🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.2

Radius: 14.4

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.99 AU - 1.41 AU

Year: 877 Days

Day: 5.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,625,368 km

• M1: 179,069 km (0.117 R)
• M2: 678,726 km (0.063 R)
• M3: 1,284,298 km (0.058 R)
• M4: 1,789,639 km (0.032 R)
• M5: 2,347,789 km (0.108 R)
• M6: 2,962,187 km (0.09 R)
• M7: 3,641,212 km (0.057 R)
• M8: 4,160,466 km (0.114 R)
• M9: 6,102,546 km (0.025 R)
• M10: 7,252,206 km (0.109 R)
• M11: 7,750,666 km (0.086 R)
• M12: 8,199,758 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.7

Radius: 12.7

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.9 AU - 2.96 AU

Year: 2526 Days

Day: 5.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 151 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,625,368 km

• M1: 157,975 km (0.112 R)
• M2: 576,401 km (0.108 R)
• M3: 1,038,658 km (0.086 R)
• M4: 2,432,761 km (0.078 R)
• M5: 2,942,291 km (0.072 R)
• M6: 3,390,935 km (0.115 R)
• M7: 4,011,766 km (0.117 R)
• M8: 4,748,236 km (0.118 R)
• M9: 5,369,516 km (0.045 R)
• M10: 5,876,504 km (0.082 R)
• M11: 6,907,083 km (0.086 R)
• M12: 8,113,590 km (0.108 R)
• M13: 9,456,081 km (0.116 R)
• M14: 10,128,823 km (0.055 R)
• M15: 10,583,002 km (0.115 R)
• M16: 12,105,460 km (0.085 R)
• M17: 13,143,819 km (0.086 R)
• M18: 14,284,053 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144.2

Radius: 14.1

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.47 AU - 3.89 AU

Year: 3782 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,625,368 km

• M1: 176,077 km (0.072 R)
• M2: 667,356 km (0.049 R)
• M3: 1,221,018 km (0.103 R)
• M4: 1,685,818 km (0.081 R)
• M5: 2,861,358 km (0.086 R)
• M6: 3,503,582 km (0.111 R)
• M7: 4,354,196 km (0.088 R)
• M8: 5,079,596 km (0.119 R)
• M9: 5,955,042 km (0.105 R)
• M10: 6,981,583 km (0.095 R)
• M11: 7,635,475 km (0.082 R)
• M12: 8,509,875 km (0.065 R)
• M13: 9,646,370 km (0.114 R)
• M14: 11,800,130 km (0.109 R)
• M15: 14,257,724 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148

Radius: 13.4

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 4.97 AU - 5.35 AU

Year: 7816 Days

Day: 10.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 27,625,368 km

• M1: 168,746 km (0.083 R)
• M2: 1,102,686 km (0.067 R)
• M3: 1,861,746 km (0.101 R)
• M4: 4,004,735 km (0.077 R)
• M5: 4,538,500 km (0.028 R)
• M6: 5,324,188 km (0.042 R)
• M7: 5,804,846 km (0.118 R)
• M8: 7,103,655 km (0.112 R)
• M9: 9,830,525 km (0.076 R)
• M10: 12,670,341 km (0.106 R)
• M11: 13,096,097 km (0.096 R)
• M12: 13,629,413 km (0.117 R)
• M13: 15,691,919 km (0.099 R)
• M14: 18,014,276 km (0.054 R)
• M15: 19,041,415 km (0.061 R)
• M16: 21,278,502 km (0.116 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 385.9

Radius: 7.6

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 5.65 AU - 5.95 AU

Year: 9315 Days

Day: 18.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,625,368 km

• M1: 114,592 km (0.089 R)
• M2: 869,313 km (0.068 R)
• M3: 2,080,607 km (0.094 R)
• M4: 2,709,367 km (0.096 R)
• M5: 3,549,509 km (0.107 R)
• M6: 4,718,167 km (0.094 R)
• M7: 5,544,546 km (0.103 R)
• M8: 6,708,866 km (0.065 R)
• M9: 6,960,041 km (0.098 R)
• M10: 10,581,805 km (0.03 R)
• M11: 13,291,920 km (0.077 R)
• M12: 15,294,886 km (0.075 R)
• M13: 16,956,320 km (0.088 R)
• M14: 22,738,278 km (0.066 R)
• M15: 33,940,167 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 52.9

Radius: 4.5

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 7.84 AU - 8.62 AU

Year: 15745 Days

Day: 22 Hours

Environment

Temp: -233 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 27,625,368 km

• M1: 55,950 km (0.03 R)
• M2: 242,049 km (0.107 R)
• M3: 476,469 km (0.117 R)
• M4: 687,402 km (0.075 R)
• M5: 1,028,785 km (0.055 R)
• M6: 1,429,856 km (0.093 R)
• M7: 1,873,863 km (0.03 R)
• M8: 3,713,019 km (0.073 R)
• M9: 4,794,612 km (0.083 R)
• M10: 15,090,685 km (0.027 R)
• M11: 17,348,117 km (0.059 R)
• M12: 19,165,881 km (0.075 R)
• M13: 19,622,902 km (0.106 R)
• M14: 23,322,009 km (0.109 R)
• M15: 24,600,323 km (0.072 R)
• M16: 25,451,983 km (0.076 R)
• M17: 26,083,586 km (0.086 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 245 - 15,935 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit