temp: -6 °C

Axial Tilt: 31.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 82,522,459 km

• M1: 29,022 km (0.089 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.46 AU - 2.43 AU

Year: 1206 Days

Day: 23 Hours

Environment

Temp: -128 °C

Axial Tilt: 14.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 82,522,459 km

• M1: 106,663 km (0.083 R)
• M2: 1,937,592 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.4

Radius: 14.7

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.58 AU - 2.7 AU

Year: 1914 Days

Day: 6.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,522,459 km

• M1: 182,809 km (0.096 R)
• M2: 649,704 km (0.036 R)
• M3: 1,154,447 km (0.082 R)
• M4: 1,686,417 km (0.085 R)
• M5: 2,168,122 km (0.112 R)
• M6: 2,861,059 km (0.119 R)
• M7: 3,522,431 km (0.12 R)
• M8: 4,364,817 km (0.065 R)
• M9: 5,109,964 km (0.06 R)
• M10: 5,790,485 km (0.051 R)
• M11: 8,453,327 km (0.116 R)
• M12: 10,143,484 km (0.105 R)
• M13: 12,252,215 km (0.108 R)
• M14: 13,826,434 km (0.069 R)
• M15: 15,724,531 km (0.054 R)
• M16: 16,460,553 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.6

Radius: 11.7

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 3.95 AU - 6.03 AU

Year: 4974 Days

Day: 13.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 82,522,459 km

• M1: 145,708 km (0.057 R)
• M2: 522,695 km (0.048 R)
• M3: 1,407,417 km (0.115 R)
• M4: 2,159,296 km (0.1 R)
• M5: 2,568,296 km (0.092 R)
• M6: 3,629,544 km (0.102 R)
• M7: 4,453,379 km (0.084 R)
• M8: 4,989,239 km (0.055 R)
• M9: 5,567,734 km (0.114 R)
• M10: 5,977,781 km (0.103 R)
• M11: 6,826,300 km (0.097 R)
• M12: 7,331,343 km (0.119 R)
• M13: 12,266,876 km (0.117 R)
• M14: 13,168,203 km (0.103 R)
• M15: 13,846,181 km (0.066 R)
• M16: 14,274,778 km (0.095 R)
• M17: 16,255,454 km (0.104 R)
• M18: 17,342,582 km (0.078 R)
• M19: 20,964,945 km (0.071 R)
• M20: 22,252,384 km (0.108 R)
• M21: 23,516,037 km (0.089 R)
• M22: 26,023,597 km (0.098 R)
• M23: 28,273,848 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34.2

Radius: 13.6

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 5.24 AU - 6.76 AU

Year: 6558 Days

Day: 7.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,522,459 km

• M1: 169,195 km (0.065 R)
• M2: 1,207,704 km (0.078 R)
• M3: 3,489,670 km (0.118 R)
• M4: 4,837,397 km (0.09 R)
• M5: 6,878,660 km (0.092 R)
• M6: 7,663,151 km (0.086 R)
• M7: 8,448,390 km (0.1 R)
• M8: 11,234,501 km (0.077 R)

Planet 8 - Ice Giant

Semi-Major Axis: 14.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 605.4

Radius: 4.5

Gravity: 29.9 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 12.65 AU - 15.87 AU

Year: 24029 Days

Day: 18.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,522,459 km

• M1: 62,981 km (0.053 R)
• M2: 282,291 km (0.051 R)
• M3: 461,061 km (0.116 R)
• M4: 735,722 km (0.091 R)
• M5: 1,625,680 km (0.097 R)
• M6: 2,633,521 km (0.103 R)
• M7: 3,412,926 km (0.1 R)
• M8: 3,683,399 km (0.102 R)
• M9: 11,451,867 km (0.051 R)
• M10: 11,853,238 km (0.081 R)
• M11: 20,578,384 km (0.097 R)
• M12: 20,873,540 km (0.089 R)
• M13: 23,657,108 km (0.108 R)
• M14: 34,292,769 km (0.096 R)
• M15: 46,194,027 km (0.025 R)
• M16: 48,239,180 km (0.082 R)
• M17: 48,412,414 km (0.039 R)
• M18: 53,614,830 km (0.12 R)
• M19: 59,177,626 km (0.104 R)
• M20: 77,672,710 km (0.119 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 15,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit