🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.45 AU - 0.65 AU

Year: 268 Days

Day: 25.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 5,263,394 km

• M1: 45,777 km (0.076 R)
• M2: 248,931 km (0.077 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.77

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 34.3 Hours

Environment

Temp: -119 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.8

Radius: 14.1

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.62 AU - 0.92 AU

Year: 443 Days

Day: 6.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 5,263,394 km

• M1: 192,981 km (0.06 R)
• M2: 804,388 km (0.083 R)
• M3: 1,520,962 km (0.085 R)
• M4: 2,369,481 km (0.115 R)
• M5: 2,820,369 km (0.074 R)
• M6: 3,275,445 km (0.111 R)
• M7: 4,082,675 km (0.06 R)
• M8: 4,655,486 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 84.4

Radius: 14.9

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.87 AU - 0.99 AU

Year: 588 Days

Day: 8.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 15.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 5,263,394 km

• M1: 185,352 km (0.102 R)
• M2: 650,152 km (0.052 R)
• M3: 1,138,290 km (0.098 R)
• M4: 1,623,436 km (0.088 R)
• M5: 2,446,972 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.6

Radius: 14.3

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.86 AU - 1.43 AU

Year: 798 Days

Day: 7.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 5,263,394 km

• M1: 177,872 km (0.059 R)
• M2: 665,112 km (0.041 R)
• M3: 1,180,477 km (0.112 R)
• M4: 1,943,426 km (0.047 R)
• M5: 2,422,588 km (0.088 R)
• M6: 2,919,402 km (0.109 R)
• M7: 3,387,644 km (0.117 R)
• M8: 3,936,818 km (0.098 R)
• M9: 4,579,041 km (0.107 R)
• M10: 5,692,947 km (0.087 R)
• M11: 6,560,016 km (0.078 R)
• M12: 7,633,082 km (0.096 R)
• M13: 8,635,986 km (0.119 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.5

Radius: 14.9

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.34 AU - 1.88 AU

Year: 1340 Days

Day: 12.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 5,263,394 km

• M1: 185,950 km (0.114 R)
• M2: 812,466 km (0.05 R)
• M3: 1,407,267 km (0.069 R)
• M4: 2,689,022 km (0.114 R)
• M5: 3,437,909 km (0.109 R)
• M6: 4,921,022 km (0.116 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 419 - 17,777 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit