🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.57 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.5

Radius: 0.76

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.09 AU - 1.19 AU

Year: 464 Days

Day: 13.1 Hours

Environment

Temp: -3 °C

Axial Tilt: 10.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.13 AU - 1.87 AU

Year: 700 Days

Day: 38.7 Hours

Environment

Temp: -52 °C

Axial Tilt: 43.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.61

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.62 AU - 1.79 AU

Year: 844 Days

Day: 32.2 Hours

Environment

Temp: -58 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.74

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 1.89 AU - 2.85 AU

Year: 1389 Days

Day: 35 Hours

Environment

Temp: -99 °C

Axial Tilt: 47.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 66,008,139 km

• M1: 43,383 km (0.104 R)
• M2: 2,036,177 km (0.102 R)

Planet 5 - Ice Giant

Semi-Major Axis: 12.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 627.1

Radius: 7.6

Gravity: 10.86 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 10.88 AU - 14.18 AU

Year: 16890 Days

Day: 19.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 66,008,139 km

• M1: 94,546 km (0.109 R)
• M2: 575,802 km (0.064 R)
• M3: 939,026 km (0.074 R)
• M4: 1,321,099 km (0.034 R)
• M5: 1,964,669 km (0.075 R)
• M6: 2,685,132 km (0.065 R)
• M7: 3,570,452 km (0.084 R)
• M8: 3,826,714 km (0.054 R)
• M9: 4,313,056 km (0.062 R)
• M10: 4,604,174 km (0.096 R)
• M11: 5,154,395 km (0.119 R)
• M12: 6,850,834 km (0.066 R)
• M13: 7,248,166 km (0.046 R)
• M14: 10,019,018 km (0.111 R)
• M15: 12,955,026 km (0.035 R)
• M16: 15,956,109 km (0.105 R)
• M17: 16,264,131 km (0.075 R)
• M18: 17,535,862 km (0.119 R)
• M19: 20,186,437 km (0.105 R)
• M20: 21,560,045 km (0.092 R)
• M21: 22,031,428 km (0.107 R)
• M22: 23,486,866 km (0.09 R)
• M23: 25,212,776 km (0.11 R)
• M24: 25,525,885 km (0.098 R)
• M25: 27,569,541 km (0.035 R)
• M26: 30,303,592 km (0.056 R)
• M27: 36,837,578 km (0.111 R)
• M28: 38,883,329 km (0.105 R)
• M29: 39,722,573 km (0.048 R)
• M30: 52,941,789 km (0.099 R)
• M31: 55,191,442 km (0.071 R)
• M32: 56,607,236 km (0.086 R)
• M33: 62,512,462 km (0.083 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 503 - 17,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit