🌌 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 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.7

Radius: 8.6

Gravity: 6.28 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.61 AU - 0.61 AU

Year: 335 Days

Day: 7.3 Hours

Environment

Temp: -148 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,533,875 km

• M1: 106,962 km (0.045 R)
• M2: 407,654 km (0.079 R)
• M3: 679,922 km (0.069 R)
• M4: 1,080,695 km (0.113 R)
• M5: 1,836,763 km (0.073 R)
• M6: 2,203,726 km (0.081 R)
• M7: 2,556,628 km (0.03 R)
• M8: 2,996,296 km (0.086 R)
• M9: 3,292,200 km (0.117 R)
• M10: 3,675,320 km (0.072 R)
• M11: 4,124,862 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 660.1

Radius: 13.8

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 0.99 AU - 1.23 AU

Year: 822 Days

Day: 9.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,533,875 km

• M1: 174,282 km (0.067 R)
• M2: 664,813 km (0.117 R)
• M3: 1,441,974 km (0.094 R)
• M4: 2,020,918 km (0.05 R)
• M5: 3,157,113 km (0.047 R)
• M6: 3,890,293 km (0.092 R)
• M7: 4,854,601 km (0.116 R)
• M8: 5,375,201 km (0.119 R)
• M9: 6,381,696 km (0.051 R)
• M10: 7,770,263 km (0.051 R)
• M11: 8,561,785 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939.3

Radius: 8.1

Gravity: 14.32 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 1.15 AU - 1.27 AU

Year: 936 Days

Day: 12.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,533,875 km

• M1: 101,727 km (0.099 R)
• M2: 360,531 km (0.084 R)
• M3: 629,508 km (0.12 R)
• M4: 894,894 km (0.118 R)
• M5: 1,166,115 km (0.063 R)
• M6: 1,674,299 km (0.106 R)
• M7: 1,959,732 km (0.115 R)
• M8: 2,426,178 km (0.119 R)
• M9: 2,978,045 km (0.108 R)
• M10: 3,611,143 km (0.055 R)
• M11: 3,911,087 km (0.098 R)
• M12: 4,227,486 km (0.084 R)
• M13: 4,725,049 km (0.089 R)
• M14: 5,462,117 km (0.1 R)
• M15: 5,752,188 km (0.099 R)
• M16: 7,536,442 km (0.107 R)
• M17: 9,046,333 km (0.064 R)
• M18: 9,512,480 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.3

Radius: 8.6

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 2.86 AU - 2.86 AU

Year: 3400 Days

Day: 12.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,533,875 km

• M1: 107,411 km (0.092 R)
• M2: 387,907 km (0.094 R)
• M3: 666,459 km (0.09 R)
• M4: 1,025,045 km (0.058 R)
• M5: 1,511,088 km (0.026 R)
• M6: 2,274,187 km (0.119 R)
• M7: 2,912,072 km (0.053 R)
• M8: 3,554,595 km (0.091 R)
• M9: 3,948,337 km (0.116 R)
• M10: 4,561,389 km (0.069 R)
• M11: 5,119,389 km (0.073 R)
• M12: 5,899,392 km (0.116 R)
• M13: 6,291,189 km (0.119 R)
• M14: 6,756,139 km (0.1 R)
• M15: 10,006,153 km (0.117 R)
• M16: 11,025,513 km (0.04 R)
• M17: 12,279,592 km (0.109 R)
• M18: 13,358,043 km (0.043 R)
• M19: 13,852,164 km (0.065 R)
• M20: 16,919,968 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 864.6

Radius: 12.2

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 2.71 AU - 3.59 AU

Year: 3930 Days

Day: 10.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,533,875 km

• M1: 153,936 km (0.068 R)
• M2: 558,150 km (0.113 R)
• M3: 1,127,070 km (0.117 R)
• M4: 1,920,687 km (0.102 R)
• M5: 3,524,526 km (0.115 R)
• M6: 4,060,685 km (0.118 R)
• M7: 4,700,365 km (0.115 R)
• M8: 5,628,919 km (0.107 R)
• M9: 8,652,442 km (0.11 R)
• M10: 9,470,892 km (0.098 R)
• M11: 10,728,561 km (0.119 R)
• M12: 11,627,046 km (0.045 R)
• M13: 13,319,147 km (0.084 R)
• M14: 14,040,059 km (0.109 R)
• M15: 16,128,296 km (0.103 R)
• M16: 16,769,622 km (0.12 R)
• M17: 18,796,075 km (0.066 R)
• M18: 20,100,867 km (0.08 R)
• M19: 26,246,498 km (0.103 R)
• M20: 26,971,299 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.8

Radius: 14.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 3.35 AU - 4.01 AU

Year: 4962 Days

Day: 5.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 72,533,875 km

• M1: 179,368 km (0.055 R)
• M2: 869,762 km (0.078 R)
• M3: 2,403,439 km (0.067 R)
• M4: 3,420,256 km (0.116 R)
• M5: 4,536,705 km (0.047 R)
• M6: 5,656,445 km (0.114 R)
• M7: 6,479,832 km (0.065 R)
• M8: 7,654,624 km (0.092 R)
• M9: 8,928,599 km (0.119 R)
• M10: 14,222,120 km (0.115 R)
• M11: 16,199,505 km (0.058 R)
• M12: 19,630,831 km (0.07 R)
• M13: 20,559,086 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 385.5

Radius: 5.8

Gravity: 11.46 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 7.17 AU - 9.45 AU

Year: 16839 Days

Day: 17.1 Hours

Environment

Temp: -225 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 72,533,875 km

• M1: 72,106 km (0.066 R)
• M2: 305,628 km (0.095 R)
• M3: 700,866 km (0.083 R)
• M4: 967,300 km (0.025 R)
• M5: 1,408,464 km (0.081 R)
• M6: 3,264,525 km (0.091 R)
• M7: 3,843,618 km (0.099 R)
• M8: 5,306,835 km (0.104 R)
• M9: 5,588,528 km (0.066 R)
• M10: 8,213,222 km (0.087 R)
• M11: 12,276,450 km (0.099 R)
• M12: 16,081,771 km (0.101 R)
• M13: 17,123,870 km (0.118 R)
• M14: 20,691,779 km (0.098 R)
• M15: 21,478,065 km (0.097 R)
• M16: 21,744,499 km (0.066 R)
• M17: 32,058,076 km (0.071 R)
• M18: 32,639,563 km (0.116 R)
• M19: 35,036,270 km (0.106 R)
• M20: 45,504,980 km (0.109 R)
• M21: 47,731,744 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.5

Radius: 3.1

Gravity: 22.42 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 8.58 AU - 10.52 AU

Year: 20745 Days

Day: 15.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 72,533,875 km

• M1: 38,596 km (0.07 R)
• M2: 144,512 km (0.077 R)
• M3: 317,746 km (0.068 R)
• M4: 906,862 km (0.095 R)
• M5: 1,632,412 km (0.08 R)
• M6: 2,722,532 km (0.095 R)
• M7: 3,086,054 km (0.054 R)
• M8: 3,880,868 km (0.066 R)
• M9: 5,717,331 km (0.119 R)
• M10: 6,009,197 km (0.07 R)
• M11: 6,862,802 km (0.054 R)
• M12: 7,575,337 km (0.085 R)
• M13: 8,152,635 km (0.097 R)
• M14: 8,999,509 km (0.113 R)
• M15: 9,748,695 km (0.071 R)
• M16: 13,288,031 km (0.099 R)
• M17: 13,414,740 km (0.039 R)
• M18: 17,445,655 km (0.08 R)
• M19: 18,605,786 km (0.081 R)
• M20: 19,245,018 km (0.102 R)
• M21: 21,597,744 km (0.066 R)
• M22: 21,860,737 km (0.089 R)
• M23: 24,799,288 km (0.107 R)
• M24: 25,378,082 km (0.057 R)
• M25: 28,198,600 km (0.041 R)
• M26: 33,157,470 km (0.09 R)
• M27: 39,314,320 km (0.106 R)
• M28: 41,976,265 km (0.096 R)
• M29: 46,335,547 km (0.084 R)
• M30: 46,480,956 km (0.114 R)
• M31: 50,370,052 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 493.6

Radius: 3.8

Gravity: 34.18 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 8.71 AU - 11.11 AU

Year: 21929 Days

Day: 24.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 72,533,875 km

• M1: 51,162 km (0.055 R)
• M2: 737,966 km (0.091 R)
• M3: 1,024,446 km (0.104 R)
• M4: 1,380,938 km (0.059 R)
• M5: 1,690,157 km (0.075 R)
• M6: 1,908,121 km (0.065 R)
• M7: 2,605,097 km (0.048 R)
• M8: 3,429,232 km (0.044 R)
• M9: 4,183,804 km (0.099 R)
• M10: 5,494,730 km (0.112 R)
• M11: 5,690,703 km (0.098 R)
• M12: 5,850,773 km (0.093 R)
• M13: 7,525,072 km (0.075 R)
• M14: 9,217,323 km (0.08 R)
• M15: 10,717,191 km (0.112 R)
• M16: 14,410,912 km (0.112 R)
• M17: 15,470,664 km (0.067 R)
• M18: 15,626,246 km (0.099 R)
• M19: 18,258,719 km (0.103 R)
• M20: 23,963,485 km (0.072 R)
• M21: 27,899,554 km (0.061 R)
• M22: 30,749,992 km (0.091 R)
• M23: 31,119,499 km (0.074 R)
• M24: 34,182,066 km (0.08 R)
• M25: 40,307,201 km (0.115 R)
• M26: 42,247,785 km (0.111 R)
• M27: 42,399,477 km (0.112 R)
• M28: 57,045,707 km (0.073 R)
• M29: 58,918,373 km (0.085 R)
• M30: 63,778,808 km (0.069 R)
• M31: 64,781,862 km (0.076 R)
• M32: 70,594,338 km (0.041 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 10,599 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit