🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.73 AU - 0.83 AU

Year: 262 Days

Day: 43.4 Hours

Environment

Temp: 83 °C

Axial Tilt: 35.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 45,734,596 km

• M1: 51,462 km (0.103 R)
• M2: 517,309 km (0.069 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.15 AU - 1.31 AU

Year: 519 Days

Day: 38.3 Hours

Environment

Temp: -25 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.48 AU - 1.76 AU

Year: 785 Days

Day: 34.6 Hours

Environment

Temp: -63 °C

Axial Tilt: 57.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.64 AU - 2.38 AU

Year: 1085 Days

Day: 12.6 Hours

Environment

Temp: -73 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 640.8

Radius: 10.6

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 4.63 AU - 4.87 AU

Year: 3942 Days

Day: 8 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 45,734,596 km

• M1: 132,843 km (0.092 R)
• M2: 482,752 km (0.073 R)
• M3: 864,376 km (0.104 R)
• M4: 1,688,810 km (0.116 R)
• M5: 2,447,122 km (0.053 R)
• M6: 4,511,273 km (0.077 R)
• M7: 4,923,116 km (0.083 R)
• M8: 6,282,363 km (0.078 R)
• M9: 7,242,183 km (0.084 R)
• M10: 7,911,483 km (0.045 R)
• M11: 8,548,621 km (0.118 R)
• M12: 10,457,340 km (0.079 R)
• M13: 11,051,244 km (0.082 R)
• M14: 12,353,044 km (0.058 R)
• M15: 15,802,621 km (0.087 R)
• M16: 18,777,375 km (0.091 R)
• M17: 21,696,030 km (0.091 R)
• M18: 24,312,197 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.7

Radius: 10.2

Gravity: 8.77 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.1 AU - 5.5 AU

Year: 4005 Days

Day: 9.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,734,596 km

• M1: 126,859 km (0.116 R)
• M2: 447,447 km (0.028 R)
• M3: 1,502,711 km (0.101 R)
• M4: 1,994,140 km (0.097 R)
• M5: 3,107,746 km (0.114 R)
• M6: 4,326,370 km (0.057 R)
• M7: 4,669,249 km (0.049 R)
• M8: 6,507,358 km (0.117 R)
• M9: 6,959,143 km (0.091 R)
• M10: 7,500,987 km (0.034 R)
• M11: 8,143,958 km (0.103 R)
• M12: 8,745,940 km (0.058 R)
• M13: 10,208,858 km (0.096 R)
• M14: 14,033,327 km (0.077 R)
• M15: 16,146,547 km (0.11 R)
• M16: 17,709,396 km (0.107 R)
• M17: 18,591,425 km (0.054 R)
• M18: 23,521,572 km (0.036 R)
• M19: 25,053,604 km (0.117 R)
• M20: 27,060,759 km (0.044 R)
• M21: 28,061,269 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.1

Radius: 4.8

Gravity: 10.2 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 11.12 AU - 12.96 AU

Year: 15909 Days

Day: 23.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 144 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 45,734,596 km

• M1: 77,492 km (0.073 R)
• M2: 344,225 km (0.096 R)
• M3: 513,569 km (0.084 R)
• M4: 739,612 km (0.098 R)
• M5: 1,268,440 km (0.108 R)
• M6: 1,746,256 km (0.062 R)
• M7: 2,392,070 km (0.115 R)
• M8: 2,605,696 km (0.097 R)
• M9: 2,790,000 km (0.113 R)
• M10: 3,277,241 km (0.105 R)
• M11: 4,139,074 km (0.094 R)
• M12: 5,016,914 km (0.1 R)
• M13: 5,206,305 km (0.098 R)
• M14: 5,367,721 km (0.104 R)
• M15: 5,666,917 km (0.082 R)
• M16: 5,837,907 km (0.114 R)
• M17: 6,631,225 km (0.12 R)
• M18: 9,203,859 km (0.055 R)
• M19: 9,632,457 km (0.093 R)
• M20: 10,840,311 km (0.096 R)
• M21: 19,873,329 km (0.084 R)
• M22: 21,238,410 km (0.043 R)
• M23: 25,987,693 km (0.07 R)
• M24: 27,422,486 km (0.049 R)
• M25: 27,813,835 km (0.116 R)
• M26: 32,042,518 km (0.102 R)
• M27: 32,695,213 km (0.094 R)
• M28: 33,802,686 km (0.113 R)
• M29: 39,343,941 km (0.096 R)
• M30: 39,841,803 km (0.034 R)
• M31: 40,092,229 km (0.052 R)
• M32: 40,723,084 km (0.086 R)
• M33: 45,188,730 km (0.114 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 302 - 13,409 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit