🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.48 AU - 0.72 AU

Year: 300 Days

Day: 47.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 19.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 96.4

Radius: 9.8

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.71 AU - 0.99 AU

Year: 506 Days

Day: 12.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,010,644 km

• M1: 122,072 km (0.027 R)
• M2: 427,551 km (0.109 R)
• M3: 800,797 km (0.052 R)
• M4: 1,115,551 km (0.083 R)
• M5: 1,520,513 km (0.113 R)
• M6: 2,106,188 km (0.099 R)
• M7: 2,424,832 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.7

Radius: 13.3

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.95 AU - 1.35 AU

Year: 796 Days

Day: 13.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,010,644 km

• M1: 165,455 km (0.071 R)
• M2: 624,870 km (0.081 R)
• M3: 1,042,697 km (0.115 R)
• M4: 1,869,973 km (0.046 R)
• M5: 2,288,997 km (0.101 R)
• M6: 3,624,008 km (0.041 R)
• M7: 4,051,110 km (0.077 R)
• M8: 5,333,463 km (0.095 R)
• M9: 6,170,613 km (0.065 R)
• M10: 7,766,523 km (0.102 R)
• M11: 8,660,819 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.4

Radius: 12.9

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 1.63 AU - 1.77 AU

Year: 1431 Days

Day: 7.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,010,644 km

• M1: 164,558 km (0.101 R)
• M2: 607,068 km (0.105 R)
• M3: 1,010,534 km (0.079 R)
• M4: 1,804,898 km (0.102 R)
• M5: 2,539,424 km (0.118 R)
• M6: 4,112,595 km (0.082 R)
• M7: 4,552,562 km (0.071 R)
• M8: 5,080,493 km (0.052 R)
• M9: 5,488,147 km (0.041 R)
• M10: 6,130,222 km (0.078 R)
• M11: 8,494,765 km (0.051 R)
• M12: 8,987,541 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.3

Radius: 9.8

Gravity: 8.55 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.46 AU - 2.02 AU

Year: 1482 Days

Day: 14.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 71,010,644 km

• M1: 121,922 km (0.059 R)
• M2: 435,629 km (0.092 R)
• M3: 803,789 km (0.105 R)
• M4: 1,199,625 km (0.075 R)
• M5: 1,525,150 km (0.09 R)
• M6: 1,868,029 km (0.104 R)
• M7: 2,578,319 km (0.069 R)
• M8: 3,070,197 km (0.101 R)
• M9: 3,707,933 km (0.111 R)
• M10: 4,205,196 km (0.097 R)
• M11: 4,706,199 km (0.103 R)
• M12: 6,703,181 km (0.098 R)
• M13: 7,469,870 km (0.1 R)
• M14: 7,860,471 km (0.095 R)
• M15: 8,176,870 km (0.095 R)
• M16: 10,811,438 km (0.027 R)
• M17: 11,167,331 km (0.112 R)
• M18: 11,641,557 km (0.094 R)
• M19: 13,469,643 km (0.093 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 267.4

Radius: 3.6

Gravity: 20.63 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 6.52 AU - 9.62 AU

Year: 14802 Days

Day: 16.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 71,010,644 km

• M1: 47,871 km (0.062 R)
• M2: 260,300 km (0.079 R)
• M3: 649,853 km (0.096 R)
• M4: 1,031,926 km (0.103 R)
• M5: 1,176,438 km (0.106 R)
• M6: 1,385,875 km (0.082 R)
• M7: 2,558,722 km (0.09 R)
• M8: 3,485,182 km (0.058 R)
• M9: 3,760,591 km (0.111 R)
• M10: 4,186,796 km (0.104 R)
• M11: 4,354,794 km (0.075 R)
• M12: 5,071,667 km (0.087 R)
• M13: 5,491,289 km (0.105 R)
• M14: 7,242,033 km (0.089 R)
• M15: 9,475,529 km (0.1 R)
• M16: 9,961,573 km (0.09 R)
• M17: 11,142,199 km (0.031 R)
• M18: 11,738,496 km (0.113 R)
• M19: 13,654,845 km (0.12 R)
• M20: 16,869,703 km (0.094 R)
• M21: 18,764,510 km (0.101 R)
• M22: 20,635,081 km (0.086 R)
• M23: 24,470,771 km (0.065 R)
• M24: 26,412,850 km (0.085 R)
• M25: 27,082,301 km (0.098 R)
• M26: 29,770,874 km (0.056 R)
• M27: 30,915,447 km (0.081 R)
• M28: 32,523,026 km (0.07 R)
• M29: 34,298,154 km (0.099 R)
• M30: 35,439,885 km (0.112 R)
• M31: 36,371,282 km (0.105 R)
• M32: 42,695,681 km (0.092 R)
• M33: 42,957,627 km (0.114 R)
• M34: 43,617,054 km (0.097 R)
• M35: 44,283,363 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.9

Radius: 3.8

Gravity: 28.18 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 9.81 AU - 12.09 AU

Year: 23396 Days

Day: 16.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,010,644 km

• M1: 47,423 km (0.119 R)
• M2: 166,802 km (0.075 R)
• M3: 321,935 km (0.098 R)
• M4: 541,694 km (0.096 R)
• M5: 991,983 km (0.042 R)
• M6: 1,571,974 km (0.051 R)
• M7: 1,906,326 km (0.114 R)
• M8: 2,223,324 km (0.052 R)
• M9: 3,012,303 km (0.101 R)
• M10: 9,186,506 km (0.085 R)
• M11: 10,315,820 km (0.112 R)
• M12: 12,509,524 km (0.06 R)
• M13: 12,778,501 km (0.062 R)
• M14: 16,154,625 km (0.069 R)
• M15: 17,791,376 km (0.109 R)
• M16: 22,956,242 km (0.12 R)
• M17: 23,460,836 km (0.057 R)
• M18: 23,869,836 km (0.092 R)
• M19: 28,686,888 km (0.11 R)
• M20: 31,568,891 km (0.081 R)
• M21: 32,192,564 km (0.029 R)
• M22: 35,703,477 km (0.051 R)
• M23: 40,184,830 km (0.082 R)
• M24: 42,408,752 km (0.095 R)
• M25: 46,135,235 km (0.104 R)
• M26: 55,125,619 km (0.1 R)
• M27: 60,314,870 km (0.093 R)
• M28: 64,613,564 km (0.113 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 17,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit