🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 289.5

Radius: 9.5

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.41 AU - 0.65 AU

Year: 257 Days

Day: 5.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 49,008,586 km

• M1: 118,182 km (0.104 R)
• M2: 451,786 km (0.067 R)
• M3: 773,122 km (0.106 R)
• M4: 1,175,241 km (0.114 R)
• M5: 1,605,634 km (0.043 R)
• M6: 1,944,922 km (0.07 R)
• M7: 2,288,249 km (0.107 R)
• M8: 2,600,011 km (0.117 R)
• M9: 2,905,789 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506

Radius: 14.1

Gravity: 2.55 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.57 AU - 0.65 AU

Year: 318 Days

Day: 9.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,008,586 km

• M1: 175,329 km (0.089 R)
• M2: 654,191 km (0.1 R)
• M3: 1,326,185 km (0.066 R)
• M4: 1,977,684 km (0.099 R)
• M5: 2,466,719 km (0.084 R)
• M6: 3,125,848 km (0.104 R)
• M7: 4,113,193 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.1

Radius: 13

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.72 AU - 1.72 AU

Year: 1504 Days

Day: 6.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,008,586 km

• M1: 161,865 km (0.105 R)
• M2: 680,521 km (0.035 R)
• M3: 1,433,148 km (0.102 R)
• M4: 2,401,345 km (0.072 R)
• M5: 2,933,913 km (0.087 R)
• M6: 3,456,160 km (0.114 R)
• M7: 4,253,965 km (0.081 R)
• M8: 6,235,239 km (0.051 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 39.8

Radius: 12.1

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.76 AU - 1.8 AU

Year: 1584 Days

Day: 10.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 49,008,586 km

• M1: 151,842 km (0.077 R)
• M2: 591,360 km (0.096 R)
• M3: 1,029,533 km (0.1 R)
• M4: 1,601,595 km (0.098 R)
• M5: 2,001,919 km (0.102 R)
• M6: 2,433,509 km (0.049 R)
• M7: 2,855,823 km (0.075 R)
• M8: 3,259,887 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410

Radius: 10.6

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.95 AU - 2.23 AU

Year: 2015 Days

Day: 9.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,008,586 km

• M1: 131,945 km (0.055 R)
• M2: 463,753 km (0.111 R)
• M3: 979,268 km (0.059 R)
• M4: 1,335,460 km (0.071 R)
• M5: 1,840,503 km (0.104 R)
• M6: 2,190,711 km (0.103 R)
• M7: 2,814,983 km (0.109 R)
• M8: 3,177,010 km (0.056 R)
• M9: 3,636,275 km (0.043 R)
• M10: 4,067,417 km (0.115 R)
• M11: 5,012,277 km (0.06 R)
• M12: 5,459,425 km (0.056 R)
• M13: 6,707,969 km (0.105 R)
• M14: 7,067,602 km (0.05 R)
• M15: 8,166,548 km (0.101 R)
• M16: 8,547,274 km (0.076 R)
• M17: 9,032,121 km (0.038 R)
• M18: 11,228,816 km (0.094 R)
• M19: 12,760,399 km (0.11 R)
• M20: 13,434,637 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.7

Radius: 8.2

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.04 AU - 2.94 AU

Year: 2620 Days

Day: 5.6 Hours

Environment

Temp: -201 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 49,008,586 km

• M1: 102,026 km (0.073 R)
• M2: 594,502 km (0.085 R)
• M3: 2,506,812 km (0.041 R)
• M4: 3,094,282 km (0.087 R)
• M5: 4,105,115 km (0.101 R)
• M6: 4,365,864 km (0.06 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.5

Radius: 13.3

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.83 AU - 2.93 AU

Year: 3259 Days

Day: 12.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 49,008,586 km

• M1: 167,849 km (0.057 R)
• M2: 723,904 km (0.052 R)
• M3: 1,143,526 km (0.03 R)
• M4: 1,560,605 km (0.111 R)
• M5: 2,308,744 km (0.06 R)
• M6: 3,429,681 km (0.062 R)
• M7: 4,010,121 km (0.101 R)
• M8: 4,816,004 km (0.081 R)
• M9: 5,779,714 km (0.092 R)
• M10: 6,519,475 km (0.086 R)
• M11: 8,121,968 km (0.04 R)
• M12: 8,838,691 km (0.07 R)
• M13: 9,746,451 km (0.111 R)
• M14: 10,516,730 km (0.099 R)
• M15: 11,833,192 km (0.109 R)
• M16: 12,354,241 km (0.078 R)
• M17: 13,256,765 km (0.119 R)
• M18: 16,282,232 km (0.077 R)
• M19: 18,849,033 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.4

Radius: 11.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 3.41 AU - 3.97 AU

Year: 4727 Days

Day: 10 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 49,008,586 km

• M1: 138,079 km (0.089 R)
• M2: 847,622 km (0.081 R)
• M3: 2,282,265 km (0.105 R)
• M4: 3,839,579 km (0.054 R)
• M5: 4,599,985 km (0.09 R)
• M6: 7,635,326 km (0.073 R)
• M7: 7,992,266 km (0.094 R)
• M8: 9,773,678 km (0.112 R)
• M9: 12,365,162 km (0.12 R)
• M10: 14,061,153 km (0.112 R)
• M11: 14,918,947 km (0.086 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.7

Radius: 13.8

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 3.47 AU - 5.45 AU

Year: 6281 Days

Day: 6.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,008,586 km

• M1: 172,038 km (0.053 R)
• M2: 1,033,272 km (0.073 R)
• M3: 1,821,354 km (0.117 R)
• M4: 2,854,776 km (0.052 R)
• M5: 3,378,369 km (0.105 R)
• M6: 4,802,690 km (0.103 R)
• M7: 6,088,035 km (0.092 R)
• M8: 9,707,555 km (0.087 R)
• M9: 11,994,757 km (0.107 R)
• M10: 14,398,197 km (0.08 R)
• M11: 19,862,408 km (0.094 R)
• M12: 22,750,246 km (0.112 R)
• M13: 27,849,588 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.9

Radius: 4.1

Gravity: 40.51 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 5 AU - 7.46 AU

Year: 10370 Days

Day: 20.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,008,586 km

• M1: 51,162 km (0.06 R)
• M2: 188,194 km (0.108 R)
• M3: 504,444 km (0.12 R)
• M4: 719,416 km (0.078 R)
• M5: 1,014,573 km (0.088 R)
• M6: 1,595,760 km (0.089 R)
• M7: 4,572,010 km (0.07 R)
• M8: 4,723,702 km (0.086 R)
• M9: 7,014,495 km (0.043 R)
• M10: 10,467,961 km (0.1 R)
• M11: 11,108,839 km (0.119 R)
• M12: 11,606,401 km (0.096 R)
• M13: 14,578,761 km (0.057 R)
• M14: 14,775,632 km (0.079 R)
• M15: 29,694,579 km (0.117 R)
• M16: 29,905,362 km (0.082 R)
• M17: 32,624,304 km (0.065 R)
• M18: 33,871,202 km (0.09 R)
• M19: 35,622,245 km (0.084 R)
• M20: 47,410,707 km (0.076 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 217 - 11,871 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit