🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.95

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.78 AU - 1.28 AU

Year: 398 Days

Day: 20.9 Hours

Environment

Temp: -7 °C

Axial Tilt: 12.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 1.57 AU - 2.09 AU

Year: 943 Days

Day: 22.2 Hours

Environment

Temp: -66 °C

Axial Tilt: 20.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 21,618,532 km

• M1: 109,506 km (0.083 R)

Planet 3 - Terrestrial

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 2.91 AU - 4.45 AU

Year: 2688 Days

Day: 26 Hours

Environment

Temp: -135 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 21,618,532 km

• M1: 157,227 km (0.074 R)
• M2: 1,175,091 km (0.05 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 3.08 AU - 4.8 AU

Year: 2978 Days

Day: 31.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 25.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.72 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.2

Radius: 11.5

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 4.44 AU - 6.54 AU

Year: 4898 Days

Day: 11.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 21,618,532 km

• M1: 143,016 km (0.095 R)
• M2: 901,626 km (0.06 R)
• M3: 1,318,256 km (0.054 R)
• M4: 1,937,143 km (0.087 R)
• M5: 2,356,765 km (0.112 R)
• M6: 3,400,509 km (0.058 R)
• M7: 4,140,719 km (0.118 R)
• M8: 4,638,880 km (0.09 R)
• M9: 5,104,429 km (0.116 R)
• M10: 6,378,404 km (0.108 R)
• M11: 7,630,090 km (0.063 R)
• M12: 10,417,697 km (0.087 R)
• M13: 10,813,383 km (0.091 R)
• M14: 14,013,431 km (0.085 R)
• M15: 15,494,749 km (0.057 R)
• M16: 18,535,326 km (0.118 R)
• M17: 19,117,261 km (0.07 R)
• M18: 19,711,464 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.5

Radius: 13.1

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 5.33 AU - 6.03 AU

Year: 5155 Days

Day: 10.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,618,532 km

• M1: 164,707 km (0.087 R)
• M2: 742,155 km (0.118 R)
• M3: 1,294,321 km (0.059 R)
• M4: 1,707,510 km (0.108 R)
• M5: 2,641,001 km (0.087 R)
• M6: 5,080,942 km (0.1 R)
• M7: 6,275,481 km (0.074 R)
• M8: 8,786,930 km (0.083 R)
• M9: 10,383,887 km (0.104 R)
• M10: 13,573,314 km (0.087 R)
• M11: 14,784,309 km (0.034 R)
• M12: 15,596,476 km (0.09 R)
• M13: 17,420,822 km (0.108 R)
• M14: 18,154,749 km (0.096 R)
• M15: 18,733,244 km (0.044 R)
• M16: 19,204,926 km (0.11 R)
• M17: 19,927,184 km (0.115 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: 444 - 16,051 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit