🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.6 AU - 0.74 AU

Year: 354 Days

Day: 34.8 Hours

Environment

Temp: -142 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925

Radius: 13.1

Gravity: 5.39 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.56 AU - 0.8 AU

Year: 362 Days

Day: 6.3 Hours

Environment

Temp: -142 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,217,432 km

• M1: 162,912 km (0.046 R)
• M2: 744,249 km (0.063 R)
• M3: 1,355,955 km (0.104 R)
• M4: 1,842,747 km (0.056 R)
• M5: 2,310,390 km (0.106 R)
• M6: 3,772,410 km (0.072 R)
• M7: 4,551,216 km (0.067 R)
• M8: 5,148,710 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 92.9

Radius: 13.8

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.67 AU - 0.95 AU

Year: 471 Days

Day: 5.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,217,432 km

• M1: 171,589 km (0.081 R)
• M2: 626,665 km (0.054 R)
• M3: 1,073,365 km (0.107 R)
• M4: 1,704,369 km (0.074 R)
• M5: 2,138,352 km (0.057 R)
• M6: 2,902,498 km (0.03 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.1

Radius: 12.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.13 AU - 5.15 AU

Year: 5439 Days

Day: 9.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,217,432 km

• M1: 154,235 km (0.075 R)
• M2: 602,131 km (0.117 R)
• M3: 1,026,989 km (0.062 R)
• M4: 1,458,579 km (0.09 R)
• M5: 2,067,592 km (0.096 R)
• M6: 3,183,143 km (0.072 R)
• M7: 3,633,882 km (0.098 R)
• M8: 4,472,827 km (0.079 R)
• M9: 5,170,551 km (0.076 R)
• M10: 5,628,769 km (0.118 R)
• M11: 6,720,684 km (0.066 R)
• M12: 7,367,246 km (0.099 R)
• M13: 7,809,458 km (0.088 R)
• M14: 8,635,387 km (0.057 R)
• M15: 11,330,692 km (0.082 R)
• M16: 12,724,196 km (0.037 R)
• M17: 15,515,992 km (0.111 R)
• M18: 16,074,590 km (0.074 R)
• M19: 19,972,961 km (0.054 R)
• M20: 20,768,224 km (0.097 R)
• M21: 21,310,067 km (0.096 R)
• M22: 25,990,536 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.7

Radius: 11.2

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 4.39 AU - 4.47 AU

Year: 6020 Days

Day: 13 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,217,432 km

• M1: 142,567 km (0.106 R)
• M2: 626,067 km (0.059 R)
• M3: 2,479,136 km (0.072 R)
• M4: 2,911,923 km (0.088 R)
• M5: 3,891,340 km (0.072 R)
• M6: 4,911,597 km (0.038 R)
• M7: 5,781,210 km (0.056 R)
• M8: 7,632,783 km (0.054 R)
• M9: 8,487,734 km (0.089 R)
• M10: 9,515,472 km (0.094 R)
• M11: 11,945,390 km (0.065 R)
• M12: 12,960,561 km (0.099 R)
• M13: 17,380,729 km (0.117 R)
• M14: 20,850,951 km (0.064 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 223.9

Radius: 3.7

Gravity: 16.36 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.53 AU - 6.73 AU

Year: 11023 Days

Day: 16.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,217,432 km

• M1: 46,076 km (0.034 R)
• M2: 164,707 km (0.112 R)
• M3: 636,389 km (0.108 R)
• M4: 886,517 km (0.1 R)
• M5: 1,265,149 km (0.081 R)
• M6: 1,392,756 km (0.112 R)
• M7: 2,165,579 km (0.073 R)
• M8: 2,690,368 km (0.064 R)
• M9: 7,235,899 km (0.114 R)
• M10: 7,684,394 km (0.103 R)
• M11: 8,928,450 km (0.068 R)
• M12: 11,756,597 km (0.116 R)
• M13: 13,289,078 km (0.108 R)
• M14: 14,478,531 km (0.12 R)
• M15: 15,553,092 km (0.084 R)
• M16: 16,808,218 km (0.116 R)
• M17: 19,446,826 km (0.062 R)
• M18: 21,502,749 km (0.032 R)
• M19: 21,884,673 km (0.082 R)
• M20: 23,376,612 km (0.055 R)
• M21: 23,780,377 km (0.102 R)
• M22: 24,106,500 km (0.05 R)
• M23: 25,441,362 km (0.099 R)
• M24: 27,445,375 km (0.118 R)
• M25: 28,623,458 km (0.102 R)
• M26: 31,274,332 km (0.051 R)
• M27: 32,458,699 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 935.5

Radius: 4.5

Gravity: 46.2 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 6.09 AU - 9.71 AU

Year: 14337 Days

Day: 19.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 69,217,432 km

• M1: 67,768 km (0.099 R)
• M2: 214,972 km (0.109 R)
• M3: 417,976 km (0.113 R)
• M4: 825,481 km (0.099 R)
• M5: 2,687,975 km (0.116 R)
• M6: 3,881,466 km (0.086 R)
• M7: 4,412,389 km (0.046 R)
• M8: 5,540,806 km (0.041 R)
• M9: 5,771,935 km (0.093 R)
• M10: 10,343,646 km (0.079 R)
• M11: 13,443,463 km (0.082 R)
• M12: 13,861,140 km (0.088 R)
• M13: 21,299,296 km (0.085 R)
• M14: 21,676,432 km (0.038 R)
• M15: 27,879,658 km (0.098 R)
• M16: 28,672,377 km (0.117 R)
• M17: 29,596,742 km (0.085 R)
• M18: 30,660,084 km (0.069 R)
• M19: 31,626,336 km (0.05 R)
• M20: 34,647,166 km (0.116 R)
• M21: 38,407,907 km (0.076 R)
• M22: 40,099,560 km (0.105 R)
• M23: 46,254,016 km (0.105 R)
• M24: 58,715,818 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.8

Radius: 5.1

Gravity: 14.14 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 7.45 AU - 9.05 AU

Year: 15300 Days

Day: 22.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 69,217,432 km

• M1: 64,028 km (0.097 R)
• M2: 287,228 km (0.095 R)
• M3: 555,756 km (0.041 R)
• M4: 1,014,124 km (0.069 R)
• M5: 1,173,446 km (0.054 R)
• M6: 1,903,334 km (0.09 R)
• M7: 2,723,130 km (0.091 R)
• M8: 3,175,664 km (0.034 R)
• M9: 3,863,963 km (0.064 R)
• M10: 5,921,383 km (0.115 R)
• M11: 6,216,689 km (0.119 R)
• M12: 6,677,899 km (0.112 R)
• M13: 7,203,137 km (0.102 R)
• M14: 7,842,668 km (0.119 R)
• M15: 9,936,889 km (0.101 R)
• M16: 10,407,075 km (0.097 R)
• M17: 10,728,561 km (0.114 R)
• M18: 11,001,577 km (0.115 R)
• M19: 12,436,520 km (0.083 R)
• M20: 15,602,609 km (0.11 R)
• M21: 18,090,422 km (0.12 R)
• M22: 18,321,850 km (0.049 R)
• M23: 19,670,923 km (0.103 R)
• M24: 23,194,103 km (0.094 R)
• M25: 23,650,675 km (0.053 R)
• M26: 24,020,182 km (0.096 R)
• M27: 30,467,850 km (0.101 R)
• M28: 31,125,632 km (0.052 R)
• M29: 32,697,158 km (0.094 R)
• M30: 33,386,654 km (0.109 R)
• M31: 35,633,764 km (0.084 R)
• M32: 40,426,431 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 913.9

Radius: 7.8

Gravity: 15.02 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.12 AU - 11.56 AU

Year: 18430 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 69,217,432 km

• M1: 97,239 km (0.074 R)
• M2: 380,727 km (0.093 R)
• M3: 820,245 km (0.061 R)
• M4: 1,441,824 km (0.05 R)
• M5: 1,911,711 km (0.059 R)
• M6: 2,480,034 km (0.116 R)
• M7: 2,918,355 km (0.029 R)
• M8: 3,238,345 km (0.118 R)
• M9: 3,493,709 km (0.042 R)
• M10: 6,221,775 km (0.119 R)
• M11: 7,031,399 km (0.038 R)
• M12: 11,891,834 km (0.108 R)
• M13: 14,159,738 km (0.096 R)
• M14: 17,124,169 km (0.104 R)
• M15: 17,815,610 km (0.049 R)
• M16: 18,796,374 km (0.094 R)
• M17: 20,865,313 km (0.09 R)
• M18: 22,055,663 km (0.101 R)
• M19: 22,667,369 km (0.069 R)
• M20: 22,977,485 km (0.105 R)
• M21: 25,561,339 km (0.119 R)
• M22: 26,350,019 km (0.106 R)
• M23: 29,914,637 km (0.109 R)
• M24: 30,163,119 km (0.069 R)
• M25: 36,406,886 km (0.088 R)
• M26: 36,832,342 km (0.112 R)
• M27: 40,508,261 km (0.109 R)
• M28: 44,260,325 km (0.115 R)
• M29: 47,390,062 km (0.036 R)
• M30: 52,627,484 km (0.073 R)
• M31: 53,353,632 km (0.118 R)
• M32: 56,704,624 km (0.1 R)
• M33: 59,014,714 km (0.103 R)
• M34: 59,995,628 km (0.084 R)
• M35: 63,003,442 km (0.098 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.3

Radius: 7.1

Gravity: 10.96 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 7.94 AU - 11.34 AU

Year: 19326 Days

Day: 19.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 69,217,432 km

• M1: 88,263 km (0.066 R)
• M2: 371,452 km (0.079 R)
• M3: 896,839 km (0.113 R)
• M4: 1,155,494 km (0.11 R)
• M5: 1,479,373 km (0.12 R)
• M6: 1,862,942 km (0.076 R)
• M7: 2,108,133 km (0.1 R)
• M8: 2,853,579 km (0.115 R)
• M9: 4,887,662 km (0.111 R)
• M10: 5,283,498 km (0.101 R)
• M11: 6,180,038 km (0.073 R)
• M12: 8,122,117 km (0.081 R)
• M13: 8,885,964 km (0.08 R)
• M14: 10,206,315 km (0.055 R)
• M15: 11,278,782 km (0.111 R)
• M16: 12,689,490 km (0.107 R)
• M17: 13,230,436 km (0.044 R)
• M18: 14,649,970 km (0.08 R)
• M19: 18,985,466 km (0.082 R)
• M20: 19,425,583 km (0.075 R)
• M21: 21,728,941 km (0.056 R)
• M22: 22,502,961 km (0.103 R)
• M23: 23,698,098 km (0.106 R)
• M24: 30,916,046 km (0.051 R)
• M25: 32,516,593 km (0.104 R)
• M26: 33,401,016 km (0.068 R)
• M27: 39,758,476 km (0.065 R)
• M28: 41,061,474 km (0.054 R)
• M29: 42,094,298 km (0.119 R)
• M30: 44,058,368 km (0.112 R)
• M31: 46,717,769 km (0.1 R)
• M32: 49,648,242 km (0.079 R)
• M33: 56,594,520 km (0.095 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 15,697 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit