🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 294.5

Radius: 14.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.67 AU - 0.77 AU

Year: 394 Days

Day: 7.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 2.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,001,172 km

• M1: 185,651 km (0.113 R)
• M2: 709,543 km (0.107 R)
• M3: 1,315,564 km (0.099 R)
• M4: 1,936,544 km (0.06 R)
• M5: 2,418,399 km (0.095 R)
• M6: 2,887,688 km (0.104 R)
• M7: 3,566,563 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.6

Radius: 13.7

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.97 AU - 1.03 AU

Year: 646 Days

Day: 9.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,001,172 km

• M1: 170,392 km (0.111 R)
• M2: 601,234 km (0.071 R)
• M3: 1,113,756 km (0.065 R)
• M4: 1,589,477 km (0.081 R)
• M5: 2,202,978 km (0.083 R)
• M6: 2,656,709 km (0.097 R)
• M7: 3,196,308 km (0.056 R)
• M8: 4,631,550 km (0.065 R)
• M9: 5,620,990 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407.2

Radius: 14

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.04 AU - 1.52 AU

Year: 935 Days

Day: 8.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,001,172 km

• M1: 174,132 km (0.047 R)
• M2: 843,134 km (0.118 R)
• M3: 1,323,642 km (0.099 R)
• M4: 1,826,590 km (0.11 R)
• M5: 3,362,362 km (0.042 R)
• M6: 3,899,568 km (0.075 R)
• M7: 4,656,084 km (0.108 R)
• M8: 5,148,560 km (0.11 R)
• M9: 6,340,107 km (0.104 R)
• M10: 7,055,784 km (0.11 R)
• M11: 7,801,379 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.2

Radius: 8.9

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.54 AU - 3.7 AU

Year: 3558 Days

Day: 13.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 74,001,172 km

• M1: 111,151 km (0.049 R)
• M2: 395,238 km (0.103 R)
• M3: 1,000,959 km (0.058 R)
• M4: 1,323,193 km (0.06 R)
• M5: 1,667,867 km (0.093 R)
• M6: 1,952,103 km (0.112 R)
• M7: 2,432,910 km (0.081 R)
• M8: 2,869,287 km (0.084 R)
• M9: 3,281,429 km (0.082 R)
• M10: 4,027,623 km (0.059 R)
• M11: 4,784,439 km (0.059 R)
• M12: 5,082,139 km (0.06 R)
• M13: 5,825,491 km (0.107 R)
• M14: 6,252,443 km (0.067 R)
• M15: 9,078,796 km (0.084 R)
• M16: 14,531,189 km (0.081 R)
• M17: 15,052,388 km (0.115 R)
• M18: 15,694,163 km (0.103 R)
• M19: 16,242,888 km (0.106 R)
• M20: 18,384,681 km (0.114 R)
• M21: 19,242,176 km (0.093 R)
• M22: 21,368,410 km (0.095 R)
• M23: 23,009,948 km (0.043 R)
• M24: 23,433,160 km (0.095 R)
• M25: 24,077,628 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 535.8

Radius: 14.6

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 3.67 AU - 3.75 AU

Year: 4614 Days

Day: 5.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 74,001,172 km

• M1: 181,612 km (0.106 R)
• M2: 800,648 km (0.118 R)
• M3: 1,771,239 km (0.081 R)
• M4: 4,014,758 km (0.069 R)
• M5: 4,610,457 km (0.076 R)
• M6: 5,371,012 km (0.102 R)
• M7: 5,838,356 km (0.098 R)
• M8: 6,453,353 km (0.09 R)
• M9: 9,594,609 km (0.119 R)
• M10: 10,161,735 km (0.117 R)
• M11: 11,407,885 km (0.075 R)
• M12: 11,998,497 km (0.038 R)
• M13: 12,514,311 km (0.101 R)
• M14: 14,047,988 km (0.091 R)
• M15: 15,483,230 km (0.106 R)
• M16: 16,723,396 km (0.09 R)
• M17: 17,907,314 km (0.108 R)
• M18: 19,273,442 km (0.092 R)
• M19: 20,244,033 km (0.11 R)
• M20: 20,908,995 km (0.117 R)
• M21: 24,157,663 km (0.104 R)
• M22: 25,979,765 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 909.4

Radius: 9.1

Gravity: 10.98 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 5.38 AU - 6.44 AU

Year: 9277 Days

Day: 5.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,001,172 km

• M1: 119,379 km (0.086 R)
• M2: 445,353 km (0.116 R)
• M3: 770,279 km (0.117 R)
• M4: 1,108,221 km (0.11 R)
• M5: 1,409,810 km (0.107 R)
• M6: 3,078,874 km (0.069 R)
• M7: 3,584,215 km (0.054 R)
• M8: 4,791,620 km (0.116 R)
• M9: 5,403,924 km (0.117 R)
• M10: 7,022,124 km (0.075 R)
• M11: 9,323,538 km (0.082 R)
• M12: 11,294,789 km (0.054 R)
• M13: 12,202,549 km (0.106 R)
• M14: 18,464,865 km (0.032 R)
• M15: 19,803,317 km (0.055 R)
• M16: 21,037,051 km (0.07 R)
• M17: 23,930,423 km (0.04 R)
• M18: 25,139,623 km (0.052 R)
• M19: 27,078,860 km (0.057 R)
• M20: 29,115,635 km (0.109 R)
• M21: 36,681,996 km (0.09 R)
• M22: 38,037,802 km (0.115 R)
• M23: 45,181,250 km (0.104 R)
• M24: 48,331,033 km (0.039 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 93.5

Radius: 7.2

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 8.9 AU - 9.96 AU

Year: 18697 Days

Day: 16.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,001,172 km

• M1: 97,987 km (0.078 R)
• M2: 435,629 km (0.062 R)
• M3: 784,940 km (0.115 R)
• M4: 1,202,767 km (0.101 R)
• M5: 1,705,416 km (0.119 R)
• M6: 2,075,820 km (0.047 R)
• M7: 2,760,230 km (0.08 R)
• M8: 3,563,122 km (0.118 R)
• M9: 3,798,290 km (0.108 R)
• M10: 4,485,692 km (0.043 R)
• M11: 5,283,198 km (0.057 R)
• M12: 6,546,852 km (0.079 R)
• M13: 7,842,220 km (0.065 R)
• M14: 9,657,291 km (0.12 R)
• M15: 14,926,726 km (0.115 R)
• M16: 15,727,972 km (0.105 R)
• M17: 17,416,035 km (0.106 R)
• M18: 26,343,437 km (0.116 R)
• M19: 26,610,170 km (0.104 R)
• M20: 28,248,267 km (0.071 R)
• M21: 29,952,486 km (0.051 R)
• M22: 32,635,673 km (0.094 R)
• M23: 32,943,396 km (0.07 R)
• M24: 35,474,891 km (0.057 R)
• M25: 36,127,587 km (0.071 R)
• M26: 36,898,913 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 190.2

Radius: 6.2

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 7.67 AU - 11.49 AU

Year: 19145 Days

Day: 18.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,001,172 km

• M1: 78,240 km (0.097 R)
• M2: 285,582 km (0.09 R)
• M3: 497,862 km (0.103 R)
• M4: 820,245 km (0.06 R)
• M5: 2,053,829 km (0.073 R)
• M6: 2,398,652 km (0.091 R)
• M7: 2,697,698 km (0.109 R)
• M8: 2,954,558 km (0.063 R)
• M9: 3,346,504 km (0.096 R)
• M10: 4,732,229 km (0.079 R)
• M11: 10,737,088 km (0.077 R)
• M12: 11,494,352 km (0.114 R)
• M13: 19,981,788 km (0.051 R)
• M14: 22,225,307 km (0.099 R)
• M15: 24,909,093 km (0.119 R)
• M16: 27,304,304 km (0.11 R)
• M17: 29,639,826 km (0.062 R)
• M18: 32,770,012 km (0.068 R)
• M19: 36,233,053 km (0.086 R)
• M20: 36,832,941 km (0.118 R)
• M21: 38,672,396 km (0.117 R)
• M22: 39,047,587 km (0.053 R)
• M23: 42,799,652 km (0.03 R)
• M24: 44,147,379 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 602.8

Radius: 4.1

Gravity: 35.86 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 8.08 AU - 11.94 AU

Year: 20449 Days

Day: 21.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 74,001,172 km

• M1: 51,013 km (0.103 R)
• M2: 178,769 km (0.118 R)
• M3: 342,729 km (0.028 R)
• M4: 1,151,904 km (0.109 R)
• M5: 1,306,289 km (0.089 R)
• M6: 1,572,274 km (0.051 R)
• M7: 2,589,539 km (0.111 R)
• M8: 2,881,255 km (0.093 R)
• M9: 3,559,083 km (0.105 R)
• M10: 4,205,645 km (0.046 R)
• M11: 4,891,102 km (0.072 R)
• M12: 5,413,199 km (0.073 R)
• M13: 6,264,860 km (0.109 R)
• M14: 6,393,364 km (0.062 R)
• M15: 7,016,888 km (0.076 R)
• M16: 7,631,137 km (0.114 R)
• M17: 9,020,153 km (0.12 R)
• M18: 9,294,815 km (0.104 R)
• M19: 9,631,560 km (0.119 R)
• M20: 11,695,412 km (0.047 R)
• M21: 11,825,412 km (0.104 R)
• M22: 13,459,769 km (0.111 R)
• M23: 14,256,827 km (0.088 R)
• M24: 16,918,921 km (0.036 R)
• M25: 17,505,344 km (0.106 R)
• M26: 22,292,476 km (0.083 R)
• M27: 25,091,153 km (0.09 R)
• M28: 26,073,712 km (0.071 R)
• M29: 26,855,511 km (0.118 R)
• M30: 27,767,908 km (0.113 R)
• M31: 31,624,541 km (0.082 R)
• M32: 33,943,458 km (0.098 R)
• M33: 45,948,238 km (0.068 R)
• M34: 48,245,313 km (0.093 R)
• M35: 54,864,121 km (0.096 R)
• M36: 68,171,450 km (0.083 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: 309 - 15,462 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit