🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.53 AU - 0.65 AU

Year: 161 Days

Day: 34.5 Hours

Environment

Temp: 237 °C

Axial Tilt: 19.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.07

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 0.52 AU - 0.74 AU

Year: 177 Days

Day: 22.8 Hours

Environment

Temp: 211 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 80,911,947 km

• M1: 40,840 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.62 AU - 0.82 AU

Year: 217 Days

Day: 36 Hours

Environment

Temp: 187 °C

Axial Tilt: 14.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.71

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.07 AU - 1.35 AU

Year: 472 Days

Day: 29.4 Hours

Environment

Temp: 20 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.7 AU - 2.94 AU

Year: 1680 Days

Day: 24.8 Hours

Environment

Temp: -92 °C

Axial Tilt: 19.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,911,947 km

• M1: 25,432 km (0.042 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.17

Radius: 1.59

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 4.03 AU - 4.55 AU

Year: 3152 Days

Day: 25.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 80,911,947 km

• M1: 2,852,083 km (0.041 R)

Asteroid Belt

Center: 5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 274.9

Radius: 15

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 5.57 AU - 5.85 AU

Year: 4841 Days

Day: 5.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,911,947 km

• M1: 191,635 km (0.075 R)
• M2: 888,013 km (0.12 R)
• M3: 1,611,468 km (0.099 R)
• M4: 2,276,281 km (0.045 R)
• M5: 2,920,300 km (0.079 R)
• M6: 7,567,109 km (0.054 R)
• M7: 9,747,947 km (0.055 R)
• M8: 10,720,183 km (0.106 R)
• M9: 11,375,871 km (0.117 R)
• M10: 18,597,708 km (0.041 R)
• M11: 19,425,433 km (0.046 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 690.9

Radius: 5.8

Gravity: 20.54 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 12.16 AU - 19.02 AU

Year: 21838 Days

Day: 23.8 Hours

Environment

Temp: -185 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,911,947 km

• M1: 76,295 km (0.068 R)
• M2: 308,471 km (0.106 R)
• M3: 559,496 km (0.071 R)
• M4: 1,428,360 km (0.108 R)
• M5: 1,885,083 km (0.081 R)
• M6: 4,649,502 km (0.07 R)
• M7: 5,976,285 km (0.114 R)
• M8: 6,277,875 km (0.063 R)
• M9: 8,200,207 km (0.083 R)
• M10: 10,298,916 km (0.108 R)
• M11: 12,039,337 km (0.085 R)
• M12: 12,451,180 km (0.077 R)
• M13: 13,375,695 km (0.117 R)
• M14: 16,506,629 km (0.093 R)
• M15: 21,463,106 km (0.056 R)
• M16: 23,207,716 km (0.094 R)
• M17: 23,738,340 km (0.087 R)
• M18: 34,863,036 km (0.107 R)
• M19: 36,263,870 km (0.082 R)
• M20: 38,140,426 km (0.088 R)
• M21: 43,193,094 km (0.115 R)
• M22: 64,260,813 km (0.097 R)
• M23: 78,273,495 km (0.059 R)
• M24: 78,748,918 km (0.115 R)

Kuiper Belt

Range: 30.9 - 45.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 224 - 10,958 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit