🌌 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: 386.5

Radius: 14.9

Gravity: 1.74 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.56 AU - 0.62 AU

Year: 302 Days

Day: 9.5 Hours

Environment

Temp: -148 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,826,733 km

• M1: 185,352 km (0.091 R)
• M2: 793,766 km (0.106 R)
• M3: 1,290,282 km (0.119 R)
• M4: 2,002,367 km (0.082 R)
• M5: 2,503,670 km (0.102 R)
• M6: 3,108,345 km (0.103 R)
• M7: 3,766,575 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 525

Radius: 13.1

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.5 AU - 0.82 AU

Year: 358 Days

Day: 13.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,826,733 km

• M1: 162,912 km (0.076 R)
• M2: 593,156 km (0.116 R)
• M3: 1,046,138 km (0.11 R)
• M4: 1,608,626 km (0.1 R)
• M5: 2,118,306 km (0.074 R)
• M6: 2,597,468 km (0.111 R)
• M7: 3,448,231 km (0.094 R)
• M8: 4,243,643 km (0.096 R)
• M9: 4,705,900 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.9

Radius: 10.2

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.76 AU - 0.84 AU

Year: 477 Days

Day: 13.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,826,733 km

• M1: 126,859 km (0.076 R)
• M2: 521,199 km (0.073 R)
• M3: 885,320 km (0.114 R)
• M4: 1,271,133 km (0.106 R)
• M5: 1,801,009 km (0.085 R)
• M6: 2,665,684 km (0.051 R)
• M7: 3,245,227 km (0.06 R)
• M8: 3,720,349 km (0.088 R)
• M9: 6,250,049 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583

Radius: 14

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.55 AU - 1.71 AU

Year: 1388 Days

Day: 15 Hours

Environment

Temp: -193 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,826,733 km

• M1: 174,132 km (0.068 R)
• M2: 658,380 km (0.067 R)
• M3: 1,121,685 km (0.049 R)
• M4: 2,043,058 km (0.056 R)
• M5: 2,479,585 km (0.085 R)
• M6: 3,048,356 km (0.063 R)
• M7: 3,515,999 km (0.079 R)
• M8: 4,168,395 km (0.093 R)
• M9: 4,653,691 km (0.106 R)
• M10: 6,864,448 km (0.091 R)
• M11: 7,995,857 km (0.085 R)
• M12: 8,952,535 km (0.07 R)
• M13: 10,270,343 km (0.115 R)
• M14: 10,792,439 km (0.097 R)
• M15: 11,784,123 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.3

Radius: 9.9

Gravity: 9.38 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 2.18 AU - 2.22 AU

Year: 2176 Days

Day: 12.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,826,733 km

• M1: 123,119 km (0.118 R)
• M2: 480,808 km (0.077 R)
• M3: 806,033 km (0.1 R)
• M4: 1,199,177 km (0.116 R)
• M5: 2,071,183 km (0.069 R)
• M6: 2,442,185 km (0.116 R)
• M7: 3,000,784 km (0.107 R)
• M8: 3,389,589 km (0.063 R)
• M9: 3,698,508 km (0.117 R)
• M10: 4,046,174 km (0.113 R)
• M11: 4,674,485 km (0.112 R)
• M12: 5,318,204 km (0.119 R)
• M13: 5,636,698 km (0.099 R)
• M14: 5,967,908 km (0.11 R)
• M15: 6,475,493 km (0.03 R)
• M16: 9,316,357 km (0.111 R)
• M17: 10,074,070 km (0.119 R)
• M18: 10,950,564 km (0.095 R)
• M19: 12,001,489 km (0.11 R)
• M20: 14,350,325 km (0.117 R)
• M21: 16,572,153 km (0.119 R)
• M22: 17,900,881 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.9

Radius: 13.3

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.44 AU - 2.52 AU

Year: 2604 Days

Day: 5.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,826,733 km

• M1: 165,455 km (0.089 R)
• M2: 649,554 km (0.051 R)
• M3: 1,063,192 km (0.118 R)
• M4: 1,943,426 km (0.086 R)
• M5: 2,460,885 km (0.116 R)
• M6: 2,975,352 km (0.098 R)
• M7: 3,778,842 km (0.036 R)
• M8: 4,240,950 km (0.119 R)
• M9: 6,436,748 km (0.054 R)
• M10: 7,124,299 km (0.084 R)
• M11: 8,152,336 km (0.047 R)
• M12: 11,055,133 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.6

Radius: 13.6

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 3.59 AU - 5.61 AU

Year: 6579 Days

Day: 11.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 68,826,733 km

• M1: 169,195 km (0.073 R)
• M2: 614,698 km (0.12 R)
• M3: 1,427,912 km (0.087 R)
• M4: 1,947,914 km (0.118 R)
• M5: 2,561,265 km (0.08 R)
• M6: 3,820,281 km (0.069 R)
• M7: 5,156,788 km (0.104 R)
• M8: 6,006,803 km (0.097 R)
• M9: 6,624,044 km (0.057 R)
• M10: 7,215,554 km (0.056 R)
• M11: 9,364,976 km (0.04 R)
• M12: 11,259,035 km (0.049 R)
• M13: 11,723,088 km (0.1 R)
• M14: 13,448,549 km (0.059 R)
• M15: 14,291,384 km (0.105 R)
• M16: 15,450,767 km (0.043 R)
• M17: 16,257,997 km (0.108 R)
• M18: 23,534,587 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 662.4

Radius: 7.8

Gravity: 10.89 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 7.87 AU - 9.79 AU

Year: 17497 Days

Day: 18.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,826,733 km

• M1: 96,939 km (0.093 R)
• M2: 504,594 km (0.028 R)
• M3: 751,879 km (0.113 R)
• M4: 1,236,576 km (0.119 R)
• M5: 1,638,246 km (0.045 R)
• M6: 2,204,624 km (0.042 R)
• M7: 2,500,229 km (0.085 R)
• M8: 3,868,302 km (0.047 R)
• M9: 4,173,930 km (0.119 R)
• M10: 5,152,749 km (0.098 R)
• M11: 6,153,559 km (0.111 R)
• M12: 10,387,328 km (0.07 R)
• M13: 12,427,544 km (0.111 R)
• M14: 13,507,042 km (0.095 R)
• M15: 13,998,471 km (0.066 R)
• M16: 16,240,644 km (0.108 R)
• M17: 18,283,553 km (0.1 R)
• M18: 20,036,690 km (0.083 R)
• M19: 23,469,812 km (0.103 R)
• M20: 25,537,105 km (0.116 R)
• M21: 29,793,762 km (0.026 R)
• M22: 30,506,596 km (0.065 R)
• M23: 30,988,002 km (0.106 R)
• M24: 34,630,860 km (0.08 R)
• M25: 35,684,029 km (0.067 R)
• M26: 37,303,426 km (0.104 R)
• M27: 37,715,718 km (0.109 R)
• M28: 39,966,717 km (0.041 R)
• M29: 41,712,524 km (0.064 R)
• M30: 46,457,020 km (0.114 R)
• M31: 51,549,033 km (0.115 R)
• M32: 59,397,087 km (0.113 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: 180 - 11,241 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit