🌌 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: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.84 AU - 0.96 AU

Year: 300 Days

Day: 31.3 Hours

Environment

Temp: 165 °C

Axial Tilt: 11.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 2.06 AU - 3.18 AU

Year: 1490 Days

Day: 23.5 Hours

Environment

Temp: -74 °C

Axial Tilt: 12.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 83,784,512 km

• M1: 224,995 km (0.032 R)

Planet 3 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.4

Radius: 14.6

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 7.92 AU - 9.72 AU

Year: 9206 Days

Day: 14.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,784,512 km

• M1: 181,612 km (0.083 R)
• M2: 1,204,263 km (0.053 R)
• M3: 1,848,132 km (0.09 R)
• M4: 2,908,781 km (0.043 R)
• M5: 5,939,484 km (0.043 R)
• M6: 6,752,848 km (0.114 R)
• M7: 7,387,442 km (0.096 R)
• M8: 10,891,323 km (0.108 R)
• M9: 13,188,548 km (0.084 R)
• M10: 15,949,676 km (0.1 R)
• M11: 20,409,637 km (0.057 R)
• M12: 21,417,628 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 475.7

Radius: 9.3

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 7.46 AU - 11.76 AU

Year: 10470 Days

Day: 10.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,784,512 km

• M1: 115,789 km (0.038 R)
• M2: 525,687 km (0.039 R)
• M3: 918,830 km (0.105 R)
• M4: 1,247,796 km (0.105 R)
• M5: 2,068,639 km (0.037 R)
• M6: 2,867,642 km (0.12 R)
• M7: 3,235,652 km (0.114 R)
• M8: 3,808,911 km (0.032 R)
• M9: 5,126,569 km (0.118 R)
• M10: 5,474,534 km (0.098 R)
• M11: 6,288,945 km (0.084 R)
• M12: 6,725,471 km (0.098 R)
• M13: 7,260,134 km (0.102 R)
• M14: 7,822,772 km (0.12 R)
• M15: 8,114,936 km (0.069 R)
• M16: 8,414,431 km (0.106 R)
• M17: 9,497,520 km (0.089 R)
• M18: 10,824,154 km (0.12 R)
• M19: 12,270,466 km (0.11 R)
• M20: 13,303,589 km (0.114 R)
• M21: 15,281,722 km (0.092 R)
• M22: 19,429,622 km (0.088 R)
• M23: 20,122,110 km (0.116 R)
• M24: 23,920,999 km (0.08 R)
• M25: 25,347,115 km (0.095 R)
• M26: 26,829,181 km (0.093 R)
• M27: 28,466,231 km (0.093 R)
• M28: 33,555,999 km (0.102 R)
• M29: 34,440,871 km (0.118 R)
• M30: 36,954,264 km (0.075 R)
• M31: 39,221,271 km (0.102 R)
• M32: 41,452,972 km (0.096 R)

Planet 5 - Ice Giant

Semi-Major Axis: 14.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 241.3

Radius: 7.4

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 12.15 AU - 16.07 AU

Year: 18628 Days

Day: 24.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,784,512 km

• M1: 98,884 km (0.112 R)
• M2: 1,445,863 km (0.095 R)
• M3: 2,102,748 km (0.113 R)
• M4: 3,317,333 km (0.096 R)
• M5: 5,336,006 km (0.076 R)
• M6: 6,184,825 km (0.087 R)
• M7: 8,885,216 km (0.07 R)
• M8: 9,368,267 km (0.064 R)
• M9: 11,704,089 km (0.117 R)
• M10: 16,463,545 km (0.048 R)
• M11: 20,240,143 km (0.058 R)
• M12: 23,813,587 km (0.06 R)
• M13: 27,179,390 km (0.114 R)
• M14: 41,641,614 km (0.114 R)
• M15: 46,065,074 km (0.082 R)
• M16: 47,509,142 km (0.104 R)
• M17: 47,948,212 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31.4

Radius: 4.5

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 17.22 AU - 19.98 AU

Year: 28193 Days

Day: 16.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,784,512 km

• M1: 57,446 km (0.118 R)
• M2: 759,060 km (0.098 R)
• M3: 1,094,009 km (0.102 R)
• M4: 2,927,930 km (0.1 R)
• M5: 4,834,255 km (0.109 R)
• M6: 5,030,228 km (0.082 R)
• M7: 6,253,490 km (0.1 R)
• M8: 12,341,076 km (0.093 R)
• M9: 24,070,447 km (0.057 R)
• M10: 29,919,574 km (0.066 R)
• M11: 33,321,131 km (0.025 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 402.5

Radius: 6.4

Gravity: 9.83 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 17.78 AU - 21.12 AU

Year: 30148 Days

Day: 15.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,784,512 km

• M1: 79,736 km (0.057 R)
• M2: 324,328 km (0.066 R)
• M3: 700,268 km (0.081 R)
• M4: 1,111,363 km (0.107 R)
• M5: 2,362,300 km (0.105 R)
• M6: 4,636,487 km (0.087 R)
• M7: 5,083,186 km (0.101 R)
• M8: 8,068,711 km (0.109 R)
• M9: 15,992,611 km (0.113 R)
• M10: 18,069,628 km (0.105 R)
• M11: 18,341,297 km (0.07 R)
• M12: 19,740,636 km (0.062 R)
• M13: 26,283,149 km (0.111 R)
• M14: 33,451,729 km (0.031 R)
• M15: 37,554,002 km (0.082 R)
• M16: 43,582,647 km (0.059 R)
• M17: 46,231,876 km (0.057 R)
• M18: 51,848,528 km (0.067 R)
• M19: 53,506,521 km (0.037 R)
• M20: 60,089,126 km (0.051 R)
• M21: 67,408,202 km (0.107 R)
• M22: 76,711,395 km (0.119 R)
• M23: 81,298,364 km (0.064 R)

Kuiper Belt

Range: 31.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 16,585 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit