🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.51 AU - 0.55 AU

Year: 137 Days

Day: 38.8 Hours

Environment

Temp: 237 °C

Axial Tilt: 37.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.12

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.83 AU - 1.85 AU

Year: 885 Days

Day: 27 Hours

Environment

Temp: -57 °C

Axial Tilt: 35.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.15

Radius: 1.06

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.84 AU - 5.82 AU

Year: 3766 Days

Day: 12.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 63.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.33 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480.7

Radius: 12.6

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.69 AU - 5.95 AU

Year: 4981 Days

Day: 5.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,652,300 km

• M1: 161,416 km (0.091 R)
• M2: 674,686 km (0.057 R)
• M3: 1,367,325 km (0.073 R)
• M4: 2,746,767 km (0.094 R)
• M5: 4,300,191 km (0.095 R)
• M6: 5,456,582 km (0.052 R)
• M7: 5,933,052 km (0.092 R)
• M8: 7,531,804 km (0.084 R)
• M9: 9,401,329 km (0.051 R)
• M10: 9,801,503 km (0.037 R)
• M11: 11,608,346 km (0.114 R)
• M12: 12,116,231 km (0.081 R)
• M13: 14,455,493 km (0.119 R)
• M14: 14,881,697 km (0.097 R)
• M15: 16,325,466 km (0.112 R)
• M16: 19,169,172 km (0.119 R)
• M17: 22,898,497 km (0.114 R)
• M18: 23,551,642 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.4

Radius: 7.7

Gravity: 15.49 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 15.24 AU - 15.48 AU

Year: 21356 Days

Day: 15.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 87,652,300 km

• M1: 95,892 km (0.091 R)
• M2: 659,128 km (0.08 R)
• M3: 1,066,782 km (0.109 R)
• M4: 1,480,271 km (0.08 R)
• M5: 1,725,163 km (0.091 R)
• M6: 3,185,387 km (0.102 R)
• M7: 3,691,178 km (0.051 R)
• M8: 4,566,774 km (0.101 R)
• M9: 5,369,816 km (0.101 R)
• M10: 7,554,244 km (0.041 R)
• M11: 9,013,122 km (0.101 R)
• M12: 10,523,313 km (0.097 R)
• M13: 13,130,953 km (0.071 R)
• M14: 15,803,968 km (0.105 R)
• M15: 16,654,432 km (0.046 R)
• M16: 18,539,066 km (0.082 R)
• M17: 20,067,358 km (0.079 R)
• M18: 22,198,230 km (0.063 R)
• M19: 22,940,833 km (0.119 R)
• M20: 29,870,955 km (0.1 R)
• M21: 30,645,423 km (0.063 R)
• M22: 33,323,823 km (0.109 R)
• M23: 35,864,294 km (0.1 R)
• M24: 39,912,712 km (0.108 R)
• M25: 43,428,711 km (0.111 R)
• M26: 44,589,291 km (0.079 R)
• M27: 45,261,733 km (0.115 R)
• M28: 54,056,443 km (0.064 R)
• M29: 63,499,958 km (0.064 R)
• M30: 66,949,685 km (0.095 R)
• M31: 71,664,561 km (0.045 R)
• M32: 75,401,815 km (0.088 R)
• M33: 77,802,561 km (0.114 R)
• M34: 86,866,696 km (0.088 R)

Kuiper Belt

Range: 30.9 - 60.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 443 - 17,758 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit