🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.68

Radius: 0.86

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.53 AU - 0.79 AU

Year: 191 Days

Day: 19 Hours

Environment

Temp: 213 °C

Axial Tilt: 39.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.34

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.07 AU - 1.21 AU

Year: 434 Days

Day: 36.4 Hours

Environment

Temp: 11 °C

Axial Tilt: 45.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 99,748,219 km

• M1: 53,556 km (0.116 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 1.64 AU - 1.98 AU

Year: 868 Days

Day: 18.4 Hours

Environment

Temp: -38 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.7 AU - 2.83 AU

Year: 1211 Days

Day: 14.9 Hours

Environment

Temp: -69 °C

Axial Tilt: 12.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.22

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 1.96 AU - 3.06 AU

Year: 1417 Days

Day: 26.2 Hours

Environment

Temp: -90 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 2 AU - 3.08 AU

Year: 1443 Days

Day: 34.6 Hours

Environment

Temp: -83 °C

Axial Tilt: 33.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.1

Radius: 8.2

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 4.92 AU - 6.5 AU

Year: 4864 Days

Day: 7 Hours

Environment

Temp: -135 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 99,748,219 km

• M1: 102,026 km (0.099 R)
• M2: 518,506 km (0.087 R)
• M3: 872,604 km (0.06 R)
• M4: 1,291,179 km (0.045 R)
• M5: 2,058,467 km (0.048 R)
• M6: 3,234,755 km (0.114 R)
• M7: 3,769,567 km (0.074 R)
• M8: 4,173,332 km (0.066 R)
• M9: 4,630,652 km (0.086 R)
• M10: 5,041,448 km (0.102 R)
• M11: 5,935,744 km (0.067 R)
• M12: 6,266,505 km (0.118 R)
• M13: 6,546,253 km (0.098 R)
• M14: 6,997,889 km (0.079 R)
• M15: 7,820,528 km (0.096 R)
• M16: 9,412,848 km (0.051 R)
• M17: 11,623,455 km (0.064 R)
• M18: 12,189,982 km (0.109 R)
• M19: 12,725,393 km (0.114 R)
• M20: 13,531,875 km (0.107 R)
• M21: 17,834,460 km (0.094 R)
• M22: 18,715,591 km (0.102 R)
• M23: 20,632,838 km (0.076 R)
• M24: 21,253,669 km (0.11 R)
• M25: 24,316,087 km (0.087 R)
• M26: 24,930,934 km (0.041 R)
• M27: 26,272,079 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.1

Radius: 9.8

Gravity: 2.24 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.58 AU - 7.36 AU

Year: 5199 Days

Day: 10.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 99,748,219 km

• M1: 122,221 km (0.1 R)
• M2: 433,684 km (0.112 R)
• M3: 795,412 km (0.08 R)
• M4: 1,191,397 km (0.082 R)
• M5: 1,640,640 km (0.101 R)
• M6: 2,755,593 km (0.119 R)
• M7: 3,549,808 km (0.077 R)
• M8: 4,668,501 km (0.069 R)
• M9: 5,663,925 km (0.03 R)
• M10: 7,777,593 km (0.098 R)
• M11: 11,501,832 km (0.092 R)
• M12: 12,097,681 km (0.111 R)
• M13: 16,219,252 km (0.102 R)
• M14: 20,815,945 km (0.044 R)

Planet 9 - Gas Giant

Semi-Major Axis: 6.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.2

Radius: 12.7

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.76 AU - 6.74 AU

Year: 5569 Days

Day: 5.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 99,748,219 km

• M1: 158,574 km (0.062 R)
• M2: 595,699 km (0.109 R)
• M3: 1,195,586 km (0.079 R)
• M4: 1,923,081 km (0.074 R)
• M5: 5,368,918 km (0.103 R)
• M6: 6,022,062 km (0.089 R)
• M7: 6,529,797 km (0.061 R)
• M8: 9,302,893 km (0.103 R)
• M9: 18,197,983 km (0.11 R)
• M10: 20,018,738 km (0.107 R)
• M11: 20,722,895 km (0.104 R)
• M12: 22,555,918 km (0.088 R)
• M13: 23,628,385 km (0.055 R)
• M14: 25,056,895 km (0.04 R)
• M15: 25,545,632 km (0.105 R)
• M16: 26,207,153 km (0.102 R)
• M17: 27,220,829 km (0.108 R)

Planet 10 - Ice Giant

Semi-Major Axis: 17.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 920.7

Radius: 3.8

Gravity: 63.76 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 13.72 AU - 21.1 AU

Year: 25894 Days

Day: 24.5 Hours

Environment

Temp: -184 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 99,748,219 km

• M1: 62,981 km (0.104 R)
• M2: 187,297 km (0.093 R)
• M3: 471,084 km (0.106 R)
• M4: 997,219 km (0.093 R)
• M5: 1,260,362 km (0.11 R)
• M6: 1,642,734 km (0.104 R)
• M7: 1,902,586 km (0.074 R)
• M8: 2,166,327 km (0.115 R)
• M9: 2,453,854 km (0.079 R)
• M10: 2,766,214 km (0.035 R)
• M11: 3,469,773 km (0.115 R)
• M12: 4,545,531 km (0.044 R)
• M13: 6,098,956 km (0.082 R)
• M14: 6,969,166 km (0.113 R)
• M15: 8,310,611 km (0.045 R)
• M16: 11,004,569 km (0.1 R)
• M17: 12,887,557 km (0.094 R)
• M18: 13,194,981 km (0.09 R)
• M19: 13,586,329 km (0.091 R)
• M20: 16,816,596 km (0.055 R)
• M21: 20,732,619 km (0.119 R)
• M22: 21,582,634 km (0.101 R)
• M23: 24,505,328 km (0.087 R)
• M24: 25,575,551 km (0.085 R)
• M25: 29,367,259 km (0.043 R)
• M26: 31,813,184 km (0.065 R)
• M27: 31,952,908 km (0.043 R)
• M28: 33,806,875 km (0.084 R)
• M29: 43,640,990 km (0.088 R)
• M30: 44,333,927 km (0.053 R)
• M31: 50,522,043 km (0.058 R)
• M32: 55,422,421 km (0.072 R)
• M33: 58,719,259 km (0.102 R)
• M34: 63,241,752 km (0.054 R)
• M35: 64,575,118 km (0.045 R)
• M36: 77,936,601 km (0.068 R)
• M37: 82,593,284 km (0.045 R)
• M38: 84,185,753 km (0.091 R)
• M39: 87,980,901 km (0.101 R)

Kuiper Belt

Range: 30.8 - 47.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 20,307 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit