🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.57 AU - 0.73 AU

Year: 344 Days

Day: 21.7 Hours

Environment

Temp: -126 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.2

Radius: 11.1

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 0.61 AU - 0.99 AU

Year: 469 Days

Day: 9.6 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 39,149,415 km

• M1: 138,677 km (0.057 R)
• M2: 584,928 km (0.111 R)
• M3: 1,165,367 km (0.088 R)
• M4: 1,523,804 km (0.112 R)
• M5: 2,122,195 km (0.103 R)
• M6: 2,481,230 km (0.101 R)
• M7: 2,881,255 km (0.085 R)
• M8: 3,659,014 km (0.05 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 876.1

Radius: 10.4

Gravity: 8.1 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.05 AU - 1.19 AU

Year: 778 Days

Day: 9.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,149,415 km

• M1: 129,851 km (0.105 R)
• M2: 516,561 km (0.07 R)
• M3: 1,009,935 km (0.115 R)
• M4: 1,347,727 km (0.065 R)
• M5: 2,049,491 km (0.09 R)
• M6: 2,511,898 km (0.06 R)
• M7: 2,991,957 km (0.102 R)
• M8: 3,349,945 km (0.107 R)
• M9: 4,026,427 km (0.068 R)
• M10: 4,756,464 km (0.118 R)
• M11: 5,209,147 km (0.087 R)
• M12: 6,307,196 km (0.081 R)
• M13: 6,854,425 km (0.069 R)
• M14: 7,722,541 km (0.075 R)
• M15: 8,145,155 km (0.078 R)
• M16: 8,583,327 km (0.054 R)
• M17: 9,283,595 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.9

Radius: 14.8

Gravity: 0.05 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.95 AU - 1.45 AU

Year: 862 Days

Day: 13.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 39,149,415 km

• M1: 199,713 km (0.102 R)
• M2: 848,220 km (0.087 R)
• M3: 1,647,222 km (0.069 R)
• M4: 2,232,000 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 592.5

Radius: 8.4

Gravity: 8.4 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.27 AU - 1.39 AU

Year: 1006 Days

Day: 13 Hours

Environment

Temp: -168 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 39,149,415 km

• M1: 105,317 km (0.03 R)
• M2: 410,048 km (0.119 R)
• M3: 679,922 km (0.112 R)
• M4: 948,600 km (0.09 R)
• M5: 1,254,528 km (0.049 R)
• M6: 1,704,369 km (0.101 R)
• M7: 1,972,598 km (0.079 R)
• M8: 2,631,127 km (0.099 R)
• M9: 2,927,630 km (0.119 R)
• M10: 3,301,924 km (0.061 R)
• M11: 3,603,214 km (0.077 R)
• M12: 3,938,613 km (0.066 R)
• M13: 4,361,975 km (0.052 R)
• M14: 5,128,365 km (0.119 R)
• M15: 5,474,684 km (0.06 R)
• M16: 6,857,417 km (0.085 R)
• M17: 7,519,687 km (0.104 R)
• M18: 8,146,352 km (0.117 R)
• M19: 8,998,761 km (0.095 R)
• M20: 9,305,137 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.1

Radius: 11.2

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 1.19 AU - 1.65 AU

Year: 1110 Days

Day: 7.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,149,415 km

• M1: 139,276 km (0.033 R)
• M2: 547,977 km (0.119 R)
• M3: 1,648,419 km (0.091 R)
• M4: 2,304,555 km (0.028 R)
• M5: 2,799,724 km (0.057 R)
• M6: 3,585,113 km (0.115 R)
• M7: 4,321,284 km (0.069 R)
• M8: 5,155,442 km (0.096 R)
• M9: 5,611,117 km (0.085 R)
• M10: 6,072,178 km (0.078 R)
• M11: 6,535,781 km (0.101 R)
• M12: 7,046,509 km (0.111 R)
• M13: 8,685,802 km (0.086 R)
• M14: 9,565,437 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.4

Radius: 12.1

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.46 AU - 1.6 AU

Year: 1241 Days

Day: 7 Hours

Environment

Temp: -179 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,149,415 km

• M1: 150,645 km (0.082 R)
• M2: 613,501 km (0.116 R)
• M3: 997,519 km (0.042 R)
• M4: 3,738,451 km (0.112 R)
• M5: 4,386,958 km (0.075 R)
• M6: 5,014,820 km (0.109 R)
• M7: 5,466,007 km (0.091 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.8

Radius: 11.8

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 2.18 AU - 2.6 AU

Year: 2424 Days

Day: 12.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,149,415 km

• M1: 147,055 km (0.06 R)
• M2: 531,521 km (0.083 R)
• M3: 1,507,797 km (0.092 R)
• M4: 2,601,208 km (0.032 R)
• M5: 3,361,614 km (0.107 R)
• M6: 3,870,247 km (0.075 R)
• M7: 4,951,989 km (0.029 R)
• M8: 5,539,310 km (0.056 R)
• M9: 7,024,368 km (0.114 R)
• M10: 11,035,685 km (0.109 R)
• M11: 13,816,411 km (0.057 R)
• M12: 16,774,559 km (0.107 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.3

Radius: 13.9

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 4.79 AU - 4.97 AU

Year: 7072 Days

Day: 8.9 Hours

Environment

Temp: -208 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 39,149,415 km

• M1: 172,935 km (0.084 R)
• M2: 631,153 km (0.086 R)
• M3: 1,113,756 km (0.111 R)
• M4: 1,689,110 km (0.06 R)
• M5: 5,683,223 km (0.114 R)
• M6: 7,080,766 km (0.061 R)
• M7: 7,842,519 km (0.096 R)
• M8: 8,430,438 km (0.089 R)
• M9: 9,087,023 km (0.09 R)
• M10: 9,612,112 km (0.1 R)
• M11: 11,775,896 km (0.1 R)
• M12: 13,664,868 km (0.062 R)
• M13: 15,406,038 km (0.048 R)
• M14: 16,330,253 km (0.117 R)
• M15: 18,544,601 km (0.072 R)
• M16: 21,162,264 km (0.112 R)
• M17: 25,339,037 km (0.107 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 673.4

Radius: 8

Gravity: 10.52 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 4.98 AU - 5.12 AU

Year: 7445 Days

Day: 6.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 39,149,415 km

• M1: 99,632 km (0.052 R)
• M2: 350,807 km (0.063 R)
• M3: 754,572 km (0.091 R)
• M4: 1,022,651 km (0.106 R)
• M5: 1,391,111 km (0.084 R)
• M6: 1,675,347 km (0.088 R)
• M7: 2,506,064 km (0.118 R)
• M8: 3,076,031 km (0.103 R)
• M9: 3,587,207 km (0.101 R)
• M10: 3,950,281 km (0.112 R)
• M11: 4,337,590 km (0.09 R)
• M12: 4,721,907 km (0.077 R)
• M13: 5,098,894 km (0.115 R)
• M14: 5,527,043 km (0.048 R)
• M15: 5,880,244 km (0.113 R)
• M16: 7,837,432 km (0.073 R)
• M17: 8,160,414 km (0.092 R)
• M18: 10,480,827 km (0.07 R)
• M19: 13,551,174 km (0.037 R)
• M20: 15,668,283 km (0.113 R)
• M21: 19,206,721 km (0.108 R)
• M22: 20,243,434 km (0.095 R)
• M23: 20,622,515 km (0.038 R)
• M24: 22,589,578 km (0.065 R)
• M25: 24,850,899 km (0.065 R)
• M26: 25,902,722 km (0.099 R)
• M27: 27,350,979 km (0.049 R)
• M28: 38,104,522 km (0.118 R)
• M29: 38,450,692 km (0.098 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: 465 - 15,500 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit