🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472

Radius: 13.3

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.43 AU - 0.69 AU

Year: 279 Days

Day: 11.9 Hours

Environment

Temp: -136 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 75,177,439 km

• M1: 165,455 km (0.111 R)
• M2: 580,889 km (0.029 R)
• M3: 1,153,250 km (0.094 R)
• M4: 1,653,804 km (0.057 R)
• M5: 2,683,636 km (0.069 R)
• M6: 3,101,014 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.8

Radius: 12

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.59 AU - 0.85 AU

Year: 407 Days

Day: 9.2 Hours

Environment

Temp: -150 °C

Axial Tilt: 24.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,177,439 km

• M1: 150,795 km (0.108 R)
• M2: 561,590 km (0.042 R)
• M3: 1,126,622 km (0.051 R)
• M4: 1,667,268 km (0.074 R)
• M5: 2,249,354 km (0.092 R)
• M6: 3,041,175 km (0.116 R)
• M7: 3,545,769 km (0.116 R)
• M8: 4,078,337 km (0.109 R)
• M9: 4,604,473 km (0.111 R)
• M10: 5,288,734 km (0.034 R)
• M11: 6,093,420 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.2

Radius: 10.4

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.79 AU - 0.91 AU

Year: 523 Days

Day: 12.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,177,439 km

• M1: 129,402 km (0.108 R)
• M2: 770,279 km (0.076 R)
• M3: 1,117,197 km (0.045 R)
• M4: 1,660,387 km (0.096 R)
• M5: 2,112,472 km (0.084 R)
• M6: 3,057,032 km (0.045 R)
• M7: 3,451,672 km (0.094 R)
• M8: 3,957,312 km (0.085 R)
• M9: 4,289,420 km (0.072 R)
• M10: 5,210,195 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.6

Radius: 12.9

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.86 AU - 0.96 AU

Year: 579 Days

Day: 7 Hours

Environment

Temp: -177 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,177,439 km

• M1: 160,369 km (0.103 R)
• M2: 714,180 km (0.111 R)
• M3: 1,187,508 km (0.09 R)
• M4: 2,193,853 km (0.085 R)
• M5: 2,824,258 km (0.112 R)
• M6: 3,339,922 km (0.1 R)
• M7: 4,299,293 km (0.102 R)
• M8: 5,418,734 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.4

Radius: 12.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.04 AU - 1.04 AU

Year: 707 Days

Day: 12.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,177,439 km

• M1: 159,172 km (0.089 R)
• M2: 571,464 km (0.077 R)
• M3: 993,330 km (0.091 R)
• M4: 1,563,447 km (0.036 R)
• M5: 1,978,881 km (0.109 R)
• M6: 2,433,957 km (0.105 R)
• M7: 3,040,427 km (0.087 R)
• M8: 3,469,175 km (0.114 R)
• M9: 3,975,414 km (0.06 R)
• M10: 4,571,561 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.9

Radius: 13.5

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 1.45 AU - 1.57 AU

Year: 1237 Days

Day: 11.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 75,177,439 km

• M1: 171,589 km (0.086 R)
• M2: 662,419 km (0.089 R)
• M3: 1,185,713 km (0.105 R)
• M4: 1,729,351 km (0.106 R)
• M5: 2,541,518 km (0.087 R)
• M6: 4,272,814 km (0.111 R)
• M7: 5,780,462 km (0.084 R)
• M8: 7,519,238 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 469.9

Radius: 12.1

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.31 AU - 1.85 AU

Year: 1324 Days

Day: 11.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 75,177,439 km

• M1: 151,243 km (0.063 R)
• M2: 583,880 km (0.12 R)
• M3: 976,276 km (0.034 R)
• M4: 1,570,628 km (0.1 R)
• M5: 2,032,586 km (0.116 R)
• M6: 3,139,311 km (0.115 R)
• M7: 3,541,730 km (0.08 R)
• M8: 4,227,785 km (0.057 R)
• M9: 4,757,362 km (0.049 R)
• M10: 5,614,258 km (0.079 R)
• M11: 6,058,265 km (0.071 R)
• M12: 6,457,392 km (0.114 R)
• M13: 7,482,736 km (0.117 R)
• M14: 9,526,841 km (0.077 R)
• M15: 10,315,372 km (0.045 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.3

Radius: 9

Gravity: 10.26 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.45 AU - 3.01 AU

Year: 3008 Days

Day: 9.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 75,177,439 km

• M1: 112,198 km (0.116 R)
• M2: 532,269 km (0.063 R)
• M3: 947,852 km (0.116 R)
• M4: 1,732,643 km (0.108 R)
• M5: 2,044,405 km (0.091 R)
• M6: 3,106,250 km (0.058 R)
• M7: 3,708,531 km (0.088 R)
• M8: 4,364,219 km (0.056 R)
• M9: 4,899,031 km (0.11 R)
• M10: 6,530,545 km (0.106 R)
• M11: 7,453,415 km (0.119 R)
• M12: 8,601,878 km (0.113 R)
• M13: 10,099,053 km (0.088 R)
• M14: 10,499,078 km (0.064 R)
• M15: 10,909,574 km (0.056 R)
• M16: 12,116,231 km (0.074 R)
• M17: 14,388,174 km (0.094 R)
• M18: 15,308,949 km (0.112 R)
• M19: 15,783,772 km (0.099 R)
• M20: 22,952,951 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 863.2

Radius: 5

Gravity: 34.53 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.04 AU - 9.62 AU

Year: 17497 Days

Day: 18.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 75,177,439 km

• M1: 62,382 km (0.112 R)
• M2: 381,475 km (0.091 R)
• M3: 718,818 km (0.028 R)
• M4: 1,049,579 km (0.11 R)
• M5: 1,875,209 km (0.087 R)
• M6: 2,321,609 km (0.106 R)
• M7: 2,688,573 km (0.113 R)
• M8: 5,787,792 km (0.058 R)
• M9: 6,726,219 km (0.092 R)
• M10: 10,026,348 km (0.107 R)
• M11: 12,356,036 km (0.034 R)
• M12: 13,183,013 km (0.087 R)
• M13: 14,193,846 km (0.047 R)
• M14: 16,531,612 km (0.074 R)
• M15: 17,449,544 km (0.098 R)
• M16: 19,295,283 km (0.081 R)
• M17: 22,352,016 km (0.074 R)
• M18: 22,857,059 km (0.1 R)
• M19: 23,473,103 km (0.119 R)
• M20: 23,680,894 km (0.055 R)
• M21: 24,631,140 km (0.072 R)
• M22: 25,716,472 km (0.033 R)
• M23: 30,872,363 km (0.084 R)
• M24: 32,261,230 km (0.101 R)
• M25: 37,662,311 km (0.104 R)
• M26: 40,725,328 km (0.115 R)
• M27: 43,012,081 km (0.093 R)
• M28: 43,792,981 km (0.052 R)
• M29: 47,176,137 km (0.076 R)
• M30: 47,839,753 km (0.097 R)
• M31: 49,867,702 km (0.105 R)
• M32: 53,373,977 km (0.096 R)
• M33: 54,275,454 km (0.115 R)
• M34: 57,228,516 km (0.094 R)
• M35: 57,416,560 km (0.058 R)
• M36: 59,319,744 km (0.097 R)
• M37: 59,705,408 km (0.117 R)
• M38: 61,856,326 km (0.05 R)
• M39: 62,850,853 km (0.111 R)
• M40: 63,654,044 km (0.07 R)
• M41: 72,505,600 km (0.03 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 18,178 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit