🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.5 AU - 0.66 AU

Year: 285 Days

Day: 21.9 Hours

Environment

Temp: -118 °C

Axial Tilt: 8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 15,801,366 km

• M1: 100,530 km (0.048 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.7

Radius: 14.9

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.77 AU - 0.99 AU

Year: 533 Days

Day: 5.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 15,801,366 km

• M1: 185,352 km (0.081 R)
• M2: 658,380 km (0.065 R)
• M3: 1,339,649 km (0.109 R)
• M4: 1,817,165 km (0.058 R)
• M5: 2,363,048 km (0.097 R)
• M6: 3,030,105 km (0.063 R)
• M7: 3,662,904 km (0.109 R)
• M8: 4,151,790 km (0.07 R)
• M9: 4,888,260 km (0.117 R)
• M10: 5,639,989 km (0.044 R)
• M11: 6,372,121 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 794.6

Radius: 12.1

Gravity: 5.43 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.81 AU - 1.15 AU

Year: 626 Days

Day: 11.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 15,801,366 km

• M1: 150,795 km (0.052 R)
• M2: 980,464 km (0.093 R)
• M3: 1,405,173 km (0.039 R)
• M4: 1,808,638 km (0.1 R)
• M5: 2,432,013 km (0.039 R)
• M6: 3,764,032 km (0.065 R)
• M7: 4,786,085 km (0.12 R)
• M8: 5,552,325 km (0.104 R)
• M9: 7,197,303 km (0.117 R)
• M10: 7,827,409 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.9

Radius: 8.7

Gravity: 5.83 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.98 AU - 1.62 AU

Year: 957 Days

Day: 9 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 15,801,366 km

• M1: 108,159 km (0.076 R)
• M2: 530,923 km (0.039 R)
• M3: 1,001,707 km (0.067 R)
• M4: 1,289,833 km (0.039 R)
• M5: 1,785,151 km (0.093 R)
• M6: 2,068,191 km (0.071 R)
• M7: 2,339,262 km (0.053 R)
• M8: 2,691,565 km (0.042 R)
• M9: 3,629,693 km (0.106 R)
• M10: 4,088,510 km (0.105 R)
• M11: 4,652,494 km (0.078 R)
• M12: 5,086,328 km (0.108 R)
• M13: 5,975,238 km (0.064 R)
• M14: 6,594,424 km (0.076 R)
• M15: 7,052,941 km (0.105 R)
• M16: 7,792,254 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.1

Radius: 14.5

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.41 AU - 1.81 AU

Year: 1319 Days

Day: 10.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 15,801,366 km

• M1: 180,714 km (0.114 R)
• M2: 1,078,002 km (0.096 R)
• M3: 1,817,165 km (0.093 R)
• M4: 2,419,147 km (0.12 R)
• M5: 3,866,806 km (0.081 R)
• M6: 4,324,426 km (0.091 R)
• M7: 5,556,663 km (0.117 R)
• M8: 6,030,739 km (0.055 R)
• M9: 6,578,866 km (0.082 R)
• M10: 7,802,127 km (0.109 R)
• M11: 11,711,120 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734

Radius: 14

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.93 AU - 2.37 AU

Year: 2036 Days

Day: 12.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 15,801,366 km

• M1: 179,667 km (0.064 R)
• M2: 679,474 km (0.1 R)
• M3: 1,436,588 km (0.116 R)
• M4: 2,078,662 km (0.116 R)
• M5: 2,775,489 km (0.071 R)
• M6: 3,875,632 km (0.111 R)
• M7: 4,394,587 km (0.098 R)
• M8: 5,203,912 km (0.076 R)
• M9: 5,644,776 km (0.068 R)
• M10: 8,176,571 km (0.09 R)
• M11: 8,872,051 km (0.081 R)
• M12: 9,436,334 km (0.085 R)
• M13: 10,345,590 km (0.117 R)
• M14: 10,933,660 km (0.091 R)
• M15: 13,383,325 km (0.069 R)
• M16: 14,395,653 km (0.046 R)
• M17: 16,922,362 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.3

Radius: 13.2

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.47 AU - 2.89 AU

Year: 2833 Days

Day: 14.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 15,801,366 km

• M1: 164,109 km (0.101 R)
• M2: 679,474 km (0.091 R)
• M3: 1,122,732 km (0.107 R)
• M4: 1,608,626 km (0.107 R)
• M5: 2,025,106 km (0.095 R)
• M6: 2,581,311 km (0.104 R)
• M7: 3,350,693 km (0.079 R)
• M8: 4,462,355 km (0.079 R)
• M9: 6,193,950 km (0.053 R)
• M10: 6,887,037 km (0.073 R)
• M11: 8,644,363 km (0.066 R)
• M12: 9,151,051 km (0.096 R)
• M13: 9,982,666 km (0.115 R)
• M14: 10,973,303 km (0.096 R)
• M15: 11,720,245 km (0.063 R)
• M16: 12,341,974 km (0.047 R)
• M17: 13,149,952 km (0.12 R)
• M18: 13,949,852 km (0.04 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.6

Radius: 13.3

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.39 AU - 3.67 AU

Year: 3405 Days

Day: 10 Hours

Environment

Temp: -206 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 15,801,366 km

• M1: 169,644 km (0.106 R)
• M2: 600,336 km (0.112 R)
• M3: 1,515,576 km (0.082 R)
• M4: 3,802,479 km (0.1 R)
• M5: 4,868,064 km (0.038 R)
• M6: 5,785,398 km (0.068 R)
• M7: 6,578,866 km (0.103 R)
• M8: 8,945,205 km (0.116 R)
• M9: 9,700,225 km (0.113 R)
• M10: 10,604,395 km (0.086 R)
• M11: 11,716,655 km (0.105 R)
• M12: 14,042,303 km (0.062 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 173 - 12,404 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit