🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 1000

Radius: 11.3

Gravity: 7.83 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.78 AU - 0.92 AU

Year: 506 Days

Day: 9.4 Hours

Environment

Temp: -159 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 78,829,580 km

• M1: 140,472 km (0.076 R)
• M2: 516,262 km (0.064 R)
• M3: 869,612 km (0.116 R)
• M4: 1,368,073 km (0.106 R)
• M5: 1,805,198 km (0.083 R)
• M6: 2,163,335 km (0.119 R)
• M7: 2,559,021 km (0.081 R)
• M8: 2,921,646 km (0.07 R)
• M9: 3,306,412 km (0.116 R)
• M10: 3,821,478 km (0.079 R)
• M11: 4,358,983 km (0.05 R)
• M12: 4,718,167 km (0.103 R)
• M13: 5,676,641 km (0.086 R)
• M14: 6,437,496 km (0.105 R)
• M15: 7,179,202 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.6

Radius: 14.3

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.92 AU - 1.28 AU

Year: 745 Days

Day: 10.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,829,580 km

• M1: 177,872 km (0.109 R)
• M2: 649,404 km (0.08 R)
• M3: 1,304,643 km (0.055 R)
• M4: 1,936,544 km (0.12 R)
• M5: 2,485,868 km (0.073 R)
• M6: 3,152,027 km (0.086 R)
• M7: 3,757,001 km (0.098 R)
• M8: 4,293,160 km (0.111 R)
• M9: 5,313,417 km (0.114 R)
• M10: 5,871,417 km (0.103 R)
• M11: 7,546,016 km (0.09 R)
• M12: 8,404,857 km (0.11 R)
• M13: 9,138,036 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347.4

Radius: 13.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.55 AU - 5.75 AU

Year: 6474 Days

Day: 6.4 Hours

Environment

Temp: -205 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 78,829,580 km

• M1: 172,935 km (0.09 R)
• M2: 738,714 km (0.065 R)
• M3: 1,601,445 km (0.098 R)
• M4: 2,545,857 km (0.111 R)
• M5: 4,240,501 km (0.104 R)
• M6: 5,113,106 km (0.117 R)
• M7: 5,663,626 km (0.091 R)
• M8: 6,102,247 km (0.105 R)
• M9: 8,053,901 km (0.078 R)
• M10: 9,192,640 km (0.099 R)
• M11: 12,025,275 km (0.082 R)
• M12: 14,138,944 km (0.083 R)
• M13: 14,840,707 km (0.073 R)
• M14: 16,139,217 km (0.08 R)
• M15: 18,576,016 km (0.109 R)
• M16: 20,218,302 km (0.059 R)
• M17: 21,529,677 km (0.096 R)
• M18: 24,016,891 km (0.096 R)

Planet 4 - Ice Giant

Semi-Major Axis: 7.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.6

Radius: 7

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 6.81 AU - 8.03 AU

Year: 13050 Days

Day: 24.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,829,580 km

• M1: 87,515 km (0.086 R)
• M2: 382,073 km (0.061 R)
• M3: 667,207 km (0.034 R)
• M4: 934,239 km (0.089 R)
• M5: 1,211,144 km (0.108 R)
• M6: 1,737,878 km (0.091 R)
• M7: 2,143,289 km (0.114 R)
• M8: 2,631,127 km (0.078 R)
• M9: 4,334,299 km (0.085 R)
• M10: 4,791,171 km (0.093 R)
• M11: 5,982,120 km (0.111 R)
• M12: 6,394,112 km (0.063 R)
• M13: 7,027,061 km (0.104 R)
• M14: 11,163,143 km (0.084 R)
• M15: 11,787,863 km (0.109 R)
• M16: 14,991,801 km (0.085 R)
• M17: 17,050,567 km (0.055 R)
• M18: 17,273,767 km (0.085 R)
• M19: 40,693,314 km (0.114 R)
• M20: 41,092,291 km (0.049 R)
• M21: 44,801,271 km (0.097 R)
• M22: 50,237,807 km (0.093 R)
• M23: 50,543,585 km (0.05 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 888.4

Radius: 5.8

Gravity: 26.41 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 9 AU - 9.74 AU

Year: 18519 Days

Day: 22.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 78,829,580 km

• M1: 73,004 km (0.034 R)
• M2: 265,835 km (0.077 R)
• M3: 638,334 km (0.077 R)
• M4: 1,537,717 km (0.045 R)
• M5: 2,012,839 km (0.071 R)
• M6: 2,373,221 km (0.12 R)
• M7: 3,565,964 km (0.068 R)
• M8: 3,746,679 km (0.106 R)
• M9: 4,325,772 km (0.093 R)
• M10: 5,460,621 km (0.12 R)
• M11: 6,599,660 km (0.095 R)
• M12: 7,638,467 km (0.102 R)
• M13: 12,891,597 km (0.03 R)
• M14: 16,165,097 km (0.077 R)
• M15: 28,022,823 km (0.092 R)
• M16: 28,739,397 km (0.059 R)
• M17: 31,728,512 km (0.077 R)
• M18: 41,617,828 km (0.11 R)
• M19: 53,743,185 km (0.089 R)
• M20: 64,242,113 km (0.062 R)
• M21: 76,028,181 km (0.11 R)
• M22: 78,122,850 km (0.116 R)
• M23: 78,593,485 km (0.064 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 13,722 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit