🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.05

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.56 AU - 0.78 AU

Year: 203 Days

Day: 37.9 Hours

Environment

Temp: 120 °C

Axial Tilt: 3.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 52,380,036 km

• M1: 36,651 km (0.075 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.65

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.65 AU - 1.79 AU

Year: 837 Days

Day: 13.3 Hours

Environment

Temp: -57 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.27

Radius: 1.1

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.64 AU - 1.82 AU

Year: 844 Days

Day: 23.8 Hours

Environment

Temp: -50 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,380,036 km

• M1: 1,033,123 km (0.095 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.66 AU - 2.06 AU

Year: 941 Days

Day: 42.9 Hours

Environment

Temp: -61 °C

Axial Tilt: 26.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.16

Radius: 1.06

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.22 AU - 2.4 AU

Year: 1302 Days

Day: 26.7 Hours

Environment

Temp: -95 °C

Axial Tilt: 5.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.86 AU - 3.94 AU

Year: 2325 Days

Day: 27.3 Hours

Environment

Temp: -124 °C

Axial Tilt: 7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,380,036 km

• M1: 204,650 km (0.098 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 3.18 AU - 4.1 AU

Year: 2575 Days

Day: 26.9 Hours

Environment

Temp: -121 °C

Axial Tilt: 4.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 52,380,036 km

• M1: 61,934 km (0.084 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.28

Radius: 1.1

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.51 AU - 4.73 AU

Year: 3101 Days

Day: 29.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 32.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.9

Radius: 10.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 3.76 AU - 5.82 AU

Year: 3888 Days

Day: 10.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,380,036 km

• M1: 127,009 km (0.111 R)
• M2: 482,902 km (0.083 R)
• M3: 836,402 km (0.103 R)
• M4: 1,306,139 km (0.112 R)
• M5: 1,983,518 km (0.072 R)
• M6: 2,864,799 km (0.09 R)
• M7: 3,239,243 km (0.039 R)
• M8: 3,929,936 km (0.084 R)
• M9: 4,435,876 km (0.078 R)
• M10: 5,504,902 km (0.096 R)
• M11: 7,138,212 km (0.063 R)
• M12: 7,924,498 km (0.111 R)
• M13: 9,812,872 km (0.108 R)
• M14: 10,216,338 km (0.115 R)
• M15: 10,554,728 km (0.093 R)
• M16: 11,214,455 km (0.062 R)
• M17: 11,696,459 km (0.06 R)
• M18: 12,025,425 km (0.082 R)
• M19: 13,359,090 km (0.115 R)
• M20: 14,551,534 km (0.082 R)
• M21: 16,522,636 km (0.106 R)
• M22: 16,937,321 km (0.117 R)
• M23: 17,412,145 km (0.108 R)
• M24: 17,787,486 km (0.094 R)
• M25: 18,443,473 km (0.109 R)

Planet 10 - Gas Giant

Semi-Major Axis: 9.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.3

Radius: 14.2

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 9.26 AU - 9.78 AU

Year: 10893 Days

Day: 8.2 Hours

Environment

Temp: -180 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,380,036 km

• M1: 180,265 km (0.048 R)
• M2: 1,104,780 km (0.11 R)
• M3: 1,903,334 km (0.113 R)
• M4: 3,018,586 km (0.082 R)
• M5: 3,989,326 km (0.063 R)
• M6: 5,257,916 km (0.085 R)
• M7: 6,243,318 km (0.107 R)
• M8: 8,580,784 km (0.1 R)
• M9: 11,794,147 km (0.108 R)
• M10: 15,459,444 km (0.085 R)
• M11: 17,550,523 km (0.087 R)
• M12: 20,070,200 km (0.086 R)
• M13: 27,005,108 km (0.032 R)
• M14: 31,450,409 km (0.097 R)
• M15: 32,236,097 km (0.11 R)
• M16: 41,092,441 km (0.101 R)
• M17: 44,511,799 km (0.103 R)
• M18: 49,762,685 km (0.064 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 372 - 17,499 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit