🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.45 AU - 0.71 AU

Year: 162 Days

Day: 20 Hours

Environment

Temp: 237 °C

Axial Tilt: 40 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,358,711 km

• M1: 45,029 km (0.037 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.73 AU - 0.77 AU

Year: 238 Days

Day: 30.6 Hours

Environment

Temp: 101 °C

Axial Tilt: 3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,358,711 km

• M1: 484,248 km (0.083 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.74 AU - 0.86 AU

Year: 263 Days

Day: 33.7 Hours

Environment

Temp: 85 °C

Axial Tilt: 3.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.85

Radius: 1.71

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.7 AU - 1.02 AU

Year: 293 Days

Day: 15.1 Hours

Environment

Temp: 171 °C

Axial Tilt: 155.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.01 AU - 1.29 AU

Year: 453 Days

Day: 41 Hours

Environment

Temp: 4 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.52 AU - 2 AU

Year: 857 Days

Day: 17.2 Hours

Environment

Temp: -65 °C

Axial Tilt: 39.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.91 AU - 2.59 AU

Year: 1239 Days

Day: 34.7 Hours

Environment

Temp: -84 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.86

Radius: 1.72

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.32 AU - 2.36 AU

Year: 1314 Days

Day: 46.6 Hours

Environment

Temp: -75 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.54 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.1

Radius: 11.9

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 3.59 AU - 5.87 AU

Year: 3776 Days

Day: 8 Hours

Environment

Temp: -130 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,358,711 km

• M1: 148,102 km (0.077 R)
• M2: 529,576 km (0.055 R)
• M3: 976,724 km (0.11 R)
• M4: 1,490,743 km (0.096 R)
• M5: 2,051,884 km (0.095 R)
• M6: 2,477,191 km (0.085 R)
• M7: 3,062,268 km (0.093 R)
• M8: 3,508,519 km (0.116 R)
• M9: 4,533,264 km (0.114 R)
• M10: 6,262,017 km (0.08 R)
• M11: 10,099,053 km (0.101 R)
• M12: 12,867,810 km (0.052 R)
• M13: 14,037,666 km (0.078 R)
• M14: 14,525,056 km (0.084 R)
• M15: 14,922,986 km (0.106 R)
• M16: 15,379,409 km (0.074 R)
• M17: 16,696,319 km (0.063 R)
• M18: 18,722,772 km (0.025 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.6

Radius: 4.2

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 14.65 AU - 20.47 AU

Year: 27012 Days

Day: 18 Hours

Environment

Temp: -207 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,358,711 km

• M1: 53,706 km (0.065 R)
• M2: 206,744 km (0.098 R)
• M3: 830,567 km (0.096 R)
• M4: 1,160,580 km (0.082 R)
• M5: 3,215,606 km (0.079 R)
• M6: 3,710,177 km (0.099 R)
• M7: 4,283,735 km (0.102 R)
• M8: 5,391,208 km (0.113 R)
• M9: 6,124,836 km (0.092 R)
• M10: 7,346,901 km (0.097 R)
• M11: 13,277,858 km (0.086 R)
• M12: 15,021,122 km (0.107 R)
• M13: 19,614,674 km (0.032 R)
• M14: 22,684,423 km (0.104 R)
• M15: 23,617,016 km (0.114 R)
• M16: 24,574,741 km (0.056 R)
• M17: 26,465,509 km (0.119 R)
• M18: 27,603,201 km (0.108 R)
• M19: 45,196,808 km (0.054 R)
• M20: 47,118,692 km (0.083 R)
• M21: 48,940,345 km (0.099 R)
• M22: 53,372,631 km (0.085 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 380 - 18,781 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit