🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.95

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.46 AU - 0.72 AU

Year: 297 Days

Day: 28.8 Hours

Environment

Temp: -122 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.6 AU - 0.62 AU

Year: 313 Days

Day: 20.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 48.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 636.4

Radius: 14

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.72 AU - 1.02 AU

Year: 532 Days

Day: 11.7 Hours

Environment

Temp: -146 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 25,713,403 km

• M1: 174,880 km (0.074 R)
• M2: 638,035 km (0.087 R)
• M3: 1,367,624 km (0.058 R)
• M4: 1,903,483 km (0.102 R)
• M5: 2,403,589 km (0.078 R)
• M6: 2,969,817 km (0.116 R)
• M7: 3,523,479 km (0.119 R)
• M8: 5,078,698 km (0.053 R)
• M9: 5,752,038 km (0.076 R)
• M10: 6,239,727 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.5

Radius: 8.7

Gravity: 13.13 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.68 AU - 1.08 AU

Year: 542 Days

Day: 8.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 25,713,403 km

• M1: 109,206 km (0.077 R)
• M2: 477,516 km (0.097 R)
• M3: 971,040 km (0.048 R)
• M4: 1,665,024 km (0.045 R)
• M5: 2,059,813 km (0.116 R)
• M6: 2,757,538 km (0.111 R)
• M7: 3,313,144 km (0.055 R)
• M8: 3,590,798 km (0.114 R)
• M9: 3,912,732 km (0.03 R)
• M10: 4,330,709 km (0.075 R)
• M11: 4,962,161 km (0.1 R)
• M12: 6,926,082 km (0.062 R)
• M13: 7,766,373 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.5

Radius: 12.8

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.76 AU - 2.76 AU

Year: 2229 Days

Day: 8.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,713,403 km

• M1: 159,172 km (0.09 R)
• M2: 688,898 km (0.032 R)
• M3: 1,473,689 km (0.104 R)
• M4: 2,404,935 km (0.096 R)
• M5: 3,393,329 km (0.073 R)
• M6: 4,416,578 km (0.091 R)
• M7: 5,339,597 km (0.113 R)
• M8: 5,847,182 km (0.092 R)
• M9: 7,510,412 km (0.114 R)
• M10: 8,060,034 km (0.091 R)
• M11: 8,950,889 km (0.087 R)
• M12: 9,502,906 km (0.051 R)
• M13: 10,043,103 km (0.111 R)
• M14: 13,897,493 km (0.039 R)
• M15: 14,951,559 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.7

Radius: 14.7

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.12 AU - 2.6 AU

Year: 2378 Days

Day: 12.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 25,713,403 km

• M1: 183,108 km (0.108 R)
• M2: 775,067 km (0.082 R)
• M3: 1,846,337 km (0.11 R)
• M4: 2,444,429 km (0.104 R)
• M5: 3,632,685 km (0.068 R)
• M6: 5,083,186 km (0.102 R)
• M7: 6,606,092 km (0.091 R)
• M8: 8,650,646 km (0.114 R)
• M9: 9,239,464 km (0.118 R)
• M10: 10,041,458 km (0.109 R)
• M11: 10,614,418 km (0.047 R)
• M12: 11,249,760 km (0.073 R)
• M13: 12,905,060 km (0.12 R)
• M14: 15,308,350 km (0.119 R)
• M15: 19,776,689 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 816.9

Radius: 11.1

Gravity: 6.63 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 2.83 AU - 3.39 AU

Year: 3598 Days

Day: 12.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 25,713,403 km

• M1: 138,079 km (0.036 R)
• M2: 500,554 km (0.09 R)
• M3: 983,905 km (0.098 R)
• M4: 1,702,274 km (0.051 R)
• M5: 2,407,030 km (0.055 R)
• M6: 3,037,734 km (0.086 R)
• M7: 4,255,461 km (0.049 R)
• M8: 4,924,463 km (0.103 R)
• M9: 5,390,610 km (0.041 R)
• M10: 5,886,227 km (0.091 R)
• M11: 8,394,535 km (0.104 R)
• M12: 9,723,862 km (0.086 R)
• M13: 10,293,081 km (0.105 R)
• M14: 11,101,209 km (0.047 R)
• M15: 12,089,154 km (0.075 R)
• M16: 13,331,115 km (0.067 R)
• M17: 14,499,026 km (0.047 R)
• M18: 14,920,892 km (0.088 R)
• M19: 15,459,594 km (0.056 R)
• M20: 21,177,823 km (0.102 R)
• M21: 25,180,014 km (0.101 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 13,301 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit