🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.4

Radius: 8.8

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.54 AU - 0.56 AU

Year: 287 Days

Day: 9.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,975,435 km

• M1: 109,655 km (0.117 R)
• M2: 393,592 km (0.077 R)
• M3: 755,768 km (0.084 R)
• M4: 1,165,517 km (0.118 R)
• M5: 1,468,901 km (0.102 R)
• M6: 2,247,259 km (0.047 R)
• M7: 2,778,182 km (0.117 R)
• M8: 3,559,532 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.4

Radius: 9.2

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 0.55 AU - 0.75 AU

Year: 368 Days

Day: 11.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,975,435 km

• M1: 114,442 km (0.105 R)
• M2: 429,645 km (0.085 R)
• M3: 716,125 km (0.113 R)
• M4: 1,479,224 km (0.105 R)
• M5: 2,045,751 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997.9

Radius: 8.1

Gravity: 15.21 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 0.8 AU - 0.86 AU

Year: 532 Days

Day: 13.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,975,435 km

• M1: 100,679 km (0.107 R)
• M2: 358,586 km (0.106 R)
• M3: 650,452 km (0.09 R)
• M4: 960,269 km (0.084 R)
• M5: 1,287,888 km (0.113 R)
• M6: 1,951,504 km (0.101 R)
• M7: 2,270,297 km (0.045 R)
• M8: 2,678,699 km (0.112 R)
• M9: 3,001,532 km (0.105 R)
• M10: 3,350,394 km (0.111 R)
• M11: 3,795,896 km (0.091 R)
• M12: 4,219,707 km (0.078 R)
• M13: 4,922,518 km (0.106 R)
• M14: 5,302,197 km (0.051 R)
• M15: 5,627,124 km (0.069 R)
• M16: 6,042,408 km (0.087 R)
• M17: 6,297,322 km (0.105 R)
• M18: 6,765,863 km (0.102 R)
• M19: 7,040,973 km (0.091 R)
• M20: 7,456,407 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.9

Radius: 13.5

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.22 AU - 1.5 AU

Year: 1115 Days

Day: 5.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,975,435 km

• M1: 169,494 km (0.097 R)
• M2: 589,416 km (0.094 R)
• M3: 1,428,959 km (0.099 R)
• M4: 1,874,013 km (0.083 R)
• M5: 2,336,120 km (0.11 R)
• M6: 3,202,142 km (0.086 R)
• M7: 3,980,650 km (0.111 R)
• M8: 5,066,581 km (0.069 R)
• M9: 5,569,080 km (0.058 R)
• M10: 6,104,640 km (0.107 R)
• M11: 7,232,010 km (0.059 R)
• M12: 7,770,113 km (0.116 R)
• M13: 9,065,481 km (0.113 R)
• M14: 9,721,169 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366.6

Radius: 9.8

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 2.15 AU - 2.27 AU

Year: 2309 Days

Day: 11 Hours

Environment

Temp: -199 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 60,975,435 km

• M1: 121,922 km (0.098 R)
• M2: 510,129 km (0.111 R)
• M3: 963,859 km (0.098 R)
• M4: 1,284,896 km (0.048 R)
• M5: 1,738,477 km (0.063 R)
• M6: 2,769,954 km (0.091 R)
• M7: 3,702,547 km (0.048 R)
• M8: 4,432,585 km (0.085 R)
• M9: 4,750,331 km (0.093 R)
• M10: 8,219,655 km (0.074 R)
• M11: 9,458,774 km (0.118 R)
• M12: 9,820,352 km (0.041 R)
• M13: 12,381,169 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922

Radius: 13

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 2.81 AU - 3.37 AU

Year: 3818 Days

Day: 9.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,975,435 km

• M1: 161,715 km (0.095 R)
• M2: 789,278 km (0.088 R)
• M3: 1,212,042 km (0.066 R)
• M4: 1,791,734 km (0.098 R)
• M5: 2,822,014 km (0.115 R)
• M6: 3,459,600 km (0.098 R)
• M7: 4,032,859 km (0.108 R)
• M8: 5,317,008 km (0.089 R)
• M9: 7,020,179 km (0.032 R)
• M10: 8,231,922 km (0.105 R)
• M11: 9,864,932 km (0.069 R)
• M12: 11,797,438 km (0.118 R)
• M13: 12,853,150 km (0.064 R)
• M14: 15,263,022 km (0.077 R)
• M15: 17,107,863 km (0.081 R)
• M16: 18,208,754 km (0.102 R)
• M17: 19,815,285 km (0.104 R)
• M18: 24,814,996 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.1

Radius: 14.4

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.29 AU - 5.39 AU

Year: 6355 Days

Day: 13.9 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 60,975,435 km

• M1: 179,817 km (0.083 R)
• M2: 974,780 km (0.088 R)
• M3: 1,729,800 km (0.113 R)
• M4: 2,313,531 km (0.099 R)
• M5: 3,008,264 km (0.086 R)
• M6: 3,459,600 km (0.096 R)
• M7: 4,449,639 km (0.061 R)
• M8: 5,531,381 km (0.038 R)
• M9: 6,312,731 km (0.067 R)
• M10: 7,529,111 km (0.103 R)
• M11: 8,252,267 km (0.118 R)
• M12: 10,015,727 km (0.12 R)
• M13: 11,034,040 km (0.057 R)
• M14: 16,678,667 km (0.055 R)
• M15: 17,514,320 km (0.092 R)
• M16: 18,922,784 km (0.077 R)
• M17: 21,064,278 km (0.113 R)
• M18: 23,283,861 km (0.095 R)
• M19: 27,293,832 km (0.099 R)
• M20: 30,588,127 km (0.106 R)
• M21: 31,645,485 km (0.116 R)
• M22: 33,226,734 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150

Radius: 11.6

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.74 AU - 5.92 AU

Year: 7462 Days

Day: 6.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,975,435 km

• M1: 157,227 km (0.087 R)
• M2: 559,496 km (0.112 R)
• M3: 1,274,275 km (0.03 R)
• M4: 2,384,141 km (0.043 R)
• M5: 2,957,700 km (0.085 R)
• M6: 3,352,189 km (0.071 R)
• M7: 3,721,247 km (0.106 R)
• M8: 4,359,880 km (0.117 R)
• M9: 5,145,568 km (0.103 R)
• M10: 6,136,056 km (0.1 R)
• M11: 6,782,767 km (0.107 R)
• M12: 7,345,106 km (0.114 R)
• M13: 7,972,370 km (0.082 R)
• M14: 8,998,462 km (0.047 R)
• M15: 10,473,497 km (0.072 R)
• M16: 11,615,527 km (0.073 R)
• M17: 12,605,865 km (0.077 R)
• M18: 12,979,710 km (0.095 R)
• M19: 14,346,885 km (0.094 R)
• M20: 15,970,021 km (0.03 R)
• M21: 16,574,546 km (0.111 R)
• M22: 18,539,515 km (0.116 R)
• M23: 19,828,151 km (0.084 R)
• M24: 21,241,252 km (0.07 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.1

Radius: 5.7

Gravity: 18.53 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 5.67 AU - 7.93 AU

Year: 12464 Days

Day: 22.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 60,975,435 km

• M1: 70,909 km (0.076 R)
• M2: 717,023 km (0.103 R)
• M3: 1,104,631 km (0.064 R)
• M4: 1,607,579 km (0.081 R)
• M5: 2,309,043 km (0.114 R)
• M6: 2,893,971 km (0.115 R)
• M7: 3,419,059 km (0.105 R)
• M8: 4,090,455 km (0.116 R)
• M9: 4,412,240 km (0.116 R)
• M10: 5,584,788 km (0.117 R)
• M11: 5,834,766 km (0.03 R)
• M12: 7,324,910 km (0.05 R)
• M13: 8,203,349 km (0.116 R)
• M14: 8,573,604 km (0.083 R)
• M15: 10,062,252 km (0.059 R)
• M16: 13,605,029 km (0.098 R)
• M17: 14,189,508 km (0.099 R)
• M18: 14,655,655 km (0.082 R)
• M19: 15,478,443 km (0.047 R)
• M20: 16,115,431 km (0.075 R)
• M21: 17,517,462 km (0.097 R)
• M22: 18,680,137 km (0.111 R)
• M23: 19,320,864 km (0.098 R)
• M24: 20,058,980 km (0.046 R)
• M25: 23,568,696 km (0.118 R)
• M26: 24,411,081 km (0.034 R)
• M27: 25,273,513 km (0.103 R)
• M28: 26,755,579 km (0.066 R)
• M29: 26,957,536 km (0.028 R)
• M30: 27,364,293 km (0.102 R)
• M31: 29,891,899 km (0.1 R)
• M32: 30,327,827 km (0.037 R)
• M33: 31,436,048 km (0.114 R)
• M34: 31,773,690 km (0.076 R)
• M35: 33,615,539 km (0.039 R)
• M36: 35,284,453 km (0.096 R)
• M37: 41,022,279 km (0.101 R)
• M38: 42,103,573 km (0.068 R)
• M39: 50,362,572 km (0.107 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660.5

Radius: 5.9

Gravity: 18.97 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 7.53 AU - 7.59 AU

Year: 14611 Days

Day: 17 Hours

Environment

Temp: -234 °C

Axial Tilt: 14.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,975,435 km

• M1: 73,453 km (0.067 R)
• M2: 394,190 km (0.073 R)
• M3: 824,135 km (0.049 R)
• M4: 2,531,046 km (0.118 R)
• M5: 3,208,575 km (0.117 R)
• M6: 4,949,446 km (0.106 R)
• M7: 5,155,891 km (0.103 R)
• M8: 5,440,127 km (0.108 R)
• M9: 6,518,278 km (0.118 R)
• M10: 7,107,694 km (0.111 R)
• M11: 8,152,037 km (0.068 R)
• M12: 8,343,672 km (0.049 R)
• M13: 8,686,251 km (0.109 R)
• M14: 9,347,174 km (0.108 R)
• M15: 12,079,430 km (0.099 R)
• M16: 12,581,331 km (0.119 R)
• M17: 15,520,330 km (0.05 R)
• M18: 16,953,478 km (0.117 R)
• M19: 17,502,951 km (0.093 R)
• M20: 21,413,589 km (0.099 R)
• M21: 25,766,438 km (0.097 R)
• M22: 32,200,044 km (0.113 R)
• M23: 34,896,396 km (0.103 R)
• M24: 39,626,980 km (0.08 R)
• M25: 42,574,806 km (0.099 R)
• M26: 43,735,087 km (0.113 R)
• M27: 44,470,959 km (0.107 R)
• M28: 48,902,497 km (0.029 R)
• M29: 54,801,889 km (0.098 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 154 - 18,077 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit