🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 365.3

Radius: 12.4

Gravity: 2.38 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.6 AU - 0.76 AU

Year: 387 Days

Day: 8.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,895,678 km

• M1: 154,235 km (0.112 R)
• M2: 614,398 km (0.103 R)
• M3: 1,018,163 km (0.091 R)
• M4: 1,439,730 km (0.031 R)
• M5: 2,009,399 km (0.061 R)
• M6: 2,461,334 km (0.107 R)
• M7: 2,913,867 km (0.096 R)
• M8: 3,552,351 km (0.065 R)
• M9: 3,976,611 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.4

Radius: 13.5

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.04 AU - 1.38 AU

Year: 919 Days

Day: 12.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,895,678 km

• M1: 167,849 km (0.119 R)
• M2: 650,900 km (0.1 R)
• M3: 1,076,357 km (0.086 R)
• M4: 1,504,356 km (0.096 R)
• M5: 2,269,998 km (0.107 R)
• M6: 2,825,754 km (0.118 R)
• M7: 3,621,166 km (0.12 R)
• M8: 4,760,503 km (0.095 R)
• M9: 6,303,007 km (0.119 R)
• M10: 6,829,891 km (0.087 R)
• M11: 7,611,988 km (0.078 R)
• M12: 8,452,878 km (0.094 R)
• M13: 9,560,650 km (0.118 R)
• M14: 10,103,541 km (0.089 R)
• M15: 11,054,235 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315

Radius: 13.2

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.54 AU - 1.62 AU

Year: 1371 Days

Day: 5.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,895,678 km

• M1: 164,109 km (0.081 R)
• M2: 585,975 km (0.11 R)
• M3: 1,187,657 km (0.09 R)
• M4: 1,653,655 km (0.091 R)
• M5: 2,150,619 km (0.1 R)
• M6: 2,919,702 km (0.083 R)
• M7: 3,341,568 km (0.109 R)
• M8: 4,131,444 km (0.119 R)
• M9: 4,683,909 km (0.057 R)
• M10: 7,005,818 km (0.051 R)
• M11: 7,622,460 km (0.063 R)
• M12: 8,044,925 km (0.097 R)
• M13: 8,828,967 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.9

Radius: 10.9

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 2.18 AU - 2.94 AU

Year: 2827 Days

Day: 6.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 113.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,895,678 km

• M1: 201,359 km (0.088 R)
• M2: 576,849 km (0.084 R)
• M3: 2,044,704 km (0.09 R)
• M4: 2,674,361 km (0.111 R)
• M5: 4,142,664 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 498.4

Radius: 13.7

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.58 AU - 3.34 AU

Year: 3515 Days

Day: 9.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 65,895,678 km

• M1: 170,392 km (0.03 R)
• M2: 608,564 km (0.088 R)
• M3: 1,503,309 km (0.076 R)
• M4: 1,985,014 km (0.1 R)
• M5: 2,865,248 km (0.111 R)
• M6: 3,306,113 km (0.034 R)
• M7: 5,833,719 km (0.077 R)
• M8: 7,445,935 km (0.116 R)
• M9: 10,163,380 km (0.107 R)
• M10: 17,807,682 km (0.075 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.7

Radius: 11.7

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 3.27 AU - 3.35 AU

Year: 4157 Days

Day: 6.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 65,895,678 km

• M1: 145,559 km (0.101 R)
• M2: 562,787 km (0.112 R)
• M3: 985,401 km (0.097 R)
• M4: 1,351,617 km (0.101 R)
• M5: 1,744,162 km (0.113 R)
• M6: 2,253,393 km (0.088 R)
• M7: 2,798,378 km (0.085 R)
• M8: 3,203,788 km (0.058 R)
• M9: 4,553,909 km (0.095 R)
• M10: 5,024,992 km (0.03 R)
• M11: 5,603,338 km (0.039 R)
• M12: 6,252,293 km (0.058 R)
• M13: 7,731,966 km (0.09 R)
• M14: 8,306,422 km (0.117 R)
• M15: 8,874,744 km (0.119 R)
• M16: 10,505,361 km (0.095 R)
• M17: 12,672,136 km (0.113 R)
• M18: 13,426,110 km (0.05 R)
• M19: 15,467,223 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.2

Radius: 14.5

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.32 AU - 4.92 AU

Year: 6854 Days

Day: 9.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 65,895,678 km

• M1: 180,864 km (0.102 R)
• M2: 703,260 km (0.095 R)
• M3: 1,276,369 km (0.092 R)
• M4: 1,859,053 km (0.083 R)
• M5: 2,313,381 km (0.119 R)
• M6: 3,453,916 km (0.057 R)
• M7: 4,436,923 km (0.093 R)
• M8: 5,772,533 km (0.066 R)
• M9: 7,891,437 km (0.117 R)
• M10: 8,869,957 km (0.111 R)
• M11: 10,012,735 km (0.034 R)
• M12: 11,717,852 km (0.09 R)
• M13: 12,197,163 km (0.119 R)
• M14: 12,940,814 km (0.1 R)
• M15: 13,872,959 km (0.099 R)
• M16: 15,987,375 km (0.103 R)
• M17: 17,305,781 km (0.086 R)
• M18: 19,417,504 km (0.087 R)
• M19: 22,347,229 km (0.103 R)
• M20: 23,310,939 km (0.06 R)
• M21: 25,162,511 km (0.101 R)
• M22: 26,861,644 km (0.094 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.2

Radius: 9

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.18 AU - 5.54 AU

Year: 8566 Days

Day: 7.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 177.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 65,895,678 km

• M1: 148,401 km (0.1 R)
• M2: 531,372 km (0.098 R)
• M3: 1,160,431 km (0.105 R)
• M4: 1,663,229 km (0.067 R)
• M5: 2,415,557 km (0.101 R)
• M6: 2,767,860 km (0.111 R)
• M7: 4,666,107 km (0.033 R)
• M8: 6,694,505 km (0.113 R)
• M9: 8,600,082 km (0.095 R)
• M10: 9,786,094 km (0.05 R)
• M11: 10,841,956 km (0.061 R)
• M12: 11,847,254 km (0.047 R)
• M13: 12,266,277 km (0.111 R)
• M14: 13,628,665 km (0.117 R)
• M15: 16,547,320 km (0.069 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 334

Radius: 7

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 8.57 AU - 12.19 AU

Year: 23084 Days

Day: 21.4 Hours

Environment

Temp: -243 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,895,678 km

• M1: 87,066 km (0.109 R)
• M2: 503,696 km (0.099 R)
• M3: 768,783 km (0.081 R)
• M4: 1,675,496 km (0.083 R)
• M5: 2,124,439 km (0.076 R)
• M6: 3,784,377 km (0.062 R)
• M7: 4,173,781 km (0.116 R)
• M8: 6,492,548 km (0.107 R)
• M9: 7,319,525 km (0.11 R)
• M10: 9,447,405 km (0.096 R)
• M11: 11,893,480 km (0.068 R)
• M12: 19,703,087 km (0.07 R)
• M13: 20,146,944 km (0.049 R)
• M14: 22,179,231 km (0.092 R)
• M15: 29,318,939 km (0.077 R)
• M16: 30,719,923 km (0.084 R)
• M17: 31,678,396 km (0.034 R)
• M18: 33,028,667 km (0.081 R)
• M19: 43,123,980 km (0.093 R)
• M20: 53,191,617 km (0.086 R)
• M21: 57,585,606 km (0.089 R)
• M22: 62,405,649 km (0.052 R)
• M23: 62,978,460 km (0.117 R)
• M24: 65,501,577 km (0.061 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: 476 - 17,232 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit