🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.8

Radius: 13.9

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.77 AU - 0.95 AU

Year: 551 Days

Day: 10.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 61,309,335 km

• M1: 172,935 km (0.099 R)
• M2: 648,956 km (0.073 R)
• M3: 1,147,416 km (0.11 R)
• M4: 1,586,037 km (0.059 R)
• M5: 2,097,362 km (0.108 R)
• M6: 2,698,746 km (0.074 R)
• M7: 3,192,568 km (0.081 R)
• M8: 3,721,546 km (0.099 R)
• M9: 4,211,479 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.8

Radius: 14.6

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.39 AU - 2.01 AU

Year: 1530 Days

Day: 10.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,309,335 km

• M1: 188,493 km (0.068 R)
• M2: 689,048 km (0.051 R)
• M3: 1,643,931 km (0.07 R)
• M4: 3,460,797 km (0.07 R)
• M5: 3,979,303 km (0.091 R)
• M6: 5,022,599 km (0.094 R)
• M7: 6,665,932 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.6

Radius: 14

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 2.56 AU - 3.92 AU

Year: 4026 Days

Day: 6.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,309,335 km

• M1: 177,872 km (0.067 R)
• M2: 615,894 km (0.067 R)
• M3: 1,114,355 km (0.11 R)
• M4: 1,718,580 km (0.11 R)
• M5: 2,428,572 km (0.067 R)
• M6: 2,976,250 km (0.113 R)
• M7: 3,964,344 km (0.113 R)
• M8: 4,583,380 km (0.069 R)
• M9: 5,346,478 km (0.1 R)
• M10: 6,075,020 km (0.065 R)
• M11: 9,197,127 km (0.099 R)
• M12: 9,873,609 km (0.1 R)
• M13: 10,798,124 km (0.038 R)
• M14: 11,371,084 km (0.103 R)
• M15: 12,966,096 km (0.095 R)
• M16: 13,817,607 km (0.074 R)
• M17: 14,652,663 km (0.104 R)
• M18: 15,687,730 km (0.078 R)
• M19: 16,771,118 km (0.111 R)
• M20: 17,903,724 km (0.115 R)
• M21: 20,056,886 km (0.101 R)
• M22: 21,127,857 km (0.075 R)
• M23: 22,095,755 km (0.047 R)
• M24: 22,805,148 km (0.058 R)
• M25: 24,194,912 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.5

Radius: 12.5

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 3.3 AU - 3.86 AU

Year: 4676 Days

Day: 8.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 46.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,309,335 km

• M1: 157,078 km (0.095 R)
• M2: 609,462 km (0.118 R)
• M3: 2,026,602 km (0.095 R)
• M4: 2,704,730 km (0.074 R)
• M5: 3,303,869 km (0.111 R)
• M6: 4,441,262 km (0.083 R)
• M7: 5,141,380 km (0.082 R)
• M8: 5,913,753 km (0.082 R)
• M9: 7,096,175 km (0.065 R)
• M10: 7,582,667 km (0.103 R)
• M11: 12,464,943 km (0.115 R)
• M12: 13,487,295 km (0.06 R)
• M13: 14,290,187 km (0.089 R)
• M14: 16,168,837 km (0.063 R)
• M15: 19,928,980 km (0.052 R)
• M16: 20,619,523 km (0.047 R)
• M17: 21,613,003 km (0.037 R)
• M18: 25,342,627 km (0.105 R)
• M19: 26,317,407 km (0.077 R)
• M20: 30,106,871 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.2

Radius: 12.5

Gravity: 3.37 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 4.72 AU - 5.34 AU

Year: 7787 Days

Day: 8 Hours

Environment

Temp: -233 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,309,335 km

• M1: 155,881 km (0.116 R)
• M2: 605,871 km (0.082 R)
• M3: 1,058,405 km (0.04 R)
• M4: 2,000,572 km (0.12 R)
• M5: 2,725,972 km (0.096 R)
• M6: 4,173,781 km (0.11 R)
• M7: 5,856,757 km (0.101 R)
• M8: 6,416,701 km (0.098 R)
• M9: 7,993,762 km (0.081 R)
• M10: 9,815,715 km (0.097 R)
• M11: 11,592,788 km (0.101 R)
• M12: 14,796,576 km (0.04 R)
• M13: 15,219,339 km (0.079 R)
• M14: 16,731,026 km (0.063 R)
• M15: 19,325,801 km (0.101 R)
• M16: 28,518,141 km (0.113 R)
• M17: 33,220,002 km (0.045 R)
• M18: 37,068,557 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.5

Radius: 11.5

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.31 AU - 5.81 AU

Year: 7857 Days

Day: 11.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 61,309,335 km

• M1: 143,913 km (0.099 R)
• M2: 514,617 km (0.109 R)
• M3: 1,136,645 km (0.071 R)
• M4: 2,855,075 km (0.076 R)
• M5: 3,666,045 km (0.08 R)
• M6: 4,908,007 km (0.115 R)
• M7: 8,129,298 km (0.089 R)
• M8: 13,519,758 km (0.099 R)
• M9: 14,650,419 km (0.097 R)
• M10: 15,668,731 km (0.091 R)
• M11: 16,794,306 km (0.1 R)
• M12: 17,972,838 km (0.064 R)
• M13: 23,167,773 km (0.113 R)
• M14: 23,545,957 km (0.067 R)
• M15: 25,499,555 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 145.1

Radius: 7.4

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.41 AU - 6.93 AU

Year: 9319 Days

Day: 17 Hours

Environment

Temp: -236 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 61,309,335 km

• M1: 92,751 km (0.099 R)
• M2: 414,087 km (0.085 R)
• M3: 694,882 km (0.079 R)
• M4: 1,413,251 km (0.105 R)
• M5: 1,870,273 km (0.116 R)
• M6: 2,163,036 km (0.085 R)
• M7: 3,022,326 km (0.1 R)
• M8: 3,488,174 km (0.085 R)
• M9: 4,275,806 km (0.11 R)
• M10: 5,070,769 km (0.115 R)
• M11: 5,311,323 km (0.087 R)
• M12: 6,411,914 km (0.029 R)
• M13: 6,661,743 km (0.094 R)
• M14: 7,348,696 km (0.119 R)
• M15: 8,190,633 km (0.104 R)
• M16: 10,148,720 km (0.071 R)
• M17: 10,924,235 km (0.071 R)
• M18: 12,303,527 km (0.11 R)
• M19: 13,386,167 km (0.116 R)
• M20: 15,182,239 km (0.102 R)
• M21: 16,368,700 km (0.075 R)
• M22: 17,983,160 km (0.03 R)
• M23: 18,670,413 km (0.118 R)
• M24: 19,701,142 km (0.079 R)
• M25: 21,735,224 km (0.058 R)
• M26: 22,586,586 km (0.096 R)
• M27: 23,386,486 km (0.083 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 925.6

Radius: 3.2

Gravity: 90.39 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 6.17 AU - 6.17 AU

Year: 10579 Days

Day: 18.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 61,309,335 km

• M1: 48,470 km (0.106 R)
• M2: 244,593 km (0.037 R)
• M3: 387,907 km (0.039 R)
• M4: 506,538 km (0.084 R)
• M5: 848,370 km (0.047 R)
• M6: 1,121,984 km (0.079 R)
• M7: 1,272,779 km (0.098 R)
• M8: 1,524,253 km (0.049 R)
• M9: 2,088,237 km (0.082 R)
• M10: 2,277,777 km (0.093 R)
• M11: 2,417,202 km (0.09 R)
• M12: 2,541,219 km (0.08 R)
• M13: 2,691,266 km (0.071 R)
• M14: 3,664,998 km (0.086 R)
• M15: 3,884,608 km (0.1 R)
• M16: 4,142,215 km (0.079 R)
• M17: 5,184,464 km (0.11 R)
• M18: 7,462,091 km (0.111 R)
• M19: 8,224,741 km (0.11 R)
• M20: 9,694,840 km (0.116 R)
• M21: 11,273,845 km (0.104 R)
• M22: 11,855,781 km (0.094 R)
• M23: 12,828,167 km (0.095 R)
• M24: 12,953,380 km (0.114 R)
• M25: 14,384,583 km (0.1 R)
• M26: 19,059,367 km (0.1 R)
• M27: 20,304,769 km (0.095 R)
• M28: 22,681,431 km (0.114 R)
• M29: 25,335,147 km (0.113 R)
• M30: 27,043,256 km (0.107 R)
• M31: 27,873,075 km (0.083 R)
• M32: 29,257,454 km (0.034 R)
• M33: 31,023,307 km (0.104 R)
• M34: 32,625,500 km (0.094 R)
• M35: 37,761,794 km (0.072 R)
• M36: 43,411,357 km (0.113 R)
• M37: 45,267,867 km (0.094 R)
• M38: 45,849,653 km (0.103 R)
• M39: 51,943,223 km (0.11 R)
• M40: 52,741,029 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 936

Radius: 7.5

Gravity: 16.64 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 6.12 AU - 7.58 AU

Year: 12375 Days

Day: 20.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,309,335 km

• M1: 110,852 km (0.092 R)
• M2: 628,461 km (0.098 R)
• M3: 908,209 km (0.109 R)
• M4: 2,740,483 km (0.087 R)
• M5: 4,759,456 km (0.104 R)
• M6: 8,503,592 km (0.116 R)
• M7: 11,134,270 km (0.073 R)
• M8: 12,223,492 km (0.065 R)
• M9: 13,448,549 km (0.115 R)
• M10: 13,919,932 km (0.077 R)
• M11: 14,332,673 km (0.079 R)
• M12: 15,990,666 km (0.079 R)
• M13: 18,422,529 km (0.089 R)
• M14: 21,910,703 km (0.052 R)
• M15: 24,400,011 km (0.093 R)
• M16: 36,376,218 km (0.029 R)
• M17: 42,813,714 km (0.043 R)
• M18: 43,686,617 km (0.116 R)
• M19: 48,857,917 km (0.119 R)
• M20: 59,851,864 km (0.042 R)
• M21: 60,942,732 km (0.107 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 326 - 19,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit