🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.54 AU - 0.74 AU

Year: 331 Days

Day: 22.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 19.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.7

Radius: 14.1

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.88 AU - 1.12 AU

Year: 646 Days

Day: 5 Hours

Environment

Temp: -150 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,876,237 km

• M1: 175,478 km (0.104 R)
• M2: 613,950 km (0.068 R)
• M3: 1,054,815 km (0.066 R)
• M4: 1,584,241 km (0.117 R)
• M5: 2,159,296 km (0.067 R)
• M6: 2,760,081 km (0.095 R)
• M7: 3,267,068 km (0.098 R)
• M8: 4,790,273 km (0.077 R)
• M9: 6,521,570 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.1

Radius: 10.9

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.09 AU - 1.21 AU

Year: 796 Days

Day: 11.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 63,876,237 km

• M1: 135,536 km (0.059 R)
• M2: 502,050 km (0.117 R)
• M3: 1,164,171 km (0.072 R)
• M4: 1,510,340 km (0.05 R)
• M5: 1,880,146 km (0.078 R)
• M6: 2,628,883 km (0.114 R)
• M7: 3,040,128 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 104.1

Radius: 8.9

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.81 AU - 2.71 AU

Year: 2194 Days

Day: 6.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 16.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,876,237 km

• M1: 164,258 km (0.053 R)
• M2: 576,401 km (0.092 R)
• M3: 1,053,019 km (0.079 R)
• M4: 1,518,418 km (0.079 R)
• M5: 1,849,329 km (0.108 R)
• M6: 2,963,235 km (0.056 R)
• M7: 3,485,182 km (0.05 R)
• M8: 4,357,038 km (0.064 R)
• M9: 4,643,368 km (0.09 R)
• M10: 4,924,463 km (0.107 R)
• M11: 6,102,097 km (0.106 R)
• M12: 6,548,198 km (0.114 R)
• M13: 7,673,623 km (0.091 R)
• M14: 8,977,069 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 686.5

Radius: 12.4

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.83 AU - 5.17 AU

Year: 6164 Days

Day: 11.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 63,876,237 km

• M1: 155,283 km (0.114 R)
• M2: 569,519 km (0.098 R)
• M3: 1,024,147 km (0.108 R)
• M4: 1,454,540 km (0.11 R)
• M5: 1,949,111 km (0.12 R)
• M6: 2,451,760 km (0.092 R)
• M7: 2,846,997 km (0.116 R)
• M8: 3,860,971 km (0.095 R)
• M9: 6,627,036 km (0.114 R)
• M10: 7,476,453 km (0.117 R)
• M11: 9,051,868 km (0.046 R)
• M12: 10,325,395 km (0.109 R)
• M13: 11,417,758 km (0.087 R)
• M14: 14,570,982 km (0.113 R)
• M15: 16,948,990 km (0.107 R)
• M16: 18,671,460 km (0.112 R)
• M17: 19,787,759 km (0.115 R)
• M18: 20,727,084 km (0.08 R)
• M19: 21,170,642 km (0.032 R)
• M20: 22,153,201 km (0.049 R)
• M21: 23,086,991 km (0.055 R)
• M22: 24,618,873 km (0.076 R)
• M23: 26,303,644 km (0.061 R)
• M24: 29,995,570 km (0.08 R)
• M25: 33,207,586 km (0.078 R)
• M26: 34,430,399 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.2

Radius: 12.2

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.5 AU - 4.96 AU

Year: 6642 Days

Day: 11.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 104.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,876,237 km

• M1: 151,842 km (0.043 R)
• M2: 641,326 km (0.05 R)
• M3: 1,105,528 km (0.092 R)
• M4: 2,126,384 km (0.102 R)
• M5: 2,779,977 km (0.087 R)
• M6: 4,068,015 km (0.091 R)
• M7: 7,023,321 km (0.067 R)
• M8: 10,945,179 km (0.108 R)
• M9: 12,370,547 km (0.066 R)
• M10: 13,208,146 km (0.11 R)
• M11: 18,172,102 km (0.077 R)
• M12: 18,775,730 km (0.069 R)
• M13: 21,921,324 km (0.117 R)
• M14: 26,497,822 km (0.118 R)
• M15: 27,448,965 km (0.076 R)
• M16: 29,327,765 km (0.054 R)
• M17: 33,042,130 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 651.5

Radius: 6.5

Gravity: 15.42 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 5.15 AU - 8.11 AU

Year: 11023 Days

Day: 20.6 Hours

Environment

Temp: -216 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,876,237 km

• M1: 81,531 km (0.119 R)
• M2: 336,446 km (0.106 R)
• M3: 819,348 km (0.076 R)
• M4: 1,080,246 km (0.09 R)
• M5: 1,464,114 km (0.054 R)
• M6: 2,482,876 km (0.104 R)
• M7: 2,750,357 km (0.106 R)
• M8: 3,828,060 km (0.117 R)
• M9: 4,214,471 km (0.098 R)
• M10: 4,687,649 km (0.058 R)
• M11: 5,032,921 km (0.075 R)
• M12: 5,294,717 km (0.094 R)
• M13: 6,358,209 km (0.088 R)
• M14: 6,980,237 km (0.063 R)
• M15: 7,306,210 km (0.064 R)
• M16: 9,332,214 km (0.086 R)
• M17: 11,876,425 km (0.056 R)
• M18: 13,000,055 km (0.092 R)
• M19: 13,682,072 km (0.038 R)
• M20: 14,128,322 km (0.12 R)
• M21: 15,941,000 km (0.048 R)
• M22: 16,722,050 km (0.083 R)
• M23: 17,158,726 km (0.084 R)
• M24: 17,903,275 km (0.084 R)
• M25: 22,475,584 km (0.111 R)
• M26: 23,456,946 km (0.073 R)
• M27: 24,653,131 km (0.119 R)
• M28: 29,107,856 km (0.118 R)
• M29: 30,921,431 km (0.066 R)
• M30: 35,245,408 km (0.117 R)
• M31: 36,083,605 km (0.111 R)
• M32: 36,934,966 km (0.12 R)
• M33: 39,826,693 km (0.067 R)
• M34: 47,781,859 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 856.9

Radius: 4.8

Gravity: 37.19 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 5.58 AU - 7.98 AU

Year: 11399 Days

Day: 21.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 92.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 63,876,237 km

• M1: 59,690 km (0.107 R)
• M2: 336,296 km (0.103 R)
• M3: 490,083 km (0.044 R)
• M4: 651,050 km (0.041 R)
• M5: 818,600 km (0.095 R)
• M6: 1,155,494 km (0.094 R)
• M7: 2,642,796 km (0.109 R)
• M8: 3,771,961 km (0.074 R)
• M9: 3,939,810 km (0.106 R)
• M10: 4,112,595 km (0.099 R)
• M11: 5,720,174 km (0.03 R)
• M12: 7,794,348 km (0.1 R)
• M13: 8,206,191 km (0.119 R)
• M14: 10,376,258 km (0.109 R)
• M15: 11,563,467 km (0.098 R)
• M16: 12,220,052 km (0.099 R)
• M17: 12,526,578 km (0.08 R)
• M18: 16,171,679 km (0.091 R)
• M19: 17,297,104 km (0.119 R)
• M20: 18,715,442 km (0.061 R)
• M21: 22,780,614 km (0.106 R)
• M22: 23,810,446 km (0.093 R)
• M23: 25,165,503 km (0.104 R)
• M24: 26,468,950 km (0.118 R)
• M25: 34,878,295 km (0.067 R)
• M26: 35,993,397 km (0.096 R)
• M27: 37,132,136 km (0.107 R)
• M28: 38,950,798 km (0.076 R)
• M29: 39,347,980 km (0.047 R)
• M30: 43,187,409 km (0.115 R)
• M31: 43,613,015 km (0.11 R)
• M32: 43,898,298 km (0.053 R)
• M33: 46,373,694 km (0.097 R)
• M34: 53,209,270 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 590.5

Radius: 7.8

Gravity: 9.71 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 8.2 AU - 9.2 AU

Year: 16569 Days

Day: 23.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 63,876,237 km

• M1: 97,089 km (0.083 R)
• M2: 494,271 km (0.102 R)
• M3: 862,881 km (0.092 R)
• M4: 1,257,221 km (0.045 R)
• M5: 1,604,736 km (0.105 R)
• M6: 2,071,482 km (0.109 R)
• M7: 3,406,792 km (0.084 R)
• M8: 4,117,981 km (0.11 R)
• M9: 4,924,313 km (0.088 R)
• M10: 6,025,952 km (0.116 R)
• M11: 6,345,642 km (0.105 R)
• M12: 7,062,665 km (0.079 R)
• M13: 7,646,546 km (0.079 R)
• M14: 9,013,272 km (0.052 R)
• M15: 9,273,422 km (0.078 R)
• M16: 10,478,433 km (0.038 R)
• M17: 15,893,427 km (0.111 R)
• M18: 18,684,475 km (0.108 R)
• M19: 27,874,122 km (0.075 R)
• M20: 36,302,167 km (0.091 R)
• M21: 37,764,337 km (0.042 R)
• M22: 43,412,704 km (0.115 R)
• M23: 47,685,368 km (0.088 R)
• M24: 52,902,145 km (0.068 R)
• M25: 54,435,075 km (0.102 R)
• M26: 55,822,445 km (0.116 R)
• M27: 63,494,273 km (0.101 R)
• M28: 63,876,196 km (0.074 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 539 - 10,579 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit