🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.66 AU - 0.66 AU

Year: 341 Days

Day: 22.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.7

Radius: 9.7

Gravity: 8.35 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.83 AU - 0.91 AU

Year: 516 Days

Day: 12.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 48,743,998 km

• M1: 120,725 km (0.117 R)
• M2: 447,447 km (0.107 R)
• M3: 807,679 km (0.084 R)
• M4: 1,161,179 km (0.042 R)
• M5: 1,560,007 km (0.085 R)
• M6: 1,912,010 km (0.093 R)
• M7: 2,586,996 km (0.118 R)
• M8: 3,155,917 km (0.106 R)
• M9: 3,752,064 km (0.117 R)
• M10: 5,052,518 km (0.103 R)
• M11: 5,599,299 km (0.055 R)
• M12: 6,035,077 km (0.097 R)
• M13: 6,892,572 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.2

Radius: 14.2

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.9 AU - 2.26 AU

Year: 1907 Days

Day: 13.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 48,743,998 km

• M1: 176,675 km (0.118 R)
• M2: 941,419 km (0.1 R)
• M3: 1,492,538 km (0.099 R)
• M4: 2,222,875 km (0.062 R)
• M5: 3,151,130 km (0.115 R)
• M6: 3,831,201 km (0.112 R)
• M7: 5,167,410 km (0.085 R)
• M8: 7,236,647 km (0.096 R)
• M9: 7,875,430 km (0.083 R)
• M10: 8,425,950 km (0.049 R)
• M11: 9,233,031 km (0.111 R)
• M12: 10,667,974 km (0.065 R)
• M13: 11,808,658 km (0.054 R)
• M14: 12,327,762 km (0.104 R)
• M15: 13,368,664 km (0.099 R)
• M16: 15,483,529 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 608.2

Radius: 9.7

Gravity: 6.46 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.12 AU - 3.36 AU

Year: 2884 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 48,743,998 km

• M1: 175,478 km (0.09 R)
• M2: 568,921 km (0.066 R)
• M3: 999,912 km (0.051 R)
• M4: 1,315,414 km (0.036 R)
• M5: 1,676,843 km (0.111 R)
• M6: 2,276,431 km (0.091 R)
• M7: 2,850,887 km (0.059 R)
• M8: 3,303,121 km (0.11 R)
• M9: 3,822,375 km (0.06 R)
• M10: 4,184,252 km (0.069 R)
• M11: 5,047,582 km (0.065 R)
• M12: 6,744,321 km (0.12 R)
• M13: 7,124,599 km (0.043 R)
• M14: 8,791,568 km (0.07 R)
• M15: 9,606,128 km (0.082 R)
• M16: 10,664,832 km (0.119 R)
• M17: 11,021,025 km (0.098 R)
• M18: 11,467,275 km (0.112 R)
• M19: 13,603,383 km (0.09 R)
• M20: 14,450,706 km (0.105 R)
• M21: 14,789,545 km (0.092 R)
• M22: 15,382,850 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.6

Radius: 13.8

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.6 AU - 5.64 AU

Year: 6314 Days

Day: 5 Hours

Environment

Temp: -220 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,743,998 km

• M1: 171,738 km (0.118 R)
• M2: 645,216 km (0.081 R)
• M3: 1,531,733 km (0.099 R)
• M4: 3,099,069 km (0.071 R)
• M5: 3,622,512 km (0.081 R)
• M6: 4,342,677 km (0.059 R)
• M7: 5,531,680 km (0.072 R)
• M8: 6,187,817 km (0.077 R)
• M9: 7,520,435 km (0.098 R)
• M10: 8,218,757 km (0.102 R)
• M11: 9,268,785 km (0.077 R)
• M12: 10,921,542 km (0.083 R)
• M13: 11,635,124 km (0.071 R)
• M14: 15,734,554 km (0.101 R)
• M15: 20,111,938 km (0.09 R)
• M16: 24,481,841 km (0.055 R)
• M17: 25,627,162 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 533.1

Radius: 5.3

Gravity: 18.98 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 6.91 AU - 6.97 AU

Year: 11624 Days

Day: 19 Hours

Environment

Temp: -214 °C

Axial Tilt: 67.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 48,743,998 km

• M1: 66,870 km (0.115 R)
• M2: 272,867 km (0.081 R)
• M3: 556,504 km (0.102 R)
• M4: 826,528 km (0.117 R)
• M5: 1,530,087 km (0.044 R)
• M6: 2,117,408 km (0.084 R)
• M7: 2,337,018 km (0.113 R)
• M8: 2,715,949 km (0.117 R)
• M9: 2,975,651 km (0.074 R)
• M10: 3,158,011 km (0.071 R)
• M11: 3,621,166 km (0.076 R)
• M12: 4,072,802 km (0.08 R)
• M13: 5,023,646 km (0.079 R)
• M14: 5,757,872 km (0.108 R)
• M15: 6,599,360 km (0.098 R)
• M16: 11,444,237 km (0.105 R)
• M17: 13,067,374 km (0.102 R)
• M18: 16,126,800 km (0.066 R)
• M19: 16,834,099 km (0.105 R)
• M20: 17,195,527 km (0.083 R)
• M21: 19,791,499 km (0.104 R)
• M22: 20,766,728 km (0.09 R)
• M23: 21,182,311 km (0.053 R)
• M24: 21,858,942 km (0.096 R)
• M25: 25,839,741 km (0.095 R)
• M26: 31,136,104 km (0.058 R)
• M27: 38,592,361 km (0.092 R)
• M28: 42,065,425 km (0.059 R)
• M29: 48,598,065 km (0.062 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 292 - 14,215 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit