🌌 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: 518.7

Radius: 8.5

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.63 AU - 0.95 AU

Year: 453 Days

Day: 9.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,348,538 km

• M1: 105,915 km (0.114 R)
• M2: 388,506 km (0.112 R)
• M3: 667,805 km (0.095 R)
• M4: 1,007,392 km (0.077 R)
• M5: 1,500,915 km (0.12 R)
• M6: 1,781,561 km (0.111 R)
• M7: 2,122,794 km (0.092 R)
• M8: 2,469,562 km (0.108 R)
• M9: 3,066,457 km (0.083 R)
• M10: 4,362,872 km (0.111 R)
• M11: 5,017,812 km (0.072 R)
• M12: 5,345,132 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 443.6

Radius: 8.5

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.79 AU - 1.05 AU

Year: 570 Days

Day: 9.4 Hours

Environment

Temp: -152 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,348,538 km

• M1: 105,766 km (0.105 R)
• M2: 429,047 km (0.097 R)
• M3: 696,976 km (0.065 R)
• M4: 1,171,202 km (0.065 R)
• M5: 1,502,561 km (0.041 R)
• M6: 2,011,643 km (0.11 R)
• M7: 2,641,450 km (0.112 R)
• M8: 3,253,754 km (0.04 R)
• M9: 4,093,297 km (0.072 R)
• M10: 4,866,419 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.8

Radius: 11.2

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.91 AU - 0.97 AU

Year: 588 Days

Day: 7.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,348,538 km

• M1: 139,575 km (0.028 R)
• M2: 540,796 km (0.103 R)
• M3: 989,590 km (0.096 R)
• M4: 1,350,869 km (0.11 R)
• M5: 1,947,914 km (0.105 R)
• M6: 2,435,304 km (0.109 R)
• M7: 3,495,653 km (0.061 R)
• M8: 4,563,333 km (0.055 R)
• M9: 5,181,771 km (0.111 R)
• M10: 5,557,112 km (0.07 R)
• M11: 6,606,840 km (0.069 R)
• M12: 6,984,725 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 553.7

Radius: 13.4

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 1.12 AU - 1.28 AU

Year: 849 Days

Day: 11.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,348,538 km

• M1: 166,652 km (0.093 R)
• M2: 594,951 km (0.026 R)
• M3: 1,078,750 km (0.113 R)
• M4: 1,505,703 km (0.109 R)
• M5: 2,105,141 km (0.077 R)
• M6: 3,310,002 km (0.114 R)
• M7: 3,864,412 km (0.089 R)
• M8: 4,795,509 km (0.095 R)
• M9: 5,452,394 km (0.096 R)
• M10: 6,189,014 km (0.051 R)
• M11: 6,666,380 km (0.11 R)
• M12: 7,742,737 km (0.11 R)
• M13: 8,397,228 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550

Radius: 13.1

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 2.7 AU - 2.74 AU

Year: 2896 Days

Day: 13.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,348,538 km

• M1: 163,211 km (0.086 R)
• M2: 587,471 km (0.068 R)
• M3: 1,327,831 km (0.084 R)
• M4: 1,821,653 km (0.07 R)
• M5: 2,452,208 km (0.108 R)
• M6: 2,961,439 km (0.117 R)
• M7: 5,280,506 km (0.109 R)
• M8: 6,461,282 km (0.054 R)
• M9: 6,882,250 km (0.095 R)
• M10: 7,810,954 km (0.112 R)
• M11: 8,224,592 km (0.096 R)
• M12: 10,904,638 km (0.104 R)
• M13: 11,422,396 km (0.098 R)
• M14: 11,873,284 km (0.106 R)
• M15: 12,464,345 km (0.116 R)
• M16: 14,308,887 km (0.068 R)
• M17: 15,719,295 km (0.111 R)
• M18: 16,588,160 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.2

Radius: 14.2

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.58 AU - 3.54 AU

Year: 3456 Days

Day: 5.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,348,538 km

• M1: 177,423 km (0.112 R)
• M2: 697,575 km (0.107 R)
• M3: 1,296,116 km (0.068 R)
• M4: 1,883,736 km (0.087 R)
• M5: 2,458,043 km (0.088 R)
• M6: 3,148,437 km (0.119 R)
• M7: 4,009,223 km (0.09 R)
• M8: 4,996,419 km (0.067 R)
• M9: 5,439,827 km (0.063 R)
• M10: 5,966,711 km (0.069 R)
• M11: 6,558,221 km (0.098 R)
• M12: 7,485,279 km (0.05 R)
• M13: 9,759,466 km (0.11 R)
• M14: 13,732,486 km (0.088 R)
• M15: 17,342,732 km (0.059 R)
• M16: 19,493,949 km (0.065 R)
• M17: 19,944,538 km (0.097 R)
• M18: 20,468,280 km (0.117 R)
• M19: 25,145,308 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.7

Radius: 3.9

Gravity: 52.31 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 5.61 AU - 7.41 AU

Year: 10725 Days

Day: 18 Hours

Environment

Temp: -220 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 29,348,538 km

• M1: 51,162 km (0.099 R)
• M2: 346,020 km (0.03 R)
• M3: 483,201 km (0.096 R)
• M4: 617,839 km (0.097 R)
• M5: 750,682 km (0.11 R)
• M6: 912,846 km (0.112 R)
• M7: 1,744,610 km (0.119 R)
• M8: 2,085,245 km (0.112 R)
• M9: 2,368,583 km (0.115 R)
• M10: 4,183,804 km (0.064 R)
• M11: 4,330,410 km (0.054 R)
• M12: 5,420,380 km (0.084 R)
• M13: 6,760,926 km (0.12 R)
• M14: 9,114,250 km (0.097 R)
• M15: 12,619,029 km (0.088 R)
• M16: 12,925,555 km (0.116 R)
• M17: 13,111,954 km (0.111 R)
• M18: 13,237,168 km (0.085 R)
• M19: 14,201,775 km (0.093 R)
• M20: 16,633,039 km (0.103 R)
• M21: 17,300,395 km (0.053 R)
• M22: 18,373,461 km (0.095 R)
• M23: 18,688,065 km (0.079 R)
• M24: 27,768,806 km (0.061 R)
• M25: 28,812,251 km (0.057 R)
• M26: 30,535,469 km (0.115 R)
• M27: 31,198,935 km (0.09 R)
• M28: 32,784,523 km (0.061 R)
• M29: 33,714,274 km (0.095 R)
• M30: 40,719,643 km (0.081 R)
• M31: 40,852,785 km (0.028 R)
• M32: 41,523,283 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 80.4

Radius: 4.4

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.02 AU - 9.52 AU

Year: 13984 Days

Day: 23.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 29,348,538 km

• M1: 56,698 km (0.037 R)
• M2: 258,804 km (0.062 R)
• M3: 444,754 km (0.057 R)
• M4: 1,752,539 km (0.104 R)
• M5: 2,133,415 km (0.107 R)
• M6: 3,438,208 km (0.108 R)
• M7: 3,827,462 km (0.07 R)
• M8: 6,477,588 km (0.055 R)
• M9: 11,497,344 km (0.113 R)
• M10: 12,561,883 km (0.046 R)
• M11: 15,279,328 km (0.11 R)
• M12: 17,918,085 km (0.09 R)
• M13: 18,172,102 km (0.07 R)
• M14: 18,817,467 km (0.101 R)
• M15: 23,617,465 km (0.053 R)
• M16: 27,457,343 km (0.034 R)
• M17: 27,794,985 km (0.093 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 18,301 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit