🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.75 AU - 0.85 AU

Year: 270 Days

Day: 37.1 Hours

Environment

Temp: 141 °C

Axial Tilt: 3.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.95 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.89 AU - 1.01 AU

Year: 349 Days

Day: 43.7 Hours

Environment

Temp: 29 °C

Axial Tilt: 141.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.36 AU - 3.4 AU

Year: 1841 Days

Day: 14.6 Hours

Environment

Temp: -115 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 94,298,956 km

• M1: 1,126,322 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.2

Radius: 13.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 6.54 AU - 9.24 AU

Year: 8349 Days

Day: 8.3 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 94,298,956 km

• M1: 164,109 km (0.113 R)
• M2: 695,929 km (0.107 R)
• M3: 1,569,880 km (0.119 R)
• M4: 3,110,589 km (0.097 R)
• M5: 3,747,875 km (0.089 R)
• M6: 4,936,879 km (0.08 R)
• M7: 5,465,708 km (0.083 R)
• M8: 6,363,594 km (0.119 R)
• M9: 7,063,413 km (0.041 R)
• M10: 8,953,732 km (0.094 R)
• M11: 9,970,249 km (0.119 R)
• M12: 11,210,565 km (0.099 R)
• M13: 11,971,570 km (0.043 R)
• M14: 13,316,155 km (0.116 R)
• M15: 14,462,524 km (0.102 R)
• M16: 15,798,433 km (0.092 R)
• M17: 16,368,101 km (0.078 R)
• M18: 18,159,536 km (0.117 R)
• M19: 18,644,682 km (0.072 R)
• M20: 22,842,847 km (0.111 R)
• M21: 26,026,290 km (0.117 R)
• M22: 27,451,209 km (0.104 R)
• M23: 28,740,145 km (0.116 R)
• M24: 29,589,860 km (0.03 R)
• M25: 30,944,768 km (0.066 R)
• M26: 32,138,709 km (0.052 R)
• M27: 34,091,560 km (0.096 R)
• M28: 36,450,419 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 918.1

Radius: 4.2

Gravity: 52.05 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 12.61 AU - 18.21 AU

Year: 22789 Days

Day: 17.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 94,298,956 km

• M1: 52,359 km (0.09 R)
• M2: 331,060 km (0.052 R)
• M3: 1,254,528 km (0.113 R)
• M4: 1,481,468 km (0.114 R)
• M5: 2,306,201 km (0.112 R)
• M6: 4,391,296 km (0.091 R)
• M7: 4,723,104 km (0.078 R)
• M8: 5,994,536 km (0.064 R)
• M9: 6,495,689 km (0.055 R)
• M10: 12,692,183 km (0.081 R)
• M11: 13,062,437 km (0.116 R)
• M12: 15,353,529 km (0.111 R)
• M13: 15,520,779 km (0.115 R)
• M14: 17,441,317 km (0.06 R)
• M15: 20,307,462 km (0.039 R)
• M16: 24,255,649 km (0.042 R)
• M17: 24,710,875 km (0.118 R)
• M18: 34,621,286 km (0.092 R)
• M19: 44,468,266 km (0.092 R)
• M20: 53,112,630 km (0.069 R)
• M21: 61,750,261 km (0.099 R)
• M22: 62,173,324 km (0.107 R)
• M23: 65,627,688 km (0.113 R)
• M24: 70,583,267 km (0.088 R)
• M25: 71,743,249 km (0.101 R)
• M26: 76,267,388 km (0.094 R)
• M27: 77,980,882 km (0.085 R)
• M28: 84,830,819 km (0.1 R)
• M29: 86,405,636 km (0.099 R)
• M30: 86,934,763 km (0.081 R)
• M31: 88,804,138 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 593.8

Radius: 3.5

Gravity: 48.47 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 15.4 AU - 21.32 AU

Year: 29637 Days

Day: 17.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 94,298,956 km

• M1: 43,982 km (0.069 R)
• M2: 183,108 km (0.07 R)
• M3: 342,878 km (0.095 R)
• M4: 721,062 km (0.119 R)
• M5: 929,003 km (0.089 R)
• M6: 1,220,569 km (0.114 R)
• M7: 2,179,791 km (0.076 R)
• M8: 2,487,962 km (0.114 R)
• M9: 2,933,764 km (0.106 R)
• M10: 3,103,258 km (0.09 R)
• M11: 4,477,913 km (0.11 R)
• M12: 6,829,143 km (0.117 R)
• M13: 7,485,279 km (0.063 R)
• M14: 8,632,545 km (0.1 R)
• M15: 8,980,659 km (0.104 R)
• M16: 9,705,012 km (0.114 R)
• M17: 12,768,477 km (0.11 R)
• M18: 13,839,000 km (0.094 R)
• M19: 15,897,018 km (0.119 R)
• M20: 18,149,962 km (0.112 R)
• M21: 23,724,278 km (0.062 R)
• M22: 26,409,260 km (0.038 R)
• M23: 32,651,082 km (0.097 R)
• M24: 39,807,545 km (0.045 R)
• M25: 40,769,459 km (0.071 R)
• M26: 43,579,206 km (0.088 R)
• M27: 46,515,064 km (0.112 R)
• M28: 47,761,364 km (0.096 R)
• M29: 51,444,613 km (0.085 R)
• M30: 52,777,231 km (0.064 R)
• M31: 54,328,112 km (0.067 R)
• M32: 56,309,087 km (0.109 R)
• M33: 60,624,836 km (0.064 R)
• M34: 65,820,969 km (0.117 R)
• M35: 81,111,218 km (0.059 R)
• M36: 83,695,521 km (0.068 R)
• M37: 89,846,686 km (0.074 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: 430 - 19,607 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit