🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.3

Radius: 14.5

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.67 AU - 0.93 AU

Year: 494 Days

Day: 5.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,929,143 km

• M1: 180,265 km (0.118 R)
• M2: 696,079 km (0.108 R)
• M3: 1,184,815 km (0.025 R)
• M4: 1,665,174 km (0.097 R)
• M5: 2,786,410 km (0.082 R)
• M6: 3,238,046 km (0.082 R)
• M7: 3,805,321 km (0.078 R)
• M8: 4,321,134 km (0.111 R)
• M9: 4,820,642 km (0.103 R)
• M10: 5,495,029 km (0.065 R)
• M11: 5,954,893 km (0.076 R)
• M12: 6,498,232 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.7

Radius: 13.8

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.75 AU - 0.91 AU

Year: 522 Days

Day: 13.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 35,929,143 km

• M1: 171,888 km (0.077 R)
• M2: 622,028 km (0.118 R)
• M3: 1,106,426 km (0.03 R)
• M4: 1,557,015 km (0.099 R)
• M5: 2,047,396 km (0.026 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.5

Radius: 10.8

Gravity: 5.66 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.66 AU - 1.06 AU

Year: 551 Days

Day: 11.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,929,143 km

• M1: 134,339 km (0.078 R)
• M2: 959,072 km (0.056 R)
• M3: 1,472,492 km (0.116 R)
• M4: 1,814,173 km (0.101 R)
• M5: 2,173,059 km (0.069 R)
• M6: 2,715,800 km (0.043 R)
• M7: 3,083,511 km (0.081 R)
• M8: 3,798,140 km (0.088 R)
• M9: 4,245,737 km (0.082 R)
• M10: 6,097,011 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.2

Radius: 10.5

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.24 AU - 1.82 AU

Year: 1306 Days

Day: 9.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 35,929,143 km

• M1: 130,599 km (0.085 R)
• M2: 671,096 km (0.088 R)
• M3: 1,109,119 km (0.105 R)
• M4: 1,606,681 km (0.086 R)
• M5: 1,965,417 km (0.095 R)
• M6: 2,930,024 km (0.108 R)
• M7: 3,410,233 km (0.066 R)
• M8: 4,547,925 km (0.103 R)
• M9: 4,893,047 km (0.077 R)
• M10: 5,359,493 km (0.082 R)
• M11: 6,668,923 km (0.107 R)
• M12: 7,372,333 km (0.097 R)
• M13: 7,823,221 km (0.108 R)
• M14: 8,519,599 km (0.078 R)
• M15: 8,897,782 km (0.107 R)
• M16: 9,256,817 km (0.077 R)
• M17: 10,068,086 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.1

Radius: 14.3

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.67 AU - 1.79 AU

Year: 1571 Days

Day: 10.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,929,143 km

• M1: 204,949 km (0.117 R)
• M2: 753,076 km (0.076 R)
• M3: 1,839,455 km (0.104 R)
• M4: 2,300,965 km (0.053 R)
• M5: 2,756,790 km (0.092 R)
• M6: 3,577,633 km (0.053 R)
• M7: 4,275,806 km (0.099 R)
• M8: 4,831,712 km (0.094 R)
• M9: 5,303,394 km (0.117 R)
• M10: 6,511,247 km (0.085 R)
• M11: 6,997,740 km (0.116 R)
• M12: 7,944,694 km (0.073 R)
• M13: 8,526,929 km (0.093 R)
• M14: 9,056,356 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.1

Radius: 14.9

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.17 AU - 3.37 AU

Year: 3182 Days

Day: 13.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,929,143 km

• M1: 185,352 km (0.094 R)
• M2: 952,639 km (0.099 R)
• M3: 1,422,227 km (0.118 R)
• M4: 2,106,338 km (0.111 R)
• M5: 2,783,418 km (0.073 R)
• M6: 3,889,844 km (0.117 R)
• M7: 4,371,549 km (0.039 R)
• M8: 4,917,880 km (0.114 R)
• M9: 5,430,104 km (0.041 R)
• M10: 6,091,775 km (0.09 R)
• M11: 8,370,450 km (0.052 R)
• M12: 9,920,284 km (0.104 R)
• M13: 10,491,149 km (0.088 R)
• M14: 13,782,153 km (0.093 R)
• M15: 15,662,299 km (0.08 R)
• M16: 17,590,017 km (0.086 R)
• M17: 18,065,738 km (0.113 R)
• M18: 18,733,992 km (0.119 R)
• M19: 19,544,812 km (0.075 R)
• M20: 20,640,317 km (0.115 R)
• M21: 25,060,037 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.7

Radius: 8.1

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.82 AU - 4.44 AU

Year: 4774 Days

Day: 13.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 35,929,143 km

• M1: 101,128 km (0.096 R)
• M2: 418,276 km (0.098 R)
• M3: 878,140 km (0.071 R)
• M4: 1,268,291 km (0.102 R)
• M5: 1,589,926 km (0.109 R)
• M6: 1,966,015 km (0.059 R)
• M7: 2,827,549 km (0.098 R)
• M8: 3,603,364 km (0.104 R)
• M9: 4,209,983 km (0.091 R)
• M10: 4,882,874 km (0.094 R)
• M11: 5,966,113 km (0.101 R)
• M12: 7,038,430 km (0.096 R)
• M13: 7,879,469 km (0.113 R)
• M14: 9,284,044 km (0.115 R)
• M15: 11,331,889 km (0.115 R)
• M16: 11,968,278 km (0.105 R)
• M17: 15,734,554 km (0.08 R)
• M18: 17,824,287 km (0.109 R)
• M19: 18,497,926 km (0.064 R)
• M20: 19,252,199 km (0.059 R)
• M21: 20,889,248 km (0.075 R)
• M22: 22,901,938 km (0.058 R)
• M23: 23,333,827 km (0.1 R)
• M24: 24,587,457 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 269.4

Radius: 5.2

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 5.09 AU - 7.07 AU

Year: 10348 Days

Day: 19.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 39.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 35,929,143 km

• M1: 64,626 km (0.119 R)
• M2: 334,650 km (0.065 R)
• M3: 739,612 km (0.106 R)
• M4: 976,126 km (0.062 R)
• M5: 1,940,883 km (0.099 R)
• M6: 2,274,935 km (0.045 R)
• M7: 3,203,788 km (0.113 R)
• M8: 4,232,573 km (0.054 R)
• M9: 4,822,138 km (0.029 R)
• M10: 8,570,911 km (0.099 R)
• M11: 8,904,963 km (0.111 R)
• M12: 9,914,000 km (0.088 R)
• M13: 11,592,189 km (0.084 R)
• M14: 12,471,974 km (0.116 R)
• M15: 12,685,301 km (0.109 R)
• M16: 13,284,441 km (0.062 R)
• M17: 13,959,277 km (0.108 R)
• M18: 17,413,641 km (0.066 R)
• M19: 17,747,244 km (0.11 R)
• M20: 18,983,671 km (0.085 R)
• M21: 20,645,703 km (0.119 R)
• M22: 21,934,788 km (0.112 R)
• M23: 28,266,069 km (0.033 R)
• M24: 29,380,274 km (0.115 R)
• M25: 32,293,692 km (0.058 R)
• M26: 33,306,021 km (0.087 R)
• M27: 35,821,659 km (0.071 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 16,089 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit