🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.5

Radius: 8.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.73 AU - 0.97 AU

Year: 532 Days

Day: 13.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 57,577,883 km

• M1: 109,655 km (0.092 R)
• M2: 589,565 km (0.073 R)
• M3: 1,358,648 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 813.3

Radius: 9.8

Gravity: 8.47 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.18 AU - 1.42 AU

Year: 1005 Days

Day: 9.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,577,883 km

• M1: 122,670 km (0.112 R)
• M2: 445,203 km (0.115 R)
• M3: 1,171,351 km (0.055 R)
• M4: 1,830,629 km (0.084 R)
• M5: 2,152,863 km (0.113 R)
• M6: 2,572,934 km (0.107 R)
• M7: 3,033,845 km (0.045 R)
• M8: 3,444,491 km (0.056 R)
• M9: 3,764,930 km (0.118 R)
• M10: 4,360,778 km (0.057 R)
• M11: 4,961,264 km (0.071 R)
• M12: 5,271,679 km (0.078 R)
• M13: 5,996,481 km (0.086 R)
• M14: 6,622,997 km (0.118 R)
• M15: 7,024,368 km (0.105 R)
• M16: 9,077,898 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85.8

Radius: 8.2

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 1.48 AU - 2.08 AU

Year: 1611 Days

Day: 10 Hours

Environment

Temp: -193 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,577,883 km

• M1: 103,223 km (0.112 R)
• M2: 396,883 km (0.037 R)
• M3: 731,234 km (0.086 R)
• M4: 1,460,225 km (0.118 R)
• M5: 1,953,599 km (0.109 R)
• M6: 2,512,496 km (0.084 R)
• M7: 3,018,885 km (0.07 R)
• M8: 3,820,879 km (0.05 R)
• M9: 5,002,104 km (0.114 R)
• M10: 6,026,251 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.3

Radius: 13.4

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.43 AU - 2.19 AU

Year: 1652 Days

Day: 8.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,577,883 km

• M1: 166,951 km (0.119 R)
• M2: 720,463 km (0.044 R)
• M3: 1,140,983 km (0.085 R)
• M4: 1,753,885 km (0.06 R)
• M5: 2,337,018 km (0.105 R)
• M6: 3,455,262 km (0.111 R)
• M7: 4,381,422 km (0.104 R)
• M8: 5,008,686 km (0.097 R)
• M9: 5,764,904 km (0.067 R)
• M10: 7,067,602 km (0.087 R)
• M11: 7,759,941 km (0.078 R)
• M12: 8,650,048 km (0.081 R)
• M13: 9,410,304 km (0.03 R)
• M14: 11,357,770 km (0.107 R)
• M15: 12,192,077 km (0.112 R)
• M16: 12,904,761 km (0.051 R)
• M17: 15,120,455 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.9

Radius: 14.6

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.22 AU - 2.76 AU

Year: 2665 Days

Day: 9.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,577,883 km

• M1: 188,643 km (0.101 R)
• M2: 720,314 km (0.096 R)
• M3: 1,357,002 km (0.09 R)
• M4: 2,069,238 km (0.051 R)
• M5: 2,973,258 km (0.088 R)
• M6: 3,903,308 km (0.108 R)
• M7: 4,925,061 km (0.112 R)
• M8: 5,796,917 km (0.109 R)
• M9: 9,473,884 km (0.095 R)
• M10: 10,385,982 km (0.096 R)
• M11: 12,253,412 km (0.104 R)
• M12: 15,180,893 km (0.1 R)
• M13: 15,641,654 km (0.077 R)
• M14: 16,699,012 km (0.065 R)
• M15: 18,373,760 km (0.029 R)
• M16: 18,956,145 km (0.085 R)
• M17: 19,550,946 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.2

Radius: 14.3

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.24 AU - 3.28 AU

Year: 3110 Days

Day: 14.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,577,883 km

• M1: 177,872 km (0.111 R)
• M2: 739,911 km (0.092 R)
• M3: 1,243,757 km (0.073 R)
• M4: 1,738,926 km (0.059 R)
• M5: 2,338,364 km (0.104 R)
• M6: 2,868,539 km (0.119 R)
• M7: 3,775,551 km (0.08 R)
• M8: 4,443,057 km (0.077 R)
• M9: 7,244,277 km (0.12 R)
• M10: 7,833,692 km (0.118 R)
• M11: 8,961,062 km (0.114 R)
• M12: 11,712,915 km (0.098 R)
• M13: 13,185,706 km (0.094 R)
• M14: 13,719,621 km (0.075 R)
• M15: 15,355,174 km (0.068 R)
• M16: 17,520,304 km (0.101 R)
• M17: 21,106,614 km (0.047 R)
• M18: 21,570,218 km (0.093 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.8

Radius: 11.5

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.27 AU - 3.63 AU

Year: 3437 Days

Day: 5.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,577,883 km

• M1: 143,315 km (0.118 R)
• M2: 548,127 km (0.111 R)
• M3: 960,718 km (0.103 R)
• M4: 1,379,442 km (0.102 R)
• M5: 2,236,787 km (0.065 R)
• M6: 2,831,140 km (0.105 R)
• M7: 3,772,559 km (0.117 R)
• M8: 4,465,496 km (0.054 R)
• M9: 5,004,198 km (0.089 R)
• M10: 5,841,498 km (0.107 R)
• M11: 6,487,162 km (0.061 R)
• M12: 7,090,490 km (0.093 R)
• M13: 8,814,905 km (0.09 R)
• M14: 12,071,651 km (0.083 R)
• M15: 12,852,103 km (0.046 R)
• M16: 14,322,500 km (0.098 R)
• M17: 17,540,201 km (0.101 R)
• M18: 17,925,266 km (0.118 R)
• M19: 18,372,115 km (0.118 R)
• M20: 19,114,120 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.8

Radius: 13.5

Gravity: 0.31 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 2.65 AU - 3.69 AU

Year: 3828 Days

Day: 13.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 141.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,577,883 km

• M1: 171,439 km (0.116 R)
• M2: 641,176 km (0.052 R)
• M3: 1,308,981 km (0.111 R)
• M4: 1,738,178 km (0.083 R)
• M5: 2,667,629 km (0.071 R)
• M6: 3,301,924 km (0.112 R)
• M7: 4,084,770 km (0.117 R)
• M8: 5,518,366 km (0.098 R)
• M9: 6,974,402 km (0.053 R)
• M10: 8,026,225 km (0.108 R)
• M11: 8,453,925 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 885.7

Radius: 6.7

Gravity: 19.73 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 6.92 AU - 8.12 AU

Year: 13987 Days

Day: 16.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,577,883 km

• M1: 84,074 km (0.107 R)
• M2: 415,284 km (0.054 R)
• M3: 628,909 km (0.057 R)
• M4: 846,275 km (0.115 R)
• M5: 1,152,203 km (0.114 R)
• M6: 1,970,653 km (0.06 R)
• M7: 2,343,151 km (0.104 R)
• M8: 3,076,031 km (0.04 R)
• M9: 3,495,504 km (0.113 R)
• M10: 4,480,755 km (0.053 R)
• M11: 4,950,343 km (0.08 R)
• M12: 5,378,642 km (0.078 R)
• M13: 6,066,792 km (0.09 R)
• M14: 6,308,841 km (0.034 R)
• M15: 6,599,211 km (0.105 R)
• M16: 6,812,238 km (0.1 R)
• M17: 7,617,075 km (0.044 R)
• M18: 9,794,023 km (0.099 R)
• M19: 12,941,861 km (0.079 R)
• M20: 13,479,516 km (0.074 R)
• M21: 14,242,764 km (0.059 R)
• M22: 15,329,593 km (0.04 R)
• M23: 17,585,978 km (0.083 R)
• M24: 19,877,219 km (0.119 R)
• M25: 20,143,503 km (0.03 R)
• M26: 25,876,841 km (0.067 R)
• M27: 27,054,027 km (0.059 R)
• M28: 28,154,768 km (0.118 R)
• M29: 33,229,427 km (0.054 R)
• M30: 33,604,618 km (0.114 R)
• M31: 34,109,362 km (0.114 R)
• M32: 35,263,360 km (0.103 R)
• M33: 44,230,854 km (0.12 R)
• M34: 52,042,556 km (0.062 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 509.8

Radius: 3.5

Gravity: 41.62 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 6.69 AU - 9.25 AU

Year: 15261 Days

Day: 24.8 Hours

Environment

Temp: -222 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,577,883 km

• M1: 45,179 km (0.041 R)
• M2: 237,711 km (0.093 R)
• M3: 899,981 km (0.102 R)
• M4: 1,475,933 km (0.109 R)
• M5: 1,612,515 km (0.056 R)
• M6: 1,741,020 km (0.057 R)
• M7: 2,092,425 km (0.078 R)
• M8: 2,284,958 km (0.111 R)
• M9: 3,725,735 km (0.074 R)
• M10: 5,978,829 km (0.118 R)
• M11: 6,132,017 km (0.09 R)
• M12: 6,566,748 km (0.054 R)
• M13: 6,895,564 km (0.119 R)
• M14: 9,985,957 km (0.036 R)
• M15: 10,642,542 km (0.091 R)
• M16: 12,101,869 km (0.029 R)
• M17: 14,498,427 km (0.042 R)
• M18: 15,916,914 km (0.09 R)
• M19: 17,895,795 km (0.102 R)
• M20: 20,203,791 km (0.107 R)
• M21: 21,787,733 km (0.119 R)
• M22: 28,952,274 km (0.106 R)
• M23: 33,780,246 km (0.104 R)
• M24: 38,060,840 km (0.082 R)
• M25: 39,118,048 km (0.117 R)
• M26: 39,653,908 km (0.09 R)
• M27: 41,846,414 km (0.078 R)
• M28: 44,407,978 km (0.116 R)
• M29: 47,526,196 km (0.043 R)
• M30: 49,372,084 km (0.094 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 17,637 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit