🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.57 AU - 0.65 AU

Year: 308 Days

Day: 46.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 25.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 74,832,000 km

• M1: 370,404 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.5

Radius: 9.3

Gravity: 7.79 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.67 AU - 1.05 AU

Year: 515 Days

Day: 8.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,832,000 km

• M1: 115,938 km (0.049 R)
• M2: 405,560 km (0.069 R)
• M3: 734,226 km (0.101 R)
• M4: 1,229,694 km (0.104 R)
• M5: 1,579,604 km (0.09 R)
• M6: 1,871,170 km (0.037 R)
• M7: 2,244,866 km (0.099 R)
• M8: 2,752,750 km (0.089 R)
• M9: 3,191,521 km (0.089 R)
• M10: 3,875,482 km (0.115 R)
• M11: 4,339,685 km (0.108 R)
• M12: 4,903,968 km (0.115 R)
• M13: 5,228,894 km (0.106 R)
• M14: 5,585,536 km (0.086 R)
• M15: 6,404,734 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.9

Radius: 12.8

Gravity: 4.33 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.7 AU - 1.12 AU

Year: 561 Days

Day: 12.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 150.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,832,000 km

• M1: 159,172 km (0.057 R)
• M2: 623,823 km (0.047 R)
• M3: 1,101,788 km (0.062 R)
• M4: 1,658,592 km (0.039 R)
• M5: 2,065,498 km (0.057 R)
• M6: 2,550,494 km (0.099 R)
• M7: 2,949,472 km (0.072 R)
• M8: 3,415,619 km (0.106 R)
• M9: 4,085,518 km (0.109 R)
• M10: 4,497,959 km (0.076 R)
• M11: 5,582,245 km (0.1 R)
• M12: 6,377,956 km (0.074 R)
• M13: 6,956,151 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.9

Radius: 9.9

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.58 AU - 1.9 AU

Year: 1482 Days

Day: 6.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,832,000 km

• M1: 123,269 km (0.054 R)
• M2: 439,519 km (0.087 R)
• M3: 854,952 km (0.067 R)
• M4: 1,302,399 km (0.081 R)
• M5: 1,642,884 km (0.08 R)
• M6: 2,148,076 km (0.083 R)
• M7: 2,617,215 km (0.079 R)
• M8: 3,167,735 km (0.12 R)
• M9: 3,530,959 km (0.061 R)
• M10: 4,644,415 km (0.118 R)
• M11: 5,193,290 km (0.083 R)
• M12: 5,638,045 km (0.077 R)
• M13: 6,196,194 km (0.107 R)
• M14: 6,720,385 km (0.104 R)
• M15: 9,263,100 km (0.08 R)
• M16: 10,071,826 km (0.113 R)
• M17: 10,572,830 km (0.077 R)
• M18: 11,024,765 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.8

Radius: 9.8

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.59 AU - 3.11 AU

Year: 3107 Days

Day: 11.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,832,000 km

• M1: 127,158 km (0.095 R)
• M2: 502,948 km (0.074 R)
• M3: 928,554 km (0.069 R)
• M4: 3,392,581 km (0.063 R)
• M5: 4,001,294 km (0.057 R)
• M6: 4,892,150 km (0.117 R)
• M7: 5,436,536 km (0.103 R)
• M8: 6,410,119 km (0.045 R)
• M9: 8,500,001 km (0.109 R)
• M10: 8,961,062 km (0.088 R)
• M11: 9,530,132 km (0.047 R)
• M12: 10,380,147 km (0.106 R)
• M13: 11,872,536 km (0.107 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 810.8

Radius: 4

Gravity: 50.68 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.68 AU - 9.66 AU

Year: 17930 Days

Day: 15.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 74,832,000 km

• M1: 50,564 km (0.114 R)
• M2: 175,777 km (0.106 R)
• M3: 307,274 km (0.072 R)
• M4: 546,631 km (0.086 R)
• M5: 1,554,621 km (0.106 R)
• M6: 2,234,693 km (0.088 R)
• M7: 2,431,863 km (0.099 R)
• M8: 3,509,865 km (0.098 R)
• M9: 4,588,915 km (0.091 R)
• M10: 5,317,756 km (0.047 R)
• M11: 5,590,173 km (0.108 R)
• M12: 5,871,866 km (0.083 R)
• M13: 6,162,983 km (0.097 R)
• M14: 6,728,912 km (0.087 R)
• M15: 7,963,543 km (0.058 R)
• M16: 8,217,112 km (0.041 R)
• M17: 8,371,796 km (0.107 R)
• M18: 8,794,111 km (0.073 R)
• M19: 8,955,976 km (0.117 R)
• M20: 9,285,839 km (0.11 R)
• M21: 9,453,688 km (0.091 R)
• M22: 10,809,194 km (0.06 R)
• M23: 12,155,425 km (0.104 R)
• M24: 14,192,500 km (0.059 R)
• M25: 15,098,165 km (0.047 R)
• M26: 16,692,130 km (0.113 R)
• M27: 18,045,542 km (0.117 R)
• M28: 19,745,573 km (0.101 R)
• M29: 37,624,762 km (0.03 R)
• M30: 40,981,289 km (0.046 R)
• M31: 44,215,446 km (0.105 R)
• M32: 52,768,854 km (0.057 R)
• M33: 54,022,633 km (0.119 R)
• M34: 55,113,052 km (0.108 R)
• M35: 60,007,595 km (0.036 R)
• M36: 60,201,325 km (0.091 R)
• M37: 63,159,174 km (0.109 R)
• M38: 64,571,976 km (0.108 R)
• M39: 64,775,579 km (0.104 R)
• M40: 70,218,997 km (0.105 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 18,181 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit