🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 995.6

Radius: 9.6

Gravity: 10.8 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.88 AU - 1.2 AU

Year: 719 Days

Day: 9.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 42,511,082 km

• M1: 119,529 km (0.117 R)
• M2: 461,809 km (0.113 R)
• M3: 861,684 km (0.032 R)
• M4: 1,183,768 km (0.094 R)
• M5: 1,563,148 km (0.076 R)
• M6: 2,152,265 km (0.119 R)
• M7: 2,493,497 km (0.107 R)
• M8: 2,821,565 km (0.074 R)
• M9: 3,396,021 km (0.108 R)
• M10: 3,968,682 km (0.077 R)
• M11: 4,502,447 km (0.091 R)
• M12: 5,028,583 km (0.085 R)
• M13: 5,420,978 km (0.06 R)
• M14: 5,773,431 km (0.11 R)
• M15: 6,224,917 km (0.119 R)
• M16: 7,106,497 km (0.083 R)
• M17: 7,433,967 km (0.101 R)
• M18: 7,845,062 km (0.09 R)
• M19: 9,007,288 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80

Radius: 12

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.4 AU - 1.44 AU

Year: 1148 Days

Day: 9.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,511,082 km

• M1: 150,645 km (0.088 R)
• M2: 676,781 km (0.118 R)
• M3: 1,426,266 km (0.037 R)
• M4: 1,995,935 km (0.057 R)
• M5: 2,926,583 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.9

Radius: 11.4

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.89 AU - 2.11 AU

Year: 1918 Days

Day: 11.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,511,082 km

• M1: 141,819 km (0.041 R)
• M2: 556,654 km (0.108 R)
• M3: 933,790 km (0.101 R)
• M4: 1,923,230 km (0.078 R)
• M5: 3,239,392 km (0.085 R)
• M6: 4,047,221 km (0.112 R)
• M7: 4,651,895 km (0.11 R)
• M8: 6,229,405 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 125

Radius: 11.2

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 2.36 AU - 3.34 AU

Year: 3263 Days

Day: 6.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 42,511,082 km

• M1: 139,276 km (0.111 R)
• M2: 800,797 km (0.087 R)
• M3: 1,181,374 km (0.12 R)
• M4: 1,761,515 km (0.062 R)
• M5: 2,124,290 km (0.087 R)
• M6: 3,018,586 km (0.1 R)
• M7: 3,770,914 km (0.082 R)
• M8: 9,556,761 km (0.051 R)
• M9: 12,063,871 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296.6

Radius: 11.2

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 2.46 AU - 3.74 AU

Year: 3702 Days

Day: 6.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 42,511,082 km

• M1: 139,874 km (0.118 R)
• M2: 555,457 km (0.104 R)
• M3: 1,594,115 km (0.119 R)
• M4: 2,269,400 km (0.093 R)
• M5: 3,260,486 km (0.073 R)
• M6: 3,741,293 km (0.077 R)
• M7: 4,167,647 km (0.063 R)
• M8: 6,182,431 km (0.044 R)
• M9: 6,725,023 km (0.112 R)
• M10: 9,323,238 km (0.117 R)
• M11: 11,697,058 km (0.078 R)
• M12: 14,401,488 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.1

Radius: 12.3

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 2.94 AU - 4.18 AU

Year: 4556 Days

Day: 5.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 42,511,082 km

• M1: 233,373 km (0.066 R)
• M2: 824,135 km (0.08 R)
• M3: 1,253,780 km (0.109 R)
• M4: 1,981,125 km (0.119 R)
• M5: 2,449,665 km (0.119 R)
• M6: 3,430,578 km (0.044 R)
• M7: 3,846,760 km (0.079 R)
• M8: 5,249,539 km (0.067 R)
• M9: 6,097,310 km (0.117 R)
• M10: 6,711,858 km (0.082 R)
• M11: 7,100,065 km (0.105 R)
• M12: 7,675,867 km (0.089 R)
• M13: 9,037,357 km (0.09 R)
• M14: 10,002,862 km (0.076 R)
• M15: 14,455,792 km (0.098 R)
• M16: 15,326,751 km (0.103 R)
• M17: 20,619,224 km (0.089 R)
• M18: 21,863,430 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.7

Radius: 8.4

Gravity: 11.16 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 3.97 AU - 6.21 AU

Year: 7789 Days

Day: 12.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,511,082 km

• M1: 105,616 km (0.079 R)
• M2: 1,005,746 km (0.11 R)
• M3: 1,380,040 km (0.054 R)
• M4: 1,656,348 km (0.081 R)
• M5: 3,291,452 km (0.079 R)
• M6: 6,782,019 km (0.113 R)
• M7: 7,432,770 km (0.056 R)
• M8: 8,040,886 km (0.11 R)
• M9: 10,358,605 km (0.088 R)
• M10: 11,325,606 km (0.106 R)
• M11: 12,296,197 km (0.114 R)
• M12: 14,525,654 km (0.085 R)
• M13: 17,149,750 km (0.093 R)
• M14: 20,461,698 km (0.092 R)
• M15: 21,816,605 km (0.086 R)
• M16: 23,145,633 km (0.102 R)
• M17: 25,328,864 km (0.116 R)
• M18: 27,741,429 km (0.095 R)
• M19: 28,611,042 km (0.09 R)
• M20: 31,641,296 km (0.116 R)
• M21: 34,435,036 km (0.115 R)
• M22: 36,005,515 km (0.109 R)
• M23: 42,004,240 km (0.084 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 446 - 19,249 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit