🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.56 AU - 0.78 AU

Year: 349 Days

Day: 38.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 36.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312.2

Radius: 10

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.77 AU - 0.95 AU

Year: 507 Days

Day: 10.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 51,797,430 km

• M1: 124,316 km (0.099 R)
• M2: 597,943 km (0.079 R)
• M3: 1,215,931 km (0.047 R)
• M4: 1,779,167 km (0.097 R)
• M5: 3,370,290 km (0.083 R)
• M6: 4,310,663 km (0.074 R)
• M7: 4,921,770 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.1

Radius: 10.4

Gravity: 7.28 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.33 AU - 1.81 AU

Year: 1251 Days

Day: 7.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,797,430 km

• M1: 130,150 km (0.085 R)
• M2: 454,927 km (0.032 R)
• M3: 948,750 km (0.119 R)
• M4: 1,573,620 km (0.091 R)
• M5: 1,958,535 km (0.095 R)
• M6: 2,323,405 km (0.116 R)
• M7: 2,733,901 km (0.081 R)
• M8: 3,134,225 km (0.108 R)
• M9: 3,605,608 km (0.078 R)
• M10: 4,539,697 km (0.066 R)
• M11: 5,247,295 km (0.075 R)
• M12: 6,094,916 km (0.117 R)
• M13: 7,158,258 km (0.076 R)
• M14: 7,761,138 km (0.087 R)
• M15: 8,228,332 km (0.037 R)
• M16: 8,919,623 km (0.104 R)
• M17: 10,484,118 km (0.054 R)
• M18: 11,541,625 km (0.116 R)
• M19: 11,969,475 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.9

Radius: 14.7

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.62 AU - 3.2 AU

Year: 3156 Days

Day: 8.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,797,430 km

• M1: 182,809 km (0.111 R)
• M2: 731,384 km (0.037 R)
• M3: 1,548,188 km (0.1 R)
• M4: 2,301,862 km (0.061 R)
• M5: 3,008,114 km (0.097 R)
• M6: 3,538,738 km (0.113 R)
• M7: 4,172,434 km (0.094 R)
• M8: 4,791,171 km (0.087 R)
• M9: 5,669,460 km (0.116 R)
• M10: 8,485,790 km (0.077 R)
• M11: 9,096,448 km (0.115 R)
• M12: 9,736,278 km (0.088 R)
• M13: 10,444,175 km (0.107 R)
• M14: 11,186,181 km (0.061 R)
• M15: 12,089,004 km (0.091 R)
• M16: 14,086,734 km (0.103 R)
• M17: 14,606,886 km (0.078 R)
• M18: 15,535,589 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.8

Radius: 12.5

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 4.46 AU - 5.4 AU

Year: 6960 Days

Day: 7.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 51,797,430 km

• M1: 155,432 km (0.086 R)
• M2: 585,227 km (0.029 R)
• M3: 1,154,596 km (0.094 R)
• M4: 1,625,082 km (0.12 R)
• M5: 2,192,357 km (0.087 R)
• M6: 2,832,336 km (0.11 R)
• M7: 3,505,677 km (0.102 R)
• M8: 4,726,994 km (0.117 R)
• M9: 6,052,580 km (0.103 R)
• M10: 6,444,975 km (0.079 R)
• M11: 8,874,894 km (0.062 R)
• M12: 10,364,140 km (0.087 R)
• M13: 13,225,349 km (0.089 R)
• M14: 17,413,791 km (0.079 R)
• M15: 21,269,825 km (0.112 R)
• M16: 23,516,486 km (0.076 R)
• M17: 26,433,495 km (0.037 R)
• M18: 27,220,829 km (0.083 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 340.9

Radius: 6.2

Gravity: 8.87 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 6.89 AU - 10.23 AU

Year: 15924 Days

Day: 24.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 51,797,430 km

• M1: 77,193 km (0.115 R)
• M2: 426,354 km (0.118 R)
• M3: 642,972 km (0.116 R)
• M4: 1,106,426 km (0.12 R)
• M5: 1,678,339 km (0.12 R)
• M6: 2,182,483 km (0.113 R)
• M7: 2,633,671 km (0.032 R)
• M8: 2,982,832 km (0.1 R)
• M9: 3,694,170 km (0.093 R)
• M10: 4,075,495 km (0.058 R)
• M11: 5,045,936 km (0.098 R)
• M12: 5,310,874 km (0.084 R)
• M13: 7,100,513 km (0.058 R)
• M14: 8,588,563 km (0.119 R)
• M15: 9,655,346 km (0.105 R)
• M16: 10,971,657 km (0.112 R)
• M17: 11,192,913 km (0.11 R)
• M18: 11,587,253 km (0.102 R)
• M19: 13,826,882 km (0.026 R)
• M20: 15,493,702 km (0.103 R)
• M21: 15,983,485 km (0.108 R)
• M22: 18,666,673 km (0.106 R)
• M23: 19,542,867 km (0.103 R)
• M24: 21,291,367 km (0.077 R)
• M25: 21,984,005 km (0.097 R)
• M26: 29,013,460 km (0.05 R)
• M27: 33,088,955 km (0.108 R)
• M28: 38,033,164 km (0.084 R)
• M29: 38,413,143 km (0.102 R)
• M30: 39,309,533 km (0.114 R)
• M31: 40,219,986 km (0.069 R)
• M32: 40,614,326 km (0.088 R)
• M33: 45,266,371 km (0.103 R)
• M34: 46,989,439 km (0.032 R)
• M35: 47,573,469 km (0.074 R)
• M36: 48,607,041 km (0.078 R)
• M37: 50,109,303 km (0.103 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: 174 - 13,027 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit