🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.86 AU - 0.94 AU

Year: 313 Days

Day: 43.3 Hours

Environment

Temp: 122 °C

Axial Tilt: 41.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 65,698,422 km

• M1: 61,784 km (0.067 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.84 AU - 1.16 AU

Year: 367 Days

Day: 33.4 Hours

Environment

Temp: 33 °C

Axial Tilt: 11.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.07 AU - 1.21 AU

Year: 447 Days

Day: 16.7 Hours

Environment

Temp: 20 °C

Axial Tilt: 24.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.25 AU - 1.37 AU

Year: 550 Days

Day: 22.9 Hours

Environment

Temp: 8 °C

Axial Tilt: 26.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 65,698,422 km

• M1: 836,402 km (0.114 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.77 AU - 2.13 AU

Year: 1000 Days

Day: 21.1 Hours

Environment

Temp: -76 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 11.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 285.5

Radius: 8.6

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 8.95 AU - 13.45 AU

Year: 13759 Days

Day: 7.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 65,698,422 km

• M1: 116,088 km (0.097 R)
• M2: 948,002 km (0.089 R)
• M3: 1,229,844 km (0.093 R)
• M4: 1,637,797 km (0.025 R)
• M5: 2,570,091 km (0.035 R)
• M6: 2,913,718 km (0.057 R)
• M7: 3,451,223 km (0.072 R)
• M8: 4,241,698 km (0.105 R)
• M9: 6,072,327 km (0.089 R)
• M10: 6,760,029 km (0.095 R)
• M11: 7,338,823 km (0.043 R)
• M12: 8,247,031 km (0.106 R)
• M13: 8,907,805 km (0.097 R)
• M14: 10,740,080 km (0.038 R)
• M15: 11,050,795 km (0.102 R)
• M16: 11,581,867 km (0.12 R)
• M17: 12,185,644 km (0.113 R)
• M18: 12,984,347 km (0.119 R)
• M19: 14,812,732 km (0.092 R)
• M20: 15,262,872 km (0.089 R)
• M21: 15,854,981 km (0.12 R)
• M22: 16,875,837 km (0.043 R)
• M23: 17,296,207 km (0.096 R)
• M24: 17,939,777 km (0.056 R)
• M25: 18,451,401 km (0.106 R)
• M26: 20,516,151 km (0.081 R)
• M27: 23,329,489 km (0.102 R)
• M28: 26,861,644 km (0.073 R)
• M29: 29,708,342 km (0.109 R)
• M30: 35,533,982 km (0.078 R)
• M31: 35,993,696 km (0.101 R)
• M32: 36,457,151 km (0.057 R)
• M33: 37,514,658 km (0.089 R)
• M34: 42,721,711 km (0.112 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.9

Radius: 11.5

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 9.55 AU - 14.65 AU

Year: 15451 Days

Day: 6.1 Hours

Environment

Temp: -187 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 65,698,422 km

• M1: 143,165 km (0.085 R)
• M2: 739,163 km (0.115 R)
• M3: 2,462,082 km (0.074 R)
• M4: 2,830,841 km (0.07 R)
• M5: 4,000,696 km (0.092 R)
• M6: 5,401,082 km (0.065 R)
• M7: 6,066,343 km (0.101 R)
• M8: 6,746,266 km (0.073 R)
• M9: 8,303,280 km (0.075 R)
• M10: 9,832,619 km (0.116 R)
• M11: 10,825,351 km (0.061 R)
• M12: 12,349,155 km (0.037 R)
• M13: 15,818,329 km (0.103 R)
• M14: 17,327,323 km (0.117 R)
• M15: 17,700,420 km (0.114 R)
• M16: 18,617,605 km (0.059 R)
• M17: 19,246,364 km (0.092 R)
• M18: 20,463,642 km (0.059 R)
• M19: 21,303,335 km (0.116 R)
• M20: 26,830,677 km (0.104 R)
• M21: 27,229,954 km (0.082 R)
• M22: 27,633,270 km (0.1 R)
• M23: 28,555,242 km (0.065 R)
• M24: 30,677,287 km (0.111 R)
• M25: 31,999,882 km (0.114 R)
• M26: 34,876,799 km (0.117 R)
• M27: 41,140,162 km (0.091 R)
• M28: 48,556,477 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 605.5

Radius: 5.4

Gravity: 20.76 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 11.43 AU - 14.43 AU

Year: 17068 Days

Day: 23.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 65,698,422 km

• M1: 67,169 km (0.09 R)
• M2: 255,064 km (0.101 R)
• M3: 756,516 km (0.086 R)
• M4: 1,181,225 km (0.049 R)
• M5: 2,237,984 km (0.089 R)
• M6: 2,447,272 km (0.082 R)
• M7: 3,990,374 km (0.108 R)
• M8: 4,236,163 km (0.107 R)
• M9: 4,459,363 km (0.098 R)
• M10: 6,331,281 km (0.112 R)
• M11: 7,325,509 km (0.047 R)
• M12: 7,883,509 km (0.113 R)
• M13: 8,671,141 km (0.113 R)
• M14: 17,433,837 km (0.088 R)
• M15: 20,072,893 km (0.084 R)
• M16: 22,386,274 km (0.08 R)
• M17: 22,772,237 km (0.062 R)
• M18: 26,447,408 km (0.109 R)
• M19: 29,797,053 km (0.059 R)
• M20: 38,967,104 km (0.053 R)
• M21: 42,692,091 km (0.093 R)
• M22: 45,405,647 km (0.071 R)
• M23: 52,179,887 km (0.097 R)
• M24: 52,688,071 km (0.061 R)
• M25: 56,337,810 km (0.109 R)
• M26: 56,515,682 km (0.115 R)
• M27: 64,524,105 km (0.116 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: 195 - 14,489 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit