🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.8 AU - 1.2 AU

Year: 355 Days

Day: 23.1 Hours

Environment

Temp: 96 °C

Axial Tilt: 4.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 24,826,141 km

• M1: 278,102 km (0.089 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.1 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.95 AU - 1.25 AU

Year: 409 Days

Day: 26.7 Hours

Environment

Temp: 44 °C

Axial Tilt: 49.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.78

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 1.35 AU - 1.65 AU

Year: 652 Days

Day: 27.1 Hours

Environment

Temp: -5 °C

Axial Tilt: 14.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.56 AU - 2.46 AU

Year: 1011 Days

Day: 33.5 Hours

Environment

Temp: -50 °C

Axial Tilt: 165.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 24,826,141 km

• M1: 804,388 km (0.109 R)
• M2: 842,386 km (0.034 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.15 AU - 3.41 AU

Year: 1644 Days

Day: 19.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,826,141 km

• M1: 554,559 km (0.101 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1

Radius: 1

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.2 AU - 4.54 AU

Year: 2701 Days

Day: 26.9 Hours

Environment

Temp: -107 °C

Axial Tilt: 42.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,826,141 km

• M1: 299,345 km (0.04 R)

Planet 7 - Terrestrial

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 3.19 AU - 4.63 AU

Year: 2743 Days

Day: 40.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 1.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 24,826,141 km

• M1: 3,348,300 km (0.039 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.16 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.51 AU - 4.81 AU

Year: 3010 Days

Day: 34 Hours

Environment

Temp: -115 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.4

Radius: 8.7

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 8.75 AU - 12.35 AU

Year: 12157 Days

Day: 7.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 24,826,141 km

• M1: 200,162 km (0.076 R)
• M2: 328,667 km (0.097 R)
• M3: 480,658 km (0.092 R)
• M4: 626,067 km (0.09 R)
• M5: 937,231 km (0.078 R)
• M6: 1,047,185 km (0.088 R)
• M7: 1,200,523 km (0.074 R)
• M8: 1,266,795 km (0.076 R)
• M9: 1,501,364 km (0.088 R)
• M10: 1,602,044 km (0.055 R)
• M11: 1,764,806 km (0.047 R)
• M12: 1,933,253 km (0.039 R)
• M13: 2,107,086 km (0.118 R)
• M14: 2,319,066 km (0.095 R)
• M15: 2,452,956 km (0.079 R)
• M16: 2,624,096 km (0.091 R)
• M17: 2,996,296 km (0.077 R)
• M18: 3,050,749 km (0.11 R)
• M19: 3,404,100 km (0.12 R)
• M20: 3,634,031 km (0.115 R)
• M21: 3,770,465 km (0.108 R)
• M22: 4,271,767 km (0.094 R)
• M23: 4,478,212 km (0.114 R)
• M24: 4,836,649 km (0.118 R)
• M25: 4,900,826 km (0.112 R)
• M26: 5,425,017 km (0.096 R)
• M27: 5,603,787 km (0.108 R)
• M28: 5,671,255 km (0.084 R)
• M29: 6,244,514 km (0.073 R)
• M30: 6,431,811 km (0.081 R)
• M31: 6,692,560 km (0.109 R)
• M32: 6,788,153 km (0.116 R)
• M33: 7,150,928 km (0.118 R)
• M34: 7,445,785 km (0.106 R)
• M35: 7,669,434 km (0.055 R)
• M36: 8,353,994 km (0.114 R)
• M37: 8,873,547 km (0.101 R)
• M38: 8,978,715 km (0.101 R)
• M39: 9,296,760 km (0.103 R)
• M40: 9,484,056 km (0.039 R)
• M41: 9,862,240 km (0.063 R)
• M42: 10,162,931 km (0.117 R)
• M43: 10,998,286 km (0.036 R)
• M44: 11,196,353 km (0.076 R)
• M45: 11,452,764 km (0.114 R)
• M46: 11,624,802 km (0.089 R)
• M47: 11,826,609 km (0.1 R)
• M48: 12,175,172 km (0.034 R)
• M49: 12,704,450 km (0.087 R)
• M50: 12,882,621 km (0.089 R)
• M51: 13,241,356 km (0.067 R)
• M52: 13,452,140 km (0.115 R)
• M53: 13,603,383 km (0.118 R)
• M54: 13,876,998 km (0.084 R)
• M55: 14,152,407 km (0.095 R)
• M56: 14,306,344 km (0.115 R)
• M57: 15,906,742 km (0.083 R)
• M58: 16,549,863 km (0.117 R)
• M59: 16,646,952 km (0.106 R)
• M60: 17,695,483 km (0.103 R)
• M61: 18,194,392 km (0.114 R)
• M62: 18,529,491 km (0.12 R)
• M63: 18,799,067 km (0.115 R)
• M64: 19,002,071 km (0.091 R)
• M65: 19,137,906 km (0.026 R)
• M66: 19,890,383 km (0.102 R)
• M67: 20,028,163 km (0.066 R)
• M68: 21,037,051 km (0.098 R)
• M69: 21,142,368 km (0.078 R)
• M70: 21,388,905 km (0.099 R)
• M71: 21,600,885 km (0.117 R)
• M72: 22,062,544 km (0.088 R)
• M73: 22,455,688 km (0.097 R)
• M74: 22,599,302 km (0.095 R)
• M75: 22,851,224 km (0.108 R)
• M76: 23,212,802 km (0.054 R)
• M77: 23,503,471 km (0.089 R)
• M78: 23,978,295 km (0.118 R)
• M79: 24,789,115 km (0.073 R)

Kuiper Belt

Range: 30.9 - 54.9 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 296 - 12,294 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit