🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.45 AU - 0.61 AU

Year: 245 Days

Day: 34.3 Hours

Environment

Temp: -112 °C

Axial Tilt: 11.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.7

Radius: 12.4

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.95 AU - 1.01 AU

Year: 617 Days

Day: 11.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 91,585,166 km

• M1: 154,235 km (0.1 R)
• M2: 648,956 km (0.114 R)
• M3: 1,066,483 km (0.083 R)
• M4: 1,708,856 km (0.113 R)
• M5: 2,184,279 km (0.088 R)
• M6: 3,574,940 km (0.106 R)
• M7: 5,922,879 km (0.053 R)
• M8: 6,498,083 km (0.071 R)
• M9: 7,152,424 km (0.065 R)

Asteroid Belt

Center: 1.43 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 776.5

Radius: 10.7

Gravity: 6.78 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.65 AU - 2.12 AU

Year: 1639 Days

Day: 7.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 91,585,166 km

• M1: 133,142 km (0.097 R)
• M2: 619,186 km (0.116 R)
• M3: 1,075,459 km (0.069 R)
• M4: 1,422,825 km (0.112 R)
• M5: 2,316,673 km (0.111 R)
• M6: 2,938,701 km (0.083 R)
• M7: 4,777,109 km (0.109 R)
• M8: 6,217,886 km (0.085 R)
• M9: 6,671,018 km (0.117 R)
• M10: 7,011,802 km (0.076 R)
• M11: 8,193,475 km (0.096 R)
• M12: 9,601,939 km (0.078 R)
• M13: 11,165,536 km (0.113 R)
• M14: 13,176,132 km (0.12 R)
• M15: 14,010,289 km (0.044 R)
• M16: 14,397,000 km (0.103 R)
• M17: 14,923,584 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817.4

Radius: 8.6

Gravity: 11.05 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.38 AU - 3.64 AU

Year: 3320 Days

Day: 8.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 91,585,166 km

• M1: 106,962 km (0.1 R)
• M2: 617,241 km (0.074 R)
• M3: 963,410 km (0.117 R)
• M4: 2,063,703 km (0.083 R)
• M5: 3,270,060 km (0.104 R)
• M6: 4,057,693 km (0.106 R)
• M7: 4,891,701 km (0.045 R)
• M8: 5,481,715 km (0.12 R)
• M9: 6,469,510 km (0.082 R)
• M10: 7,084,806 km (0.114 R)
• M11: 7,604,808 km (0.105 R)
• M12: 9,166,161 km (0.07 R)
• M13: 11,144,443 km (0.108 R)
• M14: 12,815,601 km (0.117 R)
• M15: 16,647,251 km (0.116 R)
• M16: 17,800,800 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.8

Radius: 11.6

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 3.18 AU - 3.24 AU

Year: 3657 Days

Day: 11.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 91,585,166 km

• M1: 172,935 km (0.096 R)
• M2: 552,166 km (0.097 R)
• M3: 1,039,107 km (0.11 R)
• M4: 1,442,273 km (0.086 R)
• M5: 2,125,337 km (0.059 R)
• M6: 2,564,257 km (0.106 R)
• M7: 3,301,924 km (0.047 R)
• M8: 3,778,393 km (0.082 R)
• M9: 4,155,530 km (0.088 R)
• M10: 4,847,869 km (0.089 R)
• M11: 6,243,467 km (0.117 R)
• M12: 6,659,200 km (0.057 R)
• M13: 7,182,493 km (0.071 R)
• M14: 7,954,717 km (0.093 R)
• M15: 9,996,579 km (0.112 R)
• M16: 11,442,891 km (0.073 R)
• M17: 12,935,279 km (0.119 R)
• M18: 14,314,422 km (0.112 R)
• M19: 14,941,686 km (0.106 R)
• M20: 19,503,972 km (0.099 R)
• M21: 19,976,103 km (0.113 R)

Planet 6 - Ice Giant

Semi-Major Axis: 11.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 861.9

Radius: 7.6

Gravity: 14.92 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 9.84 AU - 12.38 AU

Year: 23545 Days

Day: 16.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 91,585,166 km

• M1: 94,546 km (0.109 R)
• M2: 379,231 km (0.111 R)
• M3: 859,889 km (0.113 R)
• M4: 1,343,538 km (0.107 R)
• M5: 1,935,647 km (0.106 R)
• M6: 2,395,810 km (0.083 R)
• M7: 3,786,472 km (0.1 R)
• M8: 4,222,400 km (0.078 R)
• M9: 6,172,259 km (0.079 R)
• M10: 6,586,495 km (0.104 R)
• M11: 9,234,228 km (0.105 R)
• M12: 10,086,636 km (0.051 R)
• M13: 11,057,227 km (0.115 R)
• M14: 11,668,634 km (0.116 R)
• M15: 14,104,536 km (0.026 R)
• M16: 15,068,545 km (0.091 R)
• M17: 16,247,974 km (0.081 R)
• M18: 17,306,828 km (0.11 R)
• M19: 18,694,348 km (0.043 R)
• M20: 21,480,010 km (0.083 R)
• M21: 23,631,377 km (0.065 R)
• M22: 27,000,022 km (0.113 R)
• M23: 32,701,795 km (0.108 R)
• M24: 37,319,283 km (0.116 R)
• M25: 39,783,011 km (0.105 R)
• M26: 43,678,838 km (0.111 R)
• M27: 45,031,951 km (0.075 R)
• M28: 51,842,544 km (0.08 R)
• M29: 55,099,738 km (0.052 R)
• M30: 67,460,412 km (0.099 R)
• M31: 76,571,221 km (0.092 R)
• M32: 77,304,251 km (0.084 R)
• M33: 78,041,918 km (0.098 R)
• M34: 78,288,904 km (0.105 R)
• M35: 85,416,345 km (0.106 R)
• M36: 90,219,633 km (0.114 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 472 - 12,668 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit