🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.8

Radius: 8.7

Gravity: 6.44 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.42 AU - 0.66 AU

Year: 279 Days

Day: 13.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,525,018 km

• M1: 108,159 km (0.042 R)
• M2: 434,283 km (0.067 R)
• M3: 745,147 km (0.103 R)
• M4: 1,034,020 km (0.069 R)
• M5: 1,591,572 km (0.103 R)
• M6: 1,974,393 km (0.086 R)
• M7: 2,834,730 km (0.115 R)
• M8: 3,411,579 km (0.066 R)
• M9: 3,689,682 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.6

Radius: 13.9

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.66 AU - 0.96 AU

Year: 512 Days

Day: 5.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 25,525,018 km

• M1: 172,935 km (0.105 R)
• M2: 623,823 km (0.077 R)
• M3: 1,694,794 km (0.072 R)
• M4: 2,538,825 km (0.12 R)
• M5: 3,455,860 km (0.098 R)
• M6: 4,507,683 km (0.061 R)
• M7: 4,977,869 km (0.09 R)
• M8: 5,816,964 km (0.088 R)
• M9: 6,531,144 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.4

Radius: 8.6

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.74 AU - 0.9 AU

Year: 522 Days

Day: 7.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 25,525,018 km

• M1: 106,962 km (0.026 R)
• M2: 404,064 km (0.104 R)
• M3: 708,795 km (0.108 R)
• M4: 1,385,127 km (0.062 R)
• M5: 2,351,978 km (0.093 R)
• M6: 2,833,533 km (0.081 R)
• M7: 3,981,248 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903.2

Radius: 10.3

Gravity: 8.51 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 1.08 AU - 1.36 AU

Year: 947 Days

Day: 12.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 25,525,018 km

• M1: 128,355 km (0.117 R)
• M2: 462,257 km (0.111 R)
• M3: 850,464 km (0.082 R)
• M4: 1,199,476 km (0.093 R)
• M5: 3,024,420 km (0.108 R)
• M6: 3,958,808 km (0.11 R)
• M7: 4,431,388 km (0.098 R)
• M8: 4,847,569 km (0.103 R)
• M9: 5,329,574 km (0.067 R)
• M10: 5,654,500 km (0.095 R)
• M11: 6,322,156 km (0.063 R)
• M12: 6,710,063 km (0.058 R)
• M13: 7,065,657 km (0.033 R)
• M14: 7,559,180 km (0.109 R)
• M15: 10,040,261 km (0.044 R)
• M16: 10,633,117 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.4

Radius: 14.8

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.05 AU - 1.55 AU

Year: 1042 Days

Day: 11.4 Hours

Environment

Temp: -193 °C

Axial Tilt: 120.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,525,018 km

• M1: 184,903 km (0.106 R)
• M2: 868,715 km (0.108 R)
• M3: 1,422,377 km (0.118 R)
• M4: 1,921,734 km (0.084 R)
• M5: 2,643,544 km (0.118 R)
• M6: 3,262,131 km (0.064 R)
• M7: 4,007,877 km (0.117 R)
• M8: 5,102,783 km (0.112 R)
• M9: 5,761,164 km (0.07 R)
• M10: 7,085,105 km (0.098 R)
• M11: 7,634,129 km (0.09 R)
• M12: 8,314,799 km (0.078 R)
• M13: 9,341,340 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 458.4

Radius: 11.2

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.03 AU - 3.11 AU

Year: 2896 Days

Day: 12.6 Hours

Environment

Temp: -212 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 25,525,018 km

• M1: 139,276 km (0.11 R)
• M2: 556,504 km (0.072 R)
• M3: 1,061,846 km (0.096 R)
• M4: 1,787,844 km (0.071 R)
• M5: 2,471,058 km (0.098 R)
• M6: 3,320,624 km (0.094 R)
• M7: 4,132,641 km (0.099 R)
• M8: 4,758,708 km (0.113 R)
• M9: 6,096,412 km (0.035 R)
• M10: 6,575,574 km (0.026 R)
• M11: 6,937,302 km (0.1 R)
• M12: 8,983,352 km (0.098 R)
• M13: 9,569,626 km (0.116 R)
• M14: 9,926,417 km (0.119 R)
• M15: 10,403,335 km (0.074 R)
• M16: 11,324,409 km (0.114 R)
• M17: 11,967,979 km (0.092 R)
• M18: 12,593,298 km (0.101 R)
• M19: 17,124,319 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.8

Radius: 9.3

Gravity: 10.61 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 2.41 AU - 2.79 AU

Year: 2947 Days

Day: 9.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 25,525,018 km

• M1: 115,639 km (0.102 R)
• M2: 1,363,285 km (0.101 R)
• M3: 3,061,371 km (0.113 R)
• M4: 3,408,737 km (0.036 R)
• M5: 4,053,504 km (0.114 R)
• M6: 4,382,619 km (0.074 R)
• M7: 4,897,984 km (0.065 R)
• M8: 5,195,684 km (0.037 R)
• M9: 5,505,650 km (0.032 R)
• M10: 5,910,313 km (0.109 R)
• M11: 7,150,329 km (0.114 R)
• M12: 8,068,262 km (0.025 R)
• M13: 8,414,581 km (0.096 R)
• M14: 10,581,357 km (0.086 R)
• M15: 11,080,864 km (0.066 R)
• M16: 12,353,343 km (0.12 R)
• M17: 12,767,430 km (0.061 R)
• M18: 13,238,215 km (0.077 R)
• M19: 13,818,505 km (0.092 R)
• M20: 14,567,691 km (0.065 R)
• M21: 15,186,129 km (0.094 R)
• M22: 17,432,341 km (0.116 R)
• M23: 19,766,217 km (0.115 R)
• M24: 20,588,407 km (0.113 R)
• M25: 21,170,791 km (0.103 R)
• M26: 21,697,825 km (0.08 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.4

Radius: 13

Gravity: 5.77 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 2.72 AU - 2.84 AU

Year: 3258 Days

Day: 14.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 25,525,018 km

• M1: 161,715 km (0.102 R)
• M2: 780,302 km (0.088 R)
• M3: 1,203,216 km (0.097 R)
• M4: 1,748,650 km (0.114 R)
• M5: 2,862,705 km (0.095 R)
• M6: 3,545,918 km (0.09 R)
• M7: 4,592,056 km (0.071 R)
• M8: 5,187,605 km (0.109 R)
• M9: 5,778,218 km (0.118 R)
• M10: 6,324,250 km (0.11 R)
• M11: 6,748,360 km (0.061 R)
• M12: 7,256,394 km (0.082 R)
• M13: 9,239,464 km (0.103 R)
• M14: 11,561,372 km (0.099 R)
• M15: 12,337,336 km (0.102 R)
• M16: 13,050,619 km (0.036 R)
• M17: 14,980,880 km (0.05 R)
• M18: 15,519,134 km (0.099 R)
• M19: 15,958,802 km (0.097 R)
• M20: 16,463,545 km (0.115 R)
• M21: 19,464,478 km (0.061 R)
• M22: 20,760,893 km (0.085 R)
• M23: 22,953,998 km (0.044 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 13,854 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit