🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.42 AU - 0.68 AU

Year: 147 Days

Day: 27.4 Hours

Environment

Temp: 231 °C

Axial Tilt: 0.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 82,785,361 km

• M1: 33,061 km (0.111 R)
• M2: 260,899 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.75

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.66 AU - 0.98 AU

Year: 267 Days

Day: 47.2 Hours

Environment

Temp: 113 °C

Axial Tilt: 34.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.16 AU - 2.48 AU

Year: 1272 Days

Day: 42.6 Hours

Environment

Temp: -84 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 3.37 AU - 3.73 AU

Year: 2407 Days

Day: 19.8 Hours

Environment

Temp: -102 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500.4

Radius: 10.7

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 6.48 AU - 9.96 AU

Year: 8482 Days

Day: 11.8 Hours

Environment

Temp: -162 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 82,785,361 km

• M1: 133,142 km (0.112 R)
• M2: 474,973 km (0.056 R)
• M3: 900,280 km (0.105 R)
• M4: 1,432,100 km (0.081 R)
• M5: 1,771,688 km (0.112 R)
• M6: 2,490,805 km (0.078 R)
• M7: 2,948,424 km (0.093 R)
• M8: 3,507,023 km (0.039 R)
• M9: 3,959,108 km (0.097 R)
• M10: 4,696,027 km (0.086 R)
• M11: 5,216,478 km (0.038 R)
• M12: 6,794,436 km (0.076 R)
• M13: 7,499,640 km (0.108 R)
• M14: 8,882,673 km (0.086 R)
• M15: 9,231,385 km (0.109 R)
• M16: 12,522,987 km (0.057 R)
• M17: 14,105,284 km (0.098 R)
• M18: 15,439,099 km (0.069 R)
• M19: 16,201,001 km (0.106 R)
• M20: 20,847,361 km (0.067 R)
• M21: 22,015,271 km (0.091 R)
• M22: 24,226,478 km (0.063 R)
• M23: 24,651,635 km (0.07 R)
• M24: 25,429,394 km (0.118 R)
• M25: 33,182,902 km (0.093 R)
• M26: 34,451,193 km (0.115 R)
• M27: 36,302,915 km (0.052 R)
• M28: 36,636,519 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.2

Radius: 13.5

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 8.93 AU - 14.11 AU

Year: 14072 Days

Day: 13.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 63.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,785,361 km

• M1: 183,108 km (0.075 R)
• M2: 638,035 km (0.105 R)
• M3: 1,156,092 km (0.091 R)
• M4: 1,943,127 km (0.087 R)
• M5: 3,042,671 km (0.111 R)
• M6: 3,770,614 km (0.096 R)
• M7: 6,032,085 km (0.084 R)
• M8: 7,022,423 km (0.087 R)
• M9: 7,726,580 km (0.103 R)
• M10: 8,800,693 km (0.034 R)
• M11: 9,228,244 km (0.109 R)
• M12: 10,542,461 km (0.116 R)
• M13: 10,970,909 km (0.092 R)
• M14: 12,682,758 km (0.104 R)
• M15: 14,370,072 km (0.081 R)
• M16: 17,732,284 km (0.067 R)
• M17: 18,493,588 km (0.119 R)
• M18: 20,909,145 km (0.119 R)
• M19: 25,010,670 km (0.096 R)
• M20: 25,582,582 km (0.099 R)
• M21: 26,065,634 km (0.064 R)
• M22: 28,059,474 km (0.114 R)
• M23: 43,973,845 km (0.093 R)
• M24: 44,807,255 km (0.059 R)
• M25: 45,228,074 km (0.12 R)
• M26: 46,219,908 km (0.059 R)
• M27: 47,953,897 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 194.4

Radius: 7.9

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 12.35 AU - 14.17 AU

Year: 17377 Days

Day: 20.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,785,361 km

• M1: 119,828 km (0.12 R)
• M2: 2,494,096 km (0.097 R)
• M3: 5,641,934 km (0.046 R)
• M4: 5,914,501 km (0.057 R)
• M5: 6,160,291 km (0.107 R)
• M6: 8,292,360 km (0.071 R)
• M7: 8,735,169 km (0.079 R)
• M8: 10,978,240 km (0.116 R)
• M9: 12,923,461 km (0.111 R)
• M10: 13,701,220 km (0.098 R)
• M11: 16,221,645 km (0.083 R)
• M12: 18,657,697 km (0.091 R)
• M13: 29,706,547 km (0.105 R)
• M14: 37,953,279 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 613.2

Radius: 4.6

Gravity: 28.98 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 15.27 AU - 17.61 AU

Year: 23990 Days

Day: 23.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 82,785,361 km

• M1: 61,036 km (0.043 R)
• M2: 238,908 km (0.075 R)
• M3: 508,184 km (0.046 R)
• M4: 689,646 km (0.077 R)
• M5: 834,307 km (0.084 R)
• M6: 1,396,945 km (0.091 R)
• M7: 1,667,567 km (0.042 R)
• M8: 3,454,364 km (0.09 R)
• M9: 4,560,940 km (0.119 R)
• M10: 4,778,156 km (0.106 R)
• M11: 5,272,727 km (0.091 R)
• M12: 5,970,002 km (0.108 R)
• M13: 8,923,363 km (0.099 R)
• M14: 10,460,332 km (0.103 R)
• M15: 11,423,144 km (0.116 R)
• M16: 12,234,563 km (0.079 R)
• M17: 13,156,385 km (0.091 R)
• M18: 15,866,799 km (0.109 R)
• M19: 17,221,258 km (0.074 R)
• M20: 17,837,302 km (0.032 R)
• M21: 24,606,007 km (0.081 R)
• M22: 25,050,313 km (0.093 R)
• M23: 30,678,783 km (0.108 R)
• M24: 32,239,837 km (0.05 R)
• M25: 34,127,164 km (0.104 R)
• M26: 39,467,209 km (0.119 R)
• M27: 40,228,962 km (0.065 R)
• M28: 46,341,680 km (0.092 R)
• M29: 47,874,909 km (0.083 R)
• M30: 48,393,415 km (0.109 R)
• M31: 49,617,724 km (0.073 R)
• M32: 54,346,363 km (0.109 R)
• M33: 55,668,808 km (0.102 R)
• M34: 58,378,026 km (0.116 R)
• M35: 62,398,768 km (0.064 R)
• M36: 67,246,188 km (0.043 R)
• M37: 68,332,268 km (0.045 R)
• M38: 68,550,831 km (0.034 R)
• M39: 69,650,824 km (0.1 R)
• M40: 72,338,649 km (0.083 R)
• M41: 80,815,762 km (0.078 R)

Kuiper Belt

Range: 30.5 - 59.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 346 - 17,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit