🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.19

Radius: 0.51

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.48 AU - 0.6 AU

Year: 144 Days

Day: 47.7 Hours

Environment

Temp: 247 °C

Axial Tilt: 20 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.52 AU - 0.8 AU

Year: 195 Days

Day: 45.8 Hours

Environment

Temp: 220 °C

Axial Tilt: 19.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 56,896,014 km

• M1: 31,266 km (0.107 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.99

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.66 AU - 0.7 AU

Year: 204 Days

Day: 37.2 Hours

Environment

Temp: 174 °C

Axial Tilt: 6.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.92

Radius: 1.3

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.27 AU - 1.85 AU

Year: 708 Days

Day: 44.3 Hours

Environment

Temp: -37 °C

Axial Tilt: 38.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,896,014 km

• M1: 252,372 km (0.093 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.17 AU - 4.77 AU

Year: 3435 Days

Day: 31.5 Hours

Environment

Temp: -130 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,896,014 km

• M1: 23,188 km (0.106 R)

Asteroid Belt

Center: 4.8 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.6

Radius: 11.8

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 4.13 AU - 6.11 AU

Year: 4211 Days

Day: 11.4 Hours

Environment

Temp: -142 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 56,896,014 km

• M1: 151,393 km (0.087 R)
• M2: 754,272 km (0.111 R)
• M3: 1,371,663 km (0.076 R)
• M4: 1,755,082 km (0.037 R)
• M5: 3,131,682 km (0.074 R)
• M6: 4,697,972 km (0.072 R)
• M7: 6,017,874 km (0.114 R)
• M8: 6,615,816 km (0.064 R)
• M9: 7,284,668 km (0.066 R)
• M10: 10,141,838 km (0.108 R)
• M11: 12,238,452 km (0.034 R)
• M12: 14,509,049 km (0.097 R)
• M13: 15,066,600 km (0.093 R)
• M14: 16,550,461 km (0.106 R)
• M15: 17,047,575 km (0.117 R)
• M16: 20,179,406 km (0.097 R)
• M17: 22,112,660 km (0.102 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.6

Radius: 13.1

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 7.52 AU - 10.12 AU

Year: 9520 Days

Day: 13.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 56,896,014 km

• M1: 175,478 km (0.104 R)
• M2: 1,066,782 km (0.087 R)
• M3: 1,675,646 km (0.094 R)
• M4: 2,583,406 km (0.114 R)
• M5: 5,770,139 km (0.054 R)
• M6: 6,943,436 km (0.117 R)
• M7: 8,024,430 km (0.05 R)
• M8: 9,898,742 km (0.086 R)
• M9: 20,049,256 km (0.047 R)
• M10: 30,812,374 km (0.089 R)
• M11: 34,461,515 km (0.062 R)
• M12: 34,896,247 km (0.094 R)
• M13: 36,110,233 km (0.09 R)
• M14: 36,784,321 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 412.6

Radius: 6.2

Gravity: 10.73 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 11.86 AU - 13.76 AU

Year: 16663 Days

Day: 17.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 56,896,014 km

• M1: 80,035 km (0.115 R)
• M2: 276,606 km (0.116 R)
• M3: 823,985 km (0.07 R)
• M4: 1,122,582 km (0.089 R)
• M5: 1,406,370 km (0.101 R)
• M6: 1,611,169 km (0.063 R)
• M7: 2,156,304 km (0.112 R)
• M8: 2,349,883 km (0.055 R)
• M9: 2,684,085 km (0.059 R)
• M10: 3,632,236 km (0.113 R)
• M11: 5,050,424 km (0.07 R)
• M12: 5,500,115 km (0.086 R)
• M13: 7,094,529 km (0.108 R)
• M14: 9,582,043 km (0.108 R)
• M15: 14,420,188 km (0.101 R)
• M16: 16,117,076 km (0.1 R)
• M17: 16,412,382 km (0.051 R)
• M18: 19,566,055 km (0.098 R)
• M19: 20,499,247 km (0.032 R)
• M20: 20,758,799 km (0.058 R)
• M21: 21,461,909 km (0.113 R)
• M22: 26,627,972 km (0.051 R)
• M23: 33,037,343 km (0.106 R)
• M24: 36,343,307 km (0.083 R)
• M25: 37,235,060 km (0.116 R)
• M26: 38,534,168 km (0.098 R)
• M27: 41,636,379 km (0.111 R)
• M28: 46,075,247 km (0.054 R)
• M29: 49,721,096 km (0.054 R)
• M30: 52,094,766 km (0.084 R)

Kuiper Belt

Range: 30.2 - 59.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 12,415 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit