🌌 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: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.3

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.48 AU - 0.7 AU

Year: 198 Days

Day: 12.5 Hours

Environment

Temp: 16 °C

Axial Tilt: 2.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.93

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.93 AU - 0.93 AU

Year: 392 Days

Day: 37.2 Hours

Environment

Temp: -45 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.4

Radius: 9.8

Gravity: 6.58 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.34 AU - 3.5 AU

Year: 2178 Days

Day: 8.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 21,958,389 km

• M1: 121,922 km (0.075 R)
• M2: 482,304 km (0.054 R)
• M3: 841,039 km (0.109 R)
• M4: 1,400,535 km (0.119 R)
• M5: 1,765,404 km (0.079 R)
• M6: 2,156,453 km (0.094 R)
• M7: 2,467,018 km (0.039 R)
• M8: 3,005,122 km (0.086 R)
• M9: 3,818,336 km (0.066 R)
• M10: 4,197,716 km (0.082 R)
• M11: 5,144,671 km (0.111 R)
• M12: 5,950,106 km (0.096 R)
• M13: 6,383,192 km (0.072 R)
• M14: 7,485,728 km (0.083 R)
• M15: 8,051,956 km (0.115 R)
• M16: 9,136,241 km (0.119 R)
• M17: 10,207,362 km (0.056 R)
• M18: 11,398,460 km (0.118 R)
• M19: 12,310,259 km (0.096 R)
• M20: 12,930,642 km (0.09 R)
• M21: 13,528,285 km (0.113 R)
• M22: 15,765,970 km (0.109 R)
• M23: 16,153,428 km (0.074 R)
• M24: 16,796,550 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 704.8

Radius: 8.3

Gravity: 10.23 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.56 AU - 3.76 AU

Year: 3057 Days

Day: 7.3 Hours

Environment

Temp: -167 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 21,958,389 km

• M1: 103,971 km (0.104 R)
• M2: 365,617 km (0.08 R)
• M3: 711,188 km (0.11 R)
• M4: 1,105,977 km (0.063 R)
• M5: 1,642,734 km (0.113 R)
• M6: 1,927,120 km (0.051 R)
• M7: 2,658,803 km (0.056 R)
• M8: 2,968,321 km (0.116 R)
• M9: 3,412,477 km (0.075 R)
• M10: 4,614,646 km (0.06 R)
• M11: 5,039,503 km (0.034 R)
• M12: 6,386,483 km (0.096 R)
• M13: 6,735,495 km (0.104 R)
• M14: 7,005,519 km (0.113 R)
• M15: 7,728,824 km (0.08 R)
• M16: 8,431,785 km (0.109 R)
• M17: 8,852,155 km (0.052 R)
• M18: 11,419,404 km (0.084 R)
• M19: 12,918,524 km (0.095 R)
• M20: 14,744,516 km (0.095 R)
• M21: 15,149,776 km (0.074 R)
• M22: 15,614,577 km (0.094 R)
• M23: 19,019,424 km (0.075 R)
• M24: 20,049,855 km (0.081 R)
• M25: 21,438,123 km (0.073 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: 354 - 12,064 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit