🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.63 AU - 0.77 AU

Year: 221 Days

Day: 47.1 Hours

Environment

Temp: 99 °C

Axial Tilt: 33.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.77 AU - 1.19 AU

Year: 365 Days

Day: 14.4 Hours

Environment

Temp: 24 °C

Axial Tilt: 21.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 52,861,892 km

• M1: 524,041 km (0.107 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 1.08 AU - 1.34 AU

Year: 501 Days

Day: 16.9 Hours

Environment

Temp: -23 °C

Axial Tilt: 2.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.94

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.71 AU - 2.33 AU

Year: 1082 Days

Day: 31.5 Hours

Environment

Temp: -85 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.39 AU - 4.69 AU

Year: 3059 Days

Day: 36.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,861,892 km

• M1: 585,825 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.9

Radius: 12.6

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 4.5 AU - 4.52 AU

Year: 3608 Days

Day: 13.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,861,892 km

• M1: 157,227 km (0.05 R)
• M2: 822,040 km (0.12 R)
• M3: 1,440,328 km (0.054 R)
• M4: 1,883,138 km (0.1 R)
• M5: 3,106,849 km (0.034 R)
• M6: 4,394,886 km (0.087 R)
• M7: 5,005,395 km (0.095 R)
• M8: 5,755,479 km (0.106 R)
• M9: 6,396,506 km (0.094 R)
• M10: 8,571,958 km (0.104 R)
• M11: 10,723,175 km (0.048 R)
• M12: 12,967,443 km (0.11 R)
• M13: 15,897,317 km (0.092 R)
• M14: 16,406,249 km (0.107 R)
• M15: 17,456,725 km (0.093 R)
• M16: 21,420,470 km (0.105 R)
• M17: 22,041,750 km (0.102 R)
• M18: 23,611,182 km (0.042 R)
• M19: 25,714,827 km (0.045 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 119.8

Radius: 8

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 4.36 AU - 5.06 AU

Year: 3851 Days

Day: 12.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,861,892 km

• M1: 101,876 km (0.116 R)
• M2: 392,545 km (0.116 R)
• M3: 673,041 km (0.091 R)
• M4: 935,286 km (0.105 R)
• M5: 1,383,332 km (0.072 R)
• M6: 2,763,970 km (0.089 R)
• M7: 3,297,287 km (0.097 R)
• M8: 4,509,927 km (0.08 R)
• M9: 5,648,068 km (0.072 R)
• M10: 9,473,285 km (0.082 R)
• M11: 12,255,207 km (0.114 R)
• M12: 13,936,089 km (0.084 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.7

Radius: 12.7

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 10.51 AU - 12.15 AU

Year: 14367 Days

Day: 9.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 52,861,892 km

• M1: 157,975 km (0.101 R)
• M2: 844,929 km (0.107 R)
• M3: 1,557,015 km (0.109 R)
• M4: 1,952,551 km (0.112 R)
• M5: 2,416,155 km (0.036 R)
• M6: 2,976,698 km (0.112 R)
• M7: 4,008,625 km (0.06 R)
• M8: 5,582,095 km (0.093 R)
• M9: 6,137,701 km (0.049 R)
• M10: 6,770,949 km (0.1 R)
• M11: 7,447,132 km (0.041 R)
• M12: 10,121,044 km (0.118 R)
• M13: 11,703,341 km (0.103 R)
• M14: 12,994,071 km (0.119 R)
• M15: 14,309,635 km (0.091 R)
• M16: 18,223,863 km (0.103 R)
• M17: 20,210,972 km (0.093 R)
• M18: 20,904,358 km (0.073 R)
• M19: 22,615,009 km (0.053 R)
• M20: 23,268,154 km (0.066 R)
• M21: 28,090,890 km (0.055 R)
• M22: 33,542,087 km (0.118 R)
• M23: 36,898,764 km (0.098 R)
• M24: 40,473,255 km (0.083 R)
• M25: 44,708,820 km (0.107 R)
• M26: 46,632,648 km (0.072 R)
• M27: 47,843,643 km (0.042 R)
• M28: 49,856,034 km (0.051 R)
• M29: 50,645,013 km (0.118 R)
• M30: 56,061,652 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 357.4

Radius: 8

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 10.18 AU - 14.2 AU

Year: 16034 Days

Day: 15.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 52,861,892 km

• M1: 100,081 km (0.091 R)
• M2: 547,379 km (0.103 R)
• M3: 1,686,566 km (0.075 R)
• M4: 1,978,432 km (0.073 R)
• M5: 2,228,709 km (0.076 R)
• M6: 2,971,911 km (0.105 R)
• M7: 4,875,544 km (0.101 R)
• M8: 5,789,886 km (0.071 R)
• M9: 6,231,200 km (0.113 R)
• M10: 6,734,447 km (0.105 R)
• M11: 7,098,419 km (0.088 R)
• M12: 7,604,209 km (0.101 R)
• M13: 7,910,287 km (0.025 R)
• M14: 8,782,442 km (0.115 R)
• M15: 9,465,057 km (0.12 R)
• M16: 10,716,892 km (0.063 R)
• M17: 12,674,231 km (0.106 R)
• M18: 13,866,077 km (0.088 R)
• M19: 15,615,774 km (0.112 R)
• M20: 16,182,600 km (0.076 R)
• M21: 16,984,145 km (0.093 R)
• M22: 25,234,468 km (0.05 R)
• M23: 28,139,659 km (0.077 R)
• M24: 31,483,769 km (0.086 R)
• M25: 33,309,312 km (0.049 R)
• M26: 39,859,754 km (0.108 R)
• M27: 44,063,155 km (0.072 R)
• M28: 45,051,548 km (0.109 R)
• M29: 46,489,184 km (0.118 R)
• M30: 46,926,309 km (0.117 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: 535 - 19,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit