🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 15.8

Radius: 10.2

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.52 AU - 0.8 AU

Year: 370 Days

Day: 6 Hours

Environment

Temp: -161 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 17,187,656 km

• M1: 126,859 km (0.103 R)
• M2: 553,811 km (0.094 R)
• M3: 929,452 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.1

Radius: 11.9

Gravity: 4.94 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.51 AU - 0.83 AU

Year: 379 Days

Day: 6.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,187,656 km

• M1: 147,952 km (0.078 R)
• M2: 526,285 km (0.083 R)
• M3: 1,047,933 km (0.087 R)
• M4: 1,555,070 km (0.089 R)
• M5: 1,986,809 km (0.031 R)
• M6: 2,372,024 km (0.066 R)
• M7: 3,002,728 km (0.072 R)
• M8: 3,879,222 km (0.105 R)
• M9: 4,530,123 km (0.089 R)
• M10: 5,346,179 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.1

Radius: 11.7

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.78 AU - 1.96 AU

Year: 1765 Days

Day: 11.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,187,656 km

• M1: 145,559 km (0.083 R)
• M2: 511,924 km (0.033 R)
• M3: 1,038,359 km (0.107 R)
• M4: 1,580,352 km (0.106 R)
• M5: 1,983,369 km (0.09 R)
• M6: 3,243,431 km (0.046 R)
• M7: 4,553,909 km (0.06 R)
• M8: 5,019,308 km (0.074 R)
• M9: 5,834,915 km (0.104 R)
• M10: 6,813,884 km (0.06 R)
• M11: 7,870,793 km (0.087 R)
• M12: 9,903,678 km (0.106 R)
• M13: 10,583,451 km (0.098 R)
• M14: 11,077,573 km (0.095 R)
• M15: 11,810,154 km (0.104 R)
• M16: 13,009,330 km (0.103 R)
• M17: 13,494,626 km (0.105 R)
• M18: 14,034,075 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.3

Radius: 13.5

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 2.53 AU - 2.73 AU

Year: 2944 Days

Day: 6.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 17,187,656 km

• M1: 187,895 km (0.073 R)
• M2: 706,401 km (0.11 R)
• M3: 2,031,539 km (0.101 R)
• M4: 2,455,350 km (0.088 R)
• M5: 3,351,591 km (0.066 R)
• M6: 4,315,599 km (0.087 R)
• M7: 5,838,506 km (0.086 R)
• M8: 6,340,855 km (0.11 R)
• M9: 7,204,783 km (0.116 R)
• M10: 8,207,238 km (0.079 R)
• M11: 9,813,022 km (0.096 R)
• M12: 10,236,384 km (0.048 R)
• M13: 11,541,625 km (0.028 R)
• M14: 13,123,623 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50

Radius: 13.3

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.58 AU - 5.16 AU

Year: 6306 Days

Day: 10.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,187,656 km

• M1: 165,455 km (0.11 R)
• M2: 1,307,336 km (0.104 R)
• M3: 2,575,477 km (0.106 R)
• M4: 5,312,520 km (0.111 R)
• M5: 6,686,127 km (0.087 R)
• M6: 11,843,065 km (0.102 R)
• M7: 13,213,382 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 623.7

Radius: 14.9

Gravity: 2.81 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.62 AU - 5.98 AU

Year: 8422 Days

Day: 10.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,187,656 km

• M1: 185,352 km (0.054 R)
• M2: 741,407 km (0.071 R)
• M3: 1,536,969 km (0.111 R)
• M4: 3,154,720 km (0.096 R)
• M5: 4,122,169 km (0.073 R)
• M6: 10,696,846 km (0.112 R)
• M7: 12,206,289 km (0.064 R)
• M8: 15,580,917 km (0.106 R)
• M9: 19,834,733 km (0.088 R)
• M10: 21,304,083 km (0.105 R)
• M11: 25,338,139 km (0.079 R)
• M12: 29,558,594 km (0.098 R)
• M13: 31,783,414 km (0.1 R)
• M14: 32,619,517 km (0.044 R)
• M15: 34,554,415 km (0.069 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 848.2

Radius: 6.1

Gravity: 22.79 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 6.53 AU - 7.85 AU

Year: 13308 Days

Day: 16.9 Hours

Environment

Temp: -235 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 17,187,656 km

• M1: 110,104 km (0.099 R)
• M2: 611,706 km (0.118 R)
• M3: 1,220,270 km (0.117 R)
• M4: 1,426,715 km (0.077 R)
• M5: 1,672,654 km (0.11 R)
• M6: 1,910,963 km (0.116 R)
• M7: 3,570,303 km (0.103 R)
• M8: 4,056,496 km (0.042 R)
• M9: 4,952,288 km (0.026 R)
• M10: 5,705,962 km (0.065 R)
• M11: 6,492,248 km (0.043 R)
• M12: 6,868,786 km (0.067 R)
• M13: 7,215,704 km (0.055 R)
• M14: 8,973,628 km (0.106 R)
• M15: 9,600,294 km (0.11 R)
• M16: 12,211,375 km (0.101 R)
• M17: 15,407,234 km (0.109 R)
• M18: 15,702,391 km (0.092 R)
• M19: 16,380,668 km (0.104 R)
• M20: 16,921,614 km (0.098 R)
• M21: 22,337,206 km (0.108 R)
• M22: 23,876,419 km (0.108 R)
• M23: 25,177,920 km (0.101 R)
• M24: 26,106,324 km (0.085 R)
• M25: 28,250,660 km (0.105 R)
• M26: 29,478,709 km (0.109 R)
• M27: 29,933,936 km (0.068 R)
• M28: 32,280,827 km (0.063 R)
• M29: 32,886,250 km (0.112 R)
• M30: 42,606,670 km (0.088 R)
• M31: 47,879,696 km (0.092 R)
• M32: 48,350,929 km (0.076 R)
• M33: 57,724,582 km (0.048 R)
• M34: 58,437,117 km (0.081 R)
• M35: 61,901,355 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 15.1

Radius: 3.1

Gravity: 1.57 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 6.89 AU - 8.31 AU

Year: 14462 Days

Day: 21.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 17,187,656 km

• M1: 38,596 km (0.117 R)
• M2: 838,646 km (0.085 R)
• M3: 1,762,861 km (0.093 R)
• M4: 4,704,853 km (0.093 R)
• M5: 4,991,333 km (0.115 R)
• M6: 6,987,717 km (0.107 R)
• M7: 7,837,283 km (0.043 R)
• M8: 8,525,882 km (0.117 R)
• M9: 9,322,042 km (0.119 R)
• M10: 11,292,395 km (0.033 R)
• M11: 11,487,770 km (0.12 R)
• M12: 15,884,452 km (0.116 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 12,451 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit