🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.7

Radius: 11.3

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.96 AU - 1.16 AU

Year: 728 Days

Day: 7 Hours

Environment

Temp: -182 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,812,382 km

• M1: 140,622 km (0.082 R)
• M2: 642,972 km (0.094 R)
• M3: 1,065,586 km (0.114 R)
• M4: 1,498,821 km (0.061 R)
• M5: 2,345,695 km (0.113 R)
• M6: 2,893,073 km (0.054 R)
• M7: 3,244,778 km (0.045 R)
• M8: 3,913,331 km (0.089 R)
• M9: 4,288,073 km (0.118 R)
• M10: 4,702,011 km (0.099 R)
• M11: 5,491,139 km (0.065 R)
• M12: 5,980,474 km (0.111 R)
• M13: 6,347,587 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.8

Radius: 11.8

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.62 AU - 1.9 AU

Year: 1557 Days

Day: 10 Hours

Environment

Temp: -187 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 56,812,382 km

• M1: 146,756 km (0.102 R)
• M2: 736,770 km (0.059 R)
• M3: 1,887,776 km (0.088 R)
• M4: 2,546,754 km (0.105 R)
• M5: 3,152,775 km (0.116 R)
• M6: 4,479,708 km (0.115 R)
• M7: 6,345,942 km (0.034 R)
• M8: 6,732,353 km (0.107 R)
• M9: 7,733,911 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849

Radius: 13.3

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.58 AU - 2.7 AU

Year: 2860 Days

Day: 7.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,812,382 km

• M1: 165,605 km (0.066 R)
• M2: 636,988 km (0.038 R)
• M3: 1,402,181 km (0.114 R)
• M4: 3,039,829 km (0.1 R)
• M5: 3,757,001 km (0.113 R)
• M6: 4,339,535 km (0.104 R)
• M7: 7,549,606 km (0.12 R)
• M8: 10,493,243 km (0.096 R)
• M9: 11,271,601 km (0.094 R)
• M10: 11,869,544 km (0.048 R)
• M11: 13,410,103 km (0.112 R)
• M12: 15,701,493 km (0.112 R)
• M13: 17,782,549 km (0.08 R)
• M14: 18,535,027 km (0.071 R)
• M15: 20,290,109 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 693.4

Radius: 9.8

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.38 AU - 3.96 AU

Year: 3764 Days

Day: 6.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,812,382 km

• M1: 121,922 km (0.058 R)
• M2: 480,060 km (0.108 R)
• M3: 789,278 km (0.101 R)
• M4: 1,580,202 km (0.111 R)
• M5: 1,945,371 km (0.089 R)
• M6: 3,755,355 km (0.072 R)
• M7: 4,163,458 km (0.109 R)
• M8: 4,624,968 km (0.111 R)
• M9: 6,636,162 km (0.086 R)
• M10: 7,332,390 km (0.049 R)
• M11: 7,800,332 km (0.1 R)
• M12: 9,518,464 km (0.093 R)
• M13: 10,487,110 km (0.097 R)
• M14: 10,909,574 km (0.109 R)
• M15: 12,199,258 km (0.085 R)
• M16: 13,390,206 km (0.062 R)
• M17: 23,476,843 km (0.112 R)
• M18: 23,909,330 km (0.055 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.4

Radius: 3.1

Gravity: 52.49 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 5.26 AU - 7.9 AU

Year: 11256 Days

Day: 18.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 56,812,382 km

• M1: 56,698 km (0.09 R)
• M2: 166,951 km (0.044 R)
• M3: 285,134 km (0.099 R)
• M4: 550,520 km (0.083 R)
• M5: 761,004 km (0.093 R)
• M6: 1,088,025 km (0.083 R)
• M7: 1,379,442 km (0.025 R)
• M8: 1,644,978 km (0.062 R)
• M9: 1,910,514 km (0.117 R)
• M10: 2,027,799 km (0.068 R)
• M11: 2,486,616 km (0.08 R)
• M12: 3,124,352 km (0.109 R)
• M13: 3,656,322 km (0.109 R)
• M14: 5,477,077 km (0.069 R)
• M15: 5,923,328 km (0.102 R)
• M16: 6,849,039 km (0.108 R)
• M17: 7,530,906 km (0.11 R)
• M18: 7,866,903 km (0.119 R)
• M19: 8,568,816 km (0.12 R)
• M20: 8,935,032 km (0.109 R)
• M21: 9,552,273 km (0.083 R)
• M22: 11,191,566 km (0.108 R)
• M23: 11,408,782 km (0.069 R)
• M24: 12,020,787 km (0.115 R)
• M25: 14,176,493 km (0.117 R)
• M26: 15,952,668 km (0.102 R)
• M27: 19,544,962 km (0.11 R)
• M28: 19,939,302 km (0.056 R)
• M29: 20,098,474 km (0.115 R)
• M30: 21,569,769 km (0.114 R)
• M31: 21,906,215 km (0.08 R)
• M32: 24,269,113 km (0.079 R)
• M33: 24,908,345 km (0.078 R)
• M34: 29,287,822 km (0.111 R)
• M35: 33,363,616 km (0.088 R)
• M36: 37,437,615 km (0.105 R)
• M37: 41,183,097 km (0.105 R)
• M38: 41,830,706 km (0.095 R)
• M39: 44,353,525 km (0.047 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 981.4

Radius: 7

Gravity: 20.03 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 6.46 AU - 8.62 AU

Year: 13807 Days

Day: 22 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 56,812,382 km

• M1: 92,003 km (0.087 R)
• M2: 336,296 km (0.097 R)
• M3: 733,628 km (0.108 R)
• M4: 955,482 km (0.073 R)
• M5: 1,346,381 km (0.12 R)
• M6: 1,685,519 km (0.084 R)
• M7: 2,004,312 km (0.061 R)
• M8: 2,469,861 km (0.117 R)
• M9: 2,980,588 km (0.054 R)
• M10: 3,504,031 km (0.12 R)
• M11: 4,598,339 km (0.093 R)
• M12: 5,748,149 km (0.066 R)
• M13: 10,740,978 km (0.112 R)
• M14: 16,111,691 km (0.115 R)
• M15: 17,139,278 km (0.104 R)
• M16: 18,890,471 km (0.106 R)
• M17: 23,834,232 km (0.099 R)
• M18: 30,043,890 km (0.118 R)
• M19: 31,475,841 km (0.079 R)
• M20: 33,203,247 km (0.114 R)
• M21: 37,387,201 km (0.088 R)
• M22: 41,470,923 km (0.1 R)
• M23: 43,544,649 km (0.069 R)
• M24: 54,431,634 km (0.092 R)
• M25: 55,841,594 km (0.07 R)
• M26: 57,275,789 km (0.08 R)

Asteroid Belt

Center: 8.04 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 411.8

Radius: 7.4

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 7.4 AU - 9.68 AU

Year: 16642 Days

Day: 22.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,812,382 km

• M1: 125,662 km (0.107 R)
• M2: 385,663 km (0.115 R)
• M3: 957,127 km (0.096 R)
• M4: 3,508,668 km (0.092 R)
• M5: 6,888,384 km (0.078 R)
• M6: 16,697,217 km (0.062 R)
• M7: 17,304,584 km (0.093 R)
• M8: 18,969,309 km (0.105 R)
• M9: 19,215,547 km (0.036 R)
• M10: 22,521,959 km (0.119 R)
• M11: 30,347,274 km (0.065 R)
• M12: 31,251,594 km (0.075 R)
• M13: 34,557,856 km (0.045 R)
• M14: 42,273,665 km (0.083 R)
• M15: 46,604,225 km (0.077 R)
• M16: 48,876,317 km (0.089 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 10,381 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit