🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 618.2

Radius: 14.1

Gravity: 3.11 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.71 AU - 0.87 AU

Year: 461 Days

Day: 9.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 78,236,810 km

• M1: 175,329 km (0.098 R)
• M2: 657,483 km (0.082 R)
• M3: 1,100,292 km (0.109 R)
• M4: 1,633,609 km (0.087 R)
• M5: 2,349,584 km (0.113 R)
• M6: 3,001,980 km (0.041 R)
• M7: 3,490,418 km (0.081 R)
• M8: 4,085,368 km (0.116 R)
• M9: 4,688,397 km (0.047 R)
• M10: 5,382,831 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.9

Radius: 12.7

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.84 AU - 2.5 AU

Year: 2097 Days

Day: 11.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 78,236,810 km

• M1: 158,275 km (0.074 R)
• M2: 614,398 km (0.115 R)
• M3: 1,134,700 km (0.098 R)
• M4: 1,891,067 km (0.055 R)
• M5: 2,390,724 km (0.119 R)
• M6: 2,868,838 km (0.087 R)
• M7: 3,981,248 km (0.074 R)
• M8: 4,403,413 km (0.116 R)
• M9: 6,163,432 km (0.107 R)
• M10: 7,542,276 km (0.113 R)
• M11: 8,192,578 km (0.085 R)
• M12: 8,746,090 km (0.105 R)
• M13: 9,676,589 km (0.072 R)
• M14: 10,110,871 km (0.108 R)
• M15: 14,769,349 km (0.114 R)
• M16: 15,689,376 km (0.092 R)
• M17: 16,544,627 km (0.073 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.9

Radius: 13.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.25 AU - 3.37 AU

Year: 3090 Days

Day: 5.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 78,236,810 km

• M1: 172,636 km (0.08 R)
• M2: 720,613 km (0.103 R)
• M3: 1,541,307 km (0.116 R)
• M4: 2,130,722 km (0.07 R)
• M5: 2,582,209 km (0.111 R)
• M6: 3,114,029 km (0.033 R)
• M7: 3,881,915 km (0.112 R)
• M8: 4,646,659 km (0.083 R)
• M9: 5,188,353 km (0.103 R)
• M10: 6,689,568 km (0.109 R)
• M11: 7,468,674 km (0.058 R)
• M12: 8,000,943 km (0.054 R)
• M13: 9,613,907 km (0.082 R)
• M14: 10,940,541 km (0.083 R)
• M15: 11,473,259 km (0.035 R)
• M16: 12,385,956 km (0.08 R)
• M17: 12,964,750 km (0.091 R)
• M18: 14,176,941 km (0.046 R)
• M19: 14,764,861 km (0.086 R)
• M20: 15,605,601 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 201.3

Radius: 14.8

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 3.33 AU - 3.33 AU

Year: 3986 Days

Day: 8.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,236,810 km

• M1: 184,005 km (0.052 R)
• M2: 814,710 km (0.094 R)
• M3: 1,326,933 km (0.037 R)
• M4: 3,056,284 km (0.064 R)
• M5: 6,066,642 km (0.09 R)
• M6: 8,667,850 km (0.097 R)
• M7: 10,820,264 km (0.113 R)
• M8: 13,568,676 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.4

Radius: 9.1

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 4.29 AU - 4.77 AU

Year: 6325 Days

Day: 13.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 78,236,810 km

• M1: 127,607 km (0.119 R)
• M2: 559,496 km (0.109 R)
• M3: 948,301 km (0.1 R)
• M4: 1,253,481 km (0.077 R)
• M5: 1,569,431 km (0.088 R)
• M6: 1,951,654 km (0.075 R)
• M7: 5,178,330 km (0.034 R)
• M8: 7,040,375 km (0.115 R)
• M9: 7,584,462 km (0.102 R)
• M10: 8,121,968 km (0.079 R)
• M11: 10,611,426 km (0.11 R)
• M12: 11,940,154 km (0.064 R)
• M13: 14,362,144 km (0.112 R)
• M14: 16,644,409 km (0.117 R)
• M15: 17,037,552 km (0.069 R)
• M16: 17,959,374 km (0.071 R)
• M17: 18,914,108 km (0.113 R)
• M18: 19,404,041 km (0.118 R)
• M19: 21,120,227 km (0.036 R)
• M20: 21,581,138 km (0.088 R)
• M21: 23,212,653 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.3

Radius: 10.9

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.75 AU - 6.87 AU

Year: 9187 Days

Day: 6.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 78,236,810 km

• M1: 135,536 km (0.081 R)
• M2: 567,724 km (0.099 R)
• M3: 916,437 km (0.11 R)
• M4: 2,105,889 km (0.073 R)
• M5: 2,616,916 km (0.098 R)
• M6: 3,229,968 km (0.115 R)
• M7: 3,936,518 km (0.105 R)
• M8: 5,417,836 km (0.117 R)
• M9: 6,251,994 km (0.048 R)
• M10: 6,888,832 km (0.105 R)
• M11: 8,813,559 km (0.045 R)
• M12: 10,235,786 km (0.047 R)
• M13: 12,465,691 km (0.099 R)
• M14: 12,884,266 km (0.059 R)
• M15: 13,749,540 km (0.101 R)
• M16: 14,309,635 km (0.083 R)
• M17: 17,601,685 km (0.102 R)
• M18: 20,998,156 km (0.049 R)
• M19: 24,076,730 km (0.09 R)
• M20: 25,055,998 km (0.068 R)
• M21: 25,723,503 km (0.062 R)
• M22: 26,660,585 km (0.088 R)
• M23: 30,354,754 km (0.102 R)
• M24: 32,372,979 km (0.115 R)
• M25: 32,866,353 km (0.08 R)
• M26: 33,666,253 km (0.1 R)

Asteroid Belt

Center: 6.75 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 78.8

Radius: 5.1

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 7.68 AU - 7.68 AU

Year: 13962 Days

Day: 17.8 Hours

Environment

Temp: -216 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,236,810 km

• M1: 63,579 km (0.082 R)
• M2: 232,924 km (0.097 R)
• M3: 485,595 km (0.106 R)
• M4: 1,079,498 km (0.032 R)
• M5: 1,476,381 km (0.081 R)
• M6: 1,881,642 km (0.107 R)
• M7: 4,268,177 km (0.052 R)
• M8: 9,362,433 km (0.109 R)
• M9: 10,684,878 km (0.106 R)
• M10: 19,066,548 km (0.104 R)
• M11: 22,469,899 km (0.101 R)
• M12: 27,162,186 km (0.063 R)
• M13: 28,087,898 km (0.048 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 866.7

Radius: 3.5

Gravity: 70.75 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 8.74 AU - 9.58 AU

Year: 18187 Days

Day: 19.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 78,236,810 km

• M1: 43,683 km (0.12 R)
• M2: 183,706 km (0.063 R)
• M3: 298,897 km (0.034 R)
• M4: 589,864 km (0.051 R)
• M5: 821,592 km (0.087 R)
• M6: 1,020,108 km (0.097 R)
• M7: 1,597,107 km (0.097 R)
• M8: 1,965,566 km (0.081 R)
• M9: 3,585,711 km (0.083 R)
• M10: 3,828,509 km (0.037 R)
• M11: 7,363,506 km (0.064 R)
• M12: 7,906,098 km (0.091 R)
• M13: 9,693,493 km (0.083 R)
• M14: 9,868,224 km (0.066 R)
• M15: 12,335,242 km (0.052 R)
• M16: 14,340,452 km (0.109 R)
• M17: 15,262,573 km (0.117 R)
• M18: 26,864,935 km (0.104 R)
• M19: 27,674,260 km (0.091 R)
• M20: 28,380,661 km (0.093 R)
• M21: 30,947,760 km (0.101 R)
• M22: 34,877,397 km (0.116 R)
• M23: 35,287,744 km (0.052 R)
• M24: 41,070,749 km (0.107 R)
• M25: 46,622,176 km (0.092 R)
• M26: 53,012,549 km (0.08 R)
• M27: 58,219,153 km (0.056 R)
• M28: 60,945,574 km (0.117 R)
• M29: 61,939,652 km (0.06 R)
• M30: 74,497,346 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 540.4

Radius: 3

Gravity: 60.04 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 9.07 AU - 12.65 AU

Year: 23478 Days

Day: 15.5 Hours

Environment

Temp: -236 °C

Axial Tilt: 10.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 78,236,810 km

• M1: 37,399 km (0.106 R)
• M2: 205,248 km (0.108 R)
• M3: 363,672 km (0.056 R)
• M4: 1,333,964 km (0.102 R)
• M5: 1,735,634 km (0.087 R)
• M6: 2,127,581 km (0.107 R)
• M7: 2,528,354 km (0.117 R)
• M8: 3,003,626 km (0.102 R)
• M9: 3,418,910 km (0.06 R)
• M10: 3,808,762 km (0.101 R)
• M11: 4,465,197 km (0.052 R)
• M12: 4,783,841 km (0.085 R)
• M13: 5,193,739 km (0.114 R)
• M14: 5,506,099 km (0.108 R)
• M15: 6,608,187 km (0.098 R)
• M16: 6,744,171 km (0.03 R)
• M17: 7,068,649 km (0.109 R)
• M18: 9,293,917 km (0.095 R)
• M19: 10,843,602 km (0.086 R)
• M20: 12,011,961 km (0.103 R)
• M21: 13,190,194 km (0.042 R)
• M22: 17,526,587 km (0.105 R)
• M23: 18,764,809 km (0.114 R)
• M24: 19,497,838 km (0.105 R)
• M25: 20,633,137 km (0.104 R)
• M26: 21,811,519 km (0.096 R)
• M27: 22,214,237 km (0.069 R)
• M28: 28,501,536 km (0.075 R)
• M29: 28,621,214 km (0.039 R)
• M30: 28,982,493 km (0.097 R)
• M31: 33,292,408 km (0.085 R)
• M32: 35,738,034 km (0.089 R)
• M33: 38,300,645 km (0.096 R)
• M34: 39,181,328 km (0.037 R)
• M35: 40,376,465 km (0.058 R)
• M36: 42,214,425 km (0.103 R)
• M37: 46,718,368 km (0.103 R)
• M38: 48,401,344 km (0.116 R)
• M39: 52,066,492 km (0.036 R)
• M40: 58,192,525 km (0.098 R)
• M41: 63,548,278 km (0.117 R)
• M42: 65,612,429 km (0.105 R)
• M43: 77,535,080 km (0.039 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 384 - 20,327 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit