🌌 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: 703.7

Radius: 13.7

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.47 AU - 0.55 AU

Year: 251 Days

Day: 14.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,106,962 km

• M1: 170,392 km (0.067 R)
• M2: 632,949 km (0.109 R)
• M3: 1,194,389 km (0.083 R)
• M4: 1,829,432 km (0.109 R)
• M5: 2,892,026 km (0.116 R)
• M6: 3,413,375 km (0.091 R)
• M7: 3,962,548 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 248.4

Radius: 8

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 0.63 AU - 0.83 AU

Year: 431 Days

Day: 13.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,106,962 km

• M1: 168,298 km (0.064 R)
• M2: 458,218 km (0.084 R)
• M3: 730,786 km (0.116 R)
• M4: 1,246,150 km (0.072 R)
• M5: 1,535,921 km (0.098 R)
• M6: 2,511,748 km (0.114 R)
• M7: 2,883,499 km (0.089 R)
• M8: 3,748,923 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125.2

Radius: 14.6

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.75 AU - 0.91 AU

Year: 522 Days

Day: 9.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,106,962 km

• M1: 181,612 km (0.087 R)
• M2: 793,318 km (0.096 R)
• M3: 1,481,767 km (0.066 R)
• M4: 2,680,644 km (0.058 R)
• M5: 3,176,711 km (0.103 R)
• M6: 3,777,496 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.1

Radius: 14.9

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.65 AU - 1.01 AU

Year: 522 Days

Day: 13.3 Hours

Environment

Temp: -170 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,106,962 km

• M1: 185,352 km (0.044 R)
• M2: 768,484 km (0.067 R)
• M3: 1,259,315 km (0.078 R)
• M4: 2,350,781 km (0.085 R)
• M5: 3,198,103 km (0.047 R)
• M6: 3,769,268 km (0.061 R)
• M7: 4,305,277 km (0.054 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.6

Radius: 12.6

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.1 AU - 1.26 AU

Year: 885 Days

Day: 9.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 47,106,962 km

• M1: 160,070 km (0.102 R)
• M2: 576,550 km (0.1 R)
• M3: 986,598 km (0.114 R)
• M4: 1,475,783 km (0.097 R)
• M5: 1,999,824 km (0.104 R)
• M6: 2,409,723 km (0.12 R)
• M7: 3,158,011 km (0.114 R)
• M8: 3,689,831 km (0.082 R)
• M9: 4,446,797 km (0.111 R)
• M10: 5,323,889 km (0.045 R)
• M11: 6,529,349 km (0.055 R)
• M12: 7,686,787 km (0.09 R)
• M13: 9,031,074 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 785.5

Radius: 11.7

Gravity: 5.74 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.16 AU - 1.54 AU

Year: 1083 Days

Day: 7.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,106,962 km

• M1: 145,559 km (0.106 R)
• M2: 564,732 km (0.093 R)
• M3: 1,021,454 km (0.091 R)
• M4: 1,501,963 km (0.108 R)
• M5: 1,887,925 km (0.08 R)
• M6: 2,363,646 km (0.107 R)
• M7: 2,814,086 km (0.101 R)
• M8: 3,278,437 km (0.054 R)
• M9: 4,138,625 km (0.106 R)
• M10: 5,104,130 km (0.036 R)
• M11: 6,258,876 km (0.113 R)
• M12: 7,839,228 km (0.094 R)
• M13: 8,375,237 km (0.043 R)
• M14: 8,964,204 km (0.111 R)
• M15: 9,372,007 km (0.068 R)
• M16: 10,193,749 km (0.117 R)
• M17: 10,996,790 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.6

Radius: 11.4

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.64 AU - 2.56 AU

Year: 2101 Days

Day: 13.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,106,962 km

• M1: 141,819 km (0.107 R)
• M2: 733,329 km (0.115 R)
• M3: 1,714,541 km (0.083 R)
• M4: 2,948,873 km (0.12 R)
• M5: 3,909,292 km (0.114 R)
• M6: 4,908,456 km (0.083 R)
• M7: 8,519,748 km (0.071 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 884.1

Radius: 9.1

Gravity: 10.68 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.09 AU - 2.87 AU

Year: 2696 Days

Day: 11 Hours

Environment

Temp: -209 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,106,962 km

• M1: 113,096 km (0.052 R)
• M2: 409,001 km (0.119 R)
• M3: 721,810 km (0.041 R)
• M4: 1,018,462 km (0.112 R)
• M5: 1,320,800 km (0.074 R)
• M6: 2,100,653 km (0.111 R)
• M7: 2,584,902 km (0.1 R)
• M8: 3,639,716 km (0.097 R)
• M9: 5,152,749 km (0.098 R)
• M10: 6,035,676 km (0.091 R)
• M11: 6,895,415 km (0.093 R)
• M12: 7,999,297 km (0.084 R)
• M13: 8,963,904 km (0.12 R)
• M14: 10,042,804 km (0.116 R)
• M15: 12,058,785 km (0.095 R)
• M16: 12,501,146 km (0.117 R)
• M17: 14,727,013 km (0.104 R)
• M18: 15,130,628 km (0.107 R)
• M19: 16,118,722 km (0.048 R)
• M20: 17,879,339 km (0.087 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.7

Radius: 13.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.64 AU - 3.68 AU

Year: 4833 Days

Day: 11.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 47,106,962 km

• M1: 172,935 km (0.074 R)
• M2: 696,228 km (0.095 R)
• M3: 1,502,711 km (0.098 R)
• M4: 2,782,072 km (0.117 R)
• M5: 5,521,657 km (0.09 R)
• M6: 6,024,456 km (0.078 R)
• M7: 6,557,922 km (0.092 R)
• M8: 7,719,849 km (0.039 R)
• M9: 8,487,435 km (0.091 R)
• M10: 10,175,049 km (0.092 R)
• M11: 11,139,805 km (0.098 R)
• M12: 12,790,917 km (0.119 R)
• M13: 14,401,937 km (0.084 R)
• M14: 17,177,576 km (0.116 R)
• M15: 18,196,337 km (0.102 R)
• M16: 20,230,419 km (0.12 R)
• M17: 21,046,924 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296.6

Radius: 5.3

Gravity: 10.56 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 7.03 AU - 8.41 AU

Year: 14806 Days

Day: 22.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,106,962 km

• M1: 65,973 km (0.083 R)
• M2: 251,474 km (0.103 R)
• M3: 546,631 km (0.109 R)
• M4: 1,522,308 km (0.1 R)
• M5: 2,242,472 km (0.103 R)
• M6: 3,054,041 km (0.105 R)
• M7: 3,575,988 km (0.06 R)
• M8: 3,806,069 km (0.104 R)
• M9: 4,073,101 km (0.092 R)
• M10: 8,550,266 km (0.112 R)
• M11: 10,690,862 km (0.089 R)
• M12: 15,857,673 km (0.117 R)
• M13: 16,339,678 km (0.062 R)
• M14: 18,592,173 km (0.078 R)
• M15: 26,769,342 km (0.042 R)
• M16: 27,060,759 km (0.086 R)
• M17: 27,847,943 km (0.051 R)
• M18: 29,986,594 km (0.096 R)
• M19: 31,579,811 km (0.048 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 319 - 13,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit