🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.45 AU - 0.61 AU

Year: 249 Days

Day: 41.3 Hours

Environment

Temp: -123 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 0.89 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.5

Radius: 11.1

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.24 AU - 1.27 AU

Year: 902 Days

Day: 9.8 Hours

Environment

Temp: -170 °C

Axial Tilt: 164.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 66,392,924 km

• M1: 138,228 km (0.092 R)
• M2: 656,735 km (0.072 R)
• M3: 1,294,620 km (0.067 R)
• M4: 1,769,892 km (0.047 R)
• M5: 2,747,963 km (0.092 R)
• M6: 3,281,579 km (0.038 R)
• M7: 4,068,314 km (0.103 R)
• M8: 4,586,521 km (0.068 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.9

Radius: 11.7

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.23 AU - 1.77 AU

Year: 1186 Days

Day: 5.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,392,924 km

• M1: 153,637 km (0.032 R)
• M2: 568,622 km (0.081 R)
• M3: 1,044,642 km (0.05 R)
• M4: 1,503,608 km (0.077 R)
• M5: 2,129,825 km (0.083 R)
• M6: 3,329,301 km (0.114 R)
• M7: 3,722,893 km (0.083 R)
• M8: 4,914,888 km (0.083 R)
• M9: 5,470,196 km (0.116 R)
• M10: 5,841,049 km (0.107 R)
• M11: 6,205,469 km (0.072 R)
• M12: 6,755,989 km (0.049 R)
• M13: 7,261,032 km (0.088 R)
• M14: 7,737,052 km (0.07 R)
• M15: 8,751,775 km (0.06 R)
• M16: 9,230,338 km (0.066 R)
• M17: 9,821,250 km (0.108 R)
• M18: 10,704,326 km (0.09 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 146.2

Radius: 12.9

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.58 AU - 1.86 AU

Year: 1456 Days

Day: 10.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,392,924 km

• M1: 236,514 km (0.094 R)
• M2: 778,208 km (0.056 R)
• M3: 1,278,314 km (0.054 R)
• M4: 1,756,129 km (0.102 R)
• M5: 2,712,658 km (0.119 R)
• M6: 3,544,123 km (0.097 R)
• M7: 4,651,147 km (0.047 R)
• M8: 6,409,670 km (0.044 R)
• M9: 7,142,102 km (0.067 R)
• M10: 7,721,793 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.8

Radius: 14.7

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.58 AU - 3.02 AU

Year: 3025 Days

Day: 13.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 66,392,924 km

• M1: 184,753 km (0.115 R)
• M2: 1,307,485 km (0.104 R)
• M3: 2,489,608 km (0.081 R)
• M4: 3,253,305 km (0.104 R)
• M5: 6,119,301 km (0.089 R)
• M6: 6,639,303 km (0.057 R)
• M7: 7,135,070 km (0.114 R)
• M8: 7,796,742 km (0.065 R)
• M9: 8,499,104 km (0.103 R)
• M10: 9,863,287 km (0.089 R)
• M11: 10,372,069 km (0.114 R)
• M12: 11,222,683 km (0.051 R)
• M13: 14,311,729 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.5

Radius: 9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 2.52 AU - 3.44 AU

Year: 3322 Days

Day: 11.8 Hours

Environment

Temp: -195 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 66,392,924 km

• M1: 111,899 km (0.064 R)
• M2: 434,582 km (0.108 R)
• M3: 857,794 km (0.078 R)
• M4: 1,209,050 km (0.113 R)
• M5: 1,879,996 km (0.114 R)
• M6: 2,325,050 km (0.104 R)
• M7: 2,622,301 km (0.091 R)
• M8: 3,006,319 km (0.076 R)
• M9: 3,565,067 km (0.047 R)
• M10: 4,018,947 km (0.103 R)
• M11: 4,490,479 km (0.046 R)
• M12: 5,176,086 km (0.09 R)
• M13: 5,497,273 km (0.082 R)
• M14: 5,954,594 km (0.042 R)
• M15: 6,410,867 km (0.094 R)
• M16: 7,027,809 km (0.119 R)
• M17: 8,163,855 km (0.116 R)
• M18: 9,724,610 km (0.066 R)
• M19: 10,648,526 km (0.1 R)
• M20: 11,245,422 km (0.101 R)
• M21: 12,384,161 km (0.062 R)
• M22: 13,255,568 km (0.104 R)
• M23: 13,641,231 km (0.114 R)
• M24: 14,935,253 km (0.119 R)
• M25: 15,353,080 km (0.089 R)
• M26: 15,874,129 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 336.7

Radius: 8.5

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.83 AU - 4.41 AU

Year: 4447 Days

Day: 6.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,392,924 km

• M1: 105,766 km (0.068 R)
• M2: 408,851 km (0.038 R)
• M3: 990,787 km (0.084 R)
• M4: 1,367,175 km (0.059 R)
• M5: 2,325,349 km (0.079 R)
• M6: 2,863,902 km (0.051 R)
• M7: 3,957,612 km (0.113 R)
• M8: 5,011,229 km (0.096 R)
• M9: 7,311,147 km (0.078 R)
• M10: 12,647,154 km (0.105 R)
• M11: 13,105,970 km (0.067 R)
• M12: 13,433,739 km (0.113 R)
• M13: 14,549,291 km (0.051 R)
• M14: 17,919,581 km (0.107 R)
• M15: 18,970,656 km (0.089 R)
• M16: 19,269,851 km (0.098 R)
• M17: 19,754,997 km (0.036 R)
• M18: 20,686,543 km (0.086 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 423.8

Radius: 4.5

Gravity: 20.93 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.03 AU - 12.17 AU

Year: 20725 Days

Day: 22.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,392,924 km

• M1: 56,099 km (0.091 R)
• M2: 961,615 km (0.114 R)
• M3: 1,290,431 km (0.09 R)
• M4: 2,827,699 km (0.058 R)
• M5: 3,229,070 km (0.086 R)
• M6: 8,199,758 km (0.097 R)
• M7: 8,548,621 km (0.077 R)
• M8: 8,752,523 km (0.077 R)
• M9: 10,328,536 km (0.077 R)
• M10: 10,794,534 km (0.081 R)
• M11: 17,527,485 km (0.084 R)
• M12: 18,106,129 km (0.047 R)
• M13: 24,405,696 km (0.088 R)
• M14: 28,832,746 km (0.111 R)
• M15: 31,779,076 km (0.116 R)
• M16: 38,123,821 km (0.096 R)
• M17: 40,795,190 km (0.084 R)
• M18: 49,716,758 km (0.083 R)
• M19: 53,932,576 km (0.101 R)
• M20: 54,978,713 km (0.085 R)
• M21: 61,920,204 km (0.117 R)
• M22: 66,392,881 km (0.073 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 200 - 16,922 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit