🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.5

Radius: 12.5

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.44 AU - 0.68 AU

Year: 289 Days

Day: 15 Hours

Environment

Temp: -153 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,329,122 km

• M1: 155,432 km (0.076 R)
• M2: 638,185 km (0.059 R)
• M3: 1,041,351 km (0.097 R)
• M4: 1,915,451 km (0.116 R)
• M5: 2,448,917 km (0.068 R)
• M6: 2,839,667 km (0.107 R)
• M7: 3,483,835 km (0.097 R)
• M8: 3,887,749 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.9

Radius: 14.3

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.75 AU - 0.99 AU

Year: 560 Days

Day: 8.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,329,122 km

• M1: 177,872 km (0.111 R)
• M2: 664,514 km (0.087 R)
• M3: 1,160,131 km (0.074 R)
• M4: 1,709,904 km (0.073 R)
• M5: 2,174,555 km (0.069 R)
• M6: 2,664,787 km (0.047 R)
• M7: 3,796,495 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.6

Radius: 12.1

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.8 AU - 1.14 AU

Year: 659 Days

Day: 7.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,329,122 km

• M1: 150,495 km (0.04 R)
• M2: 574,605 km (0.069 R)
• M3: 1,009,486 km (0.032 R)
• M4: 1,624,034 km (0.034 R)
• M5: 2,284,359 km (0.08 R)
• M6: 3,104,904 km (0.078 R)
• M7: 4,627,511 km (0.098 R)
• M8: 5,080,493 km (0.076 R)
• M9: 5,471,393 km (0.081 R)
• M10: 6,234,042 km (0.109 R)
• M11: 7,219,444 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.6

Radius: 13.9

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1 AU - 1.12 AU

Year: 753 Days

Day: 12.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,329,122 km

• M1: 172,935 km (0.114 R)
• M2: 706,551 km (0.047 R)
• M3: 1,185,862 km (0.092 R)
• M4: 1,754,035 km (0.077 R)
• M5: 2,636,363 km (0.099 R)
• M6: 3,149,933 km (0.084 R)
• M7: 4,233,769 km (0.082 R)
• M8: 5,413,498 km (0.112 R)
• M9: 6,483,422 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.2

Radius: 10.4

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.96 AU - 1.34 AU

Year: 851 Days

Day: 14.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,329,122 km

• M1: 129,402 km (0.111 R)
• M2: 504,444 km (0.045 R)
• M3: 871,557 km (0.108 R)
• M4: 1,197,830 km (0.106 R)
• M5: 1,623,286 km (0.067 R)
• M6: 2,083,150 km (0.054 R)
• M7: 3,056,284 km (0.078 R)
• M8: 3,436,562 km (0.091 R)
• M9: 4,036,899 km (0.093 R)
• M10: 5,630,265 km (0.033 R)
• M11: 6,145,630 km (0.105 R)
• M12: 6,818,073 km (0.047 R)
• M13: 7,271,055 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.8

Radius: 9.3

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.76 AU - 2.7 AU

Year: 2299 Days

Day: 7.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 49.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 72,329,122 km

• M1: 115,639 km (0.101 R)
• M2: 410,497 km (0.095 R)
• M3: 708,645 km (0.107 R)
• M4: 1,099,245 km (0.117 R)
• M5: 1,395,150 km (0.101 R)
• M6: 2,342,104 km (0.073 R)
• M7: 3,775,850 km (0.063 R)
• M8: 4,403,713 km (0.098 R)
• M9: 5,099,642 km (0.111 R)
• M10: 6,114,065 km (0.116 R)
• M11: 6,655,908 km (0.115 R)
• M12: 7,062,366 km (0.1 R)
• M13: 8,289,068 km (0.025 R)
• M14: 11,348,494 km (0.079 R)
• M15: 11,811,649 km (0.109 R)
• M16: 16,224,039 km (0.065 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 897.5

Radius: 5.7

Gravity: 27.62 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 5.58 AU - 6.88 AU

Year: 10734 Days

Day: 24.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 72,329,122 km

• M1: 72,256 km (0.036 R)
• M2: 380,577 km (0.077 R)
• M3: 586,723 km (0.089 R)
• M4: 839,543 km (0.109 R)
• M5: 1,163,871 km (0.12 R)
• M6: 1,904,231 km (0.063 R)
• M7: 3,745,931 km (0.042 R)
• M8: 4,436,923 km (0.063 R)
• M9: 4,845,026 km (0.116 R)
• M10: 5,808,736 km (0.114 R)
• M11: 6,258,577 km (0.119 R)
• M12: 7,312,494 km (0.069 R)
• M13: 8,246,283 km (0.106 R)
• M14: 9,009,382 km (0.087 R)
• M15: 9,509,488 km (0.075 R)
• M16: 9,818,407 km (0.055 R)
• M17: 10,187,166 km (0.099 R)
• M18: 11,291,797 km (0.101 R)
• M19: 12,413,183 km (0.088 R)
• M20: 15,431,768 km (0.095 R)
• M21: 16,074,740 km (0.069 R)
• M22: 26,331,469 km (0.12 R)
• M23: 26,533,426 km (0.049 R)
• M24: 28,717,406 km (0.086 R)
• M25: 30,906,022 km (0.068 R)
• M26: 40,909,183 km (0.083 R)
• M27: 43,111,264 km (0.089 R)
• M28: 45,536,245 km (0.111 R)
• M29: 47,749,995 km (0.06 R)
• M30: 49,880,119 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 739.9

Radius: 5.4

Gravity: 25.37 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 8.32 AU - 9.16 AU

Year: 17835 Days

Day: 23.8 Hours

Environment

Temp: -230 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 72,329,122 km

• M1: 67,169 km (0.098 R)
• M2: 261,198 km (0.119 R)
• M3: 474,674 km (0.092 R)
• M4: 795,412 km (0.047 R)
• M5: 981,212 km (0.077 R)
• M6: 1,793,379 km (0.084 R)
• M7: 2,390,873 km (0.07 R)
• M8: 3,060,324 km (0.03 R)
• M9: 3,581,074 km (0.1 R)
• M10: 4,867,466 km (0.11 R)
• M11: 6,349,532 km (0.098 R)
• M12: 6,784,563 km (0.086 R)
• M13: 7,146,889 km (0.115 R)
• M14: 7,426,786 km (0.098 R)
• M15: 8,568,667 km (0.11 R)
• M16: 10,052,977 km (0.046 R)
• M17: 11,509,163 km (0.068 R)
• M18: 13,100,435 km (0.098 R)
• M19: 14,832,928 km (0.074 R)
• M20: 16,957,966 km (0.116 R)
• M21: 17,964,460 km (0.069 R)
• M22: 18,222,217 km (0.116 R)
• M23: 37,483,093 km (0.119 R)
• M24: 41,087,654 km (0.069 R)
• M25: 42,136,783 km (0.099 R)
• M26: 45,550,457 km (0.089 R)
• M27: 46,190,287 km (0.042 R)
• M28: 48,643,244 km (0.115 R)
• M29: 55,970,547 km (0.068 R)
• M30: 59,895,397 km (0.034 R)
• M31: 64,802,357 km (0.117 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 531 - 12,860 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit