🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.96

Radius: 0.98

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.12 AU - 1.44 AU

Year: 607 Days

Day: 26.1 Hours

Environment

Temp: -65 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.24 AU - 1.9 AU

Year: 824 Days

Day: 38.4 Hours

Environment

Temp: -91 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.59 AU - 2.27 AU

Year: 1123 Days

Day: 13.8 Hours

Environment

Temp: -101 °C

Axial Tilt: 29.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 2.23 AU - 2.31 AU

Year: 1433 Days

Day: 34.5 Hours

Environment

Temp: -123 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.32 AU - 2.64 AU

Year: 1636 Days

Day: 27.8 Hours

Environment

Temp: -135 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 17,839,675 km

• M1: 21,841 km (0.051 R)
• M2: 54,902 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 796.8

Radius: 10.4

Gravity: 7.37 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 4.31 AU - 4.59 AU

Year: 3933 Days

Day: 7.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 17,839,675 km

• M1: 136,732 km (0.114 R)
• M2: 470,037 km (0.081 R)
• M3: 1,028,485 km (0.076 R)
• M4: 1,406,968 km (0.106 R)
• M5: 1,739,225 km (0.101 R)
• M6: 2,082,103 km (0.115 R)
• M7: 3,052,245 km (0.12 R)
• M8: 3,639,118 km (0.108 R)
• M9: 4,346,566 km (0.111 R)
• M10: 4,909,802 km (0.026 R)
• M11: 6,516,782 km (0.111 R)
• M12: 7,024,966 km (0.109 R)
• M13: 8,634,789 km (0.115 R)
• M14: 10,606,040 km (0.084 R)
• M15: 11,445,583 km (0.11 R)
• M16: 12,328,660 km (0.076 R)
• M17: 13,357,145 km (0.061 R)
• M18: 14,388,772 km (0.077 R)
• M19: 16,205,788 km (0.09 R)
• M20: 17,499,211 km (0.094 R)
• M21: 18,733,543 km (0.107 R)
• M22: 21,168,697 km (0.12 R)
• M23: 22,001,957 km (0.038 R)
• M24: 25,090,704 km (0.086 R)
• M25: 25,866,669 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 944.1

Radius: 12.1

Gravity: 6.45 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 5.54 AU - 6.42 AU

Year: 6127 Days

Day: 6.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 17,839,675 km

• M1: 150,944 km (0.111 R)
• M2: 587,022 km (0.118 R)
• M3: 1,019,210 km (0.083 R)
• M4: 1,553,125 km (0.047 R)
• M5: 2,372,024 km (0.11 R)
• M6: 3,051,497 km (0.102 R)
• M7: 4,389,351 km (0.114 R)
• M8: 5,355,454 km (0.072 R)
• M9: 5,760,416 km (0.08 R)
• M10: 6,219,531 km (0.12 R)
• M11: 7,248,765 km (0.088 R)
• M12: 7,706,684 km (0.05 R)
• M13: 8,102,819 km (0.081 R)
• M14: 13,695,835 km (0.112 R)
• M15: 15,619,514 km (0.101 R)
• M16: 17,854,356 km (0.097 R)
• M17: 19,120,253 km (0.096 R)
• M18: 19,555,134 km (0.074 R)
• M19: 23,031,041 km (0.107 R)
• M20: 23,689,421 km (0.09 R)
• M21: 26,270,882 km (0.096 R)
• M22: 27,080,506 km (0.07 R)
• M23: 31,280,316 km (0.053 R)
• M24: 33,534,756 km (0.051 R)
• M25: 35,024,601 km (0.055 R)
• M26: 37,228,777 km (0.076 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.8

Radius: 12.3

Gravity: 0.55 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 4.99 AU - 7.49 AU

Year: 6531 Days

Day: 13.8 Hours

Environment

Temp: -186 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,839,675 km

• M1: 182,061 km (0.095 R)
• M2: 872,904 km (0.028 R)
• M3: 1,510,639 km (0.097 R)
• M4: 2,499,182 km (0.099 R)
• M5: 3,209,323 km (0.099 R)
• M6: 4,491,826 km (0.115 R)
• M7: 5,055,211 km (0.087 R)
• M8: 6,948,971 km (0.05 R)
• M9: 8,611,003 km (0.069 R)
• M10: 9,833,666 km (0.077 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 376 - 16,885 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit