🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.56 AU - 0.6 AU

Year: 281 Days

Day: 14.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 90,519,960 km

• M1: 511,924 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.2

Radius: 8

Gravity: 11.33 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.56 AU - 0.94 AU

Year: 413 Days

Day: 6.7 Hours

Environment

Temp: -149 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,519,960 km

• M1: 99,483 km (0.055 R)
• M2: 349,760 km (0.102 R)
• M3: 753,973 km (0.11 R)
• M4: 1,201,570 km (0.071 R)
• M5: 1,466,807 km (0.109 R)
• M6: 1,748,949 km (0.113 R)
• M7: 2,042,161 km (0.106 R)
• M8: 2,728,964 km (0.102 R)
• M9: 3,114,777 km (0.089 R)
• M10: 3,647,794 km (0.063 R)
• M11: 4,103,320 km (0.117 R)
• M12: 4,366,163 km (0.102 R)
• M13: 4,640,227 km (0.109 R)
• M14: 5,384,476 km (0.117 R)
• M15: 5,836,711 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168

Radius: 11.2

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.63 AU - 0.99 AU

Year: 464 Days

Day: 7.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 44.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,519,960 km

• M1: 139,425 km (0.11 R)
• M2: 578,345 km (0.082 R)
• M3: 937,380 km (0.064 R)
• M4: 1,397,543 km (0.098 R)
• M5: 1,993,392 km (0.108 R)
• M6: 2,391,172 km (0.065 R)
• M7: 2,752,750 km (0.066 R)
• M8: 3,318,978 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834.6

Radius: 14.1

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.58 AU - 2.14 AU

Year: 1613 Days

Day: 5.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 90,519,960 km

• M1: 179,517 km (0.108 R)
• M2: 622,028 km (0.103 R)
• M3: 1,085,482 km (0.09 R)
• M4: 1,939,387 km (0.08 R)
• M5: 2,711,013 km (0.12 R)
• M6: 3,161,751 km (0.065 R)
• M7: 3,748,773 km (0.053 R)
• M8: 4,331,158 km (0.066 R)
• M9: 5,187,157 km (0.047 R)
• M10: 5,702,072 km (0.078 R)
• M11: 6,153,260 km (0.052 R)
• M12: 6,835,576 km (0.088 R)
• M13: 8,935,930 km (0.037 R)
• M14: 9,913,252 km (0.098 R)
• M15: 10,888,780 km (0.089 R)
• M16: 11,548,956 km (0.116 R)
• M17: 12,431,433 km (0.06 R)
• M18: 13,358,342 km (0.036 R)
• M19: 14,201,326 km (0.092 R)
• M20: 15,034,736 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.1

Radius: 13.3

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.37 AU - 3.87 AU

Year: 3504 Days

Day: 11.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 90,519,960 km

• M1: 165,455 km (0.031 R)
• M2: 596,297 km (0.084 R)
• M3: 1,032,973 km (0.116 R)
• M4: 1,449,903 km (0.109 R)
• M5: 1,878,949 km (0.069 R)
• M6: 2,486,317 km (0.097 R)
• M7: 3,925,747 km (0.057 R)
• M8: 4,512,620 km (0.11 R)
• M9: 5,288,285 km (0.074 R)
• M10: 6,328,888 km (0.106 R)
• M11: 6,882,250 km (0.116 R)
• M12: 8,016,202 km (0.116 R)
• M13: 8,517,953 km (0.115 R)
• M14: 9,387,865 km (0.118 R)
• M15: 12,977,765 km (0.096 R)
• M16: 15,131,825 km (0.074 R)
• M17: 16,579,334 km (0.054 R)
• M18: 17,101,281 km (0.084 R)
• M19: 18,671,011 km (0.063 R)
• M20: 19,877,518 km (0.045 R)
• M21: 21,270,872 km (0.1 R)
• M22: 21,956,779 km (0.042 R)
• M23: 22,728,255 km (0.105 R)
• M24: 23,736,245 km (0.098 R)
• M25: 24,623,810 km (0.038 R)
• M26: 25,841,387 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209.8

Radius: 13.7

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 4.5 AU - 6.82 AU

Year: 8562 Days

Day: 12.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 90,519,960 km

• M1: 170,392 km (0.099 R)
• M2: 1,041,500 km (0.11 R)
• M3: 1,722,171 km (0.094 R)
• M4: 2,739,735 km (0.101 R)
• M5: 5,821,152 km (0.056 R)
• M6: 6,874,321 km (0.12 R)
• M7: 10,147,074 km (0.059 R)
• M8: 13,444,061 km (0.101 R)
• M9: 13,967,355 km (0.081 R)
• M10: 17,520,903 km (0.116 R)
• M11: 23,391,123 km (0.098 R)
• M12: 27,179,689 km (0.11 R)
• M13: 28,272,202 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 917.8

Radius: 6.5

Gravity: 21.72 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 7.21 AU - 9.45 AU

Year: 15286 Days

Day: 20.3 Hours

Environment

Temp: -225 °C

Axial Tilt: 159.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 90,519,960 km

• M1: 104,868 km (0.112 R)
• M2: 367,712 km (0.112 R)
• M3: 786,735 km (0.119 R)
• M4: 1,162,076 km (0.112 R)
• M5: 1,702,274 km (0.066 R)
• M6: 2,290,942 km (0.12 R)
• M7: 2,507,410 km (0.075 R)
• M8: 3,954,620 km (0.072 R)
• M9: 5,649,564 km (0.091 R)
• M10: 7,077,774 km (0.05 R)
• M11: 10,806,202 km (0.061 R)
• M12: 12,249,822 km (0.082 R)
• M13: 16,612,544 km (0.083 R)
• M14: 17,594,355 km (0.114 R)
• M15: 19,763,076 km (0.051 R)
• M16: 21,717,572 km (0.09 R)
• M17: 22,890,419 km (0.103 R)
• M18: 25,575,402 km (0.105 R)
• M19: 27,104,591 km (0.105 R)
• M20: 34,613,806 km (0.062 R)
• M21: 47,325,286 km (0.041 R)
• M22: 56,783,013 km (0.119 R)
• M23: 65,600,013 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.8

Radius: 7.8

Gravity: 16.2 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 10.09 AU - 10.91 AU

Year: 21633 Days

Day: 22.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 90,519,960 km

• M1: 96,939 km (0.11 R)
• M2: 402,119 km (0.049 R)
• M3: 820,395 km (0.066 R)
• M4: 2,168,272 km (0.099 R)
• M5: 3,229,818 km (0.105 R)
• M6: 4,142,365 km (0.078 R)
• M7: 5,019,607 km (0.073 R)
• M8: 5,884,133 km (0.062 R)
• M9: 6,420,741 km (0.083 R)
• M10: 6,989,512 km (0.082 R)
• M11: 8,118,976 km (0.054 R)
• M12: 8,502,694 km (0.118 R)
• M13: 9,129,958 km (0.072 R)
• M14: 12,592,401 km (0.051 R)
• M15: 12,884,715 km (0.063 R)
• M16: 13,256,466 km (0.089 R)
• M17: 13,788,735 km (0.087 R)
• M18: 16,061,875 km (0.044 R)
• M19: 16,842,775 km (0.057 R)
• M20: 18,668,019 km (0.064 R)
• M21: 21,130,101 km (0.117 R)
• M22: 24,587,158 km (0.099 R)
• M23: 29,672,738 km (0.086 R)
• M24: 30,321,394 km (0.078 R)
• M25: 30,846,931 km (0.07 R)
• M26: 32,872,337 km (0.09 R)
• M27: 41,700,556 km (0.096 R)
• M28: 47,091,465 km (0.078 R)
• M29: 53,309,201 km (0.104 R)
• M30: 54,267,376 km (0.115 R)
• M31: 62,561,830 km (0.1 R)
• M32: 62,986,687 km (0.055 R)
• M33: 64,922,783 km (0.051 R)
• M34: 68,012,727 km (0.078 R)
• M35: 74,246,171 km (0.093 R)
• M36: 75,681,264 km (0.114 R)
• M37: 77,623,343 km (0.087 R)
• M38: 81,354,015 km (0.059 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 19,790 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit