🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393

Radius: 9.9

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.57 AU - 0.63 AU

Year: 321 Days

Day: 11.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 58,889,610 km

• M1: 123,119 km (0.117 R)
• M2: 507,586 km (0.099 R)
• M3: 915,539 km (0.118 R)
• M4: 1,300,753 km (0.103 R)
• M5: 1,741,469 km (0.096 R)
• M6: 2,171,862 km (0.079 R)
• M7: 2,500,229 km (0.103 R)
• M8: 3,041,325 km (0.094 R)
• M9: 3,518,243 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.9

Radius: 9.5

Gravity: 7.8 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.69 AU - 0.91 AU

Year: 494 Days

Day: 12.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,889,610 km

• M1: 118,182 km (0.108 R)
• M2: 423,960 km (0.1 R)
• M3: 829,670 km (0.051 R)
• M4: 1,211,144 km (0.096 R)
• M5: 1,512,883 km (0.105 R)
• M6: 2,101,850 km (0.075 R)
• M7: 2,554,384 km (0.12 R)
• M8: 3,163,696 km (0.079 R)
• M9: 3,760,442 km (0.046 R)
• M10: 4,270,271 km (0.105 R)
• M11: 5,080,194 km (0.098 R)
• M12: 5,394,350 km (0.045 R)
• M13: 6,246,609 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 780.6

Radius: 13

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.98 AU - 1.18 AU

Year: 775 Days

Day: 8.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,889,610 km

• M1: 161,715 km (0.107 R)
• M2: 708,346 km (0.073 R)
• M3: 1,469,649 km (0.058 R)
• M4: 1,941,780 km (0.112 R)
• M5: 2,460,735 km (0.086 R)
• M6: 3,084,858 km (0.118 R)
• M7: 4,038,544 km (0.1 R)
• M8: 7,166,336 km (0.078 R)
• M9: 7,655,821 km (0.087 R)
• M10: 8,965,251 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807.6

Radius: 11.4

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 1 AU - 1.52 AU

Year: 976 Days

Day: 13.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,889,610 km

• M1: 141,968 km (0.056 R)
• M2: 607,816 km (0.102 R)
• M3: 1,146,368 km (0.094 R)
• M4: 1,710,053 km (0.062 R)
• M5: 2,198,191 km (0.079 R)
• M6: 2,618,112 km (0.03 R)
• M7: 3,024,420 km (0.114 R)
• M8: 3,667,691 km (0.082 R)
• M9: 4,314,103 km (0.099 R)
• M10: 4,683,161 km (0.09 R)
• M11: 5,545,743 km (0.109 R)
• M12: 6,466,069 km (0.098 R)
• M13: 7,336,878 km (0.109 R)
• M14: 7,916,570 km (0.073 R)
• M15: 8,472,475 km (0.092 R)
• M16: 10,113,115 km (0.057 R)
• M17: 10,672,611 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.1

Radius: 8

Gravity: 13.58 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 1.25 AU - 1.55 AU

Year: 1143 Days

Day: 5.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 58,889,610 km

• M1: 99,483 km (0.078 R)
• M2: 357,240 km (0.085 R)
• M3: 637,437 km (0.11 R)
• M4: 991,385 km (0.048 R)
• M5: 1,755,681 km (0.119 R)
• M6: 2,008,800 km (0.042 R)
• M7: 2,878,712 km (0.063 R)
• M8: 3,263,029 km (0.033 R)
• M9: 3,522,431 km (0.112 R)
• M10: 3,945,644 km (0.085 R)
• M11: 4,475,968 km (0.066 R)
• M12: 4,739,261 km (0.119 R)
• M13: 5,214,683 km (0.063 R)
• M14: 6,009,646 km (0.118 R)
• M15: 6,448,117 km (0.083 R)
• M16: 8,704,950 km (0.079 R)
• M17: 9,146,414 km (0.034 R)
• M18: 9,820,801 km (0.05 R)
• M19: 10,364,290 km (0.1 R)
• M20: 10,860,357 km (0.099 R)
• M21: 11,900,062 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.2

Radius: 9.3

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.39 AU - 1.59 AU

Year: 1255 Days

Day: 11.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 58,889,610 km

• M1: 115,789 km (0.118 R)
• M2: 429,047 km (0.055 R)
• M3: 877,242 km (0.081 R)
• M4: 1,568,833 km (0.069 R)
• M5: 1,976,637 km (0.065 R)
• M6: 2,498,284 km (0.097 R)
• M7: 2,957,101 km (0.116 R)
• M8: 3,772,410 km (0.059 R)
• M9: 4,075,196 km (0.11 R)
• M10: 5,359,643 km (0.084 R)
• M11: 5,962,672 km (0.073 R)
• M12: 6,718,889 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.4

Radius: 8.1

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.35 AU - 1.69 AU

Year: 1294 Days

Day: 8.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 58,889,610 km

• M1: 100,679 km (0.032 R)
• M2: 407,654 km (0.12 R)
• M3: 810,372 km (0.087 R)
• M4: 1,233,135 km (0.036 R)
• M5: 1,687,165 km (0.083 R)
• M6: 2,014,036 km (0.086 R)
• M7: 2,351,529 km (0.063 R)
• M8: 2,692,014 km (0.056 R)
• M9: 3,218,598 km (0.101 R)
• M10: 4,931,793 km (0.053 R)
• M11: 5,681,727 km (0.115 R)
• M12: 6,277,127 km (0.086 R)
• M13: 6,611,179 km (0.086 R)
• M14: 6,891,376 km (0.081 R)
• M15: 8,215,167 km (0.037 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.6

Radius: 9.4

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.04 AU - 2.6 AU

Year: 2439 Days

Day: 8.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 58,889,610 km

• M1: 118,631 km (0.105 R)
• M2: 463,305 km (0.087 R)
• M3: 892,950 km (0.105 R)
• M4: 1,659,489 km (0.051 R)
• M5: 2,041,712 km (0.1 R)
• M6: 2,803,464 km (0.101 R)
• M7: 3,198,103 km (0.048 R)
• M8: 3,743,687 km (0.12 R)
• M9: 4,406,854 km (0.116 R)
• M10: 5,372,209 km (0.095 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.8

Radius: 6.2

Gravity: 21.77 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.11 AU - 7.55 AU

Year: 12321 Days

Day: 24.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,889,610 km

• M1: 77,193 km (0.105 R)
• M2: 331,808 km (0.111 R)
• M3: 554,709 km (0.093 R)
• M4: 1,029,533 km (0.112 R)
• M5: 1,381,985 km (0.103 R)
• M6: 2,190,711 km (0.113 R)
• M7: 3,381,361 km (0.053 R)
• M8: 4,403,413 km (0.109 R)
• M9: 4,655,935 km (0.076 R)
• M10: 6,028,645 km (0.098 R)
• M11: 8,063,624 km (0.04 R)
• M12: 9,286,587 km (0.05 R)
• M13: 9,915,496 km (0.083 R)
• M14: 10,350,228 km (0.072 R)
• M15: 12,844,174 km (0.053 R)
• M16: 13,492,232 km (0.117 R)
• M17: 14,229,899 km (0.08 R)
• M18: 17,607,819 km (0.116 R)
• M19: 28,963,943 km (0.081 R)
• M20: 33,101,222 km (0.116 R)
• M21: 43,381,587 km (0.094 R)
• M22: 46,323,130 km (0.042 R)
• M23: 48,150,468 km (0.078 R)
• M24: 56,625,636 km (0.03 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 14,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit