🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.6

Radius: 10.5

Gravity: 7.91 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.64 AU - 0.74 AU

Year: 389 Days

Day: 12.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,126,999 km

• M1: 130,599 km (0.068 R)
• M2: 556,504 km (0.111 R)
• M3: 1,059,153 km (0.057 R)
• M4: 1,547,590 km (0.116 R)
• M5: 2,307,398 km (0.078 R)
• M6: 2,751,853 km (0.111 R)
• M7: 3,334,537 km (0.099 R)
• M8: 4,145,806 km (0.081 R)
• M9: 4,511,124 km (0.097 R)
• M10: 5,322,842 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431

Radius: 10.9

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.9 AU - 1.32 AU

Year: 793 Days

Day: 10.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 35,126,999 km

• M1: 135,536 km (0.116 R)
• M2: 827,875 km (0.04 R)
• M3: 1,269,488 km (0.103 R)
• M4: 1,801,009 km (0.105 R)
• M5: 2,581,910 km (0.076 R)
• M6: 3,289,807 km (0.12 R)
• M7: 5,022,449 km (0.077 R)
• M8: 6,067,839 km (0.089 R)
• M9: 6,974,253 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.9

Radius: 12.3

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 2.19 AU - 2.47 AU

Year: 2412 Days

Day: 13 Hours

Environment

Temp: -200 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 35,126,999 km

• M1: 153,039 km (0.066 R)
• M2: 608,115 km (0.088 R)
• M3: 1,103,135 km (0.116 R)
• M4: 1,747,154 km (0.052 R)
• M5: 3,352,039 km (0.038 R)
• M6: 5,229,493 km (0.055 R)
• M7: 7,533,749 km (0.102 R)
• M8: 8,355,191 km (0.095 R)
• M9: 9,681,974 km (0.09 R)
• M10: 11,396,216 km (0.117 R)
• M11: 12,985,694 km (0.115 R)
• M12: 13,710,495 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.5

Radius: 14.2

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.04 AU - 2.82 AU

Year: 2569 Days

Day: 10.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,126,999 km

• M1: 178,021 km (0.079 R)
• M2: 722,558 km (0.082 R)
• M3: 1,199,027 km (0.102 R)
• M4: 1,843,195 km (0.048 R)
• M5: 2,506,961 km (0.092 R)
• M6: 3,117,470 km (0.089 R)
• M7: 3,809,510 km (0.1 R)
• M8: 4,487,936 km (0.12 R)
• M9: 5,812,625 km (0.063 R)
• M10: 6,890,777 km (0.114 R)
• M11: 8,355,939 km (0.115 R)
• M12: 9,039,751 km (0.099 R)
• M13: 9,922,228 km (0.066 R)
• M14: 10,723,774 km (0.079 R)
• M15: 11,281,923 km (0.055 R)
• M16: 12,006,725 km (0.07 R)
• M17: 12,456,416 km (0.082 R)
• M18: 13,191,391 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.6

Radius: 10.7

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.4 AU - 3.92 AU

Year: 3810 Days

Day: 15 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,126,999 km

• M1: 133,142 km (0.088 R)
• M2: 713,283 km (0.104 R)
• M3: 1,329,327 km (0.084 R)
• M4: 1,774,979 km (0.089 R)
• M5: 2,165,579 km (0.034 R)
• M6: 2,589,240 km (0.104 R)
• M7: 2,986,572 km (0.047 R)
• M8: 3,424,445 km (0.06 R)
• M9: 5,727,205 km (0.119 R)
• M10: 6,452,306 km (0.073 R)
• M11: 6,968,867 km (0.091 R)
• M12: 7,512,805 km (0.092 R)
• M13: 11,191,417 km (0.029 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.2

Radius: 14.6

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 3.08 AU - 3.44 AU

Year: 3992 Days

Day: 8 Hours

Environment

Temp: -207 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,126,999 km

• M1: 183,557 km (0.071 R)
• M2: 713,731 km (0.093 R)
• M3: 1,408,913 km (0.096 R)
• M4: 2,296,477 km (0.076 R)
• M5: 2,902,199 km (0.105 R)
• M6: 3,777,645 km (0.112 R)
• M7: 4,392,792 km (0.076 R)
• M8: 6,229,106 km (0.109 R)
• M9: 8,352,648 km (0.073 R)
• M10: 10,965,973 km (0.102 R)
• M11: 13,880,289 km (0.084 R)
• M12: 14,394,606 km (0.119 R)
• M13: 15,352,481 km (0.085 R)
• M14: 16,695,272 km (0.066 R)
• M15: 19,614,076 km (0.102 R)
• M16: 20,858,282 km (0.066 R)
• M17: 23,071,732 km (0.115 R)
• M18: 24,532,405 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.3

Radius: 10.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.47 AU - 3.75 AU

Year: 4652 Days

Day: 15 Hours

Environment

Temp: -213 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,126,999 km

• M1: 130,001 km (0.069 R)
• M2: 480,658 km (0.093 R)
• M3: 1,300,305 km (0.084 R)
• M4: 2,140,895 km (0.099 R)
• M5: 2,543,313 km (0.086 R)
• M6: 3,060,324 km (0.085 R)
• M7: 3,889,694 km (0.103 R)
• M8: 4,773,518 km (0.118 R)
• M9: 5,134,648 km (0.034 R)
• M10: 5,760,864 km (0.062 R)
• M11: 6,766,760 km (0.057 R)
• M12: 7,519,836 km (0.111 R)
• M13: 8,359,978 km (0.057 R)
• M14: 10,638,353 km (0.082 R)
• M15: 11,535,342 km (0.059 R)
• M16: 12,909,548 km (0.1 R)
• M17: 14,812,583 km (0.113 R)
• M18: 15,146,934 km (0.06 R)
• M19: 15,633,426 km (0.095 R)
• M20: 17,051,464 km (0.104 R)
• M21: 18,388,271 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 210.7

Radius: 10.1

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 3.18 AU - 4.24 AU

Year: 4847 Days

Day: 8.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,126,999 km

• M1: 131,347 km (0.1 R)
• M2: 575,204 km (0.092 R)
• M3: 1,482,964 km (0.087 R)
• M4: 1,933,403 km (0.12 R)
• M5: 2,695,754 km (0.066 R)
• M6: 3,215,008 km (0.116 R)
• M7: 4,036,599 km (0.058 R)
• M8: 4,453,828 km (0.118 R)
• M9: 5,301,898 km (0.104 R)
• M10: 6,843,205 km (0.089 R)
• M11: 14,253,386 km (0.103 R)
• M12: 17,135,090 km (0.082 R)
• M13: 18,232,091 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 828.6

Radius: 5.9

Gravity: 23.8 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 5.38 AU - 8.76 AU

Year: 12750 Days

Day: 21.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 35,126,999 km

• M1: 74,500 km (0.07 R)
• M2: 661,223 km (0.12 R)
• M3: 944,711 km (0.093 R)
• M4: 1,164,470 km (0.099 R)
• M5: 1,376,001 km (0.061 R)
• M6: 1,912,609 km (0.069 R)
• M7: 2,209,261 km (0.089 R)
• M8: 3,136,170 km (0.114 R)
• M9: 3,338,576 km (0.1 R)
• M10: 4,087,463 km (0.101 R)
• M11: 4,775,912 km (0.118 R)
• M12: 5,760,565 km (0.082 R)
• M13: 5,987,954 km (0.12 R)
• M14: 6,542,214 km (0.111 R)
• M15: 8,266,030 km (0.043 R)
• M16: 10,216,637 km (0.077 R)
• M17: 11,897,519 km (0.068 R)
• M18: 12,204,942 km (0.06 R)
• M19: 15,870,389 km (0.109 R)
• M20: 17,951,894 km (0.097 R)
• M21: 19,183,533 km (0.08 R)
• M22: 22,274,525 km (0.098 R)
• M23: 29,983,602 km (0.101 R)
• M24: 31,013,583 km (0.119 R)
• M25: 31,478,833 km (0.03 R)
• M26: 32,902,556 km (0.101 R)
• M27: 35,243,762 km (0.074 R)
• M28: 37,693,727 km (0.106 R)
• M29: 41,366,953 km (0.105 R)
• M30: 44,531,097 km (0.09 R)
• M31: 51,012,425 km (0.115 R)
• M32: 51,335,856 km (0.084 R)
• M33: 51,823,545 km (0.105 R)
• M34: 52,150,416 km (0.093 R)
• M35: 57,743,731 km (0.094 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 125.9

Radius: 6.9

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 6.98 AU - 8.52 AU

Year: 14633 Days

Day: 21.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,126,999 km

• M1: 86,468 km (0.09 R)
• M2: 362,027 km (0.084 R)
• M3: 680,670 km (0.039 R)
• M4: 1,234,033 km (0.087 R)
• M5: 1,524,701 km (0.104 R)
• M6: 1,933,702 km (0.101 R)
• M7: 2,245,464 km (0.034 R)
• M8: 2,483,325 km (0.09 R)
• M9: 2,737,940 km (0.106 R)
• M10: 3,609,049 km (0.112 R)
• M11: 4,233,620 km (0.105 R)
• M12: 4,492,274 km (0.075 R)
• M13: 6,372,420 km (0.107 R)
• M14: 6,887,486 km (0.068 R)
• M15: 7,173,367 km (0.099 R)
• M16: 7,692,622 km (0.064 R)
• M17: 9,143,123 km (0.084 R)
• M18: 10,023,207 km (0.112 R)
• M19: 12,002,237 km (0.048 R)
• M20: 12,680,514 km (0.11 R)
• M21: 13,829,725 km (0.114 R)
• M22: 19,125,041 km (0.056 R)
• M23: 26,666,269 km (0.111 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 15,249 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit