🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.6

Radius: 10.5

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.61 AU - 0.63 AU

Year: 326 Days

Day: 10.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,883,276 km

• M1: 130,599 km (0.072 R)
• M2: 511,326 km (0.111 R)
• M3: 845,378 km (0.115 R)
• M4: 1,174,343 km (0.073 R)
• M5: 1,525,150 km (0.065 R)
• M6: 1,863,391 km (0.049 R)
• M7: 2,380,252 km (0.109 R)
• M8: 3,485,630 km (0.092 R)
• M9: 3,872,042 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.1

Radius: 12.3

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.56 AU - 0.74 AU

Year: 349 Days

Day: 6.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,883,276 km

• M1: 153,039 km (0.094 R)
• M2: 592,258 km (0.088 R)
• M3: 987,047 km (0.058 R)
• M4: 1,883,736 km (0.106 R)
• M5: 2,451,012 km (0.042 R)
• M6: 2,863,154 km (0.066 R)
• M7: 3,333,340 km (0.115 R)
• M8: 5,282,151 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.9

Radius: 10.8

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.58 AU - 0.92 AU

Year: 433 Days

Day: 9.4 Hours

Environment

Temp: -162 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 27,883,276 km

• M1: 134,339 km (0.075 R)
• M2: 523,144 km (0.104 R)
• M3: 1,165,966 km (0.045 R)
• M4: 1,625,979 km (0.087 R)
• M5: 2,073,576 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.6

Radius: 12.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.64 AU - 1.04 AU

Year: 513 Days

Day: 6.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 27,883,276 km

• M1: 160,369 km (0.054 R)
• M2: 843,283 km (0.092 R)
• M3: 1,283,400 km (0.064 R)
• M4: 1,697,936 km (0.103 R)
• M5: 2,720,736 km (0.081 R)
• M6: 3,318,230 km (0.087 R)
• M7: 3,967,485 km (0.104 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 220.2

Radius: 8.9

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.03 AU - 1.47 AU

Year: 932 Days

Day: 10.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,883,276 km

• M1: 111,002 km (0.1 R)
• M2: 402,717 km (0.088 R)
• M3: 687,851 km (0.113 R)
• M4: 975,827 km (0.112 R)
• M5: 1,289,085 km (0.086 R)
• M6: 1,716,037 km (0.111 R)
• M7: 2,054,278 km (0.056 R)
• M8: 2,387,732 km (0.043 R)
• M9: 2,990,611 km (0.091 R)
• M10: 3,548,162 km (0.106 R)
• M11: 4,101,974 km (0.064 R)
• M12: 4,512,620 km (0.099 R)
• M13: 4,982,656 km (0.105 R)
• M14: 6,689,867 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.9

Radius: 11

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.6 AU - 1.7 AU

Year: 1413 Days

Day: 5.1 Hours

Environment

Temp: -203 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 27,883,276 km

• M1: 138,228 km (0.074 R)
• M2: 557,402 km (0.108 R)
• M3: 973,882 km (0.116 R)
• M4: 1,409,960 km (0.044 R)
• M5: 1,892,413 km (0.067 R)
• M6: 2,312,933 km (0.103 R)
• M7: 3,863,215 km (0.095 R)
• M8: 4,452,481 km (0.118 R)
• M9: 4,858,041 km (0.099 R)
• M10: 5,437,135 km (0.062 R)
• M11: 6,634,965 km (0.108 R)
• M12: 7,165,588 km (0.105 R)
• M13: 7,697,259 km (0.109 R)
• M14: 8,543,834 km (0.112 R)
• M15: 9,767,843 km (0.114 R)
• M16: 10,691,909 km (0.07 R)
• M17: 11,673,122 km (0.082 R)
• M18: 12,260,144 km (0.066 R)
• M19: 12,866,913 km (0.073 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 402.5

Radius: 10.3

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.93 AU - 3.13 AU

Year: 3517 Days

Day: 11 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 27,883,276 km

• M1: 128,056 km (0.089 R)
• M2: 638,334 km (0.112 R)
• M3: 1,017,266 km (0.074 R)
• M4: 1,558,959 km (0.12 R)
• M5: 1,891,366 km (0.082 R)
• M6: 2,258,180 km (0.113 R)
• M7: 3,434,917 km (0.094 R)
• M8: 6,026,101 km (0.115 R)
• M9: 6,377,806 km (0.071 R)
• M10: 7,122,355 km (0.119 R)
• M11: 7,796,891 km (0.1 R)
• M12: 8,117,180 km (0.108 R)
• M13: 10,419,641 km (0.108 R)
• M14: 11,452,016 km (0.09 R)
• M15: 12,858,835 km (0.107 R)
• M16: 14,187,413 km (0.068 R)
• M17: 14,909,522 km (0.112 R)
• M18: 15,354,426 km (0.05 R)
• M19: 16,115,580 km (0.078 R)
• M20: 18,835,270 km (0.035 R)
• M21: 19,472,407 km (0.087 R)
• M22: 19,944,687 km (0.057 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.8

Radius: 10.1

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 3.12 AU - 3.4 AU

Year: 3925 Days

Day: 12.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 27,883,276 km

• M1: 127,457 km (0.111 R)
• M2: 443,558 km (0.116 R)
• M3: 841,338 km (0.078 R)
• M4: 1,230,891 km (0.097 R)
• M5: 1,567,636 km (0.118 R)
• M6: 2,557,226 km (0.066 R)
• M7: 2,955,306 km (0.09 R)
• M8: 3,356,378 km (0.11 R)
• M9: 5,005,246 km (0.085 R)
• M10: 6,164,330 km (0.067 R)
• M11: 7,200,894 km (0.073 R)
• M12: 7,593,289 km (0.073 R)
• M13: 10,012,885 km (0.11 R)
• M14: 10,922,440 km (0.043 R)
• M15: 12,067,312 km (0.112 R)
• M16: 12,858,087 km (0.106 R)
• M17: 13,882,084 km (0.095 R)
• M18: 14,959,488 km (0.12 R)
• M19: 18,044,794 km (0.08 R)
• M20: 20,800,387 km (0.103 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.3

Radius: 8.3

Gravity: 8.48 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.01 AU - 4.45 AU

Year: 4804 Days

Day: 12.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 27,883,276 km

• M1: 103,522 km (0.038 R)
• M2: 662,270 km (0.074 R)
• M3: 922,869 km (0.052 R)
• M4: 1,195,137 km (0.116 R)
• M5: 1,521,859 km (0.101 R)
• M6: 2,421,541 km (0.074 R)
• M7: 3,513,605 km (0.066 R)
• M8: 3,875,632 km (0.11 R)
• M9: 4,192,331 km (0.05 R)
• M10: 5,302,197 km (0.078 R)
• M11: 6,756,139 km (0.053 R)
• M12: 7,016,589 km (0.107 R)
• M13: 8,799,646 km (0.036 R)
• M14: 9,672,699 km (0.093 R)
• M15: 10,602,151 km (0.07 R)
• M16: 16,218,204 km (0.056 R)
• M17: 17,284,388 km (0.107 R)
• M18: 24,375,327 km (0.112 R)
• M19: 24,758,148 km (0.064 R)
• M20: 25,145,008 km (0.117 R)
• M21: 27,634,018 km (0.048 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 559 - 16,369 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit