🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.1

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.42 AU - 0.66 AU

Year: 139 Days

Day: 36.8 Hours

Environment

Temp: 264 °C

Axial Tilt: 28.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.05

Radius: 1.33

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.77 AU - 4.19 AU

Year: 2778 Days

Day: 42.5 Hours

Environment

Temp: -113 °C

Axial Tilt: 44.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,869,391 km

• M1: 509,830 km (0.089 R)

Planet 3 - Ice Giant

Semi-Major Axis: 14.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 52.6

Radius: 4

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 13.87 AU - 14.91 AU

Year: 19097 Days

Day: 24.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,869,391 km

• M1: 49,816 km (0.077 R)
• M2: 192,981 km (0.05 R)
• M3: 466,596 km (0.072 R)
• M4: 1,164,769 km (0.103 R)
• M5: 2,083,749 km (0.113 R)
• M6: 2,790,299 km (0.089 R)
• M7: 3,847,358 km (0.082 R)
• M8: 4,252,170 km (0.119 R)
• M9: 5,287,537 km (0.111 R)
• M10: 5,757,124 km (0.111 R)
• M11: 7,297,384 km (0.091 R)
• M12: 8,727,989 km (0.111 R)
• M13: 9,174,688 km (0.101 R)
• M14: 15,722,587 km (0.082 R)
• M15: 17,503,400 km (0.039 R)
• M16: 18,475,337 km (0.088 R)
• M17: 19,008,055 km (0.09 R)
• M18: 23,104,045 km (0.092 R)
• M19: 23,878,363 km (0.063 R)
• M20: 24,035,441 km (0.106 R)
• M21: 25,807,428 km (0.098 R)

Planet 4 - Ice Giant

Semi-Major Axis: 16.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 645.6

Radius: 8

Gravity: 10.09 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 14.83 AU - 18.83 AU

Year: 24155 Days

Day: 18.7 Hours

Environment

Temp: -182 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 60,869,391 km

• M1: 101,727 km (0.03 R)
• M2: 974,929 km (0.104 R)
• M3: 1,253,181 km (0.101 R)
• M4: 1,818,811 km (0.056 R)
• M5: 2,404,038 km (0.114 R)
• M6: 3,333,789 km (0.078 R)
• M7: 3,880,120 km (0.073 R)
• M8: 4,810,020 km (0.084 R)
• M9: 5,387,019 km (0.081 R)
• M10: 6,959,891 km (0.052 R)
• M11: 13,039,698 km (0.084 R)
• M12: 16,081,023 km (0.046 R)
• M13: 21,029,122 km (0.101 R)
• M14: 31,640,847 km (0.118 R)
• M15: 34,065,978 km (0.061 R)
• M16: 35,607,584 km (0.1 R)
• M17: 46,014,360 km (0.078 R)
• M18: 46,522,544 km (0.104 R)
• M19: 50,904,864 km (0.05 R)
• M20: 51,448,503 km (0.119 R)
• M21: 53,662,103 km (0.063 R)
• M22: 62,115,280 km (0.079 R)
• M23: 71,867,715 km (0.074 R)
• M24: 75,097,981 km (0.079 R)
• M25: 79,391,590 km (0.104 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.4

Radius: 8

Gravity: 12.71 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 15.87 AU - 18.55 AU

Year: 24977 Days

Day: 22.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,869,391 km

• M1: 99,632 km (0.099 R)
• M2: 599,738 km (0.05 R)
• M3: 951,592 km (0.111 R)
• M4: 2,423,486 km (0.056 R)
• M5: 3,244,927 km (0.097 R)
• M6: 6,438,992 km (0.101 R)
• M7: 6,965,726 km (0.104 R)
• M8: 7,264,921 km (0.065 R)
• M9: 7,942,749 km (0.057 R)
• M10: 11,352,085 km (0.049 R)
• M11: 11,767,219 km (0.092 R)
• M12: 12,120,719 km (0.04 R)
• M13: 17,204,354 km (0.119 R)
• M14: 19,960,245 km (0.119 R)
• M15: 20,565,219 km (0.096 R)
• M16: 30,232,832 km (0.111 R)
• M17: 30,629,865 km (0.065 R)
• M18: 31,299,315 km (0.089 R)
• M19: 37,770,470 km (0.113 R)
• M20: 39,007,196 km (0.106 R)
• M21: 39,477,831 km (0.064 R)
• M22: 46,823,086 km (0.093 R)
• M23: 52,702,881 km (0.116 R)
• M24: 53,470,917 km (0.092 R)
• M25: 64,143,677 km (0.043 R)
• M26: 70,207,178 km (0.064 R)
• M27: 72,310,375 km (0.043 R)
• M28: 73,974,801 km (0.114 R)
• M29: 79,121,416 km (0.088 R)
• M30: 86,880,310 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 20.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.8

Radius: 7.8

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 19.42 AU - 21.3 AU

Year: 32140 Days

Day: 24 Hours

Environment

Temp: -187 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 60,869,391 km

• M1: 96,939 km (0.101 R)
• M2: 439,818 km (0.043 R)
• M3: 1,533,677 km (0.093 R)
• M4: 3,327,505 km (0.099 R)
• M5: 4,254,863 km (0.053 R)
• M6: 4,599,536 km (0.119 R)
• M7: 5,634,903 km (0.118 R)
• M8: 5,897,298 km (0.112 R)
• M9: 8,017,099 km (0.108 R)
• M10: 8,592,902 km (0.099 R)
• M11: 10,152,908 km (0.102 R)
• M12: 11,832,144 km (0.099 R)
• M13: 12,963,104 km (0.104 R)
• M14: 15,220,686 km (0.114 R)
• M15: 18,870,575 km (0.082 R)
• M16: 21,848,171 km (0.114 R)
• M17: 33,604,918 km (0.099 R)
• M18: 35,224,015 km (0.078 R)
• M19: 44,252,546 km (0.083 R)
• M20: 46,652,395 km (0.068 R)
• M21: 53,529,110 km (0.06 R)

Kuiper Belt

Range: 31.4 - 52.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 216 - 17,665 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit