🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 860.1

Radius: 14.8

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.53 AU - 0.67 AU

Year: 310 Days

Day: 12.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 10.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 54,787,556 km

• M1: 185,352 km (0.09 R)
• M2: 656,585 km (0.069 R)
• M3: 1,138,739 km (0.098 R)
• M4: 1,676,543 km (0.117 R)
• M5: 2,193,254 km (0.068 R)
• M6: 3,078,275 km (0.118 R)
• M7: 3,902,410 km (0.115 R)
• M8: 4,387,406 km (0.102 R)
• M9: 5,102,185 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.1

Radius: 13.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.11 AU - 1.13 AU

Year: 790 Days

Day: 6.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 54,787,556 km

• M1: 169,195 km (0.096 R)
• M2: 653,144 km (0.113 R)
• M3: 1,078,451 km (0.098 R)
• M4: 2,003,714 km (0.093 R)
• M5: 2,622,451 km (0.083 R)
• M6: 3,151,878 km (0.102 R)
• M7: 4,151,790 km (0.066 R)
• M8: 4,596,993 km (0.094 R)
• M9: 5,184,613 km (0.063 R)
• M10: 5,682,625 km (0.045 R)
• M11: 6,360,901 km (0.038 R)
• M12: 7,586,856 km (0.079 R)
• M13: 8,618,782 km (0.073 R)
• M14: 9,155,090 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488.7

Radius: 12.5

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.07 AU - 3.11 AU

Year: 2780 Days

Day: 6.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,787,556 km

• M1: 155,731 km (0.097 R)
• M2: 569,818 km (0.077 R)
• M3: 1,287,140 km (0.094 R)
• M4: 1,781,711 km (0.107 R)
• M5: 2,669,275 km (0.116 R)
• M6: 3,164,593 km (0.115 R)
• M7: 3,757,899 km (0.092 R)
• M8: 5,031,276 km (0.047 R)
• M9: 5,474,384 km (0.111 R)
• M10: 6,253,341 km (0.099 R)
• M11: 8,001,392 km (0.096 R)
• M12: 9,174,688 km (0.116 R)
• M13: 10,875,316 km (0.107 R)
• M14: 12,106,507 km (0.046 R)
• M15: 13,296,558 km (0.09 R)
• M16: 14,010,738 km (0.092 R)
• M17: 14,516,529 km (0.115 R)
• M18: 16,107,203 km (0.086 R)
• M19: 16,662,510 km (0.069 R)
• M20: 17,126,263 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 95.6

Radius: 11.1

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.39 AU - 3.81 AU

Year: 3640 Days

Day: 12.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,787,556 km

• M1: 140,921 km (0.1 R)
• M2: 605,123 km (0.059 R)
• M3: 1,374,356 km (0.106 R)
• M4: 1,801,009 km (0.098 R)
• M5: 2,269,699 km (0.082 R)
• M6: 2,832,486 km (0.082 R)
• M7: 3,228,172 km (0.081 R)
• M8: 5,014,969 km (0.099 R)
• M9: 5,996,331 km (0.111 R)
• M10: 7,177,556 km (0.091 R)
• M11: 8,308,367 km (0.086 R)
• M12: 9,125,769 km (0.103 R)
• M13: 10,484,417 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 126.7

Radius: 11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 3.36 AU - 3.46 AU

Year: 4199 Days

Day: 10.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,787,556 km

• M1: 194,477 km (0.068 R)
• M2: 1,955,394 km (0.082 R)
• M3: 2,553,336 km (0.108 R)
• M4: 3,052,395 km (0.111 R)
• M5: 3,736,656 km (0.079 R)
• M6: 6,617,013 km (0.069 R)
• M7: 8,628,356 km (0.119 R)
• M8: 9,132,651 km (0.111 R)
• M9: 9,790,732 km (0.048 R)
• M10: 12,864,220 km (0.113 R)
• M11: 14,641,742 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 158.2

Radius: 14.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 3.56 AU - 3.58 AU

Year: 4498 Days

Day: 6.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 54,787,556 km

• M1: 185,501 km (0.109 R)
• M2: 868,565 km (0.093 R)
• M3: 1,650,065 km (0.062 R)
• M4: 3,120,911 km (0.08 R)
• M5: 4,295,254 km (0.103 R)
• M6: 5,699,080 km (0.087 R)
• M7: 6,454,550 km (0.111 R)
• M8: 8,321,531 km (0.049 R)
• M9: 8,799,496 km (0.085 R)
• M10: 11,201,141 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472

Radius: 13.8

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.96 AU - 4.34 AU

Year: 5638 Days

Day: 5.8 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 54,787,556 km

• M1: 171,589 km (0.103 R)
• M2: 631,303 km (0.101 R)
• M3: 1,175,839 km (0.1 R)
• M4: 2,107,984 km (0.096 R)
• M5: 2,685,581 km (0.118 R)
• M6: 3,805,022 km (0.099 R)
• M7: 4,399,225 km (0.091 R)
• M8: 6,191,108 km (0.1 R)
• M9: 7,560,377 km (0.071 R)
• M10: 8,809,819 km (0.096 R)
• M11: 9,484,206 km (0.092 R)
• M12: 10,891,623 km (0.106 R)
• M13: 11,669,083 km (0.077 R)
• M14: 12,385,507 km (0.096 R)
• M15: 13,080,389 km (0.115 R)
• M16: 14,171,406 km (0.048 R)
• M17: 17,255,516 km (0.093 R)
• M18: 18,567,489 km (0.089 R)
• M19: 19,810,947 km (0.101 R)
• M20: 26,546,890 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.4

Radius: 13.9

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 4 AU - 5.46 AU

Year: 6860 Days

Day: 9.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 54,787,556 km

• M1: 174,880 km (0.085 R)
• M2: 679,623 km (0.112 R)
• M3: 1,245,253 km (0.069 R)
• M4: 2,658,504 km (0.084 R)
• M5: 3,259,289 km (0.112 R)
• M6: 4,680,469 km (0.043 R)
• M7: 6,243,018 km (0.085 R)
• M8: 7,199,697 km (0.047 R)
• M9: 7,694,267 km (0.098 R)
• M10: 8,499,553 km (0.079 R)
• M11: 9,009,083 km (0.116 R)
• M12: 9,449,350 km (0.083 R)
• M13: 9,904,127 km (0.054 R)
• M14: 11,005,616 km (0.066 R)
• M15: 12,347,509 km (0.11 R)
• M16: 14,086,883 km (0.1 R)
• M17: 14,863,147 km (0.085 R)
• M18: 15,479,340 km (0.08 R)
• M19: 16,829,162 km (0.1 R)
• M20: 21,350,010 km (0.085 R)
• M21: 23,021,168 km (0.068 R)
• M22: 24,182,645 km (0.112 R)
• M23: 25,645,264 km (0.074 R)
• M24: 29,414,382 km (0.111 R)
• M25: 30,386,768 km (0.1 R)
• M26: 31,280,316 km (0.056 R)
• M27: 32,808,159 km (0.117 R)
• M28: 34,385,370 km (0.116 R)
• M29: 35,464,569 km (0.094 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.9

Radius: 9

Gravity: 10.67 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.71 AU - 6.07 AU

Year: 7211 Days

Day: 7.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 54,787,556 km

• M1: 111,899 km (0.089 R)
• M2: 591,360 km (0.095 R)
• M3: 938,577 km (0.115 R)
• M4: 1,255,874 km (0.058 R)
• M5: 1,537,717 km (0.113 R)
• M6: 2,148,225 km (0.053 R)
• M7: 2,481,978 km (0.108 R)
• M8: 3,391,085 km (0.071 R)
• M9: 3,673,974 km (0.086 R)
• M10: 5,303,394 km (0.068 R)
• M11: 5,588,827 km (0.109 R)
• M12: 6,579,314 km (0.097 R)
• M13: 6,984,276 km (0.071 R)
• M14: 12,436,221 km (0.051 R)
• M15: 14,726,863 km (0.079 R)
• M16: 18,057,211 km (0.098 R)
• M17: 18,778,722 km (0.059 R)
• M18: 20,980,204 km (0.076 R)
• M19: 21,939,425 km (0.106 R)
• M20: 23,095,368 km (0.094 R)
• M21: 23,945,383 km (0.1 R)
• M22: 24,904,455 km (0.117 R)
• M23: 25,527,979 km (0.108 R)
• M24: 27,839,865 km (0.108 R)
• M25: 31,100,799 km (0.107 R)
• M26: 32,137,213 km (0.099 R)
• M27: 36,856,876 km (0.082 R)

Planet 10 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.6

Radius: 5.9

Gravity: 24.06 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 5.79 AU - 7.21 AU

Year: 11051 Days

Day: 16.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 54,787,556 km

• M1: 75,697 km (0.094 R)
• M2: 498,161 km (0.03 R)
• M3: 1,580,352 km (0.054 R)
• M4: 2,281,218 km (0.108 R)
• M5: 3,318,978 km (0.119 R)
• M6: 4,608,213 km (0.087 R)
• M7: 10,152,759 km (0.109 R)
• M8: 10,638,653 km (0.083 R)
• M9: 11,139,955 km (0.095 R)
• M10: 13,050,320 km (0.12 R)
• M11: 13,367,318 km (0.077 R)
• M12: 15,875,027 km (0.064 R)
• M13: 20,072,893 km (0.111 R)
• M14: 22,425,170 km (0.07 R)
• M15: 25,345,320 km (0.073 R)
• M16: 26,238,270 km (0.045 R)
• M17: 26,439,628 km (0.119 R)
• M18: 27,565,053 km (0.096 R)
• M19: 28,297,634 km (0.103 R)
• M20: 32,387,041 km (0.077 R)
• M21: 33,202,649 km (0.108 R)
• M22: 33,793,411 km (0.115 R)
• M23: 35,731,451 km (0.077 R)
• M24: 36,102,753 km (0.073 R)
• M25: 46,540,945 km (0.063 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: 464 - 16,944 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit