🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.51 AU - 0.75 AU

Year: 323 Days

Day: 25.5 Hours

Environment

Temp: -125 °C

Axial Tilt: 13.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559

Radius: 14.4

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.75 AU - 1.17 AU

Year: 607 Days

Day: 12.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,765,671 km

• M1: 179,069 km (0.03 R)
• M2: 689,347 km (0.108 R)
• M3: 1,177,036 km (0.111 R)
• M4: 1,785,750 km (0.119 R)
• M5: 3,138,563 km (0.106 R)
• M6: 4,217,912 km (0.051 R)
• M7: 5,549,483 km (0.084 R)
• M8: 6,313,030 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.6

Radius: 13.1

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.58 AU - 4.42 AU

Year: 5165 Days

Day: 7 Hours

Environment

Temp: -206 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,765,671 km

• M1: 163,959 km (0.096 R)
• M2: 857,645 km (0.093 R)
• M3: 1,395,299 km (0.099 R)
• M4: 2,132,069 km (0.098 R)
• M5: 3,551,603 km (0.107 R)
• M6: 4,124,563 km (0.116 R)
• M7: 4,866,868 km (0.09 R)
• M8: 5,293,521 km (0.051 R)
• M9: 7,697,110 km (0.077 R)
• M10: 8,661,118 km (0.089 R)
• M11: 9,324,734 km (0.092 R)
• M12: 10,904,488 km (0.117 R)
• M13: 14,913,113 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.9

Radius: 10.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 3.91 AU - 5.29 AU

Year: 6370 Days

Day: 5.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 50,765,671 km

• M1: 129,701 km (0.072 R)
• M2: 618,288 km (0.114 R)
• M3: 1,337,255 km (0.088 R)
• M4: 2,530,897 km (0.091 R)
• M5: 2,898,608 km (0.086 R)
• M6: 3,723,641 km (0.084 R)
• M7: 5,065,982 km (0.097 R)
• M8: 5,808,137 km (0.072 R)
• M9: 6,706,622 km (0.089 R)
• M10: 7,852,841 km (0.117 R)
• M11: 8,915,584 km (0.108 R)
• M12: 9,847,579 km (0.084 R)
• M13: 10,685,776 km (0.083 R)
• M14: 15,353,828 km (0.112 R)
• M15: 17,770,432 km (0.114 R)
• M16: 18,383,933 km (0.101 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 943.8

Radius: 3.4

Gravity: 81.64 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.51 AU - 7.43 AU

Year: 10626 Days

Day: 24.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 50,765,671 km

• M1: 52,509 km (0.096 R)
• M2: 207,941 km (0.115 R)
• M3: 355,295 km (0.101 R)
• M4: 593,904 km (0.075 R)
• M5: 1,017,714 km (0.049 R)
• M6: 3,184,789 km (0.088 R)
• M7: 3,839,429 km (0.055 R)
• M8: 4,124,712 km (0.115 R)
• M9: 4,737,765 km (0.113 R)
• M10: 5,878,149 km (0.107 R)
• M11: 6,141,741 km (0.096 R)
• M12: 6,452,455 km (0.059 R)
• M13: 11,498,541 km (0.11 R)
• M14: 12,701,458 km (0.107 R)
• M15: 15,781,229 km (0.093 R)
• M16: 18,996,835 km (0.116 R)
• M17: 28,138,911 km (0.034 R)
• M18: 41,864,216 km (0.058 R)
• M19: 47,625,230 km (0.046 R)
• M20: 51,165,613 km (0.089 R)
• M21: 51,798,712 km (0.082 R)
• M22: 53,080,466 km (0.099 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 182.4

Radius: 3

Gravity: 20.27 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 7.52 AU - 9.56 AU

Year: 16114 Days

Day: 17.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 50,765,671 km

• M1: 40,990 km (0.05 R)
• M2: 163,810 km (0.098 R)
• M3: 366,066 km (0.09 R)
• M4: 559,346 km (0.116 R)
• M5: 1,124,527 km (0.084 R)
• M6: 1,227,002 km (0.081 R)
• M7: 1,545,346 km (0.108 R)
• M8: 1,964,070 km (0.041 R)
• M9: 2,324,452 km (0.056 R)
• M10: 2,435,154 km (0.074 R)
• M11: 4,213,274 km (0.087 R)
• M12: 5,236,075 km (0.056 R)
• M13: 6,668,624 km (0.08 R)
• M14: 6,817,325 km (0.082 R)
• M15: 9,002,650 km (0.115 R)
• M16: 9,696,784 km (0.05 R)
• M17: 10,178,938 km (0.043 R)
• M18: 11,506,769 km (0.063 R)
• M19: 11,613,432 km (0.111 R)
• M20: 12,888,305 km (0.04 R)
• M21: 18,190,203 km (0.093 R)
• M22: 22,046,238 km (0.102 R)
• M23: 24,514,753 km (0.118 R)
• M24: 27,540,519 km (0.115 R)
• M25: 32,054,635 km (0.055 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.1

Radius: 4.1

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 9.86 AU - 11.12 AU

Year: 21937 Days

Day: 21 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 50,765,671 km

• M1: 51,013 km (0.082 R)
• M2: 196,272 km (0.079 R)
• M3: 398,828 km (0.064 R)
• M4: 760,855 km (0.068 R)
• M5: 1,038,209 km (0.117 R)
• M6: 1,475,783 km (0.111 R)
• M7: 4,196,669 km (0.053 R)
• M8: 4,987,294 km (0.115 R)
• M9: 5,417,836 km (0.08 R)
• M10: 8,081,127 km (0.11 R)
• M11: 8,674,133 km (0.061 R)
• M12: 9,246,644 km (0.111 R)
• M13: 10,896,111 km (0.109 R)
• M14: 26,408,363 km (0.061 R)
• M15: 27,606,193 km (0.082 R)
• M16: 38,016,708 km (0.049 R)
• M17: 42,713,782 km (0.115 R)
• M18: 43,807,642 km (0.068 R)
• M19: 44,361,603 km (0.06 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: 211 - 11,885 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit