🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.55 AU - 0.55 AU

Year: 268 Days

Day: 34.2 Hours

Environment

Temp: -117 °C

Axial Tilt: 131.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,142,869 km

• M1: 46,824 km (0.087 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.53 AU - 0.79 AU

Year: 352 Days

Day: 27 Hours

Environment

Temp: -134 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 45,142,869 km

• M1: 384,915 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 36.7

Radius: 9.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.59 AU - 0.77 AU

Year: 368 Days

Day: 5.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 45,142,869 km

• M1: 123,867 km (0.092 R)
• M2: 829,071 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.6

Radius: 14.5

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 0.99 AU - 1.09 AU

Year: 696 Days

Day: 12.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 45,142,869 km

• M1: 180,265 km (0.065 R)
• M2: 857,794 km (0.093 R)
• M3: 2,240,677 km (0.096 R)
• M4: 3,193,466 km (0.092 R)
• M5: 4,077,140 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 434.2

Radius: 12.2

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.54 AU - 2.06 AU

Year: 1584 Days

Day: 7 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 45,142,869 km

• M1: 151,842 km (0.057 R)
• M2: 599,289 km (0.045 R)
• M3: 1,002,455 km (0.118 R)
• M4: 1,569,431 km (0.089 R)
• M5: 2,132,218 km (0.086 R)
• M6: 3,257,643 km (0.115 R)
• M7: 3,894,631 km (0.061 R)
• M8: 4,287,325 km (0.075 R)
• M9: 4,801,493 km (0.072 R)
• M10: 5,295,017 km (0.04 R)
• M11: 7,308,305 km (0.096 R)
• M12: 8,208,435 km (0.116 R)
• M13: 9,390,707 km (0.061 R)
• M14: 9,881,687 km (0.101 R)
• M15: 10,815,477 km (0.077 R)
• M16: 11,983,986 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.5

Radius: 11.9

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.43 AU - 2.99 AU

Year: 2927 Days

Day: 8.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 45,142,869 km

• M1: 164,857 km (0.103 R)
• M2: 549,623 km (0.096 R)
• M3: 1,026,690 km (0.086 R)
• M4: 1,428,360 km (0.088 R)
• M5: 2,304,256 km (0.079 R)
• M6: 2,703,084 km (0.115 R)
• M7: 4,381,422 km (0.113 R)
• M8: 4,975,476 km (0.075 R)
• M9: 5,571,174 km (0.097 R)
• M10: 8,894,940 km (0.074 R)
• M11: 10,234,589 km (0.114 R)
• M12: 12,268,521 km (0.097 R)
• M13: 12,759,801 km (0.058 R)
• M14: 14,361,994 km (0.113 R)
• M15: 15,831,344 km (0.117 R)
• M16: 17,011,223 km (0.117 R)
• M17: 18,771,990 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 585.8

Radius: 4.8

Gravity: 25.43 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 5.31 AU - 6.89 AU

Year: 9883 Days

Day: 19.2 Hours

Environment

Temp: -220 °C

Axial Tilt: 73 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 45,142,869 km

• M1: 59,989 km (0.097 R)
• M2: 587,022 km (0.12 R)
• M3: 798,404 km (0.1 R)
• M4: 1,402,779 km (0.092 R)
• M5: 1,816,118 km (0.1 R)
• M6: 3,166,837 km (0.057 R)
• M7: 3,847,956 km (0.11 R)
• M8: 4,140,570 km (0.048 R)
• M9: 6,110,624 km (0.063 R)
• M10: 7,080,018 km (0.091 R)
• M11: 8,062,128 km (0.119 R)
• M12: 9,460,719 km (0.113 R)
• M13: 10,343,197 km (0.107 R)
• M14: 11,013,545 km (0.1 R)
• M15: 13,619,091 km (0.099 R)
• M16: 14,741,524 km (0.055 R)
• M17: 19,850,141 km (0.106 R)
• M18: 20,322,572 km (0.091 R)
• M19: 22,712,248 km (0.078 R)
• M20: 23,055,874 km (0.087 R)
• M21: 26,780,712 km (0.082 R)
• M22: 28,835,289 km (0.071 R)
• M23: 29,747,088 km (0.069 R)
• M24: 30,887,472 km (0.059 R)
• M25: 33,698,117 km (0.067 R)
• M26: 35,509,897 km (0.104 R)
• M27: 37,864,717 km (0.116 R)
• M28: 43,671,358 km (0.115 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 406 - 15,375 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit