🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319.7

Radius: 13.7

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.39 AU - 0.63 AU

Year: 243 Days

Day: 6 Hours

Environment

Temp: -140 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 90,765,835 km

• M1: 171,589 km (0.075 R)
• M2: 1,350,420 km (0.12 R)
• M3: 2,391,771 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.9

Radius: 9.4

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.73 AU - 0.97 AU

Year: 523 Days

Day: 14.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 90,765,835 km

• M1: 116,836 km (0.057 R)
• M2: 726,447 km (0.103 R)
• M3: 1,021,454 km (0.106 R)
• M4: 1,559,707 km (0.085 R)
• M5: 2,170,216 km (0.103 R)
• M6: 2,902,498 km (0.061 R)
• M7: 3,212,465 km (0.071 R)
• M8: 3,887,600 km (0.105 R)
• M9: 4,613,000 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.3

Radius: 13.9

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.16 AU - 1.34 AU

Year: 932 Days

Day: 5.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 90,765,835 km

• M1: 172,935 km (0.103 R)
• M2: 725,699 km (0.11 R)
• M3: 1,330,972 km (0.05 R)
• M4: 1,988,904 km (0.045 R)
• M5: 2,503,969 km (0.103 R)
• M6: 2,974,754 km (0.085 R)
• M7: 3,460,797 km (0.113 R)
• M8: 4,595,198 km (0.119 R)
• M9: 5,548,136 km (0.117 R)
• M10: 6,514,838 km (0.07 R)
• M11: 7,050,847 km (0.09 R)
• M12: 8,291,761 km (0.095 R)
• M13: 8,727,091 km (0.113 R)
• M14: 9,321,593 km (0.063 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.9

Radius: 14.8

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.4 AU - 1.62 AU

Year: 1237 Days

Day: 11.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,765,835 km

• M1: 199,713 km (0.053 R)
• M2: 950,844 km (0.118 R)
• M3: 2,393,117 km (0.114 R)
• M4: 2,903,096 km (0.107 R)
• M5: 4,061,732 km (0.08 R)
• M6: 4,967,248 km (0.092 R)
• M7: 6,182,431 km (0.066 R)
• M8: 6,740,132 km (0.118 R)
• M9: 7,356,625 km (0.097 R)
• M10: 7,983,739 km (0.07 R)
• M11: 10,304,451 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 507.7

Radius: 12

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.71 AU - 2.53 AU

Year: 2058 Days

Day: 13.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 90,765,835 km

• M1: 149,299 km (0.073 R)
• M2: 663,317 km (0.115 R)
• M3: 1,151,305 km (0.112 R)
• M4: 1,900,043 km (0.115 R)
• M5: 2,951,566 km (0.111 R)
• M6: 4,056,047 km (0.106 R)
• M7: 4,857,293 km (0.093 R)
• M8: 5,241,161 km (0.066 R)
• M9: 5,622,337 km (0.095 R)
• M10: 6,852,779 km (0.089 R)
• M11: 7,282,275 km (0.102 R)
• M12: 7,844,464 km (0.036 R)
• M13: 8,435,375 km (0.109 R)
• M14: 8,992,328 km (0.112 R)
• M15: 9,840,249 km (0.079 R)
• M16: 10,669,470 km (0.116 R)
• M17: 11,732,961 km (0.115 R)
• M18: 12,665,405 km (0.12 R)
• M19: 13,231,782 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.7

Radius: 11.1

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.89 AU - 2.47 AU

Year: 2146 Days

Day: 9.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 90,765,835 km

• M1: 151,393 km (0.117 R)
• M2: 533,017 km (0.054 R)
• M3: 1,118,094 km (0.07 R)
• M4: 1,471,145 km (0.073 R)
• M5: 2,926,733 km (0.116 R)
• M6: 3,860,672 km (0.084 R)
• M7: 7,069,846 km (0.073 R)
• M8: 11,890,338 km (0.112 R)
• M9: 14,237,229 km (0.115 R)
• M10: 14,678,693 km (0.104 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.3

Radius: 5.8

Gravity: 20.22 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.98 AU - 9.48 AU

Year: 15745 Days

Day: 15.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,765,835 km

• M1: 82,877 km (0.103 R)
• M2: 299,196 km (0.108 R)
• M3: 604,974 km (0.117 R)
• M4: 879,486 km (0.109 R)
• M5: 1,431,352 km (0.097 R)
• M6: 2,703,832 km (0.094 R)
• M7: 3,164,444 km (0.051 R)
• M8: 3,427,138 km (0.094 R)
• M9: 5,176,535 km (0.05 R)
• M10: 5,504,603 km (0.072 R)
• M11: 6,002,764 km (0.102 R)
• M12: 7,631,735 km (0.108 R)
• M13: 8,698,667 km (0.037 R)
• M14: 9,806,440 km (0.043 R)
• M15: 12,491,572 km (0.092 R)
• M16: 25,533,664 km (0.03 R)
• M17: 32,434,015 km (0.105 R)
• M18: 36,110,981 km (0.091 R)
• M19: 42,351,756 km (0.101 R)
• M20: 50,579,040 km (0.081 R)
• M21: 52,074,271 km (0.051 R)
• M22: 58,169,187 km (0.079 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 982.7

Radius: 6

Gravity: 27.3 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.12 AU - 12.3 AU

Year: 21755 Days

Day: 15.5 Hours

Environment

Temp: -246 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 90,765,835 km

• M1: 80,484 km (0.081 R)
• M2: 800,199 km (0.072 R)
• M3: 1,960,779 km (0.12 R)
• M4: 2,963,534 km (0.025 R)
• M5: 5,130,010 km (0.11 R)
• M6: 5,792,280 km (0.073 R)
• M7: 6,603,549 km (0.111 R)
• M8: 7,959,205 km (0.059 R)
• M9: 9,671,951 km (0.1 R)
• M10: 11,685,239 km (0.055 R)
• M11: 13,197,973 km (0.105 R)
• M12: 18,890,770 km (0.086 R)
• M13: 21,067,419 km (0.09 R)
• M14: 25,211,280 km (0.107 R)
• M15: 26,624,980 km (0.057 R)
• M16: 28,716,807 km (0.086 R)
• M17: 29,097,085 km (0.107 R)
• M18: 29,352,299 km (0.052 R)
• M19: 29,738,112 km (0.025 R)
• M20: 40,836,180 km (0.094 R)
• M21: 48,629,481 km (0.117 R)
• M22: 55,378,140 km (0.094 R)
• M23: 56,759,078 km (0.055 R)
• M24: 87,540,036 km (0.052 R)
• M25: 89,681,829 km (0.082 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 462 - 18,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit