🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.7

Radius: 11.2

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.51 AU - 0.57 AU

Year: 265 Days

Day: 8.2 Hours

Environment

Temp: -154 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 43,304,858 km

• M1: 141,819 km (0.1 R)
• M2: 507,286 km (0.034 R)
• M3: 1,008,290 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.7

Radius: 10.6

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 8.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 49 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,304,858 km

• M1: 133,292 km (0.097 R)
• M2: 488,287 km (0.063 R)
• M3: 918,830 km (0.098 R)
• M4: 1,265,748 km (0.094 R)
• M5: 1,622,838 km (0.091 R)
• M6: 2,009,698 km (0.085 R)
• M7: 2,414,958 km (0.1 R)
• M8: 2,787,756 km (0.08 R)
• M9: 3,178,057 km (0.073 R)
• M10: 3,593,341 km (0.097 R)
• M11: 4,107,060 km (0.072 R)
• M12: 4,710,239 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.1

Radius: 15

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.46 AU - 0.72 AU

Year: 302 Days

Day: 12.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 85 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,304,858 km

• M1: 186,549 km (0.115 R)
• M2: 656,585 km (0.111 R)
• M3: 1,353,861 km (0.1 R)
• M4: 2,074,623 km (0.114 R)
• M5: 2,622,301 km (0.08 R)
• M6: 3,227,125 km (0.118 R)
• M7: 3,703,146 km (0.082 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.3

Radius: 13.2

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.33 AU - 1.47 AU

Year: 1105 Days

Day: 10.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 43,304,858 km

• M1: 164,109 km (0.063 R)
• M2: 704,456 km (0.113 R)
• M3: 1,242,410 km (0.059 R)
• M4: 1,694,944 km (0.098 R)
• M5: 2,360,954 km (0.072 R)
• M6: 3,168,184 km (0.098 R)
• M7: 4,378,879 km (0.039 R)
• M8: 5,249,688 km (0.051 R)
• M9: 5,684,121 km (0.104 R)
• M10: 8,313,154 km (0.062 R)
• M11: 11,494,352 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.6

Radius: 8

Gravity: 6.59 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 2.39 AU - 3.45 AU

Year: 3327 Days

Day: 8.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 179.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 43,304,858 km

• M1: 99,483 km (0.072 R)
• M2: 392,994 km (0.044 R)
• M3: 844,929 km (0.057 R)
• M4: 1,461,721 km (0.11 R)
• M5: 1,970,802 km (0.07 R)
• M6: 2,226,914 km (0.051 R)
• M7: 3,340,221 km (0.088 R)
• M8: 4,100,029 km (0.115 R)
• M9: 4,586,372 km (0.114 R)
• M10: 5,302,048 km (0.092 R)
• M11: 8,251,519 km (0.115 R)
• M12: 9,414,493 km (0.055 R)
• M13: 10,997,388 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.1

Radius: 13.4

Gravity: 4.75 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.6 AU - 4.14 AU

Year: 4125 Days

Day: 11.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,304,858 km

• M1: 176,825 km (0.113 R)
• M2: 648,806 km (0.119 R)
• M3: 1,114,803 km (0.109 R)
• M4: 1,570,628 km (0.029 R)
• M5: 2,720,437 km (0.059 R)
• M6: 4,917,731 km (0.047 R)
• M7: 5,736,779 km (0.025 R)
• M8: 6,179,439 km (0.07 R)
• M9: 6,644,988 km (0.064 R)
• M10: 7,858,975 km (0.069 R)
• M11: 9,215,678 km (0.1 R)
• M12: 10,461,230 km (0.111 R)
• M13: 11,215,352 km (0.096 R)
• M14: 12,536,152 km (0.075 R)
• M15: 13,438,377 km (0.115 R)
• M16: 16,701,555 km (0.087 R)
• M17: 21,710,690 km (0.071 R)
• M18: 22,499,669 km (0.073 R)
• M19: 25,216,067 km (0.066 R)
• M20: 27,808,299 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.7

Radius: 14

Gravity: 2.16 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.26 AU - 5.08 AU

Year: 5679 Days

Day: 8.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 43,304,858 km

• M1: 174,431 km (0.049 R)
• M2: 703,858 km (0.112 R)
• M3: 2,134,762 km (0.044 R)
• M4: 2,643,245 km (0.059 R)
• M5: 3,156,814 km (0.086 R)
• M6: 3,779,740 km (0.068 R)
• M7: 4,317,544 km (0.088 R)
• M8: 4,754,220 km (0.113 R)
• M9: 6,155,653 km (0.115 R)
• M10: 6,839,315 km (0.117 R)
• M11: 7,817,386 km (0.086 R)
• M12: 8,285,179 km (0.117 R)
• M13: 9,198,324 km (0.108 R)
• M14: 10,868,136 km (0.089 R)
• M15: 14,964,873 km (0.069 R)
• M16: 18,124,680 km (0.117 R)
• M17: 19,860,613 km (0.11 R)
• M18: 21,775,616 km (0.072 R)
• M19: 22,923,630 km (0.117 R)
• M20: 23,810,745 km (0.112 R)
• M21: 24,414,971 km (0.038 R)
• M22: 26,129,063 km (0.085 R)
• M23: 26,771,885 km (0.099 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.8

Radius: 12.6

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 4.42 AU - 5.22 AU

Year: 7057 Days

Day: 9.5 Hours

Environment

Temp: -229 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 43,304,858 km

• M1: 156,779 km (0.112 R)
• M2: 722,558 km (0.033 R)
• M3: 1,337,854 km (0.09 R)
• M4: 3,244,927 km (0.113 R)
• M5: 3,965,092 km (0.112 R)
• M6: 4,553,759 km (0.07 R)
• M7: 5,033,071 km (0.11 R)
• M8: 6,284,008 km (0.109 R)
• M9: 7,806,765 km (0.11 R)
• M10: 8,300,587 km (0.083 R)
• M11: 9,142,375 km (0.062 R)
• M12: 12,313,251 km (0.095 R)
• M13: 12,878,881 km (0.073 R)
• M14: 13,624,028 km (0.081 R)
• M15: 15,612,632 km (0.06 R)
• M16: 16,583,373 km (0.038 R)
• M17: 17,146,908 km (0.083 R)
• M18: 19,668,380 km (0.105 R)
• M19: 20,728,580 km (0.07 R)
• M20: 21,900,979 km (0.11 R)
• M21: 23,899,905 km (0.05 R)
• M22: 27,294,879 km (0.111 R)
• M23: 28,524,125 km (0.089 R)
• M24: 29,424,704 km (0.066 R)
• M25: 31,758,880 km (0.107 R)
• M26: 32,240,136 km (0.034 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 129.6

Radius: 5.9

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.57 AU - 11.57 AU

Year: 19742 Days

Day: 19.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,304,858 km

• M1: 73,303 km (0.066 R)
• M2: 360,680 km (0.108 R)
• M3: 565,779 km (0.071 R)
• M4: 1,336,507 km (0.052 R)
• M5: 2,778,332 km (0.047 R)
• M6: 3,986,634 km (0.095 R)
• M7: 4,226,738 km (0.085 R)
• M8: 4,420,019 km (0.069 R)
• M9: 5,035,913 km (0.113 R)
• M10: 5,774,478 km (0.06 R)
• M11: 6,152,063 km (0.099 R)
• M12: 8,464,846 km (0.119 R)
• M13: 11,728,024 km (0.092 R)
• M14: 12,445,795 km (0.113 R)
• M15: 12,786,878 km (0.05 R)
• M16: 14,152,108 km (0.038 R)
• M17: 16,822,131 km (0.082 R)
• M18: 21,713,533 km (0.062 R)
• M19: 31,905,336 km (0.103 R)
• M20: 42,659,628 km (0.11 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 407 - 20,157 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit