🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 86

Radius: 14.7

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.84 AU - 1 AU

Year: 579 Days

Day: 6.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 36,582,884 km

• M1: 182,809 km (0.108 R)
• M2: 701,913 km (0.081 R)
• M3: 1,176,288 km (0.064 R)
• M4: 1,732,942 km (0.036 R)
• M5: 2,643,095 km (0.085 R)
• M6: 3,161,153 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.6

Radius: 14.9

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.07 AU - 1.13 AU

Year: 757 Days

Day: 13.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 36,582,884 km

• M1: 185,352 km (0.029 R)
• M2: 662,120 km (0.064 R)
• M3: 1,143,676 km (0.09 R)
• M4: 1,695,542 km (0.069 R)
• M5: 2,326,995 km (0.061 R)
• M6: 5,049,676 km (0.119 R)
• M7: 5,558,010 km (0.115 R)
• M8: 7,162,447 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.9

Radius: 13.8

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 1.01 AU - 1.33 AU

Year: 830 Days

Day: 14.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 36,582,884 km

• M1: 172,038 km (0.103 R)
• M2: 620,532 km (0.118 R)
• M3: 1,504,506 km (0.099 R)
• M4: 2,140,147 km (0.091 R)
• M5: 3,416,217 km (0.091 R)
• M6: 4,403,413 km (0.117 R)
• M7: 5,682,326 km (0.083 R)
• M8: 6,428,520 km (0.11 R)
• M9: 7,613,335 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.5

Radius: 13.4

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.32 AU - 2.18 AU

Year: 1519 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,582,884 km

• M1: 166,652 km (0.119 R)
• M2: 747,391 km (0.108 R)
• M3: 1,349,373 km (0.099 R)
• M4: 1,814,173 km (0.093 R)
• M5: 3,173,120 km (0.046 R)
• M6: 3,763,284 km (0.11 R)
• M7: 5,014,969 km (0.103 R)
• M8: 6,307,196 km (0.116 R)
• M9: 6,891,675 km (0.06 R)
• M10: 7,937,663 km (0.067 R)
• M11: 9,833,966 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24.5

Radius: 10.5

Gravity: 0.22 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.72 AU - 1.98 AU

Year: 1651 Days

Day: 12.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 36,582,884 km

• M1: 131,497 km (0.098 R)
• M2: 1,004,699 km (0.088 R)
• M3: 1,370,765 km (0.106 R)
• M4: 4,245,139 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 751.3

Radius: 12.4

Gravity: 4.89 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.68 AU - 2.7 AU

Year: 2126 Days

Day: 9.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 36,582,884 km

• M1: 154,385 km (0.105 R)
• M2: 597,793 km (0.07 R)
• M3: 1,104,481 km (0.094 R)
• M4: 1,522,607 km (0.055 R)
• M5: 2,072,529 km (0.085 R)
• M6: 2,594,326 km (0.058 R)
• M7: 3,074,087 km (0.117 R)
• M8: 4,623,322 km (0.077 R)
• M9: 6,064,398 km (0.109 R)
• M10: 9,361,685 km (0.096 R)
• M11: 12,048,912 km (0.092 R)
• M12: 16,784,133 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.8

Radius: 15

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 4.1 AU - 5.82 AU

Year: 7247 Days

Day: 5.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 36,582,884 km

• M1: 186,549 km (0.089 R)
• M2: 823,686 km (0.071 R)
• M3: 2,551,691 km (0.12 R)
• M4: 3,672,329 km (0.07 R)
• M5: 4,523,241 km (0.095 R)
• M6: 6,618,659 km (0.047 R)
• M7: 8,127,353 km (0.105 R)
• M8: 8,896,585 km (0.115 R)
• M9: 9,855,209 km (0.095 R)
• M10: 10,482,323 km (0.112 R)
• M11: 19,255,640 km (0.092 R)
• M12: 25,120,774 km (0.082 R)
• M13: 25,838,245 km (0.118 R)
• M14: 28,361,064 km (0.106 R)
• M15: 31,249,499 km (0.094 R)
• M16: 31,766,659 km (0.032 R)
• M17: 37,489,077 km (0.065 R)
• M18: 41,332,545 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 411.7

Radius: 13.6

Gravity: 2.23 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 5.51 AU - 5.61 AU

Year: 8600 Days

Day: 8.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 36,582,884 km

• M1: 169,195 km (0.057 R)
• M2: 731,234 km (0.084 R)
• M3: 1,743,862 km (0.101 R)
• M4: 2,886,341 km (0.108 R)
• M5: 4,196,220 km (0.072 R)
• M6: 12,027,669 km (0.113 R)
• M7: 12,874,393 km (0.093 R)
• M8: 13,817,159 km (0.118 R)
• M9: 15,165,484 km (0.116 R)
• M10: 27,249,252 km (0.081 R)
• M11: 33,608,957 km (0.079 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 11,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit