🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.75

Radius: 0.89

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.52 AU - 0.7 AU

Year: 313 Days

Day: 19.5 Hours

Environment

Temp: -120 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 68,378,046 km

• M1: 207,941 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.9

Radius: 9.8

Gravity: 9.57 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.81 AU - 1.07 AU

Year: 598 Days

Day: 5.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,378,046 km

• M1: 121,922 km (0.067 R)
• M2: 440,267 km (0.026 R)
• M3: 809,324 km (0.112 R)
• M4: 1,209,200 km (0.091 R)
• M5: 1,651,112 km (0.105 R)
• M6: 1,982,621 km (0.101 R)
• M7: 2,570,241 km (0.073 R)
• M8: 2,983,281 km (0.056 R)
• M9: 3,440,302 km (0.103 R)
• M10: 4,368,258 km (0.12 R)
• M11: 4,840,389 km (0.12 R)
• M12: 5,565,490 km (0.094 R)
• M13: 5,905,974 km (0.106 R)
• M14: 6,463,526 km (0.105 R)
• M15: 7,342,712 km (0.055 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 10.7

Radius: 12.1

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.46 AU - 2.2 AU

Year: 1624 Days

Day: 9.8 Hours

Environment

Temp: -193 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 68,378,046 km

• M1: 151,094 km (0.106 R)
• M2: 552,315 km (0.108 R)
• M3: 1,752,988 km (0.087 R)
• M4: 2,146,430 km (0.092 R)
• M5: 2,724,776 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574.5

Radius: 11.5

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.26 AU - 2.52 AU

Year: 2424 Days

Day: 8.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 105 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,378,046 km

• M1: 145,409 km (0.116 R)
• M2: 642,373 km (0.081 R)
• M3: 1,062,145 km (0.074 R)
• M4: 1,528,741 km (0.105 R)
• M5: 2,046,648 km (0.045 R)
• M6: 2,665,086 km (0.114 R)
• M7: 3,439,255 km (0.089 R)
• M8: 3,832,997 km (0.12 R)
• M9: 4,276,854 km (0.097 R)
• M10: 5,943,823 km (0.099 R)
• M11: 7,350,043 km (0.072 R)
• M12: 8,131,243 km (0.092 R)
• M13: 8,769,128 km (0.092 R)
• M14: 10,621,898 km (0.061 R)
• M15: 11,620,463 km (0.048 R)
• M16: 12,020,787 km (0.112 R)
• M17: 13,627,020 km (0.038 R)
• M18: 16,297,790 km (0.119 R)
• M19: 17,003,743 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.7

Radius: 12.9

Gravity: 1.61 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.69 AU - 6.71 AU

Year: 8927 Days

Day: 5.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,378,046 km

• M1: 160,519 km (0.119 R)
• M2: 762,052 km (0.067 R)
• M3: 1,200,074 km (0.057 R)
• M4: 2,555,730 km (0.065 R)
• M5: 3,803,376 km (0.111 R)
• M6: 4,299,592 km (0.112 R)
• M7: 5,777,619 km (0.118 R)
• M8: 6,566,898 km (0.048 R)
• M9: 7,865,706 km (0.106 R)
• M10: 8,399,621 km (0.092 R)
• M11: 9,245,747 km (0.083 R)
• M12: 10,147,972 km (0.119 R)
• M13: 12,583,275 km (0.094 R)
• M14: 14,978,188 km (0.055 R)
• M15: 15,385,393 km (0.083 R)
• M16: 16,528,321 km (0.064 R)
• M17: 19,460,289 km (0.068 R)
• M18: 22,343,639 km (0.097 R)
• M19: 22,875,908 km (0.081 R)
• M20: 23,729,663 km (0.061 R)
• M21: 26,842,944 km (0.113 R)
• M22: 28,943,897 km (0.074 R)
• M23: 32,008,708 km (0.119 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 875

Radius: 5.6

Gravity: 27.9 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 7.8 AU - 8.84 AU

Year: 15743 Days

Day: 24.3 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 68,378,046 km

• M1: 72,854 km (0.09 R)
• M2: 363,074 km (0.1 R)
• M3: 591,061 km (0.071 R)
• M4: 778,208 km (0.109 R)
• M5: 982,110 km (0.069 R)
• M6: 1,646,474 km (0.036 R)
• M7: 2,417,202 km (0.079 R)
• M8: 3,007,516 km (0.112 R)
• M9: 3,215,457 km (0.108 R)
• M10: 3,837,185 km (0.097 R)
• M11: 5,241,909 km (0.109 R)
• M12: 6,434,354 km (0.108 R)
• M13: 7,185,036 km (0.101 R)
• M14: 8,190,932 km (0.11 R)
• M15: 8,494,765 km (0.11 R)
• M16: 9,617,946 km (0.104 R)
• M17: 12,550,663 km (0.069 R)
• M18: 12,819,042 km (0.111 R)
• M19: 13,091,160 km (0.113 R)
• M20: 15,333,483 km (0.117 R)
• M21: 18,675,200 km (0.051 R)
• M22: 20,376,576 km (0.108 R)
• M23: 22,669,762 km (0.103 R)
• M24: 24,290,655 km (0.062 R)
• M25: 27,648,230 km (0.069 R)
• M26: 33,181,107 km (0.026 R)
• M27: 34,605,428 km (0.072 R)
• M28: 41,893,837 km (0.066 R)
• M29: 42,493,425 km (0.117 R)
• M30: 45,735,659 km (0.101 R)
• M31: 49,471,567 km (0.095 R)
• M32: 50,817,349 km (0.046 R)
• M33: 52,707,219 km (0.1 R)
• M34: 53,757,696 km (0.085 R)
• M35: 55,719,522 km (0.109 R)
• M36: 62,084,313 km (0.063 R)
• M37: 62,668,194 km (0.111 R)
• M38: 65,040,068 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 623.7

Radius: 7.7

Gravity: 10.52 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 8.47 AU - 9.35 AU

Year: 17447 Days

Day: 16.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,378,046 km

• M1: 95,743 km (0.096 R)
• M2: 1,002,156 km (0.07 R)
• M3: 1,804,300 km (0.054 R)
• M4: 2,534,038 km (0.117 R)
• M5: 3,932,629 km (0.117 R)
• M6: 4,463,701 km (0.12 R)
• M7: 4,901,275 km (0.091 R)
• M8: 5,940,980 km (0.103 R)
• M9: 6,555,079 km (0.097 R)
• M10: 7,347,051 km (0.117 R)
• M11: 13,146,362 km (0.085 R)
• M12: 14,116,055 km (0.058 R)
• M13: 14,764,263 km (0.111 R)
• M14: 17,311,166 km (0.088 R)
• M15: 17,803,643 km (0.111 R)
• M16: 19,163,188 km (0.114 R)
• M17: 22,375,653 km (0.115 R)
• M18: 24,568,907 km (0.112 R)
• M19: 30,671,303 km (0.117 R)
• M20: 31,392,515 km (0.112 R)
• M21: 34,520,008 km (0.099 R)
• M22: 38,401,025 km (0.091 R)
• M23: 43,010,285 km (0.094 R)
• M24: 51,433,094 km (0.106 R)
• M25: 53,654,922 km (0.07 R)
• M26: 54,351,150 km (0.088 R)
• M27: 59,395,142 km (0.048 R)
• M28: 65,136,110 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 563.5

Radius: 6.6

Gravity: 12.94 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 8.56 AU - 10.16 AU

Year: 18786 Days

Day: 20.3 Hours

Environment

Temp: -236 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,378,046 km

• M1: 83,476 km (0.093 R)
• M2: 467,194 km (0.112 R)
• M3: 770,279 km (0.096 R)
• M4: 1,038,060 km (0.09 R)
• M5: 1,565,243 km (0.091 R)
• M6: 2,604,050 km (0.098 R)
• M7: 3,949,234 km (0.083 R)
• M8: 4,355,392 km (0.106 R)
• M9: 8,067,963 km (0.067 R)
• M10: 10,021,262 km (0.107 R)
• M11: 10,365,337 km (0.068 R)
• M12: 13,545,788 km (0.075 R)
• M13: 15,280,974 km (0.113 R)
• M14: 17,159,325 km (0.063 R)
• M15: 18,751,495 km (0.117 R)
• M16: 20,257,347 km (0.106 R)
• M17: 20,900,169 km (0.084 R)
• M18: 21,367,662 km (0.082 R)
• M19: 21,746,594 km (0.108 R)
• M20: 22,323,443 km (0.101 R)
• M21: 24,733,166 km (0.072 R)
• M22: 25,786,484 km (0.078 R)
• M23: 29,241,597 km (0.111 R)
• M24: 31,505,012 km (0.111 R)
• M25: 32,243,427 km (0.071 R)
• M26: 36,243,076 km (0.11 R)
• M27: 36,646,841 km (0.105 R)
• M28: 42,619,237 km (0.113 R)
• M29: 43,673,902 km (0.101 R)
• M30: 50,369,304 km (0.065 R)
• M31: 51,888,021 km (0.062 R)
• M32: 54,839,438 km (0.118 R)
• M33: 55,193,835 km (0.074 R)
• M34: 62,221,345 km (0.107 R)
• M35: 62,607,008 km (0.083 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 14,723 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit