🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.65 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.99 AU - 1.59 AU

Year: 510 Days

Day: 12.2 Hours

Environment

Temp: 28 °C

Axial Tilt: 20.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.38

Radius: 1.41

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.56 AU - 2.34 AU

Year: 948 Days

Day: 13.7 Hours

Environment

Temp: -44 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 103,056,658 km

• M1: 47,423 km (0.097 R)
• M2: 589,864 km (0.105 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.07 AU - 2.25 AU

Year: 1106 Days

Day: 38.8 Hours

Environment

Temp: -60 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.41 AU - 4.15 AU

Year: 2559 Days

Day: 24.9 Hours

Environment

Temp: -115 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 3.18 AU - 4.64 AU

Year: 2693 Days

Day: 28.3 Hours

Environment

Temp: -100 °C

Axial Tilt: 33.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.55

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 3.97 AU - 4.41 AU

Year: 2987 Days

Day: 25.7 Hours

Environment

Temp: -108 °C

Axial Tilt: 21.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 103,056,658 km

• M1: 2,011,942 km (0.072 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.66 AU - 4.8 AU

Year: 3030 Days

Day: 20.8 Hours

Environment

Temp: -108 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 103,056,658 km

• M1: 336,894 km (0.117 R)

Asteroid Belt

Center: 6.15 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.8

Radius: 12.6

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.97 AU - 8.17 AU

Year: 7984 Days

Day: 13.3 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 103,056,658 km

• M1: 164,857 km (0.113 R)
• M2: 284,236 km (0.071 R)
• M3: 454,628 km (0.1 R)
• M4: 539,450 km (0.027 R)
• M5: 619,186 km (0.065 R)
• M6: 873,352 km (0.05 R)
• M7: 1,757,476 km (0.105 R)
• M8: 2,418,698 km (0.08 R)
• M9: 2,539,573 km (0.062 R)
• M10: 2,787,308 km (0.069 R)
• M11: 2,893,073 km (0.11 R)
• M12: 3,329,151 km (0.108 R)
• M13: 3,441,499 km (0.106 R)
• M14: 3,786,322 km (0.109 R)
• M15: 3,903,756 km (0.07 R)
• M16: 4,336,842 km (0.08 R)
• M17: 5,835,065 km (0.11 R)
• M18: 6,136,056 km (0.087 R)
• M19: 6,302,409 km (0.074 R)
• M20: 6,696,449 km (0.072 R)
• M21: 7,656,868 km (0.076 R)
• M22: 7,926,294 km (0.098 R)
• M23: 8,691,187 km (0.076 R)
• M24: 8,940,866 km (0.111 R)
• M25: 9,383,826 km (0.116 R)
• M26: 9,801,503 km (0.093 R)
• M27: 10,290,987 km (0.106 R)
• M28: 10,922,589 km (0.056 R)
• M29: 11,361,958 km (0.089 R)
• M30: 11,498,242 km (0.106 R)
• M31: 11,635,274 km (0.099 R)
• M32: 12,468,085 km (0.109 R)
• M33: 12,962,955 km (0.09 R)
• M34: 13,464,108 km (0.057 R)
• M35: 13,572,416 km (0.092 R)
• M36: 13,826,134 km (0.097 R)
• M37: 14,264,606 km (0.083 R)
• M38: 14,448,761 km (0.068 R)
• M39: 14,968,464 km (0.101 R)
• M40: 15,381,055 km (0.096 R)
• M41: 15,494,300 km (0.067 R)
• M42: 15,797,535 km (0.114 R)
• M43: 16,064,418 km (0.085 R)
• M44: 16,796,400 km (0.107 R)
• M45: 17,147,058 km (0.093 R)
• M46: 18,533,231 km (0.063 R)
• M47: 19,300,968 km (0.12 R)
• M48: 19,627,241 km (0.117 R)
• M49: 20,037,737 km (0.1 R)
• M50: 20,161,455 km (0.109 R)
• M51: 21,454,429 km (0.054 R)
• M52: 21,580,989 km (0.064 R)
• M53: 21,792,520 km (0.056 R)
• M54: 21,919,678 km (0.055 R)
• M55: 22,004,650 km (0.113 R)
• M56: 22,089,771 km (0.113 R)
• M57: 22,602,443 km (0.117 R)
• M58: 22,817,266 km (0.078 R)
• M59: 23,292,239 km (0.119 R)
• M60: 25,002,292 km (0.11 R)
• M61: 25,224,445 km (0.061 R)
• M62: 25,760,305 km (0.109 R)
• M63: 26,435,440 km (0.115 R)
• M64: 26,616,453 km (0.112 R)
• M65: 27,025,304 km (0.065 R)
• M66: 27,116,409 km (0.079 R)
• M67: 27,436,249 km (0.089 R)
• M68: 28,171,822 km (0.069 R)
• M69: 28,727,728 km (0.034 R)
• M70: 28,867,303 km (0.083 R)
• M71: 29,100,376 km (0.076 R)
• M72: 29,287,374 km (0.12 R)
• M73: 29,709,389 km (0.102 R)
• M74: 30,417,436 km (0.062 R)
• M75: 30,654,548 km (0.047 R)
• M76: 31,130,868 km (0.09 R)
• M77: 32,380,609 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 20.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 626.5

Radius: 3.9

Gravity: 41.19 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 17.41 AU - 24.13 AU

Year: 32965 Days

Day: 24.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 103,056,658 km

• M1: 96,341 km (0.061 R)
• M2: 237,711 km (0.092 R)
• M3: 276,756 km (0.091 R)
• M4: 1,638,695 km (0.049 R)
• M5: 1,956,291 km (0.111 R)
• M6: 1,997,281 km (0.079 R)
• M7: 2,467,318 km (0.052 R)
• M8: 2,876,169 km (0.079 R)
• M9: 3,017,239 km (0.119 R)
• M10: 3,257,194 km (0.084 R)
• M11: 3,404,100 km (0.045 R)
• M12: 3,503,283 km (0.109 R)
• M13: 4,065,621 km (0.09 R)
• M14: 5,736,031 km (0.063 R)
• M15: 6,032,684 km (0.114 R)
• M16: 6,213,099 km (0.116 R)
• M17: 6,702,882 km (0.055 R)
• M18: 7,719,101 km (0.037 R)
• M19: 7,980,598 km (0.106 R)
• M20: 8,850,360 km (0.102 R)
• M21: 9,331,018 km (0.115 R)
• M22: 9,609,419 km (0.117 R)
• M23: 10,389,273 km (0.089 R)
• M24: 11,115,571 km (0.1 R)
• M25: 12,616,785 km (0.118 R)
• M26: 13,704,811 km (0.084 R)
• M27: 14,580,556 km (0.053 R)
• M28: 15,638,662 km (0.094 R)
• M29: 16,218,504 km (0.073 R)
• M30: 16,301,979 km (0.118 R)
• M31: 17,484,850 km (0.103 R)
• M32: 17,741,859 km (0.077 R)
• M33: 18,957,790 km (0.109 R)
• M34: 22,020,657 km (0.108 R)
• M35: 22,856,759 km (0.07 R)
• M36: 23,231,801 km (0.118 R)
• M37: 23,703,334 km (0.108 R)
• M38: 23,797,880 km (0.115 R)
• M39: 26,010,133 km (0.064 R)
• M40: 28,588,602 km (0.117 R)
• M41: 28,790,260 km (0.116 R)
• M42: 30,215,329 km (0.111 R)
• M43: 30,317,953 km (0.08 R)
• M44: 30,523,650 km (0.085 R)
• M45: 31,663,137 km (0.07 R)
• M46: 31,871,826 km (0.097 R)
• M47: 32,185,683 km (0.068 R)
• M48: 34,518,512 km (0.111 R)
• M49: 34,733,334 km (0.115 R)
• M50: 34,948,606 km (0.089 R)
• M51: 37,565,372 km (0.092 R)
• M52: 43,795,076 km (0.11 R)
• M53: 45,431,078 km (0.112 R)
• M54: 45,548,662 km (0.083 R)
• M55: 45,666,396 km (0.043 R)
• M56: 48,762,623 km (0.117 R)
• M57: 53,532,102 km (0.118 R)
• M58: 54,029,665 km (0.079 R)
• M59: 57,300,622 km (0.085 R)
• M60: 59,731,288 km (0.103 R)
• M61: 61,543,666 km (0.108 R)
• M62: 61,673,817 km (0.098 R)
• M63: 61,804,116 km (0.044 R)
• M64: 63,900,282 km (0.075 R)
• M65: 64,957,191 km (0.099 R)
• M66: 67,088,063 km (0.081 R)
• M67: 68,027,537 km (0.088 R)
• M68: 70,872,141 km (0.103 R)
• M69: 72,103,032 km (0.119 R)
• M70: 72,240,213 km (0.086 R)
• M71: 75,837,893 km (0.05 R)
• M72: 78,503,577 km (0.05 R)
• M73: 78,927,238 km (0.11 R)
• M74: 79,635,135 km (0.085 R)
• M75: 80,487,245 km (0.09 R)
• M76: 80,772,079 km (0.106 R)
• M77: 80,914,496 km (0.114 R)
• M78: 82,057,424 km (0.096 R)
• M79: 82,487,518 km (0.104 R)
• M80: 83,205,737 km (0.056 R)
• M81: 84,648,609 km (0.083 R)
• M82: 85,373,111 km (0.095 R)
• M83: 86,682,392 km (0.084 R)
• M84: 86,974,257 km (0.046 R)
• M85: 89,320,999 km (0.108 R)
• M86: 90,354,122 km (0.116 R)
• M87: 92,134,486 km (0.109 R)
• M88: 93,776,622 km (0.047 R)
• M89: 99,981,942 km (0.098 R)
• M90: 102,130,915 km (0.055 R)
• M91: 102,285,001 km (0.073 R)

Kuiper Belt

Range: 31.5 - 50.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 15,322 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit