🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.28

Radius: 0.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.46 AU - 0.66 AU

Year: 158 Days

Day: 14.5 Hours

Environment

Temp: 229 °C

Axial Tilt: 24.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.04

Radius: 1.33

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.63 AU - 0.79 AU

Year: 225 Days

Day: 14.1 Hours

Environment

Temp: 164 °C

Axial Tilt: 31.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 86,542,718 km

• M1: 126,111 km (0.046 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.81 AU - 0.95 AU

Year: 311 Days

Day: 22.3 Hours

Environment

Temp: 19 °C

Axial Tilt: 13 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.69

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.86 AU - 1.36 AU

Year: 441 Days

Day: 46.3 Hours

Environment

Temp: -6 °C

Axial Tilt: 9.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.17 AU - 1.83 AU

Year: 692 Days

Day: 29.1 Hours

Environment

Temp: -50 °C

Axial Tilt: 0.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.62

Radius: 1.67

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.29 AU - 1.93 AU

Year: 770 Days

Day: 17.8 Hours

Environment

Temp: -65 °C

Axial Tilt: 27.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.48

Radius: 0.75

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.78 AU - 1.78 AU

Year: 895 Days

Day: 35.5 Hours

Environment

Temp: -66 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Ice Giant

Semi-Major Axis: 14.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 743.3

Radius: 6.8

Gravity: 16.07 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 11.54 AU - 16.68 AU

Year: 19967 Days

Day: 21.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 86,542,718 km

• M1: 84,523 km (0.088 R)
• M2: 454,478 km (0.06 R)
• M3: 746,942 km (0.101 R)
• M4: 1,021,454 km (0.056 R)
• M5: 1,520,064 km (0.044 R)
• M6: 1,928,915 km (0.115 R)
• M7: 2,762,773 km (0.07 R)
• M8: 3,816,391 km (0.061 R)
• M9: 4,677,028 km (0.059 R)
• M10: 4,892,898 km (0.075 R)
• M11: 7,241,584 km (0.09 R)
• M12: 7,629,192 km (0.093 R)
• M13: 8,821,188 km (0.116 R)
• M14: 10,373,116 km (0.07 R)
• M15: 10,865,892 km (0.089 R)
• M16: 11,568,703 km (0.118 R)
• M17: 12,853,748 km (0.119 R)
• M18: 16,436,019 km (0.086 R)
• M19: 17,706,404 km (0.094 R)
• M20: 20,922,609 km (0.118 R)
• M21: 21,708,895 km (0.069 R)
• M22: 23,760,480 km (0.102 R)
• M23: 27,190,460 km (0.113 R)
• M24: 29,939,022 km (0.035 R)
• M25: 35,980,981 km (0.097 R)
• M26: 41,854,791 km (0.081 R)
• M27: 42,475,174 km (0.072 R)
• M28: 45,505,727 km (0.03 R)
• M29: 46,657,631 km (0.112 R)
• M30: 50,930,445 km (0.102 R)
• M31: 63,857,048 km (0.111 R)
• M32: 65,716,400 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.4

Radius: 6.4

Gravity: 23.13 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 13.35 AU - 15.49 AU

Year: 20629 Days

Day: 24.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 86,542,718 km

• M1: 92,451 km (0.118 R)
• M2: 527,332 km (0.082 R)
• M3: 880,383 km (0.118 R)
• M4: 1,652,458 km (0.077 R)
• M5: 2,018,524 km (0.061 R)
• M6: 3,215,157 km (0.025 R)
• M7: 3,882,813 km (0.116 R)
• M8: 7,444,888 km (0.116 R)
• M9: 7,698,755 km (0.117 R)
• M10: 8,885,665 km (0.086 R)
• M11: 11,684,491 km (0.098 R)
• M12: 11,889,740 km (0.11 R)
• M13: 13,171,793 km (0.084 R)
• M14: 15,757,144 km (0.085 R)
• M15: 16,689,138 km (0.104 R)
• M16: 19,608,690 km (0.119 R)
• M17: 19,898,761 km (0.043 R)
• M18: 20,886,256 km (0.03 R)
• M19: 22,428,162 km (0.082 R)
• M20: 23,824,508 km (0.112 R)
• M21: 26,084,483 km (0.064 R)
• M22: 28,360,166 km (0.114 R)
• M23: 30,764,952 km (0.06 R)
• M24: 31,950,066 km (0.116 R)
• M25: 33,992,376 km (0.081 R)
• M26: 34,833,266 km (0.092 R)
• M27: 43,196,834 km (0.086 R)
• M28: 49,518,092 km (0.072 R)
• M29: 50,598,039 km (0.09 R)
• M30: 51,877,699 km (0.098 R)
• M31: 58,401,214 km (0.097 R)
• M32: 59,808,930 km (0.114 R)
• M33: 62,691,980 km (0.075 R)
• M34: 68,289,334 km (0.057 R)
• M35: 71,665,458 km (0.068 R)
• M36: 73,046,546 km (0.068 R)
• M37: 75,861,679 km (0.079 R)
• M38: 84,484,201 km (0.072 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 14,831 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit