🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.41 AU - 0.61 AU

Year: 138 Days

Day: 19.7 Hours

Environment

Temp: 187 °C

Axial Tilt: 32.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 101,629,959 km

• M1: 17,204 km (0.08 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.69 AU - 1.15 AU

Year: 334 Days

Day: 42.7 Hours

Environment

Temp: 33 °C

Axial Tilt: 93.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.48 AU - 2.58 AU

Year: 1524 Days

Day: 25.5 Hours

Environment

Temp: -109 °C

Axial Tilt: 48.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 101,629,959 km

• M1: 802,144 km (0.11 R)
• M2: 1,799,812 km (0.062 R)

Asteroid Belt

Center: 8.85 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Ice Giant

Semi-Major Axis: 15.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 73.7

Radius: 4.5

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 13.5 AU - 16.84 AU

Year: 22378 Days

Day: 15.1 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 101,629,959 km

• M1: 55,950 km (0.056 R)
• M2: 396,434 km (0.099 R)
• M3: 642,822 km (0.066 R)
• M4: 814,112 km (0.113 R)
• M5: 1,443,021 km (0.032 R)
• M6: 3,419,209 km (0.057 R)
• M7: 5,821,751 km (0.11 R)
• M8: 6,786,507 km (0.091 R)
• M9: 7,974,015 km (0.05 R)
• M10: 8,766,734 km (0.092 R)
• M11: 8,983,651 km (0.087 R)
• M12: 10,950,714 km (0.101 R)
• M13: 11,509,761 km (0.056 R)
• M14: 13,187,501 km (0.104 R)
• M15: 17,906,416 km (0.118 R)
• M16: 24,229,170 km (0.103 R)
• M17: 26,237,821 km (0.027 R)
• M18: 28,829,454 km (0.099 R)
• M19: 34,730,642 km (0.112 R)
• M20: 37,847,364 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 19.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 647.1

Radius: 7.5

Gravity: 11.5 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 15.31 AU - 23.01 AU

Year: 31764 Days

Day: 20.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 101,629,959 km

• M1: 93,798 km (0.102 R)
• M2: 541,095 km (0.095 R)
• M3: 811,868 km (0.114 R)
• M4: 3,002,579 km (0.078 R)
• M5: 4,446,647 km (0.108 R)
• M6: 6,209,508 km (0.08 R)
• M7: 6,494,642 km (0.067 R)
• M8: 6,938,798 km (0.118 R)
• M9: 13,015,164 km (0.111 R)
• M10: 17,264,342 km (0.114 R)
• M11: 19,598,518 km (0.086 R)
• M12: 20,213,365 km (0.055 R)
• M13: 23,027,002 km (0.102 R)
• M14: 24,763,684 km (0.11 R)
• M15: 26,710,550 km (0.104 R)
• M16: 29,284,681 km (0.074 R)
• M17: 32,302,219 km (0.091 R)
• M18: 34,326,727 km (0.083 R)
• M19: 34,771,332 km (0.115 R)
• M20: 39,755,335 km (0.116 R)
• M21: 45,729,526 km (0.101 R)
• M22: 46,810,221 km (0.101 R)
• M23: 50,345,219 km (0.071 R)
• M24: 52,667,127 km (0.069 R)
• M25: 54,254,061 km (0.113 R)
• M26: 74,608,048 km (0.116 R)
• M27: 76,860,843 km (0.11 R)
• M28: 86,873,727 km (0.106 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 472 - 11,661 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit