🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.54 AU - 0.62 AU

Year: 290 Days

Day: 20.9 Hours

Environment

Temp: -131 °C

Axial Tilt: 44.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 39,047,219 km

• M1: 34,856 km (0.039 R)
• M2: 362,625 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.5

Radius: 10.2

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.58 AU - 0.8 AU

Year: 376 Days

Day: 9.4 Hours

Environment

Temp: -132 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,047,219 km

• M1: 127,158 km (0.049 R)
• M2: 465,698 km (0.099 R)
• M3: 1,007,093 km (0.029 R)
• M4: 1,477,728 km (0.109 R)
• M5: 2,019,272 km (0.116 R)
• M6: 2,346,143 km (0.062 R)
• M7: 2,737,940 km (0.051 R)
• M8: 3,130,036 km (0.049 R)
• M9: 3,524,227 km (0.065 R)
• M10: 3,888,497 km (0.027 R)
• M11: 4,468,189 km (0.074 R)
• M12: 4,881,229 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 726.2

Radius: 11.9

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.95 AU - 2.41 AU

Year: 2112 Days

Day: 8.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,047,219 km

• M1: 148,551 km (0.114 R)
• M2: 621,280 km (0.047 R)
• M3: 1,011,282 km (0.105 R)
• M4: 2,308,744 km (0.117 R)
• M5: 2,929,575 km (0.079 R)
• M6: 4,589,363 km (0.108 R)
• M7: 5,110,413 km (0.104 R)
• M8: 5,646,721 km (0.12 R)
• M9: 6,750,305 km (0.059 R)
• M10: 7,367,994 km (0.091 R)
• M11: 7,810,505 km (0.051 R)
• M12: 8,208,435 km (0.114 R)
• M13: 9,761,411 km (0.07 R)
• M14: 11,580,371 km (0.089 R)
• M15: 13,924,570 km (0.086 R)
• M16: 14,602,697 km (0.044 R)
• M17: 15,208,120 km (0.104 R)
• M18: 15,588,996 km (0.115 R)
• M19: 16,025,074 km (0.039 R)
• M20: 17,330,764 km (0.085 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.4

Radius: 9

Gravity: 11.71 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.05 AU - 3.09 AU

Year: 3529 Days

Day: 10.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 39,047,219 km

• M1: 111,899 km (0.099 R)
• M2: 430,991 km (0.026 R)
• M3: 895,642 km (0.101 R)
• M4: 1,300,454 km (0.074 R)
• M5: 1,724,415 km (0.066 R)
• M6: 3,218,299 km (0.091 R)
• M7: 5,736,031 km (0.112 R)
• M8: 6,597,715 km (0.064 R)
• M9: 7,240,387 km (0.092 R)
• M10: 7,714,762 km (0.1 R)
• M11: 8,173,579 km (0.105 R)
• M12: 10,027,545 km (0.103 R)
• M13: 11,096,572 km (0.096 R)
• M14: 12,962,655 km (0.117 R)
• M15: 15,411,872 km (0.107 R)
• M16: 15,801,275 km (0.101 R)
• M17: 16,891,544 km (0.115 R)
• M18: 17,365,321 km (0.108 R)
• M19: 17,787,037 km (0.106 R)
• M20: 20,596,485 km (0.108 R)
• M21: 21,618,239 km (0.111 R)
• M22: 24,583,268 km (0.103 R)
• M23: 26,044,989 km (0.104 R)
• M24: 26,439,180 km (0.09 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 681.9

Radius: 7.7

Gravity: 11.5 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 6.55 AU - 7.05 AU

Year: 11632 Days

Day: 21.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 39,047,219 km

• M1: 118,033 km (0.065 R)
• M2: 469,737 km (0.072 R)
• M3: 992,731 km (0.103 R)
• M4: 1,580,352 km (0.086 R)
• M5: 2,794,039 km (0.112 R)
• M6: 3,087,850 km (0.11 R)
• M7: 4,475,370 km (0.101 R)
• M8: 5,205,707 km (0.08 R)
• M9: 5,581,945 km (0.119 R)
• M10: 6,740,581 km (0.053 R)
• M11: 7,440,250 km (0.063 R)
• M12: 8,232,820 km (0.053 R)
• M13: 9,129,210 km (0.094 R)
• M14: 9,575,760 km (0.079 R)
• M15: 10,352,472 km (0.11 R)
• M16: 13,120,631 km (0.103 R)
• M17: 17,154,388 km (0.032 R)
• M18: 18,220,273 km (0.085 R)
• M19: 19,088,240 km (0.076 R)
• M20: 20,651,836 km (0.034 R)
• M21: 22,033,373 km (0.1 R)
• M22: 22,656,747 km (0.073 R)
• M23: 23,383,494 km (0.085 R)
• M24: 24,313,544 km (0.086 R)
• M25: 30,418,932 km (0.079 R)
• M26: 32,204,382 km (0.079 R)
• M27: 32,546,812 km (0.075 R)
• M28: 33,588,612 km (0.11 R)
• M29: 34,652,402 km (0.112 R)
• M30: 36,598,820 km (0.069 R)
• M31: 36,847,152 km (0.081 R)
• M32: 38,745,549 km (0.081 R)
• M33: 40,575,281 km (0.087 R)
• M34: 41,511,464 km (0.069 R)
• M35: 42,462,009 km (0.104 R)
• M36: 47,139,037 km (0.071 R)
• M37: 49,374,029 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 260.8

Radius: 5

Gravity: 10.43 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.41 AU - 7.41 AU

Year: 11916 Days

Day: 19.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 39,047,219 km

• M1: 62,233 km (0.046 R)
• M2: 466,147 km (0.095 R)
• M3: 1,315,863 km (0.036 R)
• M4: 3,161,751 km (0.034 R)
• M5: 4,564,979 km (0.114 R)
• M6: 4,819,295 km (0.094 R)
• M7: 5,053,266 km (0.115 R)
• M8: 5,294,717 km (0.042 R)
• M9: 9,130,407 km (0.094 R)
• M10: 9,950,203 km (0.102 R)
• M11: 10,620,850 km (0.087 R)
• M12: 14,312,178 km (0.059 R)
• M13: 16,509,023 km (0.093 R)
• M14: 19,503,074 km (0.119 R)
• M15: 20,022,478 km (0.07 R)
• M16: 20,627,302 km (0.111 R)
• M17: 21,794,016 km (0.115 R)
• M18: 22,433,996 km (0.097 R)
• M19: 28,958,557 km (0.089 R)
• M20: 36,642,353 km (0.116 R)
• M21: 37,660,516 km (0.074 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 543 - 17,268 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit