🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 46.6

Radius: 8.4

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.46 AU - 0.76 AU

Year: 323 Days

Day: 12 Hours

Environment

Temp: -142 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 69,618,225 km

• M1: 111,600 km (0.103 R)
• M2: 949,797 km (0.1 R)
• M3: 1,512,285 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.8

Radius: 11.4

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.57 AU - 0.69 AU

Year: 339 Days

Day: 5.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,618,225 km

• M1: 141,819 km (0.096 R)
• M2: 523,742 km (0.08 R)
• M3: 1,130,960 km (0.081 R)
• M4: 1,530,536 km (0.117 R)
• M5: 2,010,745 km (0.101 R)
• M6: 2,486,466 km (0.092 R)
• M7: 2,863,602 km (0.112 R)
• M8: 3,578,381 km (0.076 R)
• M9: 4,014,160 km (0.03 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.4

Radius: 14.4

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.59 AU - 0.69 AU

Year: 347 Days

Day: 6.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,618,225 km

• M1: 179,218 km (0.118 R)
• M2: 749,785 km (0.1 R)
• M3: 1,204,113 km (0.04 R)
• M4: 1,824,047 km (0.037 R)
• M5: 2,644,741 km (0.109 R)
• M6: 3,106,101 km (0.059 R)
• M7: 3,632,835 km (0.107 R)
• M8: 4,156,577 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.2

Radius: 9.1

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.8 AU - 1.12 AU

Year: 638 Days

Day: 12 Hours

Environment

Temp: -163 °C

Axial Tilt: 67.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,618,225 km

• M1: 113,246 km (0.065 R)
• M2: 423,362 km (0.029 R)
• M3: 754,721 km (0.104 R)
• M4: 1,386,174 km (0.06 R)
• M5: 1,895,106 km (0.11 R)
• M6: 2,327,892 km (0.113 R)
• M7: 2,750,357 km (0.073 R)
• M8: 3,050,001 km (0.069 R)
• M9: 3,447,034 km (0.085 R)
• M10: 3,937,865 km (0.104 R)
• M11: 4,371,100 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.5

Radius: 11.8

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.53 AU - 2.25 AU

Year: 1762 Days

Day: 6.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,618,225 km

• M1: 147,055 km (0.103 R)
• M2: 559,945 km (0.096 R)
• M3: 959,072 km (0.095 R)
• M4: 1,330,523 km (0.108 R)
• M5: 1,724,863 km (0.095 R)
• M6: 2,467,018 km (0.076 R)
• M7: 4,259,201 km (0.05 R)
• M8: 5,152,151 km (0.065 R)
• M9: 5,538,861 km (0.104 R)
• M10: 6,024,755 km (0.026 R)
• M11: 6,475,643 km (0.036 R)
• M12: 6,861,306 km (0.093 R)
• M13: 7,655,372 km (0.043 R)
• M14: 8,234,465 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 101.3

Radius: 10.5

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.93 AU - 2.83 AU

Year: 2490 Days

Day: 8.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,618,225 km

• M1: 131,347 km (0.091 R)
• M2: 628,161 km (0.052 R)
• M3: 1,281,455 km (0.04 R)
• M4: 1,751,342 km (0.072 R)
• M5: 2,630,379 km (0.089 R)
• M6: 6,126,631 km (0.083 R)
• M7: 7,064,759 km (0.081 R)
• M8: 8,461,106 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.5

Radius: 14.5

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.58 AU - 3.88 AU

Year: 4886 Days

Day: 13.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,618,225 km

• M1: 180,415 km (0.102 R)
• M2: 745,895 km (0.082 R)
• M3: 1,303,147 km (0.036 R)
• M4: 2,218,237 km (0.114 R)
• M5: 3,339,623 km (0.116 R)
• M6: 4,124,413 km (0.105 R)
• M7: 4,678,673 km (0.045 R)
• M8: 5,140,781 km (0.105 R)
• M9: 6,919,500 km (0.111 R)
• M10: 7,449,525 km (0.07 R)
• M11: 8,314,949 km (0.089 R)
• M12: 9,629,465 km (0.113 R)
• M13: 10,382,092 km (0.065 R)
• M14: 11,078,470 km (0.096 R)
• M15: 12,308,464 km (0.064 R)
• M16: 13,464,407 km (0.118 R)
• M17: 14,406,275 km (0.053 R)
• M18: 15,992,162 km (0.095 R)
• M19: 17,756,818 km (0.066 R)
• M20: 19,928,830 km (0.082 R)
• M21: 22,809,187 km (0.071 R)
• M22: 26,808,537 km (0.109 R)
• M23: 28,298,831 km (0.115 R)
• M24: 29,018,995 km (0.076 R)
• M25: 29,843,878 km (0.085 R)
• M26: 31,732,700 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.9

Radius: 13.1

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 4.79 AU - 4.99 AU

Year: 7334 Days

Day: 12.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,618,225 km

• M1: 162,912 km (0.063 R)
• M2: 820,844 km (0.092 R)
• M3: 1,614,909 km (0.096 R)
• M4: 2,283,911 km (0.113 R)
• M5: 2,747,664 km (0.067 R)
• M6: 4,978,168 km (0.052 R)
• M7: 5,581,497 km (0.086 R)
• M8: 7,149,731 km (0.099 R)
• M9: 10,523,013 km (0.097 R)
• M10: 11,306,906 km (0.112 R)
• M11: 12,129,395 km (0.103 R)
• M12: 16,090,298 km (0.115 R)
• M13: 19,044,856 km (0.112 R)
• M14: 22,680,084 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.8

Radius: 7.8

Gravity: 9.09 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 8.75 AU - 10.01 AU

Year: 19485 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 69,618,225 km

• M1: 97,837 km (0.108 R)
• M2: 495,767 km (0.09 R)
• M3: 976,425 km (0.08 R)
• M4: 2,483,474 km (0.069 R)
• M5: 5,101,886 km (0.055 R)
• M6: 5,663,027 km (0.048 R)
• M7: 6,863,850 km (0.112 R)
• M8: 7,132,228 km (0.066 R)
• M9: 8,376,733 km (0.081 R)
• M10: 8,787,229 km (0.071 R)
• M11: 9,319,050 km (0.086 R)
• M12: 10,983,326 km (0.089 R)
• M13: 13,107,915 km (0.085 R)
• M14: 16,665,801 km (0.077 R)
• M15: 18,492,990 km (0.086 R)
• M16: 19,454,904 km (0.077 R)
• M17: 20,912,885 km (0.085 R)
• M18: 21,668,653 km (0.113 R)
• M19: 28,497,646 km (0.073 R)
• M20: 34,765,648 km (0.046 R)
• M21: 36,363,502 km (0.032 R)
• M22: 38,569,173 km (0.116 R)
• M23: 39,704,771 km (0.042 R)
• M24: 43,245,453 km (0.07 R)
• M25: 45,719,204 km (0.112 R)
• M26: 51,627,422 km (0.096 R)
• M27: 53,704,439 km (0.076 R)
• M28: 56,197,487 km (0.095 R)
• M29: 58,209,579 km (0.096 R)
• M30: 60,080,001 km (0.025 R)
• M31: 61,797,384 km (0.117 R)
• M32: 63,940,374 km (0.108 R)
• M33: 66,334,389 km (0.037 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 307 - 15,906 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit