🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 771.3

Radius: 10.6

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.5 AU - 0.56 AU

Year: 266 Days

Day: 6.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 62,435,053 km

• M1: 131,796 km (0.12 R)
• M2: 467,793 km (0.097 R)
• M3: 960,867 km (0.068 R)
• M4: 1,476,830 km (0.106 R)
• M5: 1,852,321 km (0.076 R)
• M6: 2,572,635 km (0.072 R)
• M7: 3,647,944 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.4

Radius: 13

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.57 AU - 0.79 AU

Year: 387 Days

Day: 12.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,435,053 km

• M1: 161,715 km (0.117 R)
• M2: 731,534 km (0.092 R)
• M3: 1,171,052 km (0.054 R)
• M4: 1,755,980 km (0.116 R)
• M5: 2,177,995 km (0.072 R)
• M6: 2,589,838 km (0.098 R)
• M7: 3,054,340 km (0.109 R)
• M8: 3,526,022 km (0.073 R)
• M9: 4,086,415 km (0.077 R)
• M10: 4,839,940 km (0.071 R)
• M11: 5,258,515 km (0.076 R)
• M12: 5,802,901 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502

Radius: 8.8

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.8 AU - 1.28 AU

Year: 732 Days

Day: 10.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 62,435,053 km

• M1: 109,506 km (0.099 R)
• M2: 590,014 km (0.072 R)
• M3: 1,029,981 km (0.103 R)
• M4: 1,322,595 km (0.082 R)
• M5: 1,834,668 km (0.051 R)
• M6: 2,156,304 km (0.107 R)
• M7: 2,600,759 km (0.076 R)
• M8: 3,117,470 km (0.109 R)
• M9: 3,459,301 km (0.063 R)
• M10: 3,983,043 km (0.104 R)
• M11: 4,464,300 km (0.116 R)
• M12: 5,524,799 km (0.118 R)
• M13: 5,970,152 km (0.059 R)
• M14: 6,499,728 km (0.105 R)
• M15: 6,828,096 km (0.1 R)
• M16: 7,102,907 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 500

Radius: 11.1

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.05 AU - 1.11 AU

Year: 775 Days

Day: 5.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,435,053 km

• M1: 138,079 km (0.095 R)
• M2: 564,134 km (0.078 R)
• M3: 1,641,388 km (0.113 R)
• M4: 2,234,543 km (0.074 R)
• M5: 2,954,408 km (0.07 R)
• M6: 3,951,478 km (0.118 R)
• M7: 4,448,891 km (0.089 R)
• M8: 5,090,367 km (0.072 R)
• M9: 6,157,448 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.3

Radius: 13.9

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.89 AU - 1.31 AU

Year: 796 Days

Day: 8.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,435,053 km

• M1: 173,085 km (0.082 R)
• M2: 678,576 km (0.06 R)
• M3: 1,132,755 km (0.071 R)
• M4: 1,800,261 km (0.053 R)
• M5: 2,314,129 km (0.116 R)
• M6: 2,973,108 km (0.087 R)
• M7: 3,484,583 km (0.077 R)
• M8: 4,278,499 km (0.104 R)
• M9: 4,917,282 km (0.077 R)
• M10: 5,748,747 km (0.073 R)
• M11: 7,311,446 km (0.089 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.9

Radius: 11.5

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.33 AU - 1.93 AU

Year: 1436 Days

Day: 5.3 Hours

Environment

Temp: -204 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,435,053 km

• M1: 144,512 km (0.112 R)
• M2: 527,332 km (0.113 R)
• M3: 969,693 km (0.069 R)
• M4: 1,943,276 km (0.059 R)
• M5: 2,350,332 km (0.116 R)
• M6: 3,324,214 km (0.088 R)
• M7: 3,929,487 km (0.113 R)
• M8: 4,379,029 km (0.08 R)
• M9: 4,783,093 km (0.077 R)
• M10: 5,254,326 km (0.057 R)
• M11: 6,532,640 km (0.103 R)
• M12: 7,701,897 km (0.09 R)
• M13: 8,793,961 km (0.065 R)
• M14: 10,350,826 km (0.047 R)
• M15: 10,758,630 km (0.104 R)
• M16: 11,788,761 km (0.116 R)
• M17: 12,308,913 km (0.08 R)
• M18: 12,922,264 km (0.103 R)
• M19: 13,315,856 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859

Radius: 14.2

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.45 AU - 1.91 AU

Year: 1503 Days

Day: 13.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,435,053 km

• M1: 176,675 km (0.119 R)
• M2: 627,862 km (0.117 R)
• M3: 1,128,417 km (0.114 R)
• M4: 2,350,183 km (0.075 R)
• M5: 2,864,051 km (0.057 R)
• M6: 3,405,147 km (0.077 R)
• M7: 3,855,436 km (0.108 R)
• M8: 5,519,862 km (0.025 R)
• M9: 6,463,675 km (0.039 R)
• M10: 7,429,928 km (0.057 R)
• M11: 8,165,052 km (0.098 R)
• M12: 8,948,346 km (0.12 R)
• M13: 9,390,558 km (0.107 R)
• M14: 9,847,429 km (0.103 R)
• M15: 11,054,834 km (0.083 R)
• M16: 11,750,614 km (0.114 R)
• M17: 12,475,415 km (0.119 R)
• M18: 13,805,041 km (0.068 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 457.3

Radius: 13.5

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 3.92 AU - 6.24 AU

Year: 7903 Days

Day: 10.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,435,053 km

• M1: 168,896 km (0.114 R)
• M2: 967,150 km (0.096 R)
• M3: 1,544,149 km (0.03 R)
• M4: 2,265,959 km (0.039 R)
• M5: 3,001,681 km (0.08 R)
• M6: 4,676,878 km (0.068 R)
• M7: 5,296,064 km (0.038 R)
• M8: 6,261,120 km (0.047 R)
• M9: 6,908,579 km (0.041 R)
• M10: 8,911,545 km (0.095 R)
• M11: 9,821,250 km (0.104 R)
• M12: 14,436,045 km (0.07 R)
• M13: 15,204,529 km (0.08 R)
• M14: 16,887,655 km (0.075 R)
• M15: 18,280,261 km (0.112 R)
• M16: 22,445,365 km (0.094 R)
• M17: 25,294,756 km (0.116 R)
• M18: 27,204,522 km (0.108 R)
• M19: 28,468,774 km (0.063 R)
• M20: 31,407,325 km (0.08 R)
• M21: 35,278,319 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 358

Radius: 3.9

Gravity: 23.54 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 8.42 AU - 10.8 AU

Year: 20563 Days

Day: 15.7 Hours

Environment

Temp: -243 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,435,053 km

• M1: 48,470 km (0.118 R)
• M2: 242,648 km (0.109 R)
• M3: 483,201 km (0.104 R)
• M4: 659,876 km (0.11 R)
• M5: 943,663 km (0.086 R)
• M6: 1,925,175 km (0.079 R)
• M7: 2,270,148 km (0.116 R)
• M8: 2,632,623 km (0.117 R)
• M9: 11,662,949 km (0.086 R)
• M10: 13,795,317 km (0.042 R)
• M11: 14,988,959 km (0.115 R)
• M12: 16,945,250 km (0.094 R)
• M13: 20,721,848 km (0.112 R)
• M14: 21,447,099 km (0.044 R)
• M15: 25,124,663 km (0.043 R)
• M16: 28,308,704 km (0.101 R)
• M17: 40,566,155 km (0.119 R)
• M18: 44,029,047 km (0.072 R)
• M19: 48,628,134 km (0.069 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: 308 - 11,031 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit