🌌 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 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.5

Radius: 12.7

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.53 AU - 0.71 AU

Year: 337 Days

Day: 13.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,985,872 km

• M1: 157,975 km (0.059 R)
• M2: 636,988 km (0.084 R)
• M3: 1,158,785 km (0.064 R)
• M4: 1,572,722 km (0.119 R)
• M5: 2,142,391 km (0.061 R)
• M6: 2,639,355 km (0.107 R)
• M7: 3,036,538 km (0.119 R)
• M8: 4,531,170 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.5

Radius: 15

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.63 AU - 0.87 AU

Year: 448 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,985,872 km

• M1: 186,549 km (0.034 R)
• M2: 727,494 km (0.109 R)
• M3: 1,218,624 km (0.096 R)
• M4: 1,711,848 km (0.09 R)
• M5: 2,308,295 km (0.074 R)
• M6: 2,788,056 km (0.103 R)
• M7: 3,422,201 km (0.085 R)
• M8: 4,581,435 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.5

Radius: 9.2

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.84 AU - 1.24 AU

Year: 732 Days

Day: 8.1 Hours

Environment

Temp: -172 °C

Axial Tilt: 156.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 28,985,872 km

• M1: 114,442 km (0.099 R)
• M2: 575,353 km (0.035 R)
• M3: 1,249,890 km (0.105 R)
• M4: 1,780,663 km (0.101 R)
• M5: 2,496,040 km (0.098 R)
• M6: 2,856,571 km (0.111 R)
• M7: 3,545,769 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 919.3

Radius: 14.7

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.87 AU - 1.31 AU

Year: 786 Days

Day: 7.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,985,872 km

• M1: 184,005 km (0.045 R)
• M2: 782,696 km (0.083 R)
• M3: 1,275,023 km (0.068 R)
• M4: 1,898,846 km (0.103 R)
• M5: 2,724,028 km (0.105 R)
• M6: 5,220,517 km (0.094 R)
• M7: 5,842,395 km (0.101 R)
• M8: 6,469,809 km (0.1 R)
• M9: 7,072,838 km (0.103 R)
• M10: 8,732,925 km (0.08 R)
• M11: 9,527,140 km (0.031 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.7

Radius: 11.3

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.57 AU - 1.67 AU

Year: 1423 Days

Day: 9.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,985,872 km

• M1: 147,204 km (0.116 R)
• M2: 517,010 km (0.101 R)
• M3: 1,155,494 km (0.101 R)
• M4: 1,725,462 km (0.079 R)
• M5: 2,538,077 km (0.111 R)
• M6: 2,901,002 km (0.048 R)
• M7: 4,530,272 km (0.079 R)
• M8: 4,910,550 km (0.114 R)
• M9: 5,479,172 km (0.113 R)
• M10: 6,251,246 km (0.106 R)
• M11: 7,400,457 km (0.097 R)
• M12: 9,065,631 km (0.056 R)
• M13: 11,940,902 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.9

Radius: 10.4

Gravity: 2.98 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.63 AU - 3.41 AU

Year: 3623 Days

Day: 6.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,985,872 km

• M1: 129,402 km (0.099 R)
• M2: 597,643 km (0.059 R)
• M3: 970,741 km (0.1 R)
• M4: 1,866,233 km (0.04 R)
• M5: 2,235,441 km (0.119 R)
• M6: 2,961,290 km (0.09 R)
• M7: 4,111,249 km (0.101 R)
• M8: 5,152,899 km (0.11 R)
• M9: 5,786,146 km (0.051 R)
• M10: 6,889,431 km (0.106 R)
• M11: 7,446,084 km (0.116 R)
• M12: 7,844,015 km (0.085 R)
• M13: 9,297,358 km (0.05 R)
• M14: 9,831,572 km (0.1 R)
• M15: 11,277,136 km (0.061 R)
• M16: 11,680,003 km (0.079 R)
• M17: 12,600,180 km (0.089 R)
• M18: 13,703,913 km (0.086 R)
• M19: 14,632,317 km (0.052 R)
• M20: 15,306,705 km (0.105 R)
• M21: 15,701,344 km (0.075 R)
• M22: 16,052,151 km (0.039 R)
• M23: 17,136,286 km (0.102 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.9

Radius: 4.2

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.85 AU - 8.19 AU

Year: 12839 Days

Day: 21.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,985,872 km

• M1: 52,509 km (0.095 R)
• M2: 194,328 km (0.116 R)
• M3: 360,381 km (0.056 R)
• M4: 1,169,556 km (0.083 R)
• M5: 1,314,217 km (0.104 R)
• M6: 2,242,173 km (0.065 R)
• M7: 3,373,582 km (0.108 R)
• M8: 3,756,403 km (0.066 R)
• M9: 3,890,293 km (0.114 R)
• M10: 4,359,731 km (0.105 R)
• M11: 5,844,789 km (0.108 R)
• M12: 7,184,139 km (0.072 R)
• M13: 9,976,532 km (0.084 R)
• M14: 12,904,462 km (0.099 R)
• M15: 14,209,554 km (0.084 R)
• M16: 16,417,319 km (0.057 R)
• M17: 16,596,089 km (0.083 R)
• M18: 18,009,938 km (0.079 R)
• M19: 20,312,399 km (0.052 R)
• M20: 21,569,470 km (0.116 R)
• M21: 23,854,727 km (0.099 R)
• M22: 25,173,881 km (0.103 R)
• M23: 26,377,545 km (0.1 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 418 - 12,907 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit