🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.22 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 2.27 AU - 2.61 AU

Year: 1676 Days

Day: 33.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 83,084,756 km

• M1: 35,903 km (0.079 R)
• M2: 571,015 km (0.025 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.4

Radius: 9.1

Gravity: 7.38 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 2.65 AU - 3.09 AU

Year: 2138 Days

Day: 13.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,084,756 km

• M1: 113,246 km (0.116 R)
• M2: 411,245 km (0.089 R)
• M3: 734,825 km (0.049 R)
• M4: 1,576,762 km (0.112 R)
• M5: 1,936,844 km (0.077 R)
• M6: 2,484,521 km (0.118 R)
• M7: 3,132,131 km (0.116 R)
• M8: 4,230,329 km (0.09 R)
• M9: 4,718,317 km (0.032 R)
• M10: 5,220,666 km (0.114 R)
• M11: 5,782,406 km (0.046 R)
• M12: 6,436,000 km (0.1 R)
• M13: 7,026,612 km (0.111 R)
• M14: 7,653,128 km (0.082 R)
• M15: 8,192,877 km (0.113 R)
• M16: 9,115,746 km (0.105 R)
• M17: 10,177,143 km (0.068 R)
• M18: 11,091,635 km (0.041 R)
• M19: 11,822,421 km (0.111 R)
• M20: 14,476,436 km (0.099 R)
• M21: 15,679,054 km (0.094 R)
• M22: 16,158,964 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.8

Radius: 8.8

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.69 AU - 5.57 AU

Year: 5109 Days

Day: 12.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,084,756 km

• M1: 109,506 km (0.098 R)
• M2: 626,217 km (0.106 R)
• M3: 1,434,943 km (0.081 R)
• M4: 1,807,741 km (0.066 R)
• M5: 2,750,506 km (0.032 R)
• M6: 3,597,230 km (0.075 R)
• M7: 4,291,514 km (0.037 R)
• M8: 5,233,682 km (0.118 R)
• M9: 7,145,991 km (0.027 R)
• M10: 7,592,092 km (0.066 R)
• M11: 8,203,349 km (0.092 R)
• M12: 9,523,999 km (0.069 R)
• M13: 10,802,313 km (0.086 R)
• M14: 11,207,274 km (0.085 R)
• M15: 13,905,421 km (0.098 R)
• M16: 15,041,019 km (0.101 R)
• M17: 18,180,330 km (0.054 R)
• M18: 21,660,425 km (0.062 R)
• M19: 23,631,826 km (0.117 R)
• M20: 24,699,656 km (0.048 R)
• M21: 27,676,504 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 414.9

Radius: 15

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 5.86 AU - 7.3 AU

Year: 7422 Days

Day: 6 Hours

Environment

Temp: -177 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 83,084,756 km

• M1: 187,147 km (0.098 R)
• M2: 715,527 km (0.054 R)
• M3: 1,508,994 km (0.12 R)
• M4: 2,334,176 km (0.054 R)
• M5: 3,158,909 km (0.116 R)
• M6: 3,957,911 km (0.099 R)
• M7: 4,597,591 km (0.048 R)
• M8: 6,975,898 km (0.116 R)
• M9: 7,838,629 km (0.028 R)
• M10: 8,933,985 km (0.095 R)
• M11: 11,093,729 km (0.042 R)
• M12: 13,746,100 km (0.096 R)
• M13: 15,219,938 km (0.069 R)
• M14: 17,048,921 km (0.091 R)
• M15: 19,710,267 km (0.039 R)
• M16: 21,582,186 km (0.078 R)
• M17: 25,098,184 km (0.082 R)
• M18: 27,819,669 km (0.098 R)
• M19: 28,440,201 km (0.088 R)
• M20: 29,070,157 km (0.114 R)
• M21: 31,875,417 km (0.055 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.6

Radius: 8.2

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.78 AU - 8.7 AU

Year: 8566 Days

Day: 5.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,084,756 km

• M1: 102,923 km (0.099 R)
• M2: 633,248 km (0.117 R)
• M3: 928,704 km (0.05 R)
• M4: 1,377,497 km (0.041 R)
• M5: 2,443,083 km (0.117 R)
• M6: 2,912,671 km (0.115 R)
• M7: 3,213,661 km (0.052 R)
• M8: 4,270,570 km (0.117 R)
• M9: 5,013,025 km (0.089 R)
• M10: 6,214,146 km (0.059 R)
• M11: 7,839,078 km (0.105 R)
• M12: 11,371,981 km (0.092 R)
• M13: 13,191,690 km (0.119 R)
• M14: 13,542,347 km (0.07 R)
• M15: 16,575,145 km (0.07 R)
• M16: 16,914,882 km (0.095 R)
• M17: 20,574,195 km (0.098 R)
• M18: 21,686,306 km (0.116 R)
• M19: 22,257,171 km (0.104 R)
• M20: 23,771,102 km (0.087 R)
• M21: 31,439,489 km (0.118 R)
• M22: 36,912,975 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.4

Radius: 8.6

Gravity: 9.08 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 6.37 AU - 9.99 AU

Year: 10287 Days

Day: 7 Hours

Environment

Temp: -193 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 83,084,756 km

• M1: 109,356 km (0.109 R)
• M2: 423,512 km (0.081 R)
• M3: 1,251,386 km (0.119 R)
• M4: 1,831,078 km (0.067 R)
• M5: 2,182,633 km (0.116 R)
• M6: 3,797,243 km (0.084 R)
• M7: 5,006,143 km (0.12 R)
• M8: 7,944,096 km (0.034 R)
• M9: 8,838,990 km (0.112 R)
• M10: 9,949,306 km (0.11 R)
• M11: 11,589,646 km (0.105 R)
• M12: 14,408,818 km (0.084 R)
• M13: 15,195,853 km (0.085 R)
• M14: 17,952,343 km (0.105 R)
• M15: 22,905,528 km (0.095 R)
• M16: 27,589,737 km (0.119 R)
• M17: 29,421,264 km (0.066 R)
• M18: 35,992,051 km (0.047 R)
• M19: 37,194,818 km (0.059 R)
• M20: 41,484,836 km (0.064 R)
• M21: 42,142,319 km (0.115 R)
• M22: 47,942,078 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 546.7

Radius: 5.1

Gravity: 21.02 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 11.28 AU - 18.72 AU

Year: 25545 Days

Day: 17.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 83,084,756 km

• M1: 63,429 km (0.091 R)
• M2: 267,631 km (0.11 R)
• M3: 429,645 km (0.12 R)
• M4: 747,690 km (0.116 R)
• M5: 1,086,829 km (0.037 R)
• M6: 2,216,592 km (0.058 R)
• M7: 2,835,179 km (0.06 R)
• M8: 3,129,139 km (0.106 R)
• M9: 3,562,224 km (0.104 R)
• M10: 4,337,291 km (0.066 R)
• M11: 4,727,742 km (0.087 R)
• M12: 5,297,560 km (0.095 R)
• M13: 6,083,397 km (0.038 R)
• M14: 9,418,084 km (0.05 R)
• M15: 10,883,095 km (0.108 R)
• M16: 11,602,661 km (0.049 R)
• M17: 12,563,828 km (0.095 R)
• M18: 16,094,936 km (0.114 R)
• M19: 18,631,068 km (0.037 R)
• M20: 23,074,275 km (0.106 R)
• M21: 26,865,085 km (0.03 R)
• M22: 30,793,525 km (0.076 R)
• M23: 32,893,879 km (0.099 R)
• M24: 34,392,251 km (0.076 R)
• M25: 40,531,598 km (0.025 R)
• M26: 41,778,347 km (0.094 R)
• M27: 42,729,939 km (0.098 R)
• M28: 46,511,923 km (0.056 R)
• M29: 46,850,912 km (0.07 R)
• M30: 49,446,435 km (0.102 R)
• M31: 59,383,623 km (0.088 R)
• M32: 64,922,185 km (0.091 R)
• M33: 65,133,716 km (0.104 R)
• M34: 73,975,399 km (0.12 R)
• M35: 75,834,751 km (0.054 R)
• M36: 80,131,651 km (0.093 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 11,588 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit