🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 990.5

Radius: 8.8

Gravity: 12.79 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 0.94 AU - 1 AU

Year: 648 Days

Day: 14.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 80,571,874 km

• M1: 156,479 km (0.106 R)
• M2: 454,778 km (0.072 R)
• M3: 758,312 km (0.101 R)
• M4: 1,052,421 km (0.114 R)
• M5: 1,546,094 km (0.118 R)
• M6: 1,900,940 km (0.086 R)
• M7: 2,694,856 km (0.085 R)
• M8: 2,970,715 km (0.12 R)
• M9: 3,524,077 km (0.119 R)
• M10: 3,914,827 km (0.118 R)
• M11: 4,698,271 km (0.094 R)
• M12: 5,487,549 km (0.105 R)
• M13: 5,874,260 km (0.06 R)
• M14: 6,637,807 km (0.115 R)
• M15: 7,010,156 km (0.113 R)
• M16: 7,373,230 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.3

Radius: 8.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.16 AU - 1.2 AU

Year: 869 Days

Day: 5.4 Hours

Environment

Temp: -182 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,571,874 km

• M1: 103,372 km (0.062 R)
• M2: 365,767 km (0.06 R)
• M3: 757,115 km (0.111 R)
• M4: 1,126,023 km (0.116 R)
• M5: 1,490,444 km (0.093 R)
• M6: 2,814,983 km (0.04 R)
• M7: 3,165,491 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.1

Radius: 14.9

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.89 AU - 1.49 AU

Year: 880 Days

Day: 11.9 Hours

Environment

Temp: -184 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,571,874 km

• M1: 185,352 km (0.103 R)
• M2: 670,797 km (0.069 R)
• M3: 1,146,967 km (0.116 R)
• M4: 1,734,587 km (0.086 R)
• M5: 2,952,164 km (0.096 R)
• M6: 3,842,870 km (0.117 R)
• M7: 6,037,022 km (0.096 R)
• M8: 6,772,894 km (0.061 R)
• M9: 7,544,520 km (0.105 R)
• M10: 8,577,942 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.5

Radius: 14.1

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.01 AU - 1.65 AU

Year: 1040 Days

Day: 11.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 80,571,874 km

• M1: 176,077 km (0.108 R)
• M2: 948,600 km (0.08 R)
• M3: 1,607,728 km (0.116 R)
• M4: 2,193,554 km (0.101 R)
• M5: 2,706,375 km (0.053 R)
• M6: 4,749,882 km (0.098 R)
• M7: 6,610,880 km (0.113 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 320.3

Radius: 12.5

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.3 AU - 1.44 AU

Year: 1088 Days

Day: 10.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,571,874 km

• M1: 155,881 km (0.048 R)
• M2: 672,143 km (0.049 R)
• M3: 1,272,330 km (0.092 R)
• M4: 1,712,746 km (0.078 R)
• M5: 2,157,949 km (0.102 R)
• M6: 3,779,590 km (0.089 R)
• M7: 5,070,021 km (0.063 R)
• M8: 5,826,239 km (0.094 R)
• M9: 7,200,295 km (0.113 R)
• M10: 7,844,613 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 395.9

Radius: 13.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.34 AU - 1.78 AU

Year: 1322 Days

Day: 12.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,571,874 km

• M1: 169,195 km (0.086 R)
• M2: 598,541 km (0.063 R)
• M3: 1,141,731 km (0.098 R)
• M4: 1,635,254 km (0.06 R)
• M5: 2,177,995 km (0.07 R)
• M6: 2,645,040 km (0.06 R)
• M7: 3,415,768 km (0.083 R)
• M8: 4,986,247 km (0.084 R)
• M9: 7,647,144 km (0.076 R)
• M10: 8,233,867 km (0.111 R)
• M11: 9,671,951 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815

Radius: 14.5

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.21 AU - 1.95 AU

Year: 1347 Days

Day: 14.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,571,874 km

• M1: 180,265 km (0.108 R)
• M2: 636,539 km (0.104 R)
• M3: 1,324,988 km (0.057 R)
• M4: 2,418,998 km (0.051 R)
• M5: 3,154,122 km (0.043 R)
• M6: 4,754,669 km (0.051 R)
• M7: 5,302,197 km (0.078 R)
• M8: 6,332,777 km (0.114 R)
• M9: 7,708,629 km (0.092 R)
• M10: 8,180,760 km (0.085 R)
• M11: 8,701,809 km (0.065 R)
• M12: 10,069,433 km (0.06 R)
• M13: 12,610,353 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 297.4

Radius: 14.1

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.78 AU - 3.5 AU

Year: 3774 Days

Day: 12.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 80,571,874 km

• M1: 175,329 km (0.066 R)
• M2: 667,356 km (0.111 R)
• M3: 1,255,425 km (0.097 R)
• M4: 1,721,124 km (0.119 R)
• M5: 2,213,450 km (0.085 R)
• M6: 2,861,807 km (0.047 R)
• M7: 3,526,471 km (0.066 R)
• M8: 4,171,088 km (0.06 R)
• M9: 4,650,848 km (0.074 R)
• M10: 5,648,217 km (0.093 R)
• M11: 6,264,261 km (0.119 R)
• M12: 7,243,080 km (0.056 R)
• M13: 9,224,803 km (0.055 R)
• M14: 11,186,929 km (0.11 R)
• M15: 11,667,288 km (0.108 R)
• M16: 12,119,821 km (0.077 R)
• M17: 13,236,270 km (0.099 R)
• M18: 15,922,599 km (0.1 R)
• M19: 17,688,153 km (0.027 R)
• M20: 18,341,297 km (0.108 R)

Asteroid Belt

Center: 6.12 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 9.09 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 941.6

Radius: 6.1

Gravity: 25.31 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 8.2 AU - 9.98 AU

Year: 18588 Days

Day: 15.9 Hours

Environment

Temp: -243 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 80,571,874 km

• M1: 75,846 km (0.094 R)
• M2: 282,890 km (0.09 R)
• M3: 700,716 km (0.103 R)
• M4: 944,711 km (0.026 R)
• M5: 1,147,416 km (0.117 R)
• M6: 1,824,047 km (0.103 R)
• M7: 2,271,045 km (0.082 R)
• M8: 2,994,949 km (0.112 R)
• M9: 5,150,655 km (0.053 R)
• M10: 5,502,808 km (0.066 R)
• M11: 6,082,350 km (0.086 R)
• M12: 6,565,551 km (0.052 R)
• M13: 8,169,241 km (0.074 R)
• M14: 12,059,832 km (0.108 R)
• M15: 13,178,376 km (0.056 R)
• M16: 13,762,705 km (0.103 R)
• M17: 14,288,093 km (0.089 R)
• M18: 16,357,181 km (0.072 R)
• M19: 19,633,973 km (0.095 R)
• M20: 22,696,091 km (0.096 R)
• M21: 28,042,570 km (0.063 R)
• M22: 30,120,783 km (0.056 R)
• M23: 34,444,311 km (0.097 R)
• M24: 38,570,071 km (0.069 R)
• M25: 39,613,067 km (0.105 R)
• M26: 49,336,181 km (0.077 R)
• M27: 56,823,106 km (0.106 R)
• M28: 64,406,521 km (0.12 R)
• M29: 65,662,395 km (0.113 R)
• M30: 68,656,148 km (0.114 R)
• M31: 73,542,463 km (0.112 R)
• M32: 73,997,839 km (0.209 R)
• M33: 74,226,125 km (0.226 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 11,369 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit