🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.45 AU - 0.67 AU

Year: 152 Days

Day: 15.2 Hours

Environment

Temp: 210 °C

Axial Tilt: 37.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.58 AU - 0.94 AU

Year: 241 Days

Day: 12.4 Hours

Environment

Temp: 179 °C

Axial Tilt: 9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.24

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.31 AU - 1.47 AU

Year: 596 Days

Day: 45.5 Hours

Environment

Temp: -7 °C

Axial Tilt: 22.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 1.63 AU - 2.05 AU

Year: 907 Days

Day: 22.7 Hours

Environment

Temp: -66 °C

Axial Tilt: 21.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.49 AU - 3.79 AU

Year: 2022 Days

Day: 31.1 Hours

Environment

Temp: -100 °C

Axial Tilt: 2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 54,035,186 km

• M1: 51,312 km (0.119 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.74 AU - 3.56 AU

Year: 2032 Days

Day: 39.6 Hours

Environment

Temp: -103 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 2.77 AU - 3.95 AU

Year: 2238 Days

Day: 20.9 Hours

Environment

Temp: -104 °C

Axial Tilt: 34.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,035,186 km

• M1: 574,157 km (0.052 R)
• M2: 926,460 km (0.113 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.78

Radius: 1.26

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.28 AU - 4.66 AU

Year: 2875 Days

Day: 33.4 Hours

Environment

Temp: -128 °C

Axial Tilt: 10.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.21 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 8.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.6

Radius: 10.2

Gravity: 9.26 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 7.5 AU - 9.38 AU

Year: 8911 Days

Day: 13.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,035,186 km

• M1: 133,890 km (0.099 R)
• M2: 451,187 km (0.081 R)
• M3: 812,616 km (0.079 R)
• M4: 2,460,735 km (0.063 R)
• M5: 2,892,176 km (0.12 R)
• M6: 4,527,879 km (0.117 R)
• M7: 6,402,639 km (0.112 R)
• M8: 11,166,883 km (0.114 R)
• M9: 12,531,215 km (0.111 R)
• M10: 13,131,402 km (0.109 R)
• M11: 13,813,568 km (0.037 R)
• M12: 16,352,842 km (0.092 R)
• M13: 19,664,341 km (0.11 R)
• M14: 25,621,777 km (0.057 R)
• M15: 30,592,615 km (0.038 R)
• M16: 41,068,355 km (0.115 R)
• M17: 41,594,342 km (0.065 R)
• M18: 45,263,229 km (0.106 R)
• M19: 46,532,567 km (0.063 R)
• M20: 47,104,330 km (0.082 R)

Planet 10 - Gas Giant

Semi-Major Axis: 12.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 413.2

Radius: 15

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 9.3 AU - 15.02 AU

Year: 15411 Days

Day: 8.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 54,035,186 km

• M1: 186,549 km (0.11 R)
• M2: 1,069,026 km (0.099 R)
• M3: 1,554,920 km (0.075 R)
• M4: 2,303,059 km (0.098 R)
• M5: 5,994,087 km (0.089 R)
• M6: 6,717,692 km (0.086 R)
• M7: 8,807,874 km (0.113 R)
• M8: 9,898,742 km (0.084 R)
• M9: 11,078,022 km (0.116 R)
• M10: 16,022,381 km (0.11 R)
• M11: 18,735,937 km (0.09 R)
• M12: 20,707,038 km (0.049 R)
• M13: 21,918,930 km (0.039 R)
• M14: 25,349,359 km (0.101 R)
• M15: 29,768,480 km (0.088 R)
• M16: 32,331,391 km (0.108 R)
• M17: 33,725,344 km (0.056 R)
• M18: 38,404,616 km (0.065 R)
• M19: 40,100,158 km (0.112 R)
• M20: 46,354,995 km (0.116 R)
• M21: 47,383,181 km (0.119 R)
• M22: 49,484,881 km (0.073 R)
• M23: 52,435,849 km (0.117 R)

Kuiper Belt

Range: 30.2 - 51.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 172 - 19,414 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit