🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.8

Radius: 11.5

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.73 AU - 0.75 AU

Year: 418 Days

Day: 10.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,016,493 km

• M1: 143,016 km (0.108 R)
• M2: 592,707 km (0.077 R)
• M3: 966,253 km (0.115 R)
• M4: 1,346,680 km (0.087 R)
• M5: 1,814,024 km (0.031 R)
• M6: 2,236,787 km (0.07 R)
• M7: 2,596,869 km (0.071 R)
• M8: 2,974,604 km (0.109 R)
• M9: 3,448,081 km (0.089 R)
• M10: 4,144,160 km (0.11 R)
• M11: 4,707,695 km (0.11 R)
• M12: 5,147,663 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 807

Radius: 15

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.87 AU - 1.17 AU

Year: 676 Days

Day: 5.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,016,493 km

• M1: 186,549 km (0.106 R)
• M2: 708,196 km (0.104 R)
• M3: 1,237,922 km (0.115 R)
• M4: 1,813,874 km (0.099 R)
• M5: 3,150,830 km (0.094 R)
• M6: 3,665,148 km (0.057 R)
• M7: 4,159,270 km (0.12 R)
• M8: 4,632,298 km (0.078 R)
• M9: 5,124,026 km (0.075 R)
• M10: 5,956,688 km (0.103 R)
• M11: 7,117,268 km (0.089 R)
• M12: 8,082,923 km (0.038 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 972

Radius: 15

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.61 AU - 2.53 AU

Year: 1954 Days

Day: 12.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,016,493 km

• M1: 187,895 km (0.082 R)
• M2: 825,780 km (0.103 R)
• M3: 1,478,775 km (0.073 R)
• M4: 2,002,966 km (0.083 R)
• M5: 3,205,583 km (0.093 R)
• M6: 4,485,094 km (0.071 R)
• M7: 5,981,072 km (0.068 R)
• M8: 6,637,957 km (0.072 R)
• M9: 7,430,526 km (0.113 R)
• M10: 8,190,932 km (0.094 R)
• M11: 8,969,140 km (0.046 R)
• M12: 9,655,047 km (0.039 R)
• M13: 11,209,668 km (0.064 R)
• M14: 12,840,135 km (0.089 R)
• M15: 14,027,044 km (0.119 R)
• M16: 15,478,742 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.4

Radius: 12.6

Gravity: 4.17 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.92 AU - 2.96 AU

Year: 3307 Days

Day: 9.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,016,493 km

• M1: 156,779 km (0.098 R)
• M2: 677,529 km (0.091 R)
• M3: 1,206,357 km (0.04 R)
• M4: 1,753,137 km (0.051 R)
• M5: 2,290,044 km (0.069 R)
• M6: 2,691,864 km (0.095 R)
• M7: 3,265,871 km (0.116 R)
• M8: 4,257,855 km (0.078 R)
• M9: 4,684,209 km (0.085 R)
• M10: 5,863,339 km (0.119 R)
• M11: 7,388,340 km (0.11 R)
• M12: 8,107,756 km (0.081 R)
• M13: 9,422,422 km (0.093 R)
• M14: 10,388,226 km (0.086 R)
• M15: 12,471,376 km (0.115 R)
• M16: 15,074,828 km (0.107 R)
• M17: 18,253,932 km (0.083 R)
• M18: 18,665,626 km (0.116 R)
• M19: 20,000,338 km (0.082 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.6

Radius: 12.1

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 3.44 AU - 4.04 AU

Year: 4745 Days

Day: 13.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 82,016,493 km

• M1: 150,495 km (0.061 R)
• M2: 601,982 km (0.103 R)
• M3: 1,088,175 km (0.091 R)
• M4: 1,581,698 km (0.07 R)
• M5: 2,147,029 km (0.094 R)
• M6: 4,562,585 km (0.118 R)
• M7: 7,322,666 km (0.039 R)
• M8: 7,836,236 km (0.107 R)
• M9: 9,879,892 km (0.098 R)
• M10: 10,470,205 km (0.101 R)
• M11: 10,850,932 km (0.103 R)
• M12: 11,399,507 km (0.066 R)
• M13: 12,939,169 km (0.092 R)
• M14: 14,055,169 km (0.114 R)
• M15: 15,674,416 km (0.091 R)
• M16: 16,173,624 km (0.117 R)
• M17: 17,467,945 km (0.112 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.7

Radius: 7.7

Gravity: 11.73 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 7.07 AU - 7.19 AU

Year: 12489 Days

Day: 18.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,016,493 km

• M1: 95,892 km (0.097 R)
• M2: 896,241 km (0.105 R)
• M3: 1,839,306 km (0.08 R)
• M4: 2,591,334 km (0.099 R)
• M5: 3,507,621 km (0.086 R)
• M6: 5,924,225 km (0.084 R)
• M7: 6,902,446 km (0.062 R)
• M8: 7,984,487 km (0.082 R)
• M9: 8,353,545 km (0.057 R)
• M10: 9,631,859 km (0.049 R)
• M11: 10,811,438 km (0.113 R)
• M12: 11,552,247 km (0.086 R)
• M13: 13,714,385 km (0.054 R)
• M14: 15,064,057 km (0.053 R)
• M15: 38,369,460 km (0.088 R)
• M16: 44,964,482 km (0.081 R)
• M17: 45,400,111 km (0.082 R)
• M18: 49,757,299 km (0.047 R)
• M19: 54,549,816 km (0.03 R)
• M20: 55,045,285 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 749.2

Radius: 7.3

Gravity: 14.06 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 8.39 AU - 12.03 AU

Year: 21402 Days

Day: 23 Hours

Environment

Temp: -232 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,016,493 km

• M1: 90,806 km (0.037 R)
• M2: 361,728 km (0.071 R)
• M3: 796,609 km (0.097 R)
• M4: 1,036,414 km (0.117 R)
• M5: 1,280,857 km (0.111 R)
• M6: 2,027,500 km (0.083 R)
• M7: 3,756,103 km (0.093 R)
• M8: 6,074,272 km (0.113 R)
• M9: 6,424,331 km (0.051 R)
• M10: 8,705,549 km (0.111 R)
• M11: 8,982,305 km (0.071 R)
• M12: 9,322,042 km (0.112 R)
• M13: 9,788,338 km (0.069 R)
• M14: 11,610,141 km (0.099 R)
• M15: 13,134,992 km (0.112 R)
• M16: 20,092,191 km (0.093 R)
• M17: 20,478,602 km (0.102 R)
• M18: 23,430,617 km (0.113 R)
• M19: 25,511,374 km (0.075 R)
• M20: 27,121,346 km (0.053 R)
• M21: 28,920,111 km (0.086 R)
• M22: 32,488,020 km (0.035 R)
• M23: 33,020,588 km (0.097 R)
• M24: 34,515,071 km (0.074 R)
• M25: 37,201,849 km (0.083 R)
• M26: 38,968,749 km (0.09 R)
• M27: 41,566,666 km (0.062 R)
• M28: 52,564,503 km (0.078 R)
• M29: 58,431,881 km (0.113 R)
• M30: 60,013,879 km (0.112 R)
• M31: 65,775,940 km (0.058 R)
• M32: 66,628,049 km (0.099 R)
• M33: 71,671,143 km (0.107 R)
• M34: 73,027,397 km (0.087 R)
• M35: 73,711,808 km (0.047 R)
• M36: 78,146,637 km (0.074 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 449 - 19,177 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit