🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.11 AU - 1.27 AU

Year: 481 Days

Day: 37.8 Hours

Environment

Temp: 2 °C

Axial Tilt: 12.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 89,468,348 km

• M1: 39,943 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.06 AU - 2.2 AU

Year: 1153 Days

Day: 26.5 Hours

Environment

Temp: -72 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 7.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.8

Radius: 10.1

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 5.85 AU - 8.97 AU

Year: 7481 Days

Day: 9.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,468,348 km

• M1: 125,662 km (0.073 R)
• M2: 456,722 km (0.094 R)
• M3: 1,339,350 km (0.065 R)
• M4: 2,384,291 km (0.091 R)
• M5: 3,383,605 km (0.088 R)
• M6: 4,003,389 km (0.075 R)
• M7: 6,497,634 km (0.1 R)
• M8: 8,009,021 km (0.12 R)
• M9: 9,242,755 km (0.099 R)
• M10: 9,788,637 km (0.064 R)
• M11: 10,307,892 km (0.09 R)
• M12: 10,845,397 km (0.063 R)
• M13: 18,124,829 km (0.059 R)
• M14: 24,091,091 km (0.104 R)
• M15: 36,026,309 km (0.042 R)

Planet 4 - Ice Giant

Semi-Major Axis: 19.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 457.6

Radius: 6.7

Gravity: 10.19 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 17.16 AU - 21.24 AU

Year: 31200 Days

Day: 21.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 89,468,348 km

• M1: 85,570 km (0.067 R)
• M2: 323,431 km (0.094 R)
• M3: 959,371 km (0.095 R)
• M4: 1,243,308 km (0.097 R)
• M5: 2,619,459 km (0.112 R)
• M6: 4,537,902 km (0.05 R)
• M7: 4,872,851 km (0.031 R)
• M8: 5,264,199 km (0.095 R)
• M9: 6,198,887 km (0.102 R)
• M10: 9,482,560 km (0.096 R)
• M11: 13,315,557 km (0.082 R)
• M12: 14,394,158 km (0.098 R)
• M13: 14,873,768 km (0.04 R)
• M14: 15,117,613 km (0.079 R)
• M15: 19,198,044 km (0.1 R)
• M16: 19,487,217 km (0.102 R)
• M17: 20,074,089 km (0.037 R)
• M18: 21,697,077 km (0.084 R)
• M19: 30,611,165 km (0.096 R)
• M20: 34,146,013 km (0.09 R)
• M21: 36,598,820 km (0.108 R)
• M22: 51,007,937 km (0.102 R)
• M23: 57,734,157 km (0.115 R)
• M24: 68,557,712 km (0.103 R)
• M25: 72,912,506 km (0.108 R)
• M26: 87,869,002 km (0.054 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: 216 - 19,836 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit