🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.73 AU - 0.87 AU

Year: 254 Days

Day: 15.6 Hours

Environment

Temp: 178 °C

Axial Tilt: 22.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 35,369,591 km

• M1: 29,920 km (0.092 R)
• M2: 83,027 km (0.047 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.78 AU - 1.23 AU

Year: 355 Days

Day: 30.6 Hours

Environment

Temp: 166 °C

Axial Tilt: 32.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 35,369,591 km

• M1: 28,573 km (0.119 R)
• M2: 146,606 km (0.102 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.19

Radius: 1.07

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 1.19 AU - 1.75 AU

Year: 632 Days

Day: 34.2 Hours

Environment

Temp: -17 °C

Axial Tilt: 12.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.26 AU - 3.04 AU

Year: 1530 Days

Day: 36.7 Hours

Environment

Temp: -80 °C

Axial Tilt: 43.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,369,591 km

• M1: 22,290 km (0.086 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 2.11 AU - 3.31 AU

Year: 1583 Days

Day: 29.9 Hours

Environment

Temp: -91 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.49

Radius: 1.65

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 2.93 AU - 4.77 AU

Year: 2680 Days

Day: 14.3 Hours

Environment

Temp: -110 °C

Axial Tilt: 39.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 3.86 AU - 4.04 AU

Year: 2785 Days

Day: 24.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 4.03 AU - 5.99 AU

Year: 3978 Days

Day: 21.6 Hours

Environment

Temp: -131 °C

Axial Tilt: 33.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,369,591 km

• M1: 42,187 km (0.099 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.1

Radius: 14.3

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 5.61 AU - 7.07 AU

Year: 5663 Days

Day: 5.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 35,369,591 km

• M1: 178,171 km (0.104 R)
• M2: 1,196,035 km (0.083 R)
• M3: 1,712,746 km (0.096 R)
• M4: 2,297,674 km (0.114 R)
• M5: 3,716,161 km (0.071 R)
• M6: 4,420,318 km (0.025 R)
• M7: 4,901,125 km (0.11 R)
• M8: 5,688,609 km (0.092 R)
• M9: 6,161,488 km (0.071 R)
• M10: 6,729,511 km (0.034 R)
• M11: 8,893,893 km (0.106 R)
• M12: 9,931,803 km (0.093 R)
• M13: 11,390,382 km (0.079 R)
• M14: 12,300,386 km (0.094 R)
• M15: 12,880,077 km (0.094 R)
• M16: 18,263,656 km (0.1 R)
• M17: 19,439,795 km (0.062 R)
• M18: 20,739,501 km (0.042 R)
• M19: 22,483,812 km (0.119 R)
• M20: 30,160,277 km (0.048 R)
• M21: 30,925,620 km (0.106 R)
• M22: 34,635,797 km (0.082 R)

Kuiper Belt

Range: 30.9 - 46.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 170 - 11,420 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit