🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 745.6

Radius: 12.9

Gravity: 4.48 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.92 AU - 1.12 AU

Year: 676 Days

Day: 12.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 32,600,967 km

• M1: 160,519 km (0.092 R)
• M2: 977,323 km (0.085 R)
• M3: 1,841,251 km (0.116 R)
• M4: 2,682,140 km (0.107 R)
• M5: 3,436,712 km (0.075 R)
• M6: 3,922,606 km (0.084 R)
• M7: 4,913,991 km (0.12 R)
• M8: 5,588,677 km (0.103 R)
• M9: 7,278,236 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.4

Radius: 13.5

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.92 AU - 2.02 AU

Year: 1814 Days

Day: 9.6 Hours

Environment

Temp: -180 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,600,967 km

• M1: 167,849 km (0.036 R)
• M2: 725,101 km (0.097 R)
• M3: 1,241,962 km (0.084 R)
• M4: 1,680,433 km (0.037 R)
• M5: 2,458,192 km (0.092 R)
• M6: 3,783,629 km (0.092 R)
• M7: 5,035,764 km (0.062 R)
• M8: 5,470,345 km (0.119 R)
• M9: 5,955,042 km (0.085 R)
• M10: 7,702,794 km (0.071 R)
• M11: 8,825,078 km (0.071 R)
• M12: 10,450,907 km (0.105 R)
• M13: 12,227,831 km (0.071 R)
• M14: 12,722,850 km (0.085 R)
• M15: 13,188,249 km (0.102 R)
• M16: 14,424,675 km (0.057 R)
• M17: 15,118,211 km (0.112 R)
• M18: 16,126,202 km (0.071 R)
• M19: 16,924,007 km (0.08 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.4

Radius: 11.3

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.75 AU - 2.19 AU

Year: 1814 Days

Day: 14.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 32,600,967 km

• M1: 140,472 km (0.079 R)
• M2: 549,623 km (0.067 R)
• M3: 1,563,148 km (0.101 R)
• M4: 1,929,962 km (0.091 R)
• M5: 2,900,703 km (0.114 R)
• M6: 3,735,160 km (0.112 R)
• M7: 4,580,388 km (0.06 R)
• M8: 5,641,037 km (0.062 R)
• M9: 6,938,349 km (0.101 R)
• M10: 7,858,975 km (0.057 R)
• M11: 8,609,357 km (0.103 R)
• M12: 9,049,923 km (0.116 R)
• M13: 9,572,020 km (0.085 R)
• M14: 11,979,648 km (0.078 R)
• M15: 12,609,605 km (0.103 R)
• M16: 14,456,091 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.6

Radius: 11.5

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.64 AU - 2.52 AU

Year: 1968 Days

Day: 15 Hours

Environment

Temp: -184 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,600,967 km

• M1: 143,016 km (0.083 R)
• M2: 561,590 km (0.079 R)
• M3: 1,258,118 km (0.102 R)
• M4: 2,346,443 km (0.116 R)
• M5: 2,731,059 km (0.103 R)
• M6: 4,113,493 km (0.042 R)
• M7: 4,604,174 km (0.089 R)
• M8: 5,474,684 km (0.038 R)
• M9: 6,113,915 km (0.119 R)
• M10: 7,116,221 km (0.083 R)
• M11: 8,948,945 km (0.085 R)
• M12: 9,415,391 km (0.038 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.8

Radius: 10.5

Gravity: 8.92 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.05 AU - 2.96 AU

Year: 2593 Days

Day: 7.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,600,967 km

• M1: 130,599 km (0.078 R)
• M2: 647,310 km (0.092 R)
• M3: 1,358,797 km (0.115 R)
• M4: 2,149,273 km (0.116 R)
• M5: 3,116,572 km (0.085 R)
• M6: 3,611,293 km (0.11 R)
• M7: 4,351,952 km (0.059 R)
• M8: 4,782,046 km (0.079 R)
• M9: 6,588,440 km (0.037 R)
• M10: 7,157,061 km (0.085 R)
• M11: 7,725,683 km (0.095 R)
• M12: 10,705,373 km (0.076 R)
• M13: 12,361,122 km (0.119 R)
• M14: 13,273,520 km (0.07 R)
• M15: 14,476,436 km (0.068 R)
• M16: 14,926,726 km (0.086 R)
• M17: 16,713,074 km (0.088 R)
• M18: 17,657,785 km (0.054 R)
• M19: 18,114,507 km (0.097 R)
• M20: 19,471,659 km (0.065 R)
• M21: 20,330,201 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.8

Radius: 9

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.63 AU - 3.95 AU

Year: 4840 Days

Day: 11 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,600,967 km

• M1: 117,434 km (0.116 R)
• M2: 481,705 km (0.108 R)
• M3: 1,050,327 km (0.035 R)
• M4: 1,404,126 km (0.042 R)
• M5: 2,108,582 km (0.118 R)
• M6: 2,523,716 km (0.097 R)
• M7: 3,434,318 km (0.058 R)
• M8: 5,590,622 km (0.114 R)
• M9: 6,104,790 km (0.101 R)
• M10: 6,454,101 km (0.031 R)
• M11: 6,816,876 km (0.082 R)
• M12: 7,123,551 km (0.118 R)
• M13: 7,949,780 km (0.062 R)
• M14: 8,251,669 km (0.117 R)
• M15: 9,162,720 km (0.11 R)
• M16: 10,095,313 km (0.113 R)
• M17: 17,565,782 km (0.071 R)
• M18: 18,339,502 km (0.057 R)
• M19: 20,797,096 km (0.05 R)
• M20: 26,023,447 km (0.111 R)
• M21: 30,199,023 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 668

Radius: 7

Gravity: 13.63 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.21 AU - 9.49 AU

Year: 15828 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,600,967 km

• M1: 89,160 km (0.039 R)
• M2: 398,230 km (0.11 R)
• M3: 821,442 km (0.1 R)
• M4: 1,328,130 km (0.101 R)
• M5: 2,140,746 km (0.048 R)
• M6: 2,554,533 km (0.12 R)
• M7: 2,780,875 km (0.081 R)
• M8: 3,459,750 km (0.118 R)
• M9: 3,709,130 km (0.091 R)
• M10: 4,121,122 km (0.116 R)
• M11: 7,306,659 km (0.1 R)
• M12: 10,638,952 km (0.106 R)
• M13: 12,796,751 km (0.047 R)
• M14: 16,054,993 km (0.092 R)
• M15: 16,594,892 km (0.112 R)
• M16: 20,269,763 km (0.086 R)
• M17: 23,455,899 km (0.099 R)
• M18: 32,972,867 km (0.107 R)
• M19: 37,084,564 km (0.111 R)
• M20: 42,395,588 km (0.058 R)
• M21: 44,927,532 km (0.099 R)
• M22: 54,495,213 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 40.2

Radius: 4

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 10.66 AU - 10.86 AU

Year: 23154 Days

Day: 17.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 32,600,967 km

• M1: 55,501 km (0.111 R)
• M2: 410,796 km (0.108 R)
• M3: 779,704 km (0.056 R)
• M4: 1,230,143 km (0.098 R)
• M5: 1,921,884 km (0.079 R)
• M6: 4,266,830 km (0.111 R)
• M7: 6,109,727 km (0.108 R)
• M8: 6,975,898 km (0.104 R)
• M9: 8,189,137 km (0.066 R)
• M10: 9,281,052 km (0.053 R)
• M11: 11,798,934 km (0.094 R)
• M12: 13,892,406 km (0.108 R)
• M13: 18,796,972 km (0.102 R)
• M14: 21,558,848 km (0.095 R)
• M15: 23,152,365 km (0.119 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 312 - 12,522 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit