🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.6

Radius: 8.9

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.49 AU - 0.69 AU

Year: 319 Days

Day: 7.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,615,487 km

• M1: 110,702 km (0.043 R)
• M2: 474,225 km (0.119 R)
• M3: 771,626 km (0.063 R)
• M4: 1,089,072 km (0.117 R)
• M5: 1,470,547 km (0.08 R)
• M6: 1,833,172 km (0.105 R)
• M7: 3,253,305 km (0.12 R)
• M8: 3,588,255 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.1

Radius: 11

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.64 AU - 0.94 AU

Year: 494 Days

Day: 14.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 47,615,487 km

• M1: 136,732 km (0.115 R)
• M2: 525,537 km (0.118 R)
• M3: 879,336 km (0.112 R)
• M4: 1,394,402 km (0.086 R)
• M5: 2,335,672 km (0.106 R)
• M6: 2,859,414 km (0.112 R)
• M7: 3,436,263 km (0.118 R)
• M8: 4,884,370 km (0.084 R)
• M9: 5,425,466 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.7

Radius: 10.1

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.73 AU - 1.05 AU

Year: 590 Days

Day: 5.8 Hours

Environment

Temp: -178 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,615,487 km

• M1: 126,560 km (0.119 R)
• M2: 455,526 km (0.037 R)
• M3: 915,240 km (0.027 R)
• M4: 1,244,804 km (0.086 R)
• M5: 1,831,976 km (0.09 R)
• M6: 2,368,284 km (0.084 R)
• M7: 2,920,898 km (0.094 R)
• M8: 3,413,823 km (0.089 R)
• M9: 4,014,160 km (0.108 R)
• M10: 4,581,435 km (0.101 R)
• M11: 4,922,518 km (0.117 R)
• M12: 5,539,908 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.4

Radius: 11.7

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 1.1 AU - 1.68 AU

Year: 1152 Days

Day: 8 Hours

Environment

Temp: -179 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,615,487 km

• M1: 146,905 km (0.11 R)
• M2: 682,765 km (0.103 R)
• M3: 1,616,704 km (0.102 R)
• M4: 2,035,129 km (0.077 R)
• M5: 2,415,557 km (0.09 R)
• M6: 2,831,588 km (0.074 R)
• M7: 3,489,370 km (0.112 R)
• M8: 3,855,137 km (0.05 R)
• M9: 4,545,083 km (0.12 R)
• M10: 5,944,122 km (0.032 R)
• M11: 6,731,904 km (0.12 R)
• M12: 7,255,796 km (0.099 R)
• M13: 7,979,999 km (0.12 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.1

Radius: 9.3

Gravity: 10.42 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.84 AU - 2.14 AU

Year: 1973 Days

Day: 12.6 Hours

Environment

Temp: -202 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,615,487 km

• M1: 115,639 km (0.113 R)
• M2: 412,441 km (0.098 R)
• M3: 722,707 km (0.112 R)
• M4: 1,018,761 km (0.066 R)
• M5: 1,882,390 km (0.103 R)
• M6: 2,689,471 km (0.116 R)
• M7: 2,994,351 km (0.108 R)
• M8: 3,408,139 km (0.097 R)
• M9: 4,149,695 km (0.041 R)
• M10: 4,516,958 km (0.105 R)
• M11: 6,155,952 km (0.111 R)
• M12: 8,868,611 km (0.095 R)
• M13: 9,272,974 km (0.108 R)
• M14: 12,126,852 km (0.105 R)
• M15: 13,887,320 km (0.045 R)
• M16: 14,204,019 km (0.093 R)
• M17: 15,423,092 km (0.081 R)
• M18: 16,157,318 km (0.114 R)
• M19: 16,710,381 km (0.072 R)
• M20: 17,432,490 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.6

Radius: 13.5

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.42 AU - 2.48 AU

Year: 2696 Days

Day: 5.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,615,487 km

• M1: 168,298 km (0.099 R)
• M2: 655,837 km (0.053 R)
• M3: 1,167,462 km (0.118 R)
• M4: 1,771,388 km (0.091 R)
• M5: 2,843,407 km (0.042 R)
• M6: 3,515,101 km (0.084 R)
• M7: 4,351,503 km (0.09 R)
• M8: 4,773,818 km (0.072 R)
• M9: 5,411,404 km (0.095 R)
• M10: 6,105,239 km (0.077 R)
• M11: 6,528,002 km (0.109 R)
• M12: 10,133,161 km (0.056 R)
• M13: 10,918,550 km (0.082 R)
• M14: 11,424,939 km (0.1 R)
• M15: 12,526,727 km (0.055 R)
• M16: 14,058,909 km (0.091 R)
• M17: 14,518,922 km (0.115 R)
• M18: 16,868,207 km (0.043 R)
• M19: 17,598,843 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 895.2

Radius: 13.2

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.06 AU - 3.24 AU

Year: 3032 Days

Day: 14.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,615,487 km

• M1: 164,558 km (0.105 R)
• M2: 685,308 km (0.078 R)
• M3: 1,137,093 km (0.072 R)
• M4: 1,611,767 km (0.066 R)
• M5: 2,192,506 km (0.107 R)
• M6: 2,634,119 km (0.057 R)
• M7: 3,372,534 km (0.09 R)
• M8: 3,945,644 km (0.118 R)
• M9: 4,378,281 km (0.117 R)
• M10: 4,818,697 km (0.087 R)
• M11: 5,522,106 km (0.105 R)
• M12: 6,065,595 km (0.104 R)
• M13: 6,795,184 km (0.057 R)
• M14: 8,465,145 km (0.109 R)
• M15: 9,452,940 km (0.064 R)
• M16: 10,929,620 km (0.079 R)
• M17: 12,509,075 km (0.115 R)
• M18: 15,631,930 km (0.113 R)
• M19: 19,674,065 km (0.065 R)
• M20: 22,475,734 km (0.05 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.7

Radius: 12.5

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 2.6 AU - 3.66 AU

Year: 3892 Days

Day: 12.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,615,487 km

• M1: 155,731 km (0.05 R)
• M2: 549,623 km (0.119 R)
• M3: 972,237 km (0.106 R)
• M4: 1,589,029 km (0.036 R)
• M5: 2,411,667 km (0.072 R)
• M6: 4,257,406 km (0.072 R)
• M7: 6,095,964 km (0.06 R)
• M8: 6,751,053 km (0.088 R)
• M9: 7,618,571 km (0.051 R)
• M10: 9,152,248 km (0.091 R)
• M11: 9,732,837 km (0.085 R)
• M12: 10,713,003 km (0.06 R)
• M13: 12,305,173 km (0.115 R)
• M14: 13,206,650 km (0.025 R)
• M15: 13,698,378 km (0.104 R)
• M16: 14,151,510 km (0.087 R)
• M17: 15,034,736 km (0.099 R)
• M18: 16,231,668 km (0.112 R)
• M19: 18,508,548 km (0.1 R)
• M20: 20,924,404 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.2

Radius: 7

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 5.76 AU - 6.18 AU

Year: 10253 Days

Day: 22.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 169.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,615,487 km

• M1: 95,892 km (0.097 R)
• M2: 333,005 km (0.07 R)
• M3: 751,430 km (0.087 R)
• M4: 1,254,677 km (0.105 R)
• M5: 1,587,682 km (0.115 R)
• M6: 2,295,879 km (0.113 R)
• M7: 2,520,126 km (0.055 R)
• M8: 3,156,066 km (0.078 R)
• M9: 6,939,247 km (0.092 R)
• M10: 9,168,704 km (0.071 R)
• M11: 12,143,607 km (0.114 R)
• M12: 12,562,332 km (0.08 R)
• M13: 14,276,274 km (0.112 R)
• M14: 14,508,301 km (0.11 R)
• M15: 14,861,052 km (0.042 R)
• M16: 17,163,663 km (0.088 R)
• M17: 20,345,011 km (0.105 R)
• M18: 20,638,821 km (0.055 R)
• M19: 22,151,256 km (0.112 R)
• M20: 23,093,423 km (0.085 R)
• M21: 26,166,313 km (0.098 R)
• M22: 34,652,252 km (0.101 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 364.1

Radius: 4.6

Gravity: 17.21 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.69 AU - 8.71 AU

Year: 13580 Days

Day: 18.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 47,615,487 km

• M1: 57,446 km (0.111 R)
• M2: 472,879 km (0.073 R)
• M3: 883,525 km (0.081 R)
• M4: 1,193,342 km (0.082 R)
• M5: 1,615,657 km (0.12 R)
• M6: 2,294,682 km (0.057 R)
• M7: 3,785,873 km (0.109 R)
• M8: 4,362,124 km (0.065 R)
• M9: 4,656,234 km (0.113 R)
• M10: 4,994,923 km (0.09 R)
• M11: 13,544,442 km (0.104 R)
• M12: 14,106,331 km (0.083 R)
• M13: 15,276,486 km (0.102 R)
• M14: 16,509,920 km (0.112 R)
• M15: 17,734,379 km (0.069 R)
• M16: 18,105,681 km (0.102 R)
• M17: 19,485,571 km (0.084 R)
• M18: 20,606,209 km (0.082 R)
• M19: 23,594,427 km (0.083 R)
• M20: 24,224,832 km (0.113 R)
• M21: 25,519,302 km (0.073 R)
• M22: 27,645,537 km (0.115 R)
• M23: 32,577,480 km (0.082 R)
• M24: 36,489,763 km (0.092 R)
• M25: 39,684,575 km (0.115 R)
• M26: 39,937,695 km (0.114 R)
• M27: 41,220,048 km (0.11 R)
• M28: 42,661,872 km (0.118 R)
• M29: 43,596,709 km (0.11 R)
• M30: 46,203,003 km (0.032 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 439 - 15,781 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit