🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.53 AU - 0.77 AU

Year: 201 Days

Day: 16.9 Hours

Environment

Temp: 120 °C

Axial Tilt: 48.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 74,716,447 km

• M1: 130,001 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.64 AU - 1.06 AU

Year: 300 Days

Day: 24.4 Hours

Environment

Temp: 26 °C

Axial Tilt: 17.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.84 AU - 0.94 AU

Year: 321 Days

Day: 23.6 Hours

Environment

Temp: 20 °C

Axial Tilt: 25.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 74,716,447 km

• M1: 89,460 km (0.107 R)
• M2: 617,091 km (0.088 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.8 AU - 0.98 AU

Year: 321 Days

Day: 41.7 Hours

Environment

Temp: 25 °C

Axial Tilt: 22.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.6 AU - 2.72 AU

Year: 1661 Days

Day: 36.8 Hours

Environment

Temp: -114 °C

Axial Tilt: 43.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,716,447 km

• M1: 2,305,303 km (0.108 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 2.74 AU - 4.48 AU

Year: 2626 Days

Day: 20.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.9

Radius: 12.8

Gravity: 1.54 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 3.85 AU - 4.75 AU

Year: 3414 Days

Day: 6.4 Hours

Environment

Temp: -134 °C

Axial Tilt: 121.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,716,447 km

• M1: 159,322 km (0.058 R)
• M2: 708,795 km (0.114 R)
• M3: 1,321,248 km (0.062 R)
• M4: 2,402,392 km (0.069 R)
• M5: 4,353,597 km (0.051 R)
• M6: 5,178,929 km (0.103 R)
• M7: 5,956,688 km (0.073 R)
• M8: 8,044,177 km (0.118 R)
• M9: 9,220,465 km (0.049 R)
• M10: 9,694,241 km (0.109 R)
• M11: 10,950,415 km (0.093 R)
• M12: 12,846,119 km (0.058 R)
• M13: 15,090,685 km (0.045 R)
• M14: 16,775,008 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.8

Radius: 5.3

Gravity: 27.55 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 11.64 AU - 14.22 AU

Year: 17802 Days

Day: 18.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 74,716,447 km

• M1: 65,973 km (0.061 R)
• M2: 360,381 km (0.075 R)
• M3: 529,726 km (0.1 R)
• M4: 1,540,110 km (0.091 R)
• M5: 1,744,012 km (0.089 R)
• M6: 2,124,140 km (0.108 R)
• M7: 2,399,550 km (0.12 R)
• M8: 3,180,152 km (0.07 R)
• M9: 4,378,281 km (0.083 R)
• M10: 4,719,514 km (0.082 R)
• M11: 10,072,574 km (0.116 R)
• M12: 12,522,389 km (0.069 R)
• M13: 13,279,205 km (0.054 R)
• M14: 15,035,633 km (0.069 R)
• M15: 20,371,191 km (0.115 R)
• M16: 20,652,884 km (0.027 R)
• M17: 22,797,668 km (0.111 R)
• M18: 26,397,442 km (0.092 R)
• M19: 29,632,496 km (0.087 R)
• M20: 29,873,199 km (0.079 R)
• M21: 36,598,969 km (0.097 R)
• M22: 38,140,576 km (0.073 R)
• M23: 40,017,430 km (0.091 R)
• M24: 41,803,779 km (0.063 R)
• M25: 46,501,002 km (0.102 R)
• M26: 47,645,575 km (0.065 R)
• M27: 47,975,888 km (0.101 R)
• M28: 56,187,614 km (0.109 R)
• M29: 56,926,777 km (0.104 R)
• M30: 57,859,968 km (0.1 R)
• M31: 61,108,935 km (0.12 R)
• M32: 64,679,387 km (0.029 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582.9

Radius: 6.4

Gravity: 14.23 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 13 AU - 15.96 AU

Year: 21097 Days

Day: 24.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,716,447 km

• M1: 80,035 km (0.091 R)
• M2: 293,361 km (0.101 R)
• M3: 800,797 km (0.111 R)
• M4: 2,135,360 km (0.077 R)
• M5: 3,225,031 km (0.103 R)
• M6: 4,175,127 km (0.107 R)
• M7: 5,609,322 km (0.08 R)
• M8: 14,869,280 km (0.09 R)
• M9: 22,327,183 km (0.108 R)
• M10: 27,247,008 km (0.058 R)
• M11: 28,876,578 km (0.101 R)
• M12: 37,581,678 km (0.11 R)
• M13: 39,744,713 km (0.051 R)
• M14: 43,531,933 km (0.093 R)
• M15: 45,754,359 km (0.057 R)
• M16: 55,401,776 km (0.104 R)
• M17: 61,087,842 km (0.053 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 16,875 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit