🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.3

Radius: 8.9

Gravity: 10.84 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.62 AU - 0.88 AU

Year: 419 Days

Day: 10.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 61 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 71,383,036 km

• M1: 111,450 km (0.069 R)
• M2: 394,190 km (0.085 R)
• M3: 687,851 km (0.051 R)
• M4: 1,163,722 km (0.093 R)
• M5: 1,508,246 km (0.075 R)
• M6: 2,071,332 km (0.062 R)
• M7: 2,543,463 km (0.061 R)
• M8: 2,886,042 km (0.06 R)
• M9: 3,439,704 km (0.082 R)
• M10: 3,860,074 km (0.101 R)
• M11: 4,804,336 km (0.09 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.2

Radius: 11.9

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.86 AU - 0.95 AU

Year: 551 Days

Day: 8.8 Hours

Environment

Temp: -154 °C

Axial Tilt: 157.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 71,383,036 km

• M1: 148,102 km (0.057 R)
• M2: 751,729 km (0.064 R)
• M3: 1,248,394 km (0.05 R)
• M4: 1,702,723 km (0.108 R)
• M5: 2,097,811 km (0.117 R)
• M6: 2,759,931 km (0.025 R)
• M7: 3,396,171 km (0.083 R)
• M8: 4,003,837 km (0.12 R)
• M9: 4,487,637 km (0.108 R)
• M10: 4,978,468 km (0.077 R)
• M11: 5,353,210 km (0.038 R)
• M12: 6,086,539 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 81.5

Radius: 13.5

Gravity: 0.45 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.84 AU - 1.36 AU

Year: 745 Days

Day: 12.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 71,383,036 km

• M1: 167,849 km (0.055 R)
• M2: 680,670 km (0.077 R)
• M3: 1,141,133 km (0.084 R)
• M4: 1,589,477 km (0.06 R)
• M5: 2,011,044 km (0.102 R)
• M6: 2,636,662 km (0.097 R)
• M7: 3,767,622 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.6

Radius: 8.5

Gravity: 11.29 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 1.05 AU - 1.17 AU

Year: 755 Days

Day: 11.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,383,036 km

• M1: 105,766 km (0.031 R)
• M2: 425,157 km (0.101 R)
• M3: 1,019,360 km (0.051 R)
• M4: 1,622,688 km (0.1 R)
• M5: 2,082,253 km (0.083 R)
• M6: 2,391,771 km (0.092 R)
• M7: 3,844,815 km (0.087 R)
• M8: 4,281,192 km (0.067 R)
• M9: 5,216,328 km (0.101 R)
• M10: 6,094,468 km (0.106 R)
• M11: 7,022,722 km (0.112 R)
• M12: 7,820,977 km (0.097 R)
• M13: 8,652,292 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.4

Radius: 8.1

Gravity: 15.11 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.99 AU - 1.61 AU

Year: 957 Days

Day: 11.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,383,036 km

• M1: 100,679 km (0.108 R)
• M2: 374,892 km (0.112 R)
• M3: 988,393 km (0.054 R)
• M4: 1,283,101 km (0.066 R)
• M5: 1,609,823 km (0.066 R)
• M6: 1,890,917 km (0.088 R)
• M7: 2,182,932 km (0.089 R)
• M8: 2,677,951 km (0.107 R)
• M9: 3,826,564 km (0.067 R)
• M10: 4,262,492 km (0.097 R)
• M11: 4,638,432 km (0.099 R)
• M12: 4,901,275 km (0.093 R)
• M13: 5,539,609 km (0.096 R)
• M14: 7,377,718 km (0.037 R)
• M15: 7,894,130 km (0.099 R)
• M16: 8,913,041 km (0.034 R)
• M17: 10,362,345 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.1

Radius: 14

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.77 AU - 2.29 AU

Year: 1867 Days

Day: 6.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,383,036 km

• M1: 174,132 km (0.056 R)
• M2: 764,146 km (0.09 R)
• M3: 1,395,150 km (0.104 R)
• M4: 1,869,973 km (0.09 R)
• M5: 2,467,318 km (0.05 R)
• M6: 2,949,322 km (0.027 R)
• M7: 4,294,955 km (0.072 R)
• M8: 4,957,075 km (0.041 R)
• M9: 5,993,190 km (0.06 R)
• M10: 6,901,249 km (0.072 R)
• M11: 8,222,497 km (0.099 R)
• M12: 9,246,794 km (0.074 R)
• M13: 9,773,229 km (0.065 R)
• M14: 12,712,677 km (0.065 R)
• M15: 13,323,336 km (0.052 R)
• M16: 13,996,078 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 608.5

Radius: 7.6

Gravity: 10.53 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.28 AU - 8.8 AU

Year: 14720 Days

Day: 15.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 71,383,036 km

• M1: 97,837 km (0.096 R)
• M2: 392,246 km (0.096 R)
• M3: 800,049 km (0.086 R)
• M4: 1,189,901 km (0.038 R)
• M5: 2,008,800 km (0.071 R)
• M6: 2,825,904 km (0.055 R)
• M7: 3,109,841 km (0.095 R)
• M8: 3,680,407 km (0.111 R)
• M9: 3,961,800 km (0.09 R)
• M10: 4,318,591 km (0.092 R)
• M11: 4,761,850 km (0.114 R)
• M12: 5,375,799 km (0.119 R)
• M13: 5,739,023 km (0.064 R)
• M14: 6,196,493 km (0.115 R)
• M15: 6,678,049 km (0.064 R)
• M16: 7,625,452 km (0.074 R)
• M17: 9,625,426 km (0.118 R)
• M18: 10,271,390 km (0.102 R)
• M19: 12,073,745 km (0.089 R)
• M20: 18,565,993 km (0.109 R)
• M21: 21,131,896 km (0.085 R)
• M22: 25,309,267 km (0.037 R)
• M23: 25,816,254 km (0.119 R)
• M24: 26,226,601 km (0.053 R)
• M25: 28,671,629 km (0.099 R)
• M26: 29,445,050 km (0.076 R)
• M27: 33,521,442 km (0.106 R)
• M28: 36,782,376 km (0.104 R)
• M29: 40,524,268 km (0.026 R)
• M30: 41,357,827 km (0.108 R)
• M31: 43,059,204 km (0.108 R)
• M32: 44,219,036 km (0.069 R)
• M33: 52,598,163 km (0.106 R)
• M34: 53,423,793 km (0.107 R)
• M35: 57,158,803 km (0.116 R)
• M36: 59,624,326 km (0.049 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 695.9

Radius: 4.7

Gravity: 31.5 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 10.54 AU - 10.7 AU

Year: 22346 Days

Day: 24.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 71,383,036 km

• M1: 59,390 km (0.112 R)
• M2: 230,979 km (0.104 R)
• M3: 622,926 km (0.114 R)
• M4: 1,021,155 km (0.098 R)
• M5: 1,865,186 km (0.096 R)
• M6: 2,107,535 km (0.097 R)
• M7: 2,258,479 km (0.12 R)
• M8: 2,730,161 km (0.091 R)
• M9: 3,124,950 km (0.065 R)
• M10: 3,467,529 km (0.1 R)
• M11: 4,610,307 km (0.118 R)
• M12: 4,940,470 km (0.101 R)
• M13: 7,409,283 km (0.104 R)
• M14: 7,810,954 km (0.095 R)
• M15: 8,823,282 km (0.104 R)
• M16: 9,047,081 km (0.102 R)
• M17: 12,661,365 km (0.091 R)
• M18: 15,786,615 km (0.056 R)
• M19: 21,431,840 km (0.108 R)
• M20: 21,633,498 km (0.113 R)
• M21: 29,267,178 km (0.085 R)
• M22: 30,268,436 km (0.1 R)
• M23: 31,813,034 km (0.082 R)
• M24: 32,471,863 km (0.098 R)
• M25: 33,139,668 km (0.064 R)
• M26: 34,779,710 km (0.107 R)
• M27: 35,761,072 km (0.057 R)
• M28: 37,194,668 km (0.098 R)
• M29: 41,411,982 km (0.053 R)
• M30: 42,197,221 km (0.086 R)
• M31: 42,355,496 km (0.114 R)
• M32: 43,635,455 km (0.118 R)
• M33: 47,801,456 km (0.105 R)
• M34: 53,141,203 km (0.089 R)
• M35: 59,657,686 km (0.102 R)
• M36: 60,658,795 km (0.102 R)
• M37: 61,467,671 km (0.09 R)
• M38: 77,283,756 km (0.111 R)
• M39: 80,401,226 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 433.2

Radius: 6.8

Gravity: 9.37 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 9.83 AU - 11.73 AU

Year: 22853 Days

Day: 20.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 71,383,036 km

• M1: 84,672 km (0.091 R)
• M2: 565,929 km (0.046 R)
• M3: 1,009,935 km (0.05 R)
• M4: 1,411,456 km (0.09 R)
• M5: 1,878,052 km (0.051 R)
• M6: 2,313,082 km (0.117 R)
• M7: 2,837,722 km (0.107 R)
• M8: 3,725,436 km (0.09 R)
• M9: 4,185,150 km (0.065 R)
• M10: 4,613,598 km (0.118 R)
• M11: 8,068,561 km (0.115 R)
• M12: 8,370,450 km (0.077 R)
• M13: 9,266,990 km (0.099 R)
• M14: 11,946,886 km (0.062 R)
• M15: 12,740,353 km (0.101 R)
• M16: 15,027,555 km (0.078 R)
• M17: 15,562,218 km (0.087 R)
• M18: 20,582,573 km (0.12 R)
• M19: 23,001,271 km (0.113 R)
• M20: 24,435,316 km (0.025 R)
• M21: 25,495,367 km (0.051 R)
• M22: 31,754,990 km (0.047 R)
• M23: 51,543,049 km (0.048 R)
• M24: 52,234,640 km (0.117 R)
• M25: 54,346,214 km (0.085 R)
• M26: 60,253,983 km (0.119 R)
• M27: 63,362,178 km (0.113 R)
• M28: 63,956,680 km (0.053 R)
• M29: 68,638,345 km (0.062 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 379 - 18,013 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit