🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.76

Radius: 0.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.48 AU - 0.58 AU

Year: 161 Days

Day: 40.3 Hours

Environment

Temp: 127 °C

Axial Tilt: 39.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.41

Radius: 0.7

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.29 AU - 1.37 AU

Year: 638 Days

Day: 36.5 Hours

Environment

Temp: -75 °C

Axial Tilt: 12.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 826.2

Radius: 13.3

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 7.8 AU - 10.98 AU

Year: 11977 Days

Day: 11.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 53,758,009 km

• M1: 165,455 km (0.049 R)
• M2: 590,912 km (0.073 R)
• M3: 1,029,981 km (0.103 R)
• M4: 1,452,147 km (0.085 R)
• M5: 4,296,152 km (0.086 R)
• M6: 5,290,080 km (0.099 R)
• M7: 5,786,894 km (0.056 R)
• M8: 7,911,783 km (0.091 R)
• M9: 8,373,591 km (0.106 R)
• M10: 12,621,124 km (0.087 R)
• M11: 14,240,969 km (0.093 R)
• M12: 14,996,139 km (0.068 R)
• M13: 17,655,391 km (0.105 R)
• M14: 20,614,886 km (0.119 R)
• M15: 21,226,591 km (0.111 R)
• M16: 23,795,337 km (0.113 R)
• M17: 27,709,565 km (0.09 R)
• M18: 29,763,693 km (0.101 R)
• M19: 46,466,595 km (0.06 R)
• M20: 52,532,489 km (0.071 R)
• M21: 53,674,519 km (0.113 R)

Planet 4 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 202.3

Radius: 7.3

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 9.34 AU - 12.24 AU

Year: 14753 Days

Day: 24.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,758,009 km

• M1: 91,105 km (0.075 R)
• M2: 356,342 km (0.107 R)
• M3: 593,006 km (0.115 R)
• M4: 1,860,549 km (0.106 R)
• M5: 2,539,274 km (0.058 R)
• M6: 8,396,779 km (0.091 R)
• M7: 9,095,850 km (0.062 R)
• M8: 12,672,585 km (0.113 R)
• M9: 13,012,172 km (0.086 R)
• M10: 14,067,286 km (0.119 R)
• M11: 14,926,427 km (0.107 R)
• M12: 17,365,171 km (0.1 R)
• M13: 18,138,592 km (0.08 R)
• M14: 25,708,843 km (0.114 R)
• M15: 26,253,230 km (0.118 R)
• M16: 27,365,041 km (0.109 R)
• M17: 27,837,471 km (0.111 R)
• M18: 28,123,502 km (0.048 R)
• M19: 35,703,925 km (0.087 R)
• M20: 40,628,388 km (0.056 R)

Planet 5 - Ice Giant

Semi-Major Axis: 17.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.2

Radius: 4.3

Gravity: 34.35 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 14.34 AU - 19.8 AU

Year: 29356 Days

Day: 17.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 53,758,009 km

• M1: 53,556 km (0.112 R)
• M2: 199,115 km (0.082 R)
• M3: 351,555 km (0.11 R)
• M4: 584,628 km (0.116 R)
• M5: 878,588 km (0.104 R)
• M6: 2,665,385 km (0.059 R)
• M7: 3,464,238 km (0.027 R)
• M8: 5,647,918 km (0.111 R)
• M9: 6,229,255 km (0.025 R)
• M10: 6,800,420 km (0.049 R)
• M11: 7,048,453 km (0.092 R)
• M12: 7,510,112 km (0.103 R)
• M13: 8,723,052 km (0.119 R)
• M14: 8,898,081 km (0.101 R)
• M15: 10,912,716 km (0.03 R)
• M16: 11,529,807 km (0.041 R)
• M17: 12,315,196 km (0.079 R)
• M18: 13,135,740 km (0.071 R)
• M19: 13,443,014 km (0.088 R)
• M20: 14,556,022 km (0.115 R)
• M21: 15,988,422 km (0.105 R)
• M22: 17,604,677 km (0.12 R)
• M23: 20,330,351 km (0.096 R)
• M24: 22,331,970 km (0.118 R)
• M25: 24,116,374 km (0.041 R)
• M26: 26,356,302 km (0.098 R)
• M27: 35,951,211 km (0.116 R)
• M28: 39,656,600 km (0.094 R)
• M29: 40,783,521 km (0.096 R)
• M30: 42,097,290 km (0.095 R)
• M31: 43,778,770 km (0.111 R)
• M32: 48,177,545 km (0.119 R)
• M33: 48,724,475 km (0.058 R)
• M34: 54,029,515 km (0.066 R)
• M35: 65,992,557 km (0.071 R)
• M36: 66,892,837 km (0.108 R)
• M37: 75,365,762 km (0.069 R)
• M38: 76,596,354 km (0.105 R)
• M39: 84,526,238 km (0.118 R)

Planet 6 - Ice Giant

Semi-Major Axis: 17.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 109.8

Radius: 4.1

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 13.22 AU - 21.16 AU

Year: 29666 Days

Day: 17.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 35.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,758,009 km

• M1: 52,958 km (0.063 R)
• M2: 232,176 km (0.074 R)
• M3: 413,638 km (0.108 R)
• M4: 850,464 km (0.106 R)
• M5: 1,501,065 km (0.057 R)
• M6: 1,682,078 km (0.06 R)
• M7: 2,474,199 km (0.115 R)
• M8: 4,232,273 km (0.108 R)
• M9: 5,010,631 km (0.078 R)
• M10: 6,140,245 km (0.111 R)
• M11: 7,559,180 km (0.062 R)
• M12: 8,507,930 km (0.051 R)
• M13: 9,686,313 km (0.116 R)
• M14: 10,207,960 km (0.071 R)
• M15: 14,196,090 km (0.099 R)
• M16: 14,732,249 km (0.072 R)
• M17: 15,143,344 km (0.067 R)
• M18: 15,561,769 km (0.113 R)
• M19: 16,131,886 km (0.119 R)
• M20: 17,694,287 km (0.09 R)
• M21: 18,710,355 km (0.065 R)
• M22: 18,870,126 km (0.107 R)
• M23: 20,432,975 km (0.111 R)
• M24: 20,602,320 km (0.081 R)
• M25: 25,931,893 km (0.092 R)
• M26: 27,138,550 km (0.105 R)
• M27: 27,549,046 km (0.069 R)
• M28: 30,982,467 km (0.091 R)
• M29: 36,900,858 km (0.103 R)
• M30: 40,256,787 km (0.055 R)
• M31: 50,909,651 km (0.116 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 158 - 10,805 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit