🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.48 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.95 AU - 0.97 AU

Year: 344 Days

Day: 33.7 Hours

Environment

Temp: 42 °C

Axial Tilt: 32 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 48,300,128 km

• M1: 546,631 km (0.106 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.89 AU - 1.17 AU

Year: 382 Days

Day: 43 Hours

Environment

Temp: 32 °C

Axial Tilt: 132.9 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 1.92 AU - 2.94 AU

Year: 1384 Days

Day: 33.9 Hours

Environment

Temp: -79 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,300,128 km

• M1: 93,499 km (0.103 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 3.68 AU - 5.34 AU

Year: 3498 Days

Day: 13.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,300,128 km

• M1: 1,425,069 km (0.042 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.3

Radius: 11.1

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.67 AU - 6.75 AU

Year: 4984 Days

Day: 9.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 85.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 48,300,128 km

• M1: 138,079 km (0.052 R)
• M2: 800,498 km (0.066 R)
• M3: 1,297,014 km (0.089 R)
• M4: 1,654,852 km (0.091 R)
• M5: 2,560,667 km (0.074 R)
• M6: 3,134,075 km (0.102 R)
• M7: 4,440,514 km (0.11 R)
• M8: 6,578,716 km (0.065 R)
• M9: 6,937,003 km (0.084 R)
• M10: 8,929,198 km (0.12 R)
• M11: 9,288,233 km (0.092 R)
• M12: 9,781,906 km (0.102 R)
• M13: 13,275,315 km (0.073 R)
• M14: 15,961,195 km (0.116 R)
• M15: 17,586,426 km (0.071 R)
• M16: 18,535,625 km (0.108 R)
• M17: 19,854,031 km (0.087 R)
• M18: 20,813,253 km (0.034 R)
• M19: 26,980,126 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 977.5

Radius: 12.9

Gravity: 5.87 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 6.54 AU - 7.76 AU

Year: 6983 Days

Day: 9 Hours

Environment

Temp: -160 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 48,300,128 km

• M1: 160,519 km (0.118 R)
• M2: 798,105 km (0.055 R)
• M3: 1,560,007 km (0.062 R)
• M4: 3,571,948 km (0.066 R)
• M5: 4,360,329 km (0.097 R)
• M6: 5,940,382 km (0.096 R)
• M7: 9,907,568 km (0.079 R)
• M8: 11,149,529 km (0.099 R)
• M9: 13,701,968 km (0.081 R)
• M10: 18,155,497 km (0.113 R)
• M11: 23,491,802 km (0.044 R)
• M12: 26,887,973 km (0.101 R)
• M13: 30,497,022 km (0.082 R)
• M14: 30,905,574 km (0.09 R)
• M15: 31,525,358 km (0.116 R)
• M16: 35,419,241 km (0.065 R)
• M17: 40,231,655 km (0.048 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 640

Radius: 5.8

Gravity: 19.02 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 13.44 AU - 14.42 AU

Year: 18990 Days

Day: 18.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,300,128 km

• M1: 72,705 km (0.068 R)
• M2: 456,872 km (0.108 R)
• M3: 1,786,947 km (0.056 R)
• M4: 2,893,672 km (0.059 R)
• M5: 3,477,552 km (0.072 R)
• M6: 4,396,233 km (0.063 R)
• M7: 5,940,382 km (0.07 R)
• M8: 6,789,649 km (0.107 R)
• M9: 7,336,429 km (0.085 R)
• M10: 8,363,419 km (0.105 R)
• M11: 8,673,685 km (0.117 R)
• M12: 12,410,639 km (0.115 R)
• M13: 15,655,567 km (0.034 R)
• M14: 16,607,757 km (0.071 R)
• M15: 20,244,781 km (0.075 R)
• M16: 21,469,838 km (0.069 R)
• M17: 26,977,882 km (0.106 R)
• M18: 31,584,299 km (0.111 R)
• M19: 48,328,041 km (0.109 R)
• M20: 51,192,391 km (0.069 R)
• M21: 51,536,616 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 91.6

Radius: 7.1

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 14.03 AU - 21.77 AU

Year: 27661 Days

Day: 20.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 48,300,128 km

• M1: 88,412 km (0.066 R)
• M2: 503,696 km (0.107 R)
• M3: 1,058,555 km (0.118 R)
• M4: 1,403,078 km (0.056 R)
• M5: 1,789,639 km (0.081 R)
• M6: 2,137,754 km (0.096 R)
• M7: 2,970,266 km (0.1 R)
• M8: 3,815,494 km (0.071 R)
• M9: 4,394,288 km (0.108 R)
• M10: 4,967,098 km (0.043 R)
• M11: 5,255,224 km (0.118 R)
• M12: 5,760,416 km (0.069 R)
• M13: 6,006,953 km (0.084 R)
• M14: 6,371,373 km (0.099 R)
• M15: 8,923,064 km (0.05 R)
• M16: 9,158,531 km (0.096 R)
• M17: 10,243,864 km (0.092 R)
• M18: 13,574,361 km (0.051 R)
• M19: 21,335,798 km (0.086 R)
• M20: 28,663,700 km (0.057 R)
• M21: 30,540,256 km (0.076 R)
• M22: 39,496,680 km (0.106 R)
• M23: 41,293,500 km (0.093 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: 485 - 19,093 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit