🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270.3

Radius: 13

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.49 AU - 0.73 AU

Year: 318 Days

Day: 8.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 59,713,481 km

• M1: 161,715 km (0.057 R)
• M2: 613,351 km (0.074 R)
• M3: 1,422,975 km (0.11 R)
• M4: 1,897,499 km (0.049 R)
• M5: 2,739,436 km (0.066 R)
• M6: 3,358,023 km (0.067 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.2

Radius: 14.6

Gravity: 2.37 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 1.07 AU - 1.43 AU

Year: 932 Days

Day: 10.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,713,481 km

• M1: 181,612 km (0.094 R)
• M2: 764,744 km (0.113 R)
• M3: 1,264,401 km (0.084 R)
• M4: 1,736,682 km (0.098 R)
• M5: 2,455,350 km (0.087 R)
• M6: 3,300,578 km (0.117 R)
• M7: 4,285,381 km (0.096 R)
• M8: 6,471,155 km (0.113 R)
• M9: 7,145,991 km (0.109 R)
• M10: 8,209,183 km (0.088 R)
• M11: 8,740,256 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.8

Radius: 10.6

Gravity: 3.88 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.5 AU - 1.52 AU

Year: 1237 Days

Day: 5.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 59,713,481 km

• M1: 131,796 km (0.055 R)
• M2: 768,933 km (0.103 R)
• M3: 1,147,864 km (0.106 R)
• M4: 1,619,247 km (0.116 R)
• M5: 1,954,347 km (0.044 R)
• M6: 2,743,625 km (0.114 R)
• M7: 3,157,413 km (0.106 R)
• M8: 3,672,628 km (0.09 R)
• M9: 4,567,672 km (0.112 R)
• M10: 5,286,190 km (0.094 R)
• M11: 6,035,975 km (0.098 R)
• M12: 6,536,679 km (0.078 R)
• M13: 7,279,582 km (0.067 R)
• M14: 7,621,712 km (0.079 R)
• M15: 8,713,777 km (0.081 R)
• M16: 9,240,660 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.5

Radius: 13.8

Gravity: 4.16 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.25 AU - 1.99 AU

Year: 1375 Days

Day: 11.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,713,481 km

• M1: 172,337 km (0.034 R)
• M2: 852,857 km (0.114 R)
• M3: 1,747,602 km (0.07 R)
• M4: 2,609,436 km (0.049 R)
• M5: 4,462,504 km (0.111 R)
• M6: 5,404,821 km (0.064 R)
• M7: 6,379,452 km (0.099 R)
• M8: 7,711,022 km (0.12 R)
• M9: 9,037,058 km (0.088 R)
• M10: 10,144,082 km (0.118 R)
• M11: 12,779,996 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 887.5

Radius: 8.7

Gravity: 11.73 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.17 AU - 2.97 AU

Year: 2747 Days

Day: 11.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,713,481 km

• M1: 108,159 km (0.076 R)
• M2: 580,290 km (0.097 R)
• M3: 883,675 km (0.07 R)
• M4: 1,257,819 km (0.096 R)
• M5: 1,942,229 km (0.094 R)
• M6: 4,418,224 km (0.101 R)
• M7: 5,120,885 km (0.035 R)
• M8: 6,397,553 km (0.067 R)
• M9: 7,140,755 km (0.066 R)
• M10: 9,049,474 km (0.083 R)
• M11: 9,490,938 km (0.062 R)
• M12: 10,140,940 km (0.113 R)
• M13: 10,496,834 km (0.111 R)
• M14: 11,529,508 km (0.119 R)
• M15: 12,004,631 km (0.104 R)
• M16: 12,948,145 km (0.118 R)
• M17: 15,289,351 km (0.102 R)
• M18: 16,182,002 km (0.076 R)
• M19: 17,164,860 km (0.093 R)
• M20: 17,898,936 km (0.036 R)
• M21: 19,979,394 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.4

Radius: 8.9

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 3.22 AU - 4.76 AU

Year: 5315 Days

Day: 6.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,713,481 km

• M1: 110,702 km (0.12 R)
• M2: 451,187 km (0.112 R)
• M3: 1,025,344 km (0.09 R)
• M4: 1,542,653 km (0.118 R)
• M5: 2,834,880 km (0.061 R)
• M6: 3,732,616 km (0.111 R)
• M7: 4,639,778 km (0.111 R)
• M8: 5,659,886 km (0.118 R)
• M9: 7,073,137 km (0.072 R)
• M10: 7,394,922 km (0.076 R)
• M11: 7,895,925 km (0.118 R)
• M12: 9,770,536 km (0.095 R)
• M13: 10,049,087 km (0.114 R)
• M14: 11,522,926 km (0.101 R)
• M15: 12,334,494 km (0.069 R)
• M16: 14,998,383 km (0.08 R)
• M17: 17,493,526 km (0.067 R)
• M18: 20,124,354 km (0.113 R)
• M19: 22,177,136 km (0.119 R)
• M20: 22,590,026 km (0.119 R)
• M21: 23,289,546 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.6

Radius: 8.2

Gravity: 10.18 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 3.78 AU - 4.26 AU

Year: 5375 Days

Day: 8.5 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 59,713,481 km

• M1: 102,175 km (0.11 R)
• M2: 481,256 km (0.043 R)
• M3: 1,247,197 km (0.036 R)
• M4: 2,184,279 km (0.12 R)
• M5: 2,737,342 km (0.071 R)
• M6: 3,594,388 km (0.104 R)
• M7: 4,193,079 km (0.1 R)
• M8: 5,858,253 km (0.072 R)
• M9: 6,424,032 km (0.034 R)
• M10: 7,701,149 km (0.034 R)
• M11: 8,073,647 km (0.054 R)
• M12: 8,734,272 km (0.078 R)
• M13: 9,139,532 km (0.069 R)
• M14: 11,309,150 km (0.089 R)
• M15: 11,693,318 km (0.074 R)
• M16: 12,898,478 km (0.098 R)
• M17: 13,371,058 km (0.08 R)
• M18: 13,964,213 km (0.1 R)
• M19: 14,687,818 km (0.051 R)
• M20: 15,671,574 km (0.109 R)
• M21: 17,008,829 km (0.096 R)
• M22: 18,093,114 km (0.071 R)
• M23: 18,486,557 km (0.117 R)
• M24: 20,398,717 km (0.08 R)
• M25: 20,968,386 km (0.081 R)
• M26: 23,977,248 km (0.083 R)
• M27: 27,262,417 km (0.12 R)
• M28: 30,650,061 km (0.117 R)
• M29: 31,397,302 km (0.088 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 550.7

Radius: 4.9

Gravity: 22.94 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 4.89 AU - 7.87 AU

Year: 10746 Days

Day: 19.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 59,713,481 km

• M1: 60,886 km (0.059 R)
• M2: 231,428 km (0.065 R)
• M3: 386,262 km (0.096 R)
• M4: 674,836 km (0.115 R)
• M5: 990,338 km (0.111 R)
• M6: 1,223,561 km (0.084 R)
• M7: 1,385,875 km (0.101 R)
• M8: 2,407,329 km (0.062 R)
• M9: 2,563,210 km (0.078 R)
• M10: 4,288,223 km (0.062 R)
• M11: 4,459,961 km (0.095 R)
• M12: 4,666,107 km (0.065 R)
• M13: 5,002,852 km (0.074 R)
• M14: 5,388,665 km (0.079 R)
• M15: 6,741,628 km (0.11 R)
• M16: 7,662,403 km (0.053 R)
• M17: 12,360,524 km (0.097 R)
• M18: 13,004,692 km (0.086 R)
• M19: 14,106,481 km (0.086 R)
• M20: 15,536,038 km (0.063 R)
• M21: 20,642,113 km (0.108 R)
• M22: 22,479,174 km (0.076 R)
• M23: 30,601,292 km (0.087 R)
• M24: 31,885,589 km (0.118 R)
• M25: 32,212,162 km (0.03 R)
• M26: 32,431,173 km (0.032 R)
• M27: 34,446,705 km (0.056 R)
• M28: 34,675,739 km (0.098 R)
• M29: 35,021,011 km (0.074 R)
• M30: 36,071,039 km (0.093 R)
• M31: 37,382,414 km (0.116 R)
• M32: 38,849,071 km (0.057 R)
• M33: 39,221,719 km (0.037 R)
• M34: 44,826,703 km (0.112 R)

Asteroid Belt

Center: 6.71 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.2

Radius: 3.9

Gravity: 56.36 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 5.55 AU - 8.51 AU

Year: 12430 Days

Day: 15.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 59,713,481 km

• M1: 48,470 km (0.099 R)
• M2: 292,913 km (0.095 R)
• M3: 577,747 km (0.105 R)
• M4: 783,893 km (0.099 R)
• M5: 1,133,952 km (0.099 R)
• M6: 1,429,707 km (0.063 R)
• M7: 2,096,614 km (0.1 R)
• M8: 2,456,247 km (0.098 R)
• M9: 2,584,752 km (0.088 R)
• M10: 3,144,846 km (0.09 R)
• M11: 4,628,708 km (0.114 R)
• M12: 5,521,807 km (0.081 R)
• M13: 6,813,285 km (0.101 R)
• M14: 7,506,672 km (0.068 R)
• M15: 8,437,918 km (0.117 R)
• M16: 9,443,515 km (0.09 R)
• M17: 9,706,957 km (0.113 R)
• M18: 10,303,703 km (0.084 R)
• M19: 11,040,024 km (0.091 R)
• M20: 11,450,670 km (0.055 R)
• M21: 12,680,065 km (0.101 R)
• M22: 13,994,881 km (0.115 R)
• M23: 14,475,688 km (0.059 R)
• M24: 15,397,810 km (0.118 R)
• M25: 17,280,050 km (0.083 R)
• M26: 19,226,019 km (0.041 R)
• M27: 20,601,422 km (0.03 R)
• M28: 26,033,769 km (0.076 R)
• M29: 28,800,432 km (0.096 R)
• M30: 30,826,586 km (0.112 R)
• M31: 34,784,497 km (0.081 R)
• M32: 36,175,458 km (0.116 R)
• M33: 37,471,723 km (0.101 R)
• M34: 38,798,657 km (0.068 R)
• M35: 41,827,565 km (0.031 R)
• M36: 44,419,946 km (0.105 R)
• M37: 45,158,660 km (0.067 R)
• M38: 46,206,594 km (0.051 R)
• M39: 55,861,640 km (0.077 R)
• M40: 57,068,596 km (0.091 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 517 - 17,142 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit