🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.4

Radius: 12.2

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.55 AU - 0.83 AU

Year: 376 Days

Day: 13 Hours

Environment

Temp: -132 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 35,244,971 km

• M1: 151,692 km (0.099 R)
• M2: 614,099 km (0.084 R)
• M3: 1,073,664 km (0.048 R)
• M4: 1,535,473 km (0.078 R)
• M5: 2,403,888 km (0.04 R)
• M6: 2,823,211 km (0.115 R)
• M7: 3,268,863 km (0.092 R)
• M8: 3,967,036 km (0.053 R)
• M9: 4,443,356 km (0.063 R)
• M10: 4,927,455 km (0.056 R)
• M11: 5,561,301 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.9

Radius: 11.2

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.87 AU - 1.35 AU

Year: 767 Days

Day: 12.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,244,971 km

• M1: 139,575 km (0.071 R)
• M2: 572,661 km (0.112 R)
• M3: 1,304,493 km (0.119 R)
• M4: 2,442,484 km (0.069 R)
• M5: 2,872,578 km (0.099 R)
• M6: 3,737,254 km (0.103 R)
• M7: 4,295,404 km (0.068 R)
• M8: 5,463,314 km (0.097 R)
• M9: 6,246,609 km (0.036 R)
• M10: 6,831,686 km (0.109 R)
• M11: 7,524,324 km (0.088 R)
• M12: 8,212,325 km (0.096 R)
• M13: 8,676,527 km (0.08 R)
• M14: 9,185,459 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 476.2

Radius: 14.7

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.8 AU - 4.48 AU

Year: 4556 Days

Day: 10.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 35,244,971 km

• M1: 182,809 km (0.119 R)
• M2: 817,104 km (0.083 R)
• M3: 1,509,443 km (0.054 R)
• M4: 2,031,838 km (0.115 R)
• M5: 3,012,452 km (0.025 R)
• M6: 4,612,850 km (0.08 R)
• M7: 8,853,800 km (0.103 R)
• M8: 9,459,522 km (0.107 R)
• M9: 10,214,543 km (0.111 R)
• M10: 14,196,988 km (0.112 R)
• M11: 15,348,293 km (0.059 R)
• M12: 20,912,286 km (0.085 R)
• M13: 21,988,942 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.4

Radius: 13.6

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.77 AU - 4.37 AU

Year: 5386 Days

Day: 13.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 73.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 35,244,971 km

• M1: 177,722 km (0.04 R)
• M2: 649,704 km (0.09 R)
• M3: 1,255,425 km (0.1 R)
• M4: 2,144,186 km (0.067 R)
• M5: 2,773,545 km (0.065 R)
• M6: 3,217,252 km (0.117 R)
• M7: 3,948,486 km (0.081 R)
• M8: 4,531,619 km (0.083 R)
• M9: 4,977,420 km (0.042 R)
• M10: 8,522,142 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 501.7

Radius: 9.4

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 3.19 AU - 5.07 AU

Year: 5506 Days

Day: 5.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,244,971 km

• M1: 118,631 km (0.096 R)
• M2: 625,020 km (0.073 R)
• M3: 1,324,689 km (0.114 R)
• M4: 2,213,151 km (0.038 R)
• M5: 3,023,523 km (0.101 R)
• M6: 4,088,510 km (0.092 R)
• M7: 4,420,617 km (0.068 R)
• M8: 5,139,435 km (0.088 R)
• M9: 6,206,217 km (0.083 R)
• M10: 8,541,739 km (0.092 R)
• M11: 8,889,554 km (0.106 R)
• M12: 9,863,436 km (0.08 R)
• M13: 11,042,268 km (0.07 R)
• M14: 12,118,475 km (0.108 R)
• M15: 13,521,254 km (0.107 R)
• M16: 19,683,041 km (0.09 R)
• M17: 21,544,188 km (0.105 R)
• M18: 24,127,593 km (0.064 R)
• M19: 25,374,641 km (0.101 R)
• M20: 27,743,673 km (0.048 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 133.8

Radius: 3

Gravity: 14.87 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 7.01 AU - 7.19 AU

Year: 12411 Days

Day: 20.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,244,971 km

• M1: 37,399 km (0.097 R)
• M2: 654,790 km (0.107 R)
• M3: 764,445 km (0.052 R)
• M4: 1,040,004 km (0.108 R)
• M5: 1,472,641 km (0.091 R)
• M6: 5,088,871 km (0.092 R)
• M7: 7,390,883 km (0.083 R)
• M8: 8,888,357 km (0.104 R)
• M9: 9,557,060 km (0.058 R)
• M10: 11,812,996 km (0.069 R)
• M11: 12,061,478 km (0.044 R)
• M12: 13,037,305 km (0.082 R)
• M13: 14,009,242 km (0.094 R)
• M14: 15,320,019 km (0.117 R)
• M15: 21,899,632 km (0.074 R)
• M16: 23,816,280 km (0.112 R)
• M17: 24,132,979 km (0.111 R)
• M18: 29,680,517 km (0.113 R)
• M19: 30,602,937 km (0.105 R)
• M20: 31,639,501 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 51.8

Radius: 5.5

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 9.1 AU - 12.28 AU

Year: 22929 Days

Day: 17.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,244,971 km

• M1: 115,190 km (0.118 R)
• M2: 422,913 km (0.107 R)
• M3: 1,807,142 km (0.076 R)
• M4: 3,168,184 km (0.088 R)
• M5: 3,720,499 km (0.098 R)
• M6: 5,857,355 km (0.068 R)
• M7: 6,548,647 km (0.092 R)
• M8: 7,819,481 km (0.074 R)
• M9: 9,684,218 km (0.107 R)
• M10: 11,031,796 km (0.109 R)
• M11: 11,325,307 km (0.12 R)
• M12: 15,327,947 km (0.101 R)
• M13: 22,131,958 km (0.117 R)
• M14: 27,104,292 km (0.052 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 12,838 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit