🌌 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: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.53 AU - 0.81 AU

Year: 349 Days

Day: 15.9 Hours

Environment

Temp: -144 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 752

Radius: 14.4

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.9 AU - 1.28 AU

Year: 724 Days

Day: 12.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,103,074 km

• M1: 179,069 km (0.095 R)
• M2: 670,198 km (0.074 R)
• M3: 1,120,488 km (0.058 R)
• M4: 1,679,386 km (0.056 R)
• M5: 3,001,232 km (0.075 R)
• M6: 3,711,523 km (0.111 R)
• M7: 4,183,953 km (0.086 R)
• M8: 6,556,127 km (0.073 R)
• M9: 7,409,732 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 758.4

Radius: 14.3

Gravity: 3.71 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.4 AU - 1.88 AU

Year: 1335 Days

Day: 13.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,103,074 km

• M1: 178,021 km (0.067 R)
• M2: 1,051,972 km (0.045 R)
• M3: 1,599,800 km (0.119 R)
• M4: 2,326,845 km (0.034 R)
• M5: 2,788,654 km (0.093 R)
• M6: 3,464,836 km (0.081 R)
• M7: 4,598,040 km (0.102 R)
• M8: 6,194,698 km (0.116 R)
• M9: 6,768,855 km (0.086 R)
• M10: 7,274,346 km (0.087 R)
• M11: 11,446,930 km (0.043 R)
• M12: 12,764,289 km (0.079 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37

Radius: 14.1

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.37 AU - 6.69 AU

Year: 9415 Days

Day: 6.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,103,074 km

• M1: 176,974 km (0.072 R)
• M2: 645,216 km (0.118 R)
• M3: 1,354,160 km (0.087 R)
• M4: 1,809,087 km (0.101 R)
• M5: 3,201,245 km (0.094 R)
• M6: 3,768,221 km (0.087 R)
• M7: 5,835,514 km (0.116 R)
• M8: 8,702,557 km (0.114 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 543

Radius: 5

Gravity: 21.72 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 8.06 AU - 11.78 AU

Year: 19866 Days

Day: 18.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,103,074 km

• M1: 62,233 km (0.11 R)
• M2: 219,610 km (0.09 R)
• M3: 484,398 km (0.074 R)
• M4: 665,561 km (0.11 R)
• M5: 959,670 km (0.076 R)
• M6: 1,117,646 km (0.048 R)
• M7: 1,487,302 km (0.114 R)
• M8: 1,824,047 km (0.107 R)
• M9: 2,579,217 km (0.071 R)
• M10: 2,839,368 km (0.047 R)
• M11: 3,412,327 km (0.057 R)
• M12: 7,380,561 km (0.095 R)
• M13: 8,252,118 km (0.092 R)
• M14: 12,428,441 km (0.106 R)
• M15: 12,628,005 km (0.107 R)
• M16: 13,447,203 km (0.061 R)
• M17: 15,495,647 km (0.051 R)
• M18: 20,659,765 km (0.12 R)
• M19: 21,891,554 km (0.12 R)
• M20: 28,329,498 km (0.106 R)
• M21: 34,333,459 km (0.069 R)
• M22: 36,463,733 km (0.069 R)
• M23: 41,575,642 km (0.097 R)
• M24: 41,872,893 km (0.118 R)
• M25: 50,275,656 km (0.081 R)
• M26: 62,807,768 km (0.032 R)
• M27: 63,395,389 km (0.051 R)
• M28: 68,849,877 km (0.054 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 290 - 11,457 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit