🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.44 AU - 0.66 AU

Year: 263 Days

Day: 41.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 15.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 663.3

Radius: 12.6

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.61 AU - 0.77 AU

Year: 370 Days

Day: 7.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,273,510 km

• M1: 156,779 km (0.107 R)
• M2: 728,841 km (0.089 R)
• M3: 1,143,377 km (0.071 R)
• M4: 1,566,439 km (0.086 R)
• M5: 2,024,358 km (0.072 R)
• M6: 2,426,328 km (0.071 R)
• M7: 2,852,083 km (0.053 R)
• M8: 3,339,024 km (0.058 R)
• M9: 3,844,366 km (0.109 R)
• M10: 4,677,327 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.9

Radius: 8.4

Gravity: 10.37 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 1.63 AU - 1.91 AU

Year: 1520 Days

Day: 11.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 63.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,273,510 km

• M1: 104,868 km (0.083 R)
• M2: 392,545 km (0.047 R)
• M3: 734,825 km (0.085 R)
• M4: 1,350,270 km (0.069 R)
• M5: 1,754,484 km (0.086 R)
• M6: 2,030,193 km (0.073 R)
• M7: 2,670,322 km (0.091 R)
• M8: 3,295,940 km (0.114 R)
• M9: 4,051,709 km (0.113 R)
• M10: 5,105,327 km (0.099 R)
• M11: 5,472,141 km (0.075 R)
• M12: 5,902,982 km (0.074 R)
• M13: 6,832,284 km (0.094 R)
• M14: 7,251,607 km (0.098 R)
• M15: 9,040,648 km (0.102 R)
• M16: 11,871,189 km (0.054 R)
• M17: 12,286,024 km (0.064 R)
• M18: 13,144,716 km (0.093 R)
• M19: 13,752,682 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.3

Radius: 12.5

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 2.46 AU - 3.54 AU

Year: 3355 Days

Day: 5.3 Hours

Environment

Temp: -213 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,273,510 km

• M1: 156,928 km (0.09 R)
• M2: 862,731 km (0.107 R)
• M3: 1,272,479 km (0.109 R)
• M4: 2,266,857 km (0.057 R)
• M5: 3,181,498 km (0.119 R)
• M6: 4,642,770 km (0.11 R)
• M7: 5,168,457 km (0.08 R)
• M8: 6,254,388 km (0.06 R)
• M9: 6,658,302 km (0.113 R)
• M10: 7,712,518 km (0.114 R)
• M11: 8,521,544 km (0.064 R)
• M12: 9,611,514 km (0.042 R)
• M13: 10,033,679 km (0.099 R)
• M14: 12,023,330 km (0.046 R)
• M15: 15,068,545 km (0.108 R)
• M16: 19,616,769 km (0.119 R)
• M17: 21,772,474 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.1

Radius: 9.4

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 4.57 AU - 4.99 AU

Year: 6748 Days

Day: 6.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,273,510 km

• M1: 116,986 km (0.057 R)
• M2: 420,370 km (0.097 R)
• M3: 1,649,466 km (0.074 R)
• M4: 2,204,923 km (0.065 R)
• M5: 2,562,612 km (0.079 R)
• M6: 3,396,021 km (0.041 R)
• M7: 3,923,653 km (0.098 R)
• M8: 4,400,122 km (0.119 R)
• M9: 5,143,025 km (0.103 R)
• M10: 5,935,296 km (0.113 R)
• M11: 7,533,300 km (0.117 R)
• M12: 9,012,524 km (0.104 R)
• M13: 9,487,497 km (0.119 R)
• M14: 10,161,884 km (0.042 R)
• M15: 11,707,230 km (0.095 R)
• M16: 19,826,056 km (0.108 R)
• M17: 21,531,472 km (0.094 R)
• M18: 31,940,641 km (0.084 R)
• M19: 34,591,366 km (0.076 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 535.9

Radius: 7.3

Gravity: 10.06 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 6.42 AU - 6.64 AU

Year: 10774 Days

Day: 21.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 74,273,510 km

• M1: 91,554 km (0.112 R)
• M2: 347,665 km (0.047 R)
• M3: 661,821 km (0.098 R)
• M4: 1,064,838 km (0.055 R)
• M5: 1,538,764 km (0.091 R)
• M6: 3,077,976 km (0.103 R)
• M7: 4,145,806 km (0.052 R)
• M8: 4,454,725 km (0.043 R)
• M9: 4,809,123 km (0.096 R)
• M10: 5,608,125 km (0.104 R)
• M11: 7,714,762 km (0.08 R)
• M12: 9,557,210 km (0.095 R)
• M13: 9,948,109 km (0.119 R)
• M14: 10,606,190 km (0.087 R)
• M15: 12,990,481 km (0.104 R)
• M16: 14,338,657 km (0.054 R)
• M17: 15,643,001 km (0.036 R)
• M18: 17,238,611 km (0.065 R)
• M19: 19,093,027 km (0.095 R)
• M20: 21,158,524 km (0.092 R)
• M21: 21,405,959 km (0.111 R)
• M22: 21,991,037 km (0.091 R)
• M23: 24,438,458 km (0.115 R)
• M24: 27,158,745 km (0.114 R)
• M25: 30,074,558 km (0.085 R)
• M26: 31,446,819 km (0.091 R)
• M27: 32,202,737 km (0.116 R)
• M28: 34,886,822 km (0.063 R)
• M29: 37,234,461 km (0.091 R)
• M30: 39,685,473 km (0.093 R)
• M31: 45,315,140 km (0.095 R)

Asteroid Belt

Center: 8.38 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 10.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 392.6

Radius: 4.4

Gravity: 20.28 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 8.66 AU - 11.8 AU

Year: 21127 Days

Day: 24.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,273,510 km

• M1: 54,753 km (0.102 R)
• M2: 212,279 km (0.076 R)
• M3: 449,542 km (0.106 R)
• M4: 831,016 km (0.082 R)
• M5: 971,489 km (0.07 R)
• M6: 1,219,223 km (0.107 R)
• M7: 1,462,020 km (0.1 R)
• M8: 2,161,091 km (0.092 R)
• M9: 2,629,183 km (0.031 R)
• M10: 3,034,892 km (0.068 R)
• M11: 3,345,607 km (0.116 R)
• M12: 3,821,777 km (0.117 R)
• M13: 5,483,510 km (0.113 R)
• M14: 5,944,271 km (0.087 R)
• M15: 6,224,618 km (0.096 R)
• M16: 6,942,388 km (0.1 R)
• M17: 7,343,909 km (0.108 R)
• M18: 8,095,788 km (0.085 R)
• M19: 8,540,542 km (0.107 R)
• M20: 9,001,453 km (0.081 R)
• M21: 9,371,259 km (0.111 R)
• M22: 10,311,482 km (0.108 R)
• M23: 13,034,014 km (0.106 R)
• M24: 16,354,937 km (0.119 R)
• M25: 18,885,834 km (0.106 R)
• M26: 20,650,041 km (0.095 R)
• M27: 24,502,635 km (0.074 R)
• M28: 29,957,722 km (0.111 R)
• M29: 31,018,670 km (0.119 R)
• M30: 34,223,654 km (0.092 R)
• M31: 39,434,298 km (0.109 R)
• M32: 43,934,800 km (0.098 R)
• M33: 48,123,391 km (0.047 R)
• M34: 60,391,464 km (0.029 R)
• M35: 61,891,930 km (0.102 R)
• M36: 62,651,439 km (0.073 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.6

Radius: 4.1

Gravity: 30.97 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 8.55 AU - 12.55 AU

Year: 22126 Days

Day: 16.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,273,510 km

• M1: 51,162 km (0.092 R)
• M2: 1,325,587 km (0.084 R)
• M3: 2,015,233 km (0.116 R)
• M4: 2,742,578 km (0.096 R)
• M5: 2,994,052 km (0.085 R)
• M6: 6,460,234 km (0.043 R)
• M7: 6,859,661 km (0.099 R)
• M8: 7,181,745 km (0.093 R)
• M9: 8,106,409 km (0.062 R)
• M10: 11,934,170 km (0.053 R)
• M11: 17,826,082 km (0.098 R)
• M12: 28,102,110 km (0.041 R)
• M13: 35,003,209 km (0.083 R)
• M14: 38,769,934 km (0.116 R)
• M15: 40,676,259 km (0.082 R)
• M16: 48,422,886 km (0.086 R)
• M17: 48,758,434 km (0.085 R)
• M18: 51,150,654 km (0.049 R)
• M19: 54,520,794 km (0.104 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 15,238 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit