🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.59

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.6 AU - 0.62 AU

Year: 183 Days

Day: 12.3 Hours

Environment

Temp: 158 °C

Axial Tilt: 19.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 87,420,757 km

• M1: 64,776 km (0.073 R)
• M2: 417,976 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.65 AU - 1.05 AU

Year: 302 Days

Day: 45.6 Hours

Environment

Temp: 40 °C

Axial Tilt: 15.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.95

Radius: 0.98

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.69 AU - 1.11 AU

Year: 329 Days

Day: 25.6 Hours

Environment

Temp: 5 °C

Axial Tilt: 39.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.83

Radius: 1.27

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.92 AU - 1.28 AU

Year: 444 Days

Day: 34.5 Hours

Environment

Temp: -6 °C

Axial Tilt: 20.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 87,420,757 km

• M1: 105,466 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.4

Radius: 11.9

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.47 AU - 9.91 AU

Year: 11613 Days

Day: 5.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 87,420,757 km

• M1: 148,251 km (0.105 R)
• M2: 638,334 km (0.074 R)
• M3: 1,045,689 km (0.098 R)
• M4: 1,917,994 km (0.047 R)
• M5: 2,451,311 km (0.114 R)
• M6: 2,989,265 km (0.088 R)
• M7: 4,515,013 km (0.079 R)
• M8: 5,466,605 km (0.09 R)
• M9: 6,507,807 km (0.073 R)
• M10: 8,931,591 km (0.093 R)
• M11: 13,646,168 km (0.05 R)
• M12: 15,199,592 km (0.051 R)
• M13: 16,274,304 km (0.082 R)
• M14: 17,170,096 km (0.109 R)
• M15: 18,098,350 km (0.108 R)
• M16: 20,054,941 km (0.111 R)
• M17: 21,789,977 km (0.102 R)
• M18: 24,097,075 km (0.05 R)
• M19: 25,260,348 km (0.092 R)
• M20: 29,627,858 km (0.089 R)
• M21: 31,530,294 km (0.074 R)
• M22: 32,105,049 km (0.107 R)
• M23: 38,503,799 km (0.077 R)
• M24: 41,862,571 km (0.099 R)
• M25: 44,975,852 km (0.049 R)
• M26: 45,557,937 km (0.065 R)
• M27: 46,440,714 km (0.115 R)
• M28: 47,184,964 km (0.108 R)
• M29: 56,072,274 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.9

Radius: 12.4

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.71 AU - 11.03 AU

Year: 11938 Days

Day: 12.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,420,757 km

• M1: 163,361 km (0.081 R)
• M2: 1,321,398 km (0.117 R)
• M3: 2,338,364 km (0.119 R)
• M4: 3,431,326 km (0.102 R)
• M5: 4,001,145 km (0.079 R)
• M6: 4,989,239 km (0.119 R)
• M7: 6,063,800 km (0.075 R)
• M8: 6,564,055 km (0.095 R)
• M9: 9,211,190 km (0.107 R)
• M10: 11,561,223 km (0.119 R)
• M11: 15,500,583 km (0.107 R)
• M12: 17,201,661 km (0.119 R)
• M13: 21,622,577 km (0.036 R)
• M14: 27,417,251 km (0.068 R)
• M15: 28,788,315 km (0.087 R)
• M16: 30,721,419 km (0.112 R)
• M17: 33,285,227 km (0.113 R)
• M18: 37,156,970 km (0.064 R)
• M19: 42,859,491 km (0.058 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.6

Radius: 5.7

Gravity: 21.22 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 12.19 AU - 19.73 AU

Year: 24548 Days

Day: 24.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,420,757 km

• M1: 70,909 km (0.115 R)
• M2: 660,624 km (0.115 R)
• M3: 891,454 km (0.112 R)
• M4: 1,161,627 km (0.119 R)
• M5: 2,749,459 km (0.054 R)
• M6: 3,945,943 km (0.107 R)
• M7: 7,664,946 km (0.116 R)
• M8: 10,097,856 km (0.11 R)
• M9: 11,657,863 km (0.037 R)
• M10: 23,728,765 km (0.061 R)
• M11: 24,170,229 km (0.114 R)
• M12: 28,146,839 km (0.046 R)
• M13: 28,517,244 km (0.099 R)
• M14: 32,674,120 km (0.092 R)
• M15: 36,335,079 km (0.093 R)
• M16: 37,514,359 km (0.096 R)
• M17: 42,164,010 km (0.119 R)
• M18: 50,197,117 km (0.105 R)
• M19: 52,960,788 km (0.111 R)
• M20: 70,558,285 km (0.097 R)
• M21: 82,535,838 km (0.062 R)
• M22: 84,569,771 km (0.108 R)
• M23: 85,599,154 km (0.047 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 18,344 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit