🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.46 AU - 0.7 AU

Year: 167 Days

Day: 43 Hours

Environment

Temp: 191 °C

Axial Tilt: 32.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 35,983,173 km

• M1: 61,934 km (0.086 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.65 AU - 0.73 AU

Year: 217 Days

Day: 35.6 Hours

Environment

Temp: 139 °C

Axial Tilt: 38.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.45

Radius: 1.64

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.77 AU - 0.97 AU

Year: 307 Days

Day: 37.2 Hours

Environment

Temp: 40 °C

Axial Tilt: 39.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.24

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.99 AU - 1.15 AU

Year: 419 Days

Day: 30.4 Hours

Environment

Temp: 5 °C

Axial Tilt: 36.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.19 AU - 1.91 AU

Year: 731 Days

Day: 24.4 Hours

Environment

Temp: -59 °C

Axial Tilt: 5.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,983,173 km

• M1: 1,039,705 km (0.089 R)

Planet 6 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.39 AU - 2.15 AU

Year: 892 Days

Day: 38.4 Hours

Environment

Temp: -64 °C

Axial Tilt: 23.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,983,173 km

• M1: 23,936 km (0.04 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.88 AU - 1.92 AU

Year: 992 Days

Day: 24.6 Hours

Environment

Temp: -78 °C

Axial Tilt: 10.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.46 AU - 2.44 AU

Year: 1031 Days

Day: 43 Hours

Environment

Temp: -85 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.4 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 10.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.6

Radius: 9.5

Gravity: 1.76 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 9.15 AU - 12.53 AU

Year: 13517 Days

Day: 7.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,983,173 km

• M1: 118,182 km (0.11 R)
• M2: 469,588 km (0.068 R)
• M3: 880,383 km (0.083 R)
• M4: 1,777,522 km (0.053 R)
• M5: 2,536,133 km (0.11 R)
• M6: 4,737,166 km (0.085 R)
• M7: 5,427,411 km (0.106 R)
• M8: 5,955,940 km (0.091 R)
• M9: 6,282,662 km (0.094 R)
• M10: 7,261,630 km (0.077 R)
• M11: 8,020,989 km (0.118 R)
• M12: 8,748,783 km (0.109 R)
• M13: 11,849,049 km (0.113 R)
• M14: 13,008,881 km (0.053 R)
• M15: 13,898,989 km (0.083 R)
• M16: 18,688,364 km (0.118 R)
• M17: 19,107,837 km (0.088 R)
• M18: 20,923,207 km (0.04 R)
• M19: 22,534,675 km (0.034 R)
• M20: 27,234,143 km (0.119 R)
• M21: 28,873,436 km (0.083 R)
• M22: 31,356,013 km (0.096 R)
• M23: 33,667,749 km (0.111 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 396 - 12,455 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit