🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.46 AU - 0.62 AU

Year: 256 Days

Day: 21 Hours

Environment

Temp: -130 °C

Axial Tilt: 33 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.85

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.49 AU - 0.79 AU

Year: 331 Days

Day: 26.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 791.6

Radius: 10.6

Gravity: 7.05 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.54 AU - 0.84 AU

Year: 370 Days

Day: 13.8 Hours

Environment

Temp: -145 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,546,785 km

• M1: 131,945 km (0.041 R)
• M2: 480,957 km (0.059 R)
• M3: 817,702 km (0.084 R)
• M4: 1,240,615 km (0.114 R)
• M5: 1,772,286 km (0.053 R)
• M6: 2,117,109 km (0.079 R)
• M7: 2,469,861 km (0.084 R)
• M8: 2,861,957 km (0.11 R)
• M9: 3,273,052 km (0.119 R)
• M10: 3,723,341 km (0.114 R)
• M11: 4,147,751 km (0.05 R)
• M12: 5,488,447 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.9

Radius: 12

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.72 AU - 1.12 AU

Year: 570 Days

Day: 14 Hours

Environment

Temp: -155 °C

Axial Tilt: 123.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 47,546,785 km

• M1: 149,299 km (0.112 R)
• M2: 649,404 km (0.095 R)
• M3: 1,256,473 km (0.09 R)
• M4: 1,692,700 km (0.109 R)
• M5: 2,390,574 km (0.084 R)
• M6: 3,121,659 km (0.061 R)
• M7: 4,091,053 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.6

Radius: 14.3

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.78 AU - 2.24 AU

Year: 1840 Days

Day: 12.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 47,546,785 km

• M1: 178,919 km (0.046 R)
• M2: 629,508 km (0.093 R)
• M3: 1,275,771 km (0.069 R)
• M4: 1,812,528 km (0.097 R)
• M5: 2,784,914 km (0.066 R)
• M6: 4,443,805 km (0.108 R)
• M7: 5,401,830 km (0.119 R)
• M8: 6,044,951 km (0.058 R)
• M9: 7,015,542 km (0.059 R)
• M10: 8,400,968 km (0.11 R)
• M11: 10,590,632 km (0.108 R)
• M12: 12,000,741 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267

Radius: 9.4

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.15 AU - 4.87 AU

Year: 5185 Days

Day: 10.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 15.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 47,546,785 km

• M1: 123,717 km (0.113 R)
• M2: 416,181 km (0.111 R)
• M3: 754,721 km (0.032 R)
• M4: 1,566,439 km (0.046 R)
• M5: 2,005,958 km (0.057 R)
• M6: 2,377,260 km (0.083 R)
• M7: 3,116,572 km (0.116 R)
• M8: 3,676,517 km (0.078 R)
• M9: 4,107,359 km (0.046 R)
• M10: 4,457,867 km (0.118 R)
• M11: 4,804,784 km (0.09 R)
• M12: 5,711,348 km (0.084 R)
• M13: 6,037,770 km (0.054 R)
• M14: 6,376,460 km (0.089 R)
• M15: 7,185,485 km (0.068 R)
• M16: 7,502,034 km (0.049 R)
• M17: 8,061,380 km (0.071 R)
• M18: 8,613,097 km (0.076 R)
• M19: 9,189,648 km (0.073 R)
• M20: 9,677,037 km (0.104 R)
• M21: 10,867,388 km (0.062 R)
• M22: 11,757,046 km (0.089 R)
• M23: 12,376,531 km (0.116 R)
• M24: 13,393,797 km (0.093 R)
• M25: 14,415,849 km (0.067 R)
• M26: 14,869,430 km (0.062 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914

Radius: 10.6

Gravity: 8.13 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 4.43 AU - 5.31 AU

Year: 6939 Days

Day: 10.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 47,546,785 km

• M1: 131,796 km (0.077 R)
• M2: 558,898 km (0.048 R)
• M3: 916,586 km (0.102 R)
• M4: 1,348,176 km (0.118 R)
• M5: 1,795,623 km (0.064 R)
• M6: 2,503,072 km (0.113 R)
• M7: 3,015,145 km (0.089 R)
• M8: 3,432,822 km (0.074 R)
• M9: 4,144,908 km (0.084 R)
• M10: 4,578,443 km (0.047 R)
• M11: 5,962,522 km (0.082 R)
• M12: 8,051,956 km (0.099 R)
• M13: 8,904,364 km (0.12 R)
• M14: 9,863,137 km (0.079 R)
• M15: 10,245,958 km (0.047 R)
• M16: 11,298,379 km (0.071 R)
• M17: 13,038,502 km (0.061 R)
• M18: 13,912,901 km (0.112 R)
• M19: 14,273,432 km (0.116 R)
• M20: 15,139,005 km (0.091 R)
• M21: 16,435,720 km (0.119 R)
• M22: 18,881,046 km (0.112 R)
• M23: 22,533,179 km (0.099 R)
• M24: 24,568,458 km (0.087 R)
• M25: 25,720,811 km (0.039 R)
• M26: 28,807,015 km (0.092 R)
• M27: 35,036,121 km (0.115 R)
• M28: 39,293,826 km (0.107 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.5

Radius: 9.6

Gravity: 9.01 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.36 AU - 7.2 AU

Year: 8972 Days

Day: 8.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,546,785 km

• M1: 119,379 km (0.051 R)
• M2: 444,754 km (0.082 R)
• M3: 766,839 km (0.089 R)
• M4: 1,264,102 km (0.106 R)
• M5: 1,747,453 km (0.097 R)
• M6: 2,170,366 km (0.069 R)
• M7: 3,177,608 km (0.099 R)
• M8: 3,633,134 km (0.064 R)
• M9: 3,969,729 km (0.083 R)
• M10: 4,270,570 km (0.097 R)
• M11: 6,635,414 km (0.097 R)
• M12: 8,139,919 km (0.104 R)
• M13: 8,948,945 km (0.08 R)
• M14: 10,518,077 km (0.095 R)
• M15: 11,422,695 km (0.101 R)
• M16: 15,699,698 km (0.079 R)
• M17: 17,166,056 km (0.114 R)
• M18: 18,118,247 km (0.114 R)
• M19: 19,416,158 km (0.102 R)
• M20: 19,888,738 km (0.114 R)
• M21: 22,025,594 km (0.072 R)
• M22: 25,511,374 km (0.106 R)
• M23: 27,042,209 km (0.088 R)
• M24: 31,028,543 km (0.116 R)
• M25: 37,050,605 km (0.067 R)
• M26: 37,900,022 km (0.107 R)
• M27: 39,511,790 km (0.104 R)
• M28: 42,739,214 km (0.092 R)
• M29: 43,405,074 km (0.062 R)
• M30: 44,349,037 km (0.082 R)
• M31: 47,546,841 km (0.07 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 17,293 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit