🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.9

Radius: 1.72

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.55 AU - 0.63 AU

Year: 174 Days

Day: 22.5 Hours

Environment

Temp: 135 °C

Axial Tilt: 38.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.08

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.59 AU - 0.81 AU

Year: 224 Days

Day: 12.6 Hours

Environment

Temp: 135 °C

Axial Tilt: 4.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.59 AU - 0.91 AU

Year: 249 Days

Day: 29.3 Hours

Environment

Temp: 82 °C

Axial Tilt: 1.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,957,314 km

• M1: 37,399 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.13

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.77 AU - 0.85 AU

Year: 279 Days

Day: 25.2 Hours

Environment

Temp: 47 °C

Axial Tilt: 54.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 81,957,314 km

• M1: 112,797 km (0.071 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.46 AU - 1.92 AU

Year: 841 Days

Day: 13 Hours

Environment

Temp: -68 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.54 AU - 2.26 AU

Year: 1003 Days

Day: 40.5 Hours

Environment

Temp: -79 °C

Axial Tilt: 133.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.72 AU - 2.66 AU

Year: 1241 Days

Day: 39.9 Hours

Environment

Temp: -88 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.19 AU - 3.25 AU

Year: 2212 Days

Day: 36.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 81,957,314 km

• M1: 631,153 km (0.067 R)
• M2: 828,623 km (0.038 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.7

Radius: 14.4

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.13 AU - 5.93 AU

Year: 4319 Days

Day: 10 Hours

Environment

Temp: -139 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 81,957,314 km

• M1: 183,108 km (0.119 R)
• M2: 276,457 km (0.111 R)
• M3: 398,828 km (0.075 R)
• M4: 606,470 km (0.113 R)
• M5: 736,620 km (0.116 R)
• M6: 981,811 km (0.054 R)
• M7: 1,090,269 km (0.054 R)
• M8: 1,294,321 km (0.11 R)
• M9: 1,414,897 km (0.099 R)
• M10: 1,682,677 km (0.082 R)
• M11: 1,906,176 km (0.076 R)
• M12: 2,300,815 km (0.044 R)
• M13: 2,567,249 km (0.113 R)
• M14: 2,879,310 km (0.051 R)
• M15: 3,094,282 km (0.101 R)
• M16: 3,483,536 km (0.059 R)
• M17: 3,578,531 km (0.065 R)
• M18: 3,967,635 km (0.095 R)
• M19: 4,147,152 km (0.109 R)
• M20: 4,618,535 km (0.039 R)
• M21: 5,150,505 km (0.104 R)
• M22: 5,523,602 km (0.115 R)
• M23: 5,747,101 km (0.089 R)
• M24: 5,905,526 km (0.091 R)
• M25: 6,342,651 km (0.066 R)
• M26: 6,671,467 km (0.097 R)
• M27: 6,838,119 km (0.083 R)
• M28: 6,933,861 km (0.111 R)
• M29: 7,444,289 km (0.059 R)
• M30: 8,017,399 km (0.09 R)
• M31: 8,143,958 km (0.116 R)
• M32: 8,347,711 km (0.049 R)
• M33: 8,812,362 km (0.108 R)
• M34: 9,179,774 km (0.097 R)
• M35: 9,285,689 km (0.065 R)
• M36: 9,686,462 km (0.117 R)
• M37: 9,821,250 km (0.094 R)
• M38: 9,983,863 km (0.054 R)
• M39: 10,092,920 km (0.055 R)
• M40: 10,394,509 km (0.114 R)
• M41: 11,119,311 km (0.076 R)
• M42: 11,573,639 km (0.061 R)
• M43: 11,774,250 km (0.028 R)
• M44: 12,441,756 km (0.113 R)
• M45: 12,735,716 km (0.101 R)
• M46: 12,883,668 km (0.112 R)
• M47: 14,486,459 km (0.12 R)
• M48: 14,579,060 km (0.12 R)
• M49: 15,138,856 km (0.118 R)
• M50: 15,452,862 km (0.087 R)
• M51: 16,183,348 km (0.101 R)
• M52: 16,504,535 km (0.102 R)
• M53: 17,185,803 km (0.09 R)
• M54: 17,711,042 km (0.074 R)
• M55: 18,743,865 km (0.091 R)
• M56: 18,844,844 km (0.038 R)
• M57: 19,250,553 km (0.097 R)
• M58: 19,454,605 km (0.067 R)
• M59: 19,659,255 km (0.093 R)
• M60: 19,830,395 km (0.095 R)
• M61: 20,589,305 km (0.097 R)
• M62: 21,851,611 km (0.074 R)
• M63: 21,993,281 km (0.051 R)
• M64: 22,456,286 km (0.116 R)
• M65: 22,671,109 km (0.072 R)
• M66: 23,174,954 km (0.108 R)
• M67: 23,428,223 km (0.118 R)
• M68: 23,609,686 km (0.076 R)
• M69: 23,755,244 km (0.119 R)
• M70: 24,157,064 km (0.066 R)
• M71: 24,413,774 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 632.1

Radius: 4

Gravity: 39.51 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 12.69 AU - 18.23 AU

Year: 23275 Days

Day: 17.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 20.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 81,957,314 km

• M1: 108,309 km (0.102 R)
• M2: 433,535 km (0.047 R)
• M3: 518,656 km (0.066 R)
• M4: 609,163 km (0.045 R)
• M5: 680,521 km (0.057 R)
• M6: 2,115,463 km (0.052 R)
• M7: 2,372,772 km (0.113 R)
• M8: 3,888,946 km (0.099 R)
• M9: 4,203,102 km (0.086 R)
• M10: 4,572,160 km (0.071 R)
• M11: 4,666,107 km (0.094 R)
• M12: 4,999,710 km (0.098 R)
• M13: 5,994,686 km (0.099 R)
• M14: 6,149,071 km (0.102 R)
• M15: 6,514,538 km (0.086 R)
• M16: 6,673,262 km (0.116 R)
• M17: 6,994,598 km (0.096 R)
• M18: 9,321,144 km (0.079 R)
• M19: 10,288,145 km (0.119 R)
• M20: 10,845,995 km (0.117 R)
• M21: 11,990,868 km (0.116 R)
• M22: 12,709,087 km (0.054 R)
• M23: 15,789,158 km (0.084 R)
• M24: 16,647,700 km (0.103 R)
• M25: 17,155,285 km (0.077 R)
• M26: 17,668,107 km (0.101 R)
• M27: 18,037,464 km (0.105 R)
• M28: 18,633,761 km (0.1 R)
• M29: 18,708,710 km (0.065 R)
• M30: 19,085,098 km (0.049 R)
• M31: 19,236,341 km (0.091 R)
• M32: 20,229,372 km (0.103 R)
• M33: 20,538,292 km (0.103 R)
• M34: 23,064,701 km (0.101 R)
• M35: 23,387,383 km (0.032 R)
• M36: 23,711,412 km (0.055 R)
• M37: 24,364,108 km (0.081 R)
• M38: 24,692,774 km (0.108 R)
• M39: 26,273,425 km (0.094 R)
• M40: 26,525,946 km (0.092 R)
• M41: 27,203,326 km (0.069 R)
• M42: 28,661,606 km (0.078 R)
• M43: 28,834,840 km (0.092 R)
• M44: 29,618,733 km (0.078 R)
• M45: 29,793,762 km (0.102 R)
• M46: 30,145,168 km (0.081 R)
• M47: 30,763,157 km (0.073 R)
• M48: 31,118,302 km (0.071 R)
• M49: 31,832,482 km (0.069 R)
• M50: 32,011,850 km (0.049 R)
• M51: 33,550,314 km (0.103 R)
• M52: 34,282,446 km (0.079 R)
• M53: 35,112,565 km (0.118 R)
• M54: 36,042,615 km (0.087 R)
• M55: 36,229,463 km (0.071 R)
• M56: 37,736,960 km (0.096 R)
• M57: 37,926,800 km (0.108 R)
• M58: 39,553,378 km (0.113 R)
• M59: 40,229,710 km (0.113 R)
• M60: 40,423,738 km (0.11 R)
• M61: 40,715,155 km (0.119 R)
• M62: 42,973,185 km (0.111 R)
• M63: 43,270,586 km (0.064 R)
• M64: 45,271,457 km (0.111 R)
• M65: 48,225,566 km (0.057 R)
• M66: 48,534,785 km (0.107 R)
• M67: 48,844,602 km (0.098 R)
• M68: 50,717,119 km (0.117 R)
• M69: 52,401,292 km (0.071 R)
• M70: 52,613,122 km (0.096 R)
• M71: 52,931,317 km (0.101 R)
• M72: 54,854,248 km (0.042 R)
• M73: 55,824,241 km (0.109 R)
• M74: 57,453,361 km (0.107 R)
• M75: 57,781,130 km (0.069 R)
• M76: 59,428,951 km (0.096 R)
• M77: 59,760,310 km (0.099 R)
• M78: 59,981,715 km (0.075 R)
• M79: 61,538,281 km (0.077 R)
• M80: 64,237,475 km (0.041 R)
• M81: 68,705,515 km (0.113 R)
• M82: 69,634,218 km (0.056 R)
• M83: 71,152,487 km (0.053 R)
• M84: 73,154,107 km (0.119 R)
• M85: 75,532,713 km (0.079 R)
• M86: 76,131,254 km (0.088 R)
• M87: 77,574,425 km (0.107 R)
• M88: 79,999,406 km (0.11 R)
• M89: 80,121,328 km (0.076 R)
• M90: 80,976,430 km (0.09 R)
• M91: 81,098,801 km (0.056 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 239 - 20,056 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit