🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.5

Radius: 8.2

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.59 AU - 0.63 AU

Year: 318 Days

Day: 8.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 18,088,179 km

• M1: 102,026 km (0.107 R)
• M2: 379,829 km (0.082 R)
• M3: 807,081 km (0.095 R)
• M4: 1,094,308 km (0.057 R)
• M5: 1,840,652 km (0.101 R)
• M6: 2,209,860 km (0.103 R)
• M7: 2,619,010 km (0.05 R)
• M8: 3,027,711 km (0.116 R)
• M9: 3,305,664 km (0.094 R)
• M10: 3,634,630 km (0.095 R)
• M11: 3,925,299 km (0.047 R)
• M12: 4,231,525 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.6

Radius: 11.4

Gravity: 6.01 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.73 AU - 1.15 AU

Year: 608 Days

Day: 9.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 18,088,179 km

• M1: 142,118 km (0.027 R)
• M2: 568,622 km (0.082 R)
• M3: 976,724 km (0.071 R)
• M4: 1,874,761 km (0.091 R)
• M5: 2,376,063 km (0.065 R)
• M6: 2,826,652 km (0.084 R)
• M7: 3,207,977 km (0.091 R)
• M8: 3,788,865 km (0.057 R)
• M9: 4,470,134 km (0.109 R)
• M10: 5,301,599 km (0.063 R)
• M11: 6,000,071 km (0.118 R)
• M12: 6,512,594 km (0.105 R)
• M13: 7,205,232 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.5

Radius: 8.1

Gravity: 14.69 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.78 AU - 1.16 AU

Year: 637 Days

Day: 6.8 Hours

Environment

Temp: -174 °C

Axial Tilt: 9.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 18,088,179 km

• M1: 100,979 km (0.088 R)
• M2: 396,734 km (0.059 R)
• M3: 710,141 km (0.059 R)
• M4: 1,007,990 km (0.079 R)
• M5: 1,389,914 km (0.097 R)
• M6: 1,660,387 km (0.033 R)
• M7: 2,217,639 km (0.06 R)
• M8: 2,681,392 km (0.098 R)
• M9: 2,942,740 km (0.038 R)
• M10: 3,234,306 km (0.115 R)
• M11: 3,773,307 km (0.089 R)
• M12: 4,517,108 km (0.082 R)
• M13: 4,820,043 km (0.113 R)
• M14: 5,466,755 km (0.086 R)
• M15: 5,968,955 km (0.062 R)
• M16: 7,020,778 km (0.101 R)
• M17: 7,359,168 km (0.082 R)
• M18: 8,340,081 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102

Radius: 11.5

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.97 AU - 1.47 AU

Year: 899 Days

Day: 14.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,088,179 km

• M1: 143,614 km (0.103 R)
• M2: 520,601 km (0.044 R)
• M3: 958,324 km (0.098 R)
• M4: 1,721,423 km (0.061 R)
• M5: 2,126,235 km (0.106 R)
• M6: 2,512,047 km (0.078 R)
• M7: 3,068,851 km (0.096 R)
• M8: 3,635,378 km (0.082 R)
• M9: 4,051,110 km (0.117 R)
• M10: 4,877,489 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.4

Radius: 15

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.14 AU - 1.44 AU

Year: 977 Days

Day: 9.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 99.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 18,088,179 km

• M1: 186,549 km (0.079 R)
• M2: 696,827 km (0.092 R)
• M3: 1,166,265 km (0.039 R)
• M4: 1,683,425 km (0.11 R)
• M5: 2,184,727 km (0.109 R)
• M6: 2,822,463 km (0.099 R)
• M7: 3,324,065 km (0.072 R)
• M8: 4,899,779 km (0.111 R)
• M9: 5,923,776 km (0.072 R)
• M10: 6,842,457 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.6

Radius: 12.4

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.59 AU - 2.39 AU

Year: 1872 Days

Day: 6.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 18,088,179 km

• M1: 155,133 km (0.055 R)
• M2: 546,331 km (0.117 R)
• M3: 1,450,351 km (0.113 R)
• M4: 1,847,833 km (0.109 R)
• M5: 2,435,902 km (0.056 R)
• M6: 3,258,840 km (0.103 R)
• M7: 3,843,917 km (0.043 R)
• M8: 4,518,454 km (0.098 R)
• M9: 6,514,239 km (0.11 R)
• M10: 7,107,694 km (0.119 R)
• M11: 7,736,903 km (0.055 R)
• M12: 8,278,896 km (0.05 R)
• M13: 9,238,865 km (0.106 R)
• M14: 10,632,519 km (0.114 R)
• M15: 11,766,471 km (0.1 R)
• M16: 12,161,858 km (0.119 R)
• M17: 13,702,716 km (0.093 R)
• M18: 14,407,921 km (0.094 R)
• M19: 15,323,310 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.1

Radius: 5.1

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.48 AU - 6.44 AU

Year: 9703 Days

Day: 20.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 18,088,179 km

• M1: 63,729 km (0.084 R)
• M2: 242,498 km (0.099 R)
• M3: 555,008 km (0.099 R)
• M4: 816,505 km (0.095 R)
• M5: 998,865 km (0.111 R)
• M6: 1,887,476 km (0.097 R)
• M7: 2,158,099 km (0.089 R)
• M8: 2,686,628 km (0.098 R)
• M9: 3,178,207 km (0.057 R)
• M10: 7,104,253 km (0.039 R)
• M11: 8,356,537 km (0.025 R)
• M12: 9,965,313 km (0.075 R)
• M13: 12,515,059 km (0.057 R)
• M14: 13,291,322 km (0.098 R)
• M15: 15,130,329 km (0.059 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: 222 - 14,429 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit