🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.73

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.63 AU - 0.67 AU

Year: 224 Days

Day: 40.6 Hours

Environment

Temp: 1 °C

Axial Tilt: 1.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.74

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.99 AU - 1.09 AU

Year: 453 Days

Day: 19.6 Hours

Environment

Temp: -65 °C

Axial Tilt: 7.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.37 AU - 1.79 AU

Year: 849 Days

Day: 45.1 Hours

Environment

Temp: -87 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,206,484 km

• M1: 1,437,785 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 420.8

Radius: 10.6

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.48 AU - 3.5 AU

Year: 2787 Days

Day: 14.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,206,484 km

• M1: 135,087 km (0.075 R)
• M2: 602,431 km (0.095 R)
• M3: 1,269,637 km (0.112 R)
• M4: 1,746,406 km (0.106 R)
• M5: 2,262,817 km (0.03 R)
• M6: 2,642,946 km (0.108 R)
• M7: 3,033,994 km (0.081 R)
• M8: 3,748,025 km (0.11 R)
• M9: 5,391,358 km (0.073 R)
• M10: 6,545,206 km (0.081 R)
• M11: 7,498,743 km (0.078 R)
• M12: 8,132,439 km (0.12 R)
• M13: 9,099,290 km (0.058 R)
• M14: 10,105,037 km (0.116 R)
• M15: 10,690,862 km (0.056 R)
• M16: 11,651,430 km (0.054 R)
• M17: 12,584,921 km (0.116 R)
• M18: 16,321,876 km (0.081 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50

Radius: 7.9

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 15.01 AU - 16.19 AU

Year: 26340 Days

Day: 19.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,206,484 km

• M1: 99,183 km (0.104 R)
• M2: 605,572 km (0.114 R)
• M3: 890,706 km (0.052 R)
• M4: 2,705,477 km (0.112 R)
• M5: 3,065,111 km (0.096 R)
• M6: 3,617,426 km (0.081 R)
• M7: 4,636,786 km (0.093 R)
• M8: 6,032,534 km (0.102 R)
• M9: 6,683,734 km (0.113 R)
• M10: 7,230,215 km (0.08 R)
• M11: 8,705,549 km (0.095 R)
• M12: 9,402,077 km (0.11 R)
• M13: 12,946,499 km (0.114 R)
• M14: 14,086,285 km (0.064 R)
• M15: 21,574,556 km (0.097 R)
• M16: 23,833,484 km (0.055 R)
• M17: 24,762,487 km (0.096 R)
• M18: 28,251,259 km (0.089 R)
• M19: 31,851,481 km (0.078 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 317 - 15,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit