🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.8

Radius: 9.4

Gravity: 8.64 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.43 AU - 0.61 AU

Year: 250 Days

Day: 10.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,560,732 km

• M1: 116,836 km (0.055 R)
• M2: 490,980 km (0.06 R)
• M3: 835,055 km (0.103 R)
• M4: 1,226,104 km (0.112 R)
• M5: 1,608,776 km (0.116 R)
• M6: 2,026,004 km (0.056 R)
• M7: 2,338,065 km (0.12 R)
• M8: 3,506,424 km (0.103 R)
• M9: 3,854,389 km (0.12 R)
• M10: 4,237,958 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653

Radius: 9.4

Gravity: 7.39 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.55 AU - 0.61 AU

Year: 295 Days

Day: 13.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,560,732 km

• M1: 117,434 km (0.088 R)
• M2: 450,888 km (0.12 R)
• M3: 765,642 km (0.075 R)
• M4: 1,186,910 km (0.098 R)
• M5: 1,646,025 km (0.087 R)
• M6: 1,951,055 km (0.103 R)
• M7: 2,533,290 km (0.109 R)
• M8: 3,619,371 km (0.07 R)
• M9: 4,216,416 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.9

Radius: 8.4

Gravity: 13.62 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.64 AU - 1 AU

Year: 495 Days

Day: 12.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,560,732 km

• M1: 104,569 km (0.103 R)
• M2: 465,698 km (0.092 R)
• M3: 789,578 km (0.06 R)
• M4: 1,227,301 km (0.11 R)
• M5: 1,510,191 km (0.11 R)
• M6: 1,921,734 km (0.111 R)
• M7: 2,656,709 km (0.119 R)
• M8: 3,100,865 km (0.098 R)
• M9: 3,436,712 km (0.109 R)
• M10: 3,936,369 km (0.103 R)
• M11: 4,331,008 km (0.117 R)
• M12: 4,608,512 km (0.108 R)
• M13: 5,233,981 km (0.108 R)
• M14: 5,693,545 km (0.042 R)
• M15: 6,354,469 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.8

Radius: 10.5

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.81 AU - 0.99 AU

Year: 569 Days

Day: 7.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,560,732 km

• M1: 130,599 km (0.114 R)
• M2: 512,223 km (0.104 R)
• M3: 921,074 km (0.119 R)
• M4: 1,282,353 km (0.06 R)
• M5: 1,658,741 km (0.088 R)
• M6: 2,405,833 km (0.104 R)
• M7: 2,891,876 km (0.087 R)
• M8: 3,482,638 km (0.074 R)
• M9: 4,320,686 km (0.12 R)
• M10: 5,059,550 km (0.109 R)
• M11: 6,292,984 km (0.115 R)
• M12: 6,745,667 km (0.065 R)
• M13: 7,286,463 km (0.059 R)
• M14: 7,879,320 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.2

Radius: 14.5

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.68 AU - 2.68 AU

Year: 2146 Days

Day: 12.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,560,732 km

• M1: 180,265 km (0.07 R)
• M2: 720,314 km (0.087 R)
• M3: 1,237,025 km (0.083 R)
• M4: 1,780,963 km (0.035 R)
• M5: 3,234,755 km (0.088 R)
• M6: 4,313,056 km (0.097 R)
• M7: 5,472,889 km (0.075 R)
• M8: 6,074,272 km (0.119 R)
• M9: 7,440,250 km (0.071 R)
• M10: 8,148,297 km (0.12 R)
• M11: 8,667,102 km (0.101 R)
• M12: 9,139,084 km (0.11 R)
• M13: 11,480,290 km (0.059 R)
• M14: 13,028,628 km (0.11 R)
• M15: 13,649,459 km (0.116 R)
• M16: 14,243,662 km (0.117 R)
• M17: 16,434,822 km (0.053 R)
• M18: 17,424,412 km (0.12 R)
• M19: 18,124,231 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.5

Radius: 10.3

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.68 AU - 3.74 AU

Year: 3835 Days

Day: 8.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 42,560,732 km

• M1: 128,205 km (0.114 R)
• M2: 468,690 km (0.1 R)
• M3: 1,338,153 km (0.094 R)
• M4: 1,887,028 km (0.068 R)
• M5: 2,483,624 km (0.106 R)
• M6: 2,942,141 km (0.119 R)
• M7: 3,537,840 km (0.077 R)
• M8: 4,766,188 km (0.086 R)
• M9: 5,395,546 km (0.093 R)
• M10: 5,816,365 km (0.05 R)
• M11: 6,948,971 km (0.109 R)
• M12: 8,113,889 km (0.099 R)
• M13: 8,480,254 km (0.084 R)
• M14: 9,364,677 km (0.1 R)
• M15: 10,015,577 km (0.098 R)
• M16: 17,357,841 km (0.077 R)
• M17: 18,908,273 km (0.105 R)
• M18: 19,293,637 km (0.099 R)
• M19: 19,749,911 km (0.087 R)
• M20: 20,213,515 km (0.046 R)
• M21: 24,413,325 km (0.059 R)
• M22: 26,436,038 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.3

Radius: 13.5

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.99 AU - 5.91 AU

Year: 8484 Days

Day: 7.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,560,732 km

• M1: 176,825 km (0.07 R)
• M2: 673,340 km (0.12 R)
• M3: 1,191,697 km (0.09 R)
• M4: 2,613,624 km (0.065 R)
• M5: 6,249,152 km (0.076 R)
• M6: 8,400,968 km (0.084 R)
• M7: 9,927,165 km (0.111 R)
• M8: 11,162,096 km (0.077 R)
• M9: 12,497,107 km (0.12 R)
• M10: 15,038,775 km (0.112 R)
• M11: 16,732,971 km (0.095 R)
• M12: 17,696,381 km (0.096 R)
• M13: 31,271,939 km (0.098 R)
• M14: 33,804,182 km (0.093 R)
• M15: 34,898,490 km (0.097 R)
• M16: 35,342,796 km (0.108 R)
• M17: 40,238,985 km (0.11 R)
• M18: 41,468,081 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.7

Radius: 5.3

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 5.62 AU - 9.32 AU

Year: 13615 Days

Day: 16.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 42,560,732 km

• M1: 66,421 km (0.109 R)
• M2: 362,027 km (0.067 R)
• M3: 562,937 km (0.093 R)
• M4: 762,351 km (0.118 R)
• M5: 1,593,068 km (0.114 R)
• M6: 2,065,049 km (0.111 R)
• M7: 3,835,839 km (0.111 R)
• M8: 4,393,839 km (0.062 R)
• M9: 5,769,541 km (0.105 R)
• M10: 7,369,939 km (0.074 R)
• M11: 7,853,140 km (0.091 R)
• M12: 12,007,473 km (0.117 R)
• M13: 17,637,290 km (0.117 R)
• M14: 27,856,320 km (0.059 R)
• M15: 29,024,979 km (0.073 R)
• M16: 33,048,264 km (0.092 R)
• M17: 39,695,496 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: 387 - 11,802 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit