🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.54 AU - 0.8 AU

Year: 354 Days

Day: 26.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 8.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.7

Radius: 12.5

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.76 AU - 0.84 AU

Year: 462 Days

Day: 7.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,219,327 km

• M1: 155,432 km (0.057 R)
• M2: 584,928 km (0.109 R)
• M3: 978,071 km (0.087 R)
• M4: 1,421,629 km (0.105 R)
• M5: 2,167,673 km (0.03 R)
• M6: 2,600,310 km (0.111 R)
• M7: 3,219,945 km (0.113 R)
• M8: 3,668,888 km (0.068 R)
• M9: 4,060,984 km (0.065 R)
• M10: 5,174,590 km (0.084 R)
• M11: 5,669,909 km (0.095 R)
• M12: 6,309,739 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270

Radius: 11.3

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.9 AU - 4.34 AU

Year: 4447 Days

Day: 11.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 50,219,327 km

• M1: 140,472 km (0.083 R)
• M2: 545,284 km (0.077 R)
• M3: 932,743 km (0.071 R)
• M4: 1,501,514 km (0.059 R)
• M5: 1,932,505 km (0.114 R)
• M6: 2,577,123 km (0.11 R)
• M7: 3,414,272 km (0.087 R)
• M8: 4,380,974 km (0.103 R)
• M9: 4,916,983 km (0.099 R)
• M10: 5,446,410 km (0.109 R)
• M11: 5,933,949 km (0.054 R)
• M12: 7,511,459 km (0.044 R)
• M13: 8,616,987 km (0.091 R)
• M14: 10,591,380 km (0.092 R)
• M15: 11,767,967 km (0.091 R)
• M16: 14,045,894 km (0.08 R)
• M17: 14,524,756 km (0.112 R)
• M18: 16,550,312 km (0.105 R)
• M19: 18,585,591 km (0.059 R)
• M20: 19,338,666 km (0.101 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 860.6

Radius: 6

Gravity: 23.91 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.43 AU - 8.33 AU

Year: 11652 Days

Day: 22.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 50,219,327 km

• M1: 74,799 km (0.11 R)
• M2: 279,449 km (0.083 R)
• M3: 643,121 km (0.038 R)
• M4: 885,171 km (0.035 R)
• M5: 1,200,373 km (0.109 R)
• M6: 1,412,653 km (0.119 R)
• M7: 2,948,424 km (0.1 R)
• M8: 3,441,499 km (0.113 R)
• M9: 5,183,117 km (0.099 R)
• M10: 5,862,591 km (0.053 R)
• M11: 7,096,325 km (0.076 R)
• M12: 9,747,199 km (0.12 R)
• M13: 13,444,061 km (0.108 R)
• M14: 15,209,316 km (0.064 R)
• M15: 16,147,445 km (0.066 R)
• M16: 19,358,563 km (0.105 R)
• M17: 19,777,287 km (0.105 R)
• M18: 20,632,538 km (0.088 R)
• M19: 21,780,852 km (0.105 R)
• M20: 22,051,773 km (0.09 R)
• M21: 23,440,490 km (0.106 R)
• M22: 24,300,977 km (0.102 R)
• M23: 27,009,148 km (0.083 R)
• M24: 29,689,941 km (0.091 R)
• M25: 33,854,297 km (0.072 R)
• M26: 35,324,545 km (0.102 R)
• M27: 40,805,512 km (0.071 R)
• M28: 41,909,993 km (0.108 R)
• M29: 45,489,870 km (0.072 R)
• M30: 48,343,300 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 590.6

Radius: 3.4

Gravity: 51.09 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 5.62 AU - 8.5 AU

Year: 12112 Days

Day: 19.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 50,219,327 km

• M1: 54,603 km (0.104 R)
• M2: 203,453 km (0.07 R)
• M3: 386,411 km (0.119 R)
• M4: 521,947 km (0.099 R)
• M5: 632,201 km (0.113 R)
• M6: 794,664 km (0.1 R)
• M7: 984,504 km (0.047 R)
• M8: 1,096,104 km (0.052 R)
• M9: 1,241,363 km (0.105 R)
• M10: 1,836,763 km (0.118 R)
• M11: 1,954,945 km (0.054 R)
• M12: 2,839,816 km (0.098 R)
• M13: 3,664,549 km (0.04 R)
• M14: 3,825,218 km (0.088 R)
• M15: 4,793,714 km (0.079 R)
• M16: 5,250,137 km (0.063 R)
• M17: 5,663,775 km (0.118 R)
• M18: 7,283,322 km (0.094 R)
• M19: 11,174,363 km (0.115 R)
• M20: 11,398,909 km (0.097 R)
• M21: 11,798,934 km (0.081 R)
• M22: 12,870,653 km (0.119 R)
• M23: 13,241,955 km (0.101 R)
• M24: 14,005,652 km (0.03 R)
• M25: 14,135,802 km (0.082 R)
• M26: 16,113,935 km (0.04 R)
• M27: 17,961,020 km (0.055 R)
• M28: 20,524,828 km (0.092 R)
• M29: 23,504,967 km (0.062 R)
• M30: 23,688,823 km (0.096 R)
• M31: 26,861,195 km (0.116 R)
• M32: 27,162,934 km (0.094 R)
• M33: 31,515,783 km (0.06 R)
• M34: 32,529,758 km (0.08 R)
• M35: 34,741,413 km (0.042 R)
• M36: 39,074,066 km (0.088 R)
• M37: 43,753,188 km (0.058 R)
• M38: 45,724,888 km (0.094 R)
• M39: 51,838,056 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321.1

Radius: 3

Gravity: 35.68 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 7.95 AU - 8.81 AU

Year: 15663 Days

Day: 15.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,219,327 km

• M1: 37,549 km (0.041 R)
• M2: 142,567 km (0.114 R)
• M3: 586,424 km (0.113 R)
• M4: 1,162,675 km (0.099 R)
• M5: 1,378,694 km (0.029 R)
• M6: 1,650,962 km (0.084 R)
• M7: 2,856,571 km (0.084 R)
• M8: 3,676,068 km (0.12 R)
• M9: 4,489,283 km (0.052 R)
• M10: 8,250,472 km (0.032 R)
• M11: 8,569,864 km (0.117 R)
• M12: 16,450,979 km (0.085 R)
• M13: 24,219,596 km (0.059 R)
• M14: 26,804,946 km (0.096 R)
• M15: 29,042,931 km (0.063 R)
• M16: 36,134,468 km (0.037 R)
• M17: 45,132,481 km (0.098 R)
• M18: 49,769,117 km (0.027 R)
• M19: 49,918,865 km (0.039 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 505 - 13,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit