🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.7

Radius: 8.7

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.73 AU - 0.79 AU

Year: 457 Days

Day: 14.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,619,924 km

• M1: 108,159 km (0.075 R)
• M2: 461,360 km (0.085 R)
• M3: 732,880 km (0.079 R)
• M4: 1,056,759 km (0.085 R)
• M5: 1,363,585 km (0.114 R)
• M6: 1,677,291 km (0.102 R)
• M7: 2,005,210 km (0.072 R)
• M8: 2,395,062 km (0.062 R)
• M9: 2,675,558 km (0.069 R)
• M10: 3,034,593 km (0.093 R)
• M11: 3,327,805 km (0.031 R)
• M12: 3,796,644 km (0.102 R)
• M13: 4,082,077 km (0.118 R)
• M14: 4,726,844 km (0.057 R)
• M15: 5,454,787 km (0.113 R)
• M16: 5,926,320 km (0.031 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 893

Radius: 11.3

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.07 AU - 1.09 AU

Year: 775 Days

Day: 10.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 120.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,619,924 km

• M1: 140,622 km (0.101 R)
• M2: 545,883 km (0.106 R)
• M3: 1,012,030 km (0.111 R)
• M4: 1,813,575 km (0.055 R)
• M5: 2,268,502 km (0.114 R)
• M6: 2,823,660 km (0.06 R)
• M7: 3,180,451 km (0.115 R)
• M8: 3,567,460 km (0.044 R)
• M9: 4,387,406 km (0.094 R)
• M10: 4,976,822 km (0.084 R)
• M11: 5,618,298 km (0.054 R)
• M12: 6,103,743 km (0.033 R)
• M13: 6,975,150 km (0.108 R)
• M14: 7,803,923 km (0.077 R)
• M15: 8,513,316 km (0.1 R)
• M16: 8,937,575 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 843.4

Radius: 13.9

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.11 AU - 1.51 AU

Year: 1035 Days

Day: 9.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 66,619,924 km

• M1: 172,935 km (0.068 R)
• M2: 684,560 km (0.059 R)
• M3: 1,135,897 km (0.063 R)
• M4: 1,652,159 km (0.063 R)
• M5: 2,216,442 km (0.043 R)
• M6: 2,830,691 km (0.114 R)
• M7: 3,648,542 km (0.093 R)
• M8: 5,224,406 km (0.106 R)
• M9: 7,167,533 km (0.114 R)
• M10: 9,056,356 km (0.119 R)
• M11: 9,643,827 km (0.084 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.2

Radius: 11.3

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.27 AU - 2.39 AU

Year: 2455 Days

Day: 6.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,619,924 km

• M1: 140,622 km (0.087 R)
• M2: 813,663 km (0.114 R)
• M3: 1,593,367 km (0.055 R)
• M4: 2,504,717 km (0.07 R)
• M5: 2,898,010 km (0.108 R)
• M6: 3,868,751 km (0.091 R)
• M7: 4,418,972 km (0.11 R)
• M8: 5,044,141 km (0.076 R)
• M9: 5,651,359 km (0.101 R)
• M10: 6,065,146 km (0.11 R)
• M11: 6,471,454 km (0.105 R)
• M12: 7,041,422 km (0.074 R)
• M13: 7,613,634 km (0.099 R)
• M14: 9,198,474 km (0.074 R)
• M15: 9,882,884 km (0.102 R)
• M16: 10,370,573 km (0.103 R)
• M17: 12,832,805 km (0.112 R)
• M18: 13,779,909 km (0.051 R)
• M19: 14,967,267 km (0.086 R)
• M20: 16,848,161 km (0.061 R)
• M21: 17,544,988 km (0.048 R)
• M22: 18,541,459 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.7

Radius: 14.8

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.66 AU - 6.04 AU

Year: 7373 Days

Day: 8.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,619,924 km

• M1: 184,753 km (0.087 R)
• M2: 869,762 km (0.104 R)
• M3: 1,445,714 km (0.07 R)
• M4: 2,143,438 km (0.052 R)
• M5: 4,062,480 km (0.075 R)
• M6: 6,813,285 km (0.114 R)
• M7: 7,388,040 km (0.114 R)
• M8: 8,142,612 km (0.12 R)
• M9: 8,829,865 km (0.119 R)
• M10: 9,309,326 km (0.055 R)
• M11: 11,973,963 km (0.094 R)
• M12: 12,712,677 km (0.064 R)
• M13: 15,282,769 km (0.06 R)
• M14: 16,750,474 km (0.109 R)
• M15: 18,310,480 km (0.065 R)
• M16: 20,377,025 km (0.082 R)
• M17: 22,520,912 km (0.091 R)
• M18: 23,571,239 km (0.101 R)
• M19: 24,811,405 km (0.117 R)
• M20: 26,918,940 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 942.2

Radius: 5.8

Gravity: 28.01 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 5.11 AU - 6.65 AU

Year: 9842 Days

Day: 16.2 Hours

Environment

Temp: -229 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 66,619,924 km

• M1: 72,854 km (0.06 R)
• M2: 468,690 km (0.088 R)
• M3: 773,271 km (0.105 R)
• M4: 966,253 km (0.065 R)
• M5: 1,253,331 km (0.115 R)
• M6: 1,451,997 km (0.069 R)
• M7: 1,718,431 km (0.099 R)
• M8: 2,330,436 km (0.108 R)
• M9: 2,529,550 km (0.111 R)
• M10: 3,318,230 km (0.103 R)
• M11: 3,782,582 km (0.092 R)
• M12: 3,974,516 km (0.05 R)
• M13: 4,903,818 km (0.084 R)
• M14: 5,681,428 km (0.055 R)
• M15: 5,897,148 km (0.064 R)
• M16: 6,577,370 km (0.097 R)
• M17: 8,228,481 km (0.083 R)
• M18: 8,787,678 km (0.115 R)
• M19: 9,471,490 km (0.052 R)
• M20: 10,455,694 km (0.057 R)
• M21: 14,337,610 km (0.1 R)
• M22: 14,537,023 km (0.049 R)
• M23: 15,009,454 km (0.062 R)
• M24: 17,225,148 km (0.1 R)
• M25: 19,568,299 km (0.102 R)
• M26: 20,310,604 km (0.115 R)
• M27: 27,039,815 km (0.104 R)
• M28: 30,626,424 km (0.066 R)
• M29: 32,533,199 km (0.118 R)
• M30: 32,993,212 km (0.045 R)
• M31: 34,876,200 km (0.115 R)
• M32: 37,329,157 km (0.067 R)
• M33: 38,854,756 km (0.11 R)
• M34: 39,113,111 km (0.056 R)
• M35: 40,026,107 km (0.037 R)
• M36: 41,086,756 km (0.115 R)
• M37: 42,438,672 km (0.12 R)
• M38: 46,236,962 km (0.119 R)
• M39: 47,699,281 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 47.5

Radius: 4.6

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.03 AU - 7.51 AU

Year: 12159 Days

Day: 24.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 66,619,924 km

• M1: 161,416 km (0.068 R)
• M2: 370,404 km (0.098 R)
• M3: 723,754 km (0.095 R)
• M4: 876,045 km (0.053 R)
• M5: 1,190,649 km (0.107 R)
• M6: 1,691,503 km (0.111 R)
• M7: 2,610,034 km (0.046 R)
• M8: 2,854,178 km (0.088 R)
• M9: 3,295,192 km (0.082 R)
• M10: 4,378,131 km (0.114 R)
• M11: 5,036,960 km (0.085 R)
• M12: 8,655,134 km (0.087 R)
• M13: 8,942,063 km (0.103 R)
• M14: 9,610,915 km (0.117 R)
• M15: 10,513,439 km (0.075 R)
• M16: 10,716,892 km (0.104 R)
• M17: 10,964,327 km (0.106 R)
• M18: 15,462,586 km (0.115 R)
• M19: 17,882,181 km (0.062 R)
• M20: 20,796,946 km (0.042 R)
• M21: 21,182,161 km (0.03 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 195.3

Radius: 7.1

Gravity: 3.87 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 6.75 AU - 7.91 AU

Year: 13698 Days

Day: 23.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,619,924 km

• M1: 92,900 km (0.116 R)
• M2: 398,828 km (0.115 R)
• M3: 1,561,054 km (0.052 R)
• M4: 2,286,603 km (0.097 R)
• M5: 2,823,211 km (0.067 R)
• M6: 3,916,771 km (0.094 R)
• M7: 4,768,582 km (0.081 R)
• M8: 5,268,687 km (0.109 R)
• M9: 6,761,225 km (0.094 R)
• M10: 8,857,241 km (0.113 R)
• M11: 12,512,366 km (0.073 R)
• M12: 15,253,448 km (0.079 R)
• M13: 29,248,328 km (0.108 R)
• M14: 30,123,027 km (0.097 R)
• M15: 31,316,369 km (0.119 R)
• M16: 38,332,360 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 794.9

Radius: 6.6

Gravity: 18.25 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.35 AU - 9.37 AU

Year: 15211 Days

Day: 24.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 66,619,924 km

• M1: 82,578 km (0.118 R)
• M2: 325,076 km (0.077 R)
• M3: 567,874 km (0.054 R)
• M4: 1,001,857 km (0.085 R)
• M5: 1,265,149 km (0.045 R)
• M6: 1,527,095 km (0.091 R)
• M7: 3,849,602 km (0.097 R)
• M8: 4,535,059 km (0.078 R)
• M9: 5,483,809 km (0.109 R)
• M10: 5,711,497 km (0.102 R)
• M11: 5,985,112 km (0.111 R)
• M12: 6,729,062 km (0.107 R)
• M13: 8,299,839 km (0.108 R)
• M14: 11,518,587 km (0.106 R)
• M15: 12,665,704 km (0.101 R)
• M16: 16,093,889 km (0.057 R)
• M17: 17,038,599 km (0.11 R)
• M18: 18,270,837 km (0.109 R)
• M19: 21,656,536 km (0.12 R)
• M20: 29,870,955 km (0.102 R)
• M21: 32,146,039 km (0.111 R)
• M22: 33,894,539 km (0.091 R)
• M23: 34,792,276 km (0.084 R)
• M24: 35,574,074 km (0.083 R)
• M25: 40,944,638 km (0.112 R)
• M26: 44,963,585 km (0.111 R)
• M27: 45,735,659 km (0.087 R)
• M28: 49,893,134 km (0.08 R)
• M29: 52,914,712 km (0.073 R)
• M30: 58,400,316 km (0.05 R)
• M31: 66,221,442 km (0.119 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 294 - 15,834 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit