🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.04 AU - 1.04 AU

Year: 395 Days

Day: 36.1 Hours

Environment

Temp: 18 °C

Axial Tilt: 34.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.41 AU - 1.87 AU

Year: 783 Days

Day: 45.9 Hours

Environment

Temp: -60 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.4

Radius: 13.1

Gravity: 2.82 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 6.29 AU - 6.85 AU

Year: 6278 Days

Day: 9.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 51,440,838 km

• M1: 193,131 km (0.09 R)
• M2: 649,255 km (0.097 R)
• M3: 1,081,144 km (0.104 R)
• M4: 2,139,998 km (0.05 R)
• M5: 2,961,439 km (0.096 R)
• M6: 3,373,731 km (0.118 R)
• M7: 4,076,841 km (0.096 R)
• M8: 5,483,809 km (0.044 R)
• M9: 6,049,139 km (0.111 R)
• M10: 6,620,454 km (0.118 R)
• M11: 8,019,942 km (0.116 R)
• M12: 8,909,301 km (0.117 R)
• M13: 12,724,346 km (0.105 R)
• M14: 13,879,990 km (0.12 R)
• M15: 14,707,116 km (0.032 R)
• M16: 15,219,190 km (0.106 R)
• M17: 16,039,136 km (0.107 R)
• M18: 16,642,763 km (0.037 R)
• M19: 23,617,614 km (0.107 R)
• M20: 26,596,557 km (0.062 R)
• M21: 27,357,411 km (0.098 R)
• M22: 27,872,626 km (0.107 R)
• M23: 30,271,877 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.9

Radius: 11

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 8.99 AU - 11.19 AU

Year: 11948 Days

Day: 10.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,440,838 km

• M1: 136,882 km (0.11 R)
• M2: 531,820 km (0.05 R)
• M3: 1,216,380 km (0.105 R)
• M4: 1,787,844 km (0.117 R)
• M5: 2,622,002 km (0.101 R)
• M6: 3,815,942 km (0.119 R)
• M7: 4,259,949 km (0.114 R)
• M8: 6,528,750 km (0.112 R)
• M9: 7,166,187 km (0.086 R)
• M10: 8,280,392 km (0.109 R)
• M11: 10,419,791 km (0.028 R)
• M12: 12,904,462 km (0.068 R)
• M13: 13,289,078 km (0.097 R)
• M14: 14,081,498 km (0.113 R)
• M15: 16,010,712 km (0.084 R)
• M16: 17,104,273 km (0.05 R)
• M17: 19,368,436 km (0.101 R)
• M18: 20,684,150 km (0.098 R)
• M19: 21,135,786 km (0.098 R)
• M20: 21,902,923 km (0.069 R)
• M21: 26,020,605 km (0.077 R)
• M22: 29,192,229 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.7

Radius: 14.9

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 9.3 AU - 11.02 AU

Year: 12072 Days

Day: 10.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,440,838 km

• M1: 185,352 km (0.082 R)
• M2: 3,237,148 km (0.08 R)
• M3: 4,365,415 km (0.086 R)
• M4: 4,897,086 km (0.106 R)
• M5: 8,550,565 km (0.118 R)
• M6: 10,279,767 km (0.103 R)
• M7: 11,119,011 km (0.108 R)
• M8: 13,664,270 km (0.097 R)
• M9: 16,647,401 km (0.036 R)
• M10: 18,103,287 km (0.119 R)
• M11: 18,862,496 km (0.112 R)
• M12: 19,960,844 km (0.074 R)
• M13: 22,805,896 km (0.104 R)
• M14: 23,334,575 km (0.085 R)
• M15: 26,681,079 km (0.096 R)
• M16: 31,407,175 km (0.104 R)
• M17: 33,061,728 km (0.111 R)
• M18: 35,357,307 km (0.118 R)
• M19: 35,828,840 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 854.3

Radius: 10.9

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 9.05 AU - 12.67 AU

Year: 13341 Days

Day: 5.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,440,838 km

• M1: 135,536 km (0.083 R)
• M2: 543,489 km (0.049 R)
• M3: 894,745 km (0.092 R)
• M4: 1,419,085 km (0.079 R)
• M5: 2,787,756 km (0.06 R)
• M6: 5,708,056 km (0.073 R)
• M7: 6,129,623 km (0.079 R)
• M8: 6,490,004 km (0.075 R)
• M9: 9,529,833 km (0.063 R)
• M10: 16,186,490 km (0.112 R)
• M11: 18,073,068 km (0.087 R)
• M12: 21,627,963 km (0.088 R)
• M13: 30,086,825 km (0.084 R)
• M14: 36,852,089 km (0.106 R)
• M15: 38,587,574 km (0.113 R)
• M16: 50,808,374 km (0.087 R)
• M17: 51,298,755 km (0.116 R)
• M18: 61,042,364 km (0.09 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 783.1

Radius: 6.6

Gravity: 17.98 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 10.55 AU - 15.53 AU

Year: 17554 Days

Day: 19.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 51,440,838 km

• M1: 82,877 km (0.068 R)
• M2: 369,357 km (0.106 R)
• M3: 747,092 km (0.106 R)
• M4: 1,127,370 km (0.049 R)
• M5: 2,315,925 km (0.084 R)
• M6: 2,652,819 km (0.116 R)
• M7: 3,099,668 km (0.12 R)
• M8: 5,874,260 km (0.097 R)
• M9: 7,889,642 km (0.113 R)
• M10: 8,548,322 km (0.08 R)
• M11: 8,758,207 km (0.101 R)
• M12: 9,079,544 km (0.067 R)
• M13: 9,632,607 km (0.062 R)
• M14: 10,623,842 km (0.109 R)
• M15: 11,300,474 km (0.106 R)
• M16: 17,444,458 km (0.063 R)
• M17: 19,996,448 km (0.051 R)
• M18: 20,836,590 km (0.082 R)
• M19: 21,313,209 km (0.089 R)
• M20: 24,222,887 km (0.047 R)
• M21: 24,962,948 km (0.097 R)
• M22: 29,963,406 km (0.085 R)
• M23: 32,569,401 km (0.097 R)
• M24: 35,592,625 km (0.103 R)
• M25: 36,548,705 km (0.066 R)
• M26: 37,521,689 km (0.098 R)
• M27: 41,287,068 km (0.108 R)
• M28: 44,979,592 km (0.069 R)
• M29: 46,419,172 km (0.095 R)
• M30: 47,395,897 km (0.076 R)
• M31: 47,889,270 km (0.05 R)
• M32: 49,053,890 km (0.108 R)
• M33: 49,390,036 km (0.062 R)
• M34: 52,837,070 km (0.07 R)
• M35: 54,980,359 km (0.08 R)
• M36: 69,703,482 km (0.101 R)
• M37: 72,062,042 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.1

Radius: 7.5

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 16.87 AU - 17.99 AU

Year: 27127 Days

Day: 19.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 51,440,838 km

• M1: 93,199 km (0.047 R)
• M2: 348,413 km (0.091 R)
• M3: 587,471 km (0.058 R)
• M4: 883,675 km (0.104 R)
• M5: 1,485,656 km (0.045 R)
• M6: 1,770,491 km (0.11 R)
• M7: 2,244,267 km (0.114 R)
• M8: 2,523,566 km (0.077 R)
• M9: 3,325,112 km (0.094 R)
• M10: 3,565,067 km (0.108 R)
• M11: 3,914,079 km (0.091 R)
• M12: 4,355,841 km (0.081 R)
• M13: 4,680,917 km (0.055 R)
• M14: 6,416,851 km (0.069 R)
• M15: 9,227,945 km (0.106 R)
• M16: 10,577,766 km (0.118 R)
• M17: 15,743,530 km (0.097 R)
• M18: 17,843,136 km (0.094 R)
• M19: 19,055,178 km (0.053 R)
• M20: 19,730,014 km (0.043 R)
• M21: 20,023,974 km (0.072 R)
• M22: 28,238,094 km (0.104 R)
• M23: 33,913,239 km (0.113 R)
• M24: 44,533,491 km (0.044 R)
• M25: 49,951,776 km (0.075 R)
• M26: 51,233,232 km (0.054 R)
• M27: 57,371,531 km (0.071 R)
• M28: 58,979,260 km (0.068 R)
• M29: 63,768,336 km (0.078 R)
• M30: 66,586,760 km (0.072 R)
• M31: 70,853,740 km (0.063 R)
• M32: 76,258,412 km (0.106 R)
• M33: 78,445,982 km (0.102 R)
• M34: 80,176,081 km (0.111 R)
• M35: 85,518,820 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.4

Radius: 5.9

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 16.88 AU - 20.76 AU

Year: 30436 Days

Day: 16.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 51,440,838 km

• M1: 74,350 km (0.111 R)
• M2: 291,716 km (0.076 R)
• M3: 503,098 km (0.088 R)
• M4: 925,113 km (0.036 R)
• M5: 1,339,200 km (0.117 R)
• M6: 1,678,937 km (0.105 R)
• M7: 2,675,259 km (0.117 R)
• M8: 3,562,075 km (0.049 R)
• M9: 4,301,537 km (0.098 R)
• M10: 4,976,074 km (0.081 R)
• M11: 5,271,530 km (0.037 R)
• M12: 7,008,211 km (0.118 R)
• M13: 7,506,372 km (0.102 R)
• M14: 8,998,013 km (0.111 R)
• M15: 10,095,762 km (0.087 R)
• M16: 11,561,671 km (0.109 R)
• M17: 12,375,035 km (0.102 R)
• M18: 15,522,873 km (0.096 R)
• M19: 15,941,598 km (0.049 R)
• M20: 22,711,650 km (0.108 R)
• M21: 23,615,819 km (0.072 R)
• M22: 31,065,943 km (0.118 R)
• M23: 38,147,906 km (0.108 R)
• M24: 43,011,333 km (0.068 R)
• M25: 43,975,640 km (0.12 R)
• M26: 46,665,709 km (0.103 R)
• M27: 47,391,409 km (0.114 R)
• M28: 50,217,911 km (0.091 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 13,411 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit