🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.2

Radius: 10.8

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.59 AU - 0.59 AU

Year: 302 Days

Day: 8.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 67,813,729 km

• M1: 134,339 km (0.093 R)
• M2: 478,564 km (0.095 R)
• M3: 826,379 km (0.113 R)
• M4: 1,376,749 km (0.12 R)
• M5: 1,737,130 km (0.079 R)
• M6: 2,144,934 km (0.089 R)
• M7: 2,579,366 km (0.107 R)
• M8: 3,103,857 km (0.087 R)
• M9: 3,511,212 km (0.09 R)
• M10: 3,941,754 km (0.039 R)
• M11: 4,314,103 km (0.058 R)
• M12: 4,667,902 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 871

Radius: 11.2

Gravity: 6.94 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.62 AU - 0.68 AU

Year: 349 Days

Day: 14.1 Hours

Environment

Temp: -160 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 67,813,729 km

• M1: 139,425 km (0.111 R)
• M2: 645,664 km (0.098 R)
• M3: 1,173,446 km (0.111 R)
• M4: 1,632,262 km (0.056 R)
• M5: 2,638,757 km (0.09 R)
• M6: 3,025,767 km (0.085 R)
• M7: 3,629,394 km (0.03 R)
• M8: 4,352,999 km (0.11 R)
• M9: 4,852,506 km (0.072 R)
• M10: 5,216,777 km (0.039 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.4

Radius: 8.8

Gravity: 9.25 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 0.59 AU - 0.87 AU

Year: 416 Days

Day: 12.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,813,729 km

• M1: 109,506 km (0.088 R)
• M2: 577,897 km (0.077 R)
• M3: 883,226 km (0.082 R)
• M4: 1,170,753 km (0.106 R)
• M5: 1,604,886 km (0.115 R)
• M6: 1,943,576 km (0.035 R)
• M7: 2,357,363 km (0.114 R)
• M8: 2,675,259 km (0.054 R)
• M9: 3,155,318 km (0.072 R)
• M10: 3,704,193 km (0.091 R)
• M11: 4,245,887 km (0.099 R)
• M12: 4,572,309 km (0.118 R)
• M13: 4,930,746 km (0.053 R)
• M14: 5,275,719 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 861.7

Radius: 12.3

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.48 AU - 1.48 AU

Year: 1201 Days

Day: 6.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 67,813,729 km

• M1: 153,338 km (0.118 R)
• M2: 553,063 km (0.11 R)
• M3: 967,150 km (0.061 R)
• M4: 1,625,530 km (0.098 R)
• M5: 4,081,927 km (0.102 R)
• M6: 4,719,364 km (0.098 R)
• M7: 5,194,038 km (0.092 R)
• M8: 6,102,097 km (0.105 R)
• M9: 8,232,371 km (0.117 R)
• M10: 8,717,666 km (0.091 R)
• M11: 10,321,655 km (0.116 R)
• M12: 11,022,371 km (0.105 R)
• M13: 11,683,295 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865

Radius: 14.9

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.82 AU - 2.88 AU

Year: 2402 Days

Day: 6.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 67,813,729 km

• M1: 185,352 km (0.043 R)
• M2: 817,253 km (0.101 R)
• M3: 1,592,769 km (0.105 R)
• M4: 2,392,818 km (0.111 R)
• M5: 2,863,303 km (0.091 R)
• M6: 3,396,320 km (0.08 R)
• M7: 4,799,399 km (0.047 R)
• M8: 5,557,710 km (0.114 R)
• M9: 6,231,798 km (0.066 R)
• M10: 6,873,125 km (0.093 R)
• M11: 7,620,067 km (0.104 R)
• M12: 10,571,633 km (0.091 R)
• M13: 11,816,736 km (0.108 R)
• M14: 12,583,425 km (0.118 R)
• M15: 13,795,467 km (0.107 R)
• M16: 14,406,275 km (0.097 R)
• M17: 15,884,751 km (0.107 R)
• M18: 17,085,124 km (0.111 R)
• M19: 18,570,631 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 547.1

Radius: 14.5

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.64 AU - 3.86 AU

Year: 3907 Days

Day: 7.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 67,813,729 km

• M1: 180,415 km (0.1 R)
• M2: 869,463 km (0.113 R)
• M3: 1,558,062 km (0.085 R)
• M4: 2,016,729 km (0.064 R)
• M5: 2,506,363 km (0.075 R)
• M6: 3,711,972 km (0.091 R)
• M7: 4,735,072 km (0.118 R)
• M8: 5,613,660 km (0.085 R)
• M9: 6,421,937 km (0.092 R)
• M10: 7,597,029 km (0.052 R)
• M11: 8,587,067 km (0.037 R)
• M12: 9,094,952 km (0.058 R)
• M13: 12,623,218 km (0.062 R)
• M14: 13,667,561 km (0.12 R)
• M15: 15,027,106 km (0.1 R)
• M16: 15,606,050 km (0.108 R)
• M17: 17,722,112 km (0.104 R)
• M18: 18,728,157 km (0.055 R)
• M19: 19,399,253 km (0.106 R)
• M20: 20,724,990 km (0.063 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.6

Radius: 10.7

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 2.52 AU - 4.12 AU

Year: 4034 Days

Day: 14 Hours

Environment

Temp: -205 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 67,813,729 km

• M1: 153,338 km (0.1 R)
• M2: 524,490 km (0.075 R)
• M3: 1,264,102 km (0.051 R)
• M4: 2,335,073 km (0.106 R)
• M5: 2,680,794 km (0.097 R)
• M6: 5,633,856 km (0.108 R)
• M7: 8,362,970 km (0.108 R)
• M8: 8,697,471 km (0.096 R)
• M9: 9,465,057 km (0.095 R)
• M10: 10,126,130 km (0.086 R)
• M11: 11,499,439 km (0.046 R)
• M12: 15,148,131 km (0.116 R)
• M13: 18,868,929 km (0.098 R)
• M14: 19,738,990 km (0.1 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 110.3

Radius: 5.5

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.14 AU - 6.9 AU

Year: 11102 Days

Day: 21 Hours

Environment

Temp: -226 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 67,813,729 km

• M1: 69,264 km (0.089 R)
• M2: 253,718 km (0.117 R)
• M3: 449,093 km (0.094 R)
• M4: 813,962 km (0.077 R)
• M5: 1,647,671 km (0.069 R)
• M6: 1,853,368 km (0.117 R)
• M7: 2,224,670 km (0.084 R)
• M8: 2,626,939 km (0.062 R)
• M9: 3,513,156 km (0.116 R)
• M10: 3,900,316 km (0.111 R)
• M11: 4,558,546 km (0.096 R)
• M12: 5,072,265 km (0.063 R)
• M13: 6,430,315 km (0.118 R)
• M14: 7,448,628 km (0.12 R)
• M15: 9,758,568 km (0.032 R)
• M16: 10,653,164 km (0.111 R)
• M17: 13,253,324 km (0.118 R)
• M18: 16,073,842 km (0.12 R)
• M19: 22,866,633 km (0.081 R)
• M20: 23,086,691 km (0.086 R)
• M21: 23,906,039 km (0.095 R)
• M22: 26,642,034 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.6

Radius: 7.6

Gravity: 10.9 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.38 AU - 8.8 AU

Year: 13944 Days

Day: 15.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 67,813,729 km

• M1: 94,546 km (0.079 R)
• M2: 480,359 km (0.098 R)
• M3: 1,212,341 km (0.114 R)
• M4: 1,841,400 km (0.108 R)
• M5: 2,317,121 km (0.059 R)
• M6: 4,155,829 km (0.065 R)
• M7: 4,940,918 km (0.096 R)
• M8: 7,618,272 km (0.065 R)
• M9: 8,307,319 km (0.106 R)
• M10: 9,188,301 km (0.098 R)
• M11: 10,849,436 km (0.114 R)
• M12: 12,701,308 km (0.109 R)
• M13: 13,018,605 km (0.044 R)
• M14: 25,688,348 km (0.044 R)
• M15: 27,126,881 km (0.053 R)
• M16: 29,164,254 km (0.108 R)
• M17: 30,729,198 km (0.113 R)
• M18: 31,997,489 km (0.086 R)
• M19: 36,392,225 km (0.112 R)
• M20: 36,904,000 km (0.067 R)
• M21: 40,212,356 km (0.115 R)
• M22: 42,148,751 km (0.057 R)
• M23: 48,175,900 km (0.063 R)
• M24: 51,635,201 km (0.053 R)
• M25: 54,753,120 km (0.105 R)
• M26: 55,932,699 km (0.105 R)
• M27: 56,957,295 km (0.102 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.5

Radius: 8

Gravity: 12.23 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 7.22 AU - 9.24 AU

Year: 15745 Days

Day: 21.8 Hours

Environment

Temp: -234 °C

Axial Tilt: 44 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 67,813,729 km

• M1: 99,483 km (0.114 R)
• M2: 376,837 km (0.114 R)
• M3: 649,404 km (0.089 R)
• M4: 1,059,153 km (0.083 R)
• M5: 1,417,589 km (0.097 R)
• M6: 1,909,617 km (0.074 R)
• M7: 2,855,973 km (0.026 R)
• M8: 4,869,560 km (0.102 R)
• M9: 6,106,884 km (0.057 R)
• M10: 8,665,756 km (0.047 R)
• M11: 9,511,283 km (0.119 R)
• M12: 11,182,142 km (0.101 R)
• M13: 11,801,028 km (0.072 R)
• M14: 12,183,400 km (0.078 R)
• M15: 14,946,323 km (0.067 R)
• M16: 16,082,070 km (0.098 R)
• M17: 20,374,332 km (0.114 R)
• M18: 22,733,341 km (0.085 R)
• M19: 23,325,450 km (0.093 R)
• M20: 23,625,393 km (0.097 R)
• M21: 25,373,744 km (0.114 R)
• M22: 27,650,324 km (0.06 R)
• M23: 29,824,430 km (0.094 R)
• M24: 34,509,835 km (0.03 R)
• M25: 37,162,505 km (0.107 R)
• M26: 37,846,167 km (0.085 R)
• M27: 39,380,143 km (0.115 R)
• M28: 41,100,220 km (0.077 R)
• M29: 42,126,312 km (0.113 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 259 - 12,255 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit