🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.74

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.51 AU - 0.71 AU

Year: 170 Days

Day: 35.6 Hours

Environment

Temp: 200 °C

Axial Tilt: 38.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,078,484 km

• M1: 109,506 km (0.088 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.57 AU - 0.73 AU

Year: 187 Days

Day: 19.2 Hours

Environment

Temp: 233 °C

Axial Tilt: 32.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 47,078,484 km

• M1: 109,356 km (0.029 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.06 AU - 1.2 AU

Year: 428 Days

Day: 28.8 Hours

Environment

Temp: 34 °C

Axial Tilt: 37.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 1.97 AU - 2.37 AU

Year: 1139 Days

Day: 22.6 Hours

Environment

Temp: -57 °C

Axial Tilt: 31.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2.94 AU - 4.54 AU

Year: 2578 Days

Day: 25.2 Hours

Environment

Temp: -123 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.17 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753

Radius: 13.1

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 5.37 AU - 7.83 AU

Year: 6044 Days

Day: 13.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 9.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 47,078,484 km

• M1: 163,062 km (0.044 R)
• M2: 574,605 km (0.114 R)
• M3: 986,299 km (0.026 R)
• M4: 2,156,005 km (0.106 R)
• M5: 3,140,957 km (0.086 R)
• M6: 3,747,875 km (0.036 R)
• M7: 5,112,208 km (0.114 R)
• M8: 6,083,397 km (0.09 R)
• M9: 6,511,547 km (0.105 R)
• M10: 7,614,980 km (0.045 R)
• M11: 11,279,679 km (0.057 R)
• M12: 13,688,056 km (0.046 R)
• M13: 15,191,664 km (0.112 R)
• M14: 18,252,735 km (0.1 R)
• M15: 19,928,082 km (0.089 R)
• M16: 22,318,357 km (0.114 R)
• M17: 23,905,889 km (0.116 R)
• M18: 24,810,657 km (0.069 R)
• M19: 27,483,074 km (0.075 R)
• M20: 30,437,482 km (0.102 R)
• M21: 30,917,542 km (0.112 R)
• M22: 31,696,198 km (0.081 R)
• M23: 32,989,173 km (0.105 R)
• M24: 35,256,927 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 99

Radius: 4.9

Gravity: 4.12 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 13.94 AU - 20.62 AU

Year: 25604 Days

Day: 22.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,078,484 km

• M1: 61,485 km (0.069 R)
• M2: 260,899 km (0.109 R)
• M3: 471,981 km (0.074 R)
• M4: 719,117 km (0.091 R)
• M5: 887,265 km (0.09 R)
• M6: 1,381,836 km (0.116 R)
• M7: 2,254,590 km (0.117 R)
• M8: 2,914,765 km (0.095 R)
• M9: 3,904,504 km (0.069 R)
• M10: 4,788,329 km (0.064 R)
• M11: 5,005,096 km (0.118 R)
• M12: 5,293,221 km (0.104 R)
• M13: 6,188,415 km (0.09 R)
• M14: 7,220,491 km (0.031 R)
• M15: 9,377,692 km (0.056 R)
• M16: 10,369,825 km (0.06 R)
• M17: 11,212,360 km (0.06 R)
• M18: 19,975,953 km (0.104 R)
• M19: 26,944,970 km (0.049 R)
• M20: 36,434,711 km (0.086 R)
• M21: 39,739,478 km (0.082 R)

Kuiper Belt

Range: 30.8 - 60.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 288 - 19,517 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit