🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.54 AU - 0.66 AU

Year: 305 Days

Day: 44.6 Hours

Environment

Temp: -134 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.4

Radius: 14.9

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.59 AU - 0.87 AU

Year: 409 Days

Day: 9.9 Hours

Environment

Temp: -140 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 30,157,886 km

• M1: 185,501 km (0.097 R)
• M2: 884,722 km (0.066 R)
• M3: 1,655,450 km (0.068 R)
• M4: 2,158,847 km (0.077 R)
• M5: 3,115,525 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 970.8

Radius: 12.7

Gravity: 6.02 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.6 AU - 0.88 AU

Year: 418 Days

Day: 8.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,157,886 km

• M1: 163,062 km (0.092 R)
• M2: 660,624 km (0.117 R)
• M3: 1,353,711 km (0.097 R)
• M4: 1,910,365 km (0.099 R)
• M5: 3,055,686 km (0.086 R)
• M6: 3,669,636 km (0.111 R)
• M7: 4,350,306 km (0.059 R)
• M8: 5,145,868 km (0.095 R)
• M9: 5,964,318 km (0.083 R)
• M10: 6,367,484 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.2

Radius: 9.2

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.82 AU - 1.9 AU

Year: 1664 Days

Day: 5.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,157,886 km

• M1: 234,719 km (0.115 R)
• M2: 633,996 km (0.054 R)
• M3: 974,630 km (0.116 R)
• M4: 1,381,237 km (0.076 R)
• M5: 2,402,691 km (0.09 R)
• M6: 2,884,397 km (0.112 R)
• M7: 5,804,098 km (0.072 R)
• M8: 6,505,413 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 459.1

Radius: 11.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 4.3 AU - 4.54 AU

Year: 6096 Days

Day: 12 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,157,886 km

• M1: 145,858 km (0.05 R)
• M2: 515,514 km (0.068 R)
• M3: 1,273,826 km (0.112 R)
• M4: 2,009,249 km (0.105 R)
• M5: 2,598,964 km (0.047 R)
• M6: 3,382,408 km (0.051 R)
• M7: 3,964,942 km (0.076 R)
• M8: 5,674,397 km (0.063 R)
• M9: 6,693,158 km (0.114 R)
• M10: 7,160,801 km (0.119 R)
• M11: 8,773,915 km (0.103 R)
• M12: 9,919,386 km (0.096 R)
• M13: 10,841,956 km (0.093 R)
• M14: 12,307,267 km (0.076 R)
• M15: 14,886,634 km (0.072 R)
• M16: 15,339,616 km (0.058 R)
• M17: 16,632,890 km (0.104 R)
• M18: 21,303,335 km (0.102 R)
• M19: 21,878,988 km (0.043 R)
• M20: 23,515,738 km (0.119 R)
• M21: 24,286,167 km (0.112 R)
• M22: 27,706,722 km (0.116 R)
• M23: 28,134,273 km (0.087 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: 217 - 14,588 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit