🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.8

Radius: 12.3

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.13 AU - 1.15 AU

Year: 826 Days

Day: 7.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,071,424 km

• M1: 153,039 km (0.058 R)
• M2: 576,251 km (0.078 R)
• M3: 1,066,483 km (0.097 R)
• M4: 1,565,841 km (0.094 R)
• M5: 2,074,025 km (0.049 R)
• M6: 3,152,027 km (0.071 R)
• M7: 3,679,360 km (0.086 R)
• M8: 5,000,159 km (0.107 R)
• M9: 5,398,239 km (0.113 R)
• M10: 7,322,816 km (0.079 R)
• M11: 8,554,305 km (0.086 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.5

Radius: 14.3

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.89 AU - 1.39 AU

Year: 826 Days

Day: 11 Hours

Environment

Temp: -174 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 40,071,424 km

• M1: 177,872 km (0.096 R)
• M2: 732,880 km (0.111 R)
• M3: 1,393,055 km (0.077 R)
• M4: 1,855,313 km (0.042 R)
• M5: 2,309,193 km (0.107 R)
• M6: 4,074,597 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.9

Radius: 12.5

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.03 AU - 1.69 AU

Year: 1076 Days

Day: 13.6 Hours

Environment

Temp: -178 °C

Axial Tilt: 61.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,071,424 km

• M1: 155,432 km (0.103 R)
• M2: 608,714 km (0.098 R)
• M3: 1,759,421 km (0.051 R)
• M4: 2,421,092 km (0.081 R)
• M5: 2,848,493 km (0.112 R)
• M6: 4,015,805 km (0.069 R)
• M7: 4,852,656 km (0.095 R)
• M8: 5,245,500 km (0.092 R)
• M9: 6,267,552 km (0.088 R)
• M10: 6,895,415 km (0.062 R)
• M11: 7,296,935 km (0.025 R)
• M12: 8,596,342 km (0.097 R)
• M13: 9,117,990 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.7

Radius: 14.7

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.93 AU - 2.05 AU

Year: 1904 Days

Day: 5.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,071,424 km

• M1: 182,809 km (0.109 R)
• M2: 768,783 km (0.116 R)
• M3: 1,547,740 km (0.108 R)
• M4: 3,357,724 km (0.055 R)
• M5: 5,278,112 km (0.03 R)
• M6: 6,799,971 km (0.114 R)
• M7: 9,337,899 km (0.056 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.8

Radius: 14.7

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 2 AU - 2.86 AU

Year: 2569 Days

Day: 8 Hours

Environment

Temp: -209 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,071,424 km

• M1: 182,958 km (0.075 R)
• M2: 770,878 km (0.106 R)
• M3: 1,321,248 km (0.026 R)
• M4: 1,874,611 km (0.117 R)
• M5: 2,843,257 km (0.11 R)
• M6: 5,603,338 km (0.081 R)
• M7: 6,438,992 km (0.075 R)
• M8: 7,861,219 km (0.074 R)
• M9: 8,329,310 km (0.055 R)
• M10: 8,909,600 km (0.097 R)
• M11: 10,601,851 km (0.115 R)
• M12: 11,617,621 km (0.1 R)
• M13: 13,885,226 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 168.1

Radius: 9.1

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.29 AU - 4.17 AU

Year: 4886 Days

Day: 8.8 Hours

Environment

Temp: -210 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,071,424 km

• M1: 114,293 km (0.109 R)
• M2: 730,935 km (0.119 R)
• M3: 1,050,476 km (0.098 R)
• M4: 1,914,254 km (0.077 R)
• M5: 2,714,902 km (0.106 R)
• M6: 3,742,041 km (0.092 R)
• M7: 4,170,190 km (0.112 R)
• M8: 4,608,961 km (0.081 R)
• M9: 7,340,917 km (0.074 R)
• M10: 7,672,127 km (0.118 R)
• M11: 13,467,548 km (0.09 R)
• M12: 13,873,557 km (0.117 R)
• M13: 15,580,020 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 846

Radius: 7.8

Gravity: 13.91 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 6.65 AU - 7.49 AU

Year: 12750 Days

Day: 17.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,071,424 km

• M1: 97,987 km (0.091 R)
• M2: 344,225 km (0.112 R)
• M3: 1,743,414 km (0.096 R)
• M4: 2,663,440 km (0.098 R)
• M5: 3,032,798 km (0.103 R)
• M6: 3,903,158 km (0.119 R)
• M7: 5,561,899 km (0.077 R)
• M8: 7,287,211 km (0.082 R)
• M9: 8,295,501 km (0.05 R)
• M10: 8,585,871 km (0.091 R)
• M11: 9,085,228 km (0.1 R)
• M12: 11,277,735 km (0.086 R)
• M13: 12,878,432 km (0.083 R)
• M14: 13,334,107 km (0.025 R)
• M15: 14,071,924 km (0.079 R)
• M16: 15,775,544 km (0.089 R)
• M17: 16,830,508 km (0.081 R)
• M18: 20,893,886 km (0.079 R)
• M19: 21,161,965 km (0.032 R)
• M20: 21,796,559 km (0.107 R)
• M21: 24,069,101 km (0.089 R)
• M22: 24,760,542 km (0.106 R)
• M23: 31,124,136 km (0.087 R)
• M24: 31,944,681 km (0.118 R)
• M25: 34,867,673 km (0.119 R)
• M26: 38,497,666 km (0.086 R)
• M27: 48,658,503 km (0.094 R)
• M28: 54,857,689 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.5

Radius: 4.2

Gravity: 8.82 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.25 AU - 10.23 AU

Year: 16043 Days

Day: 24.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 40,071,424 km

• M1: 52,210 km (0.041 R)
• M2: 198,367 km (0.08 R)
• M3: 640,728 km (0.073 R)
• M4: 875,447 km (0.049 R)
• M5: 1,028,186 km (0.087 R)
• M6: 1,724,265 km (0.099 R)
• M7: 1,934,899 km (0.079 R)
• M8: 2,575,178 km (0.104 R)
• M9: 5,206,155 km (0.065 R)
• M10: 8,524,685 km (0.105 R)
• M11: 12,691,135 km (0.057 R)
• M12: 13,428,802 km (0.054 R)
• M13: 14,989,258 km (0.082 R)
• M14: 16,072,496 km (0.079 R)
• M15: 16,466,986 km (0.12 R)
• M16: 19,410,922 km (0.069 R)
• M17: 19,559,323 km (0.116 R)
• M18: 22,360,543 km (0.097 R)
• M19: 33,291,510 km (0.075 R)
• M20: 36,463,883 km (0.117 R)
• M21: 39,474,091 km (0.111 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 318 - 10,860 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit