🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 304.3

Radius: 9.2

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.51 AU - 0.51 AU

Year: 243 Days

Day: 6.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 0.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,141,789 km

• M1: 114,442 km (0.063 R)
• M2: 561,590 km (0.073 R)
• M3: 863,329 km (0.117 R)
• M4: 1,162,375 km (0.065 R)
• M5: 1,473,090 km (0.083 R)
• M6: 1,896,003 km (0.097 R)
• M7: 2,231,402 km (0.112 R)
• M8: 2,826,203 km (0.037 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 941.7

Radius: 11.1

Gravity: 7.64 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.77 AU - 0.83 AU

Year: 477 Days

Day: 7 Hours

Environment

Temp: -161 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 65,141,789 km

• M1: 138,079 km (0.029 R)
• M2: 536,458 km (0.066 R)
• M3: 992,133 km (0.083 R)
• M4: 1,377,796 km (0.059 R)
• M5: 1,808,189 km (0.059 R)
• M6: 2,252,046 km (0.069 R)
• M7: 2,757,388 km (0.085 R)
• M8: 3,239,542 km (0.102 R)
• M9: 3,710,326 km (0.091 R)
• M10: 4,270,570 km (0.083 R)
• M11: 4,886,315 km (0.098 R)
• M12: 5,232,784 km (0.117 R)
• M13: 6,087,287 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 485.6

Radius: 10.2

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.76 AU - 0.88 AU

Year: 495 Days

Day: 8.2 Hours

Environment

Temp: -160 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,141,789 km

• M1: 127,906 km (0.103 R)
• M2: 643,869 km (0.071 R)
• M3: 1,009,486 km (0.071 R)
• M4: 1,829,582 km (0.059 R)
• M5: 2,204,474 km (0.096 R)
• M6: 2,937,504 km (0.099 R)
• M7: 3,420,107 km (0.047 R)
• M8: 3,774,803 km (0.059 R)
• M9: 4,587,718 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.3

Radius: 10

Gravity: 4.36 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 2.46 AU - 3.4 AU

Year: 3344 Days

Day: 9.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,141,789 km

• M1: 124,465 km (0.095 R)
• M2: 475,422 km (0.06 R)
• M3: 1,053,319 km (0.12 R)
• M4: 1,465,461 km (0.081 R)
• M5: 1,852,770 km (0.076 R)
• M6: 3,080,819 km (0.068 R)
• M7: 3,409,635 km (0.104 R)
• M8: 3,917,669 km (0.055 R)
• M9: 4,283,885 km (0.088 R)
• M10: 5,015,119 km (0.047 R)
• M11: 6,305,999 km (0.079 R)
• M12: 6,724,723 km (0.084 R)
• M13: 7,073,137 km (0.103 R)
• M14: 7,525,521 km (0.067 R)
• M15: 8,223,844 km (0.1 R)
• M16: 9,640,087 km (0.12 R)
• M17: 11,579,174 km (0.094 R)
• M18: 13,858,298 km (0.118 R)
• M19: 14,281,062 km (0.089 R)
• M20: 15,004,816 km (0.116 R)
• M21: 15,702,241 km (0.116 R)
• M22: 16,265,178 km (0.109 R)
• M23: 16,947,943 km (0.097 R)
• M24: 18,258,271 km (0.112 R)
• M25: 18,766,604 km (0.081 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.1

Radius: 14.3

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 3.15 AU - 3.99 AU

Year: 4498 Days

Day: 5.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,141,789 km

• M1: 177,872 km (0.091 R)
• M2: 714,629 km (0.111 R)
• M3: 1,171,351 km (0.104 R)
• M4: 1,833,472 km (0.098 R)
• M5: 2,278,675 km (0.119 R)
• M6: 2,753,498 km (0.106 R)
• M7: 3,565,815 km (0.12 R)
• M8: 4,173,332 km (0.116 R)
• M9: 5,621,290 km (0.04 R)
• M10: 6,713,803 km (0.053 R)
• M11: 7,883,209 km (0.118 R)
• M12: 8,692,534 km (0.088 R)
• M13: 9,150,902 km (0.092 R)
• M14: 12,291,111 km (0.09 R)
• M15: 15,086,646 km (0.116 R)
• M16: 15,750,561 km (0.1 R)
• M17: 16,934,180 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208

Radius: 14.5

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.39 AU - 5.21 AU

Year: 5946 Days

Day: 8 Hours

Environment

Temp: -212 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,141,789 km

• M1: 180,415 km (0.079 R)
• M2: 866,770 km (0.034 R)
• M3: 2,511,898 km (0.051 R)
• M4: 3,056,584 km (0.097 R)
• M5: 4,235,116 km (0.059 R)
• M6: 5,463,165 km (0.079 R)
• M7: 8,099,827 km (0.1 R)
• M8: 9,945,865 km (0.053 R)
• M9: 10,905,685 km (0.097 R)
• M10: 12,147,048 km (0.081 R)
• M11: 14,455,792 km (0.108 R)
• M12: 14,909,672 km (0.113 R)
• M13: 15,687,581 km (0.093 R)
• M14: 17,664,965 km (0.076 R)
• M15: 18,126,026 km (0.102 R)
• M16: 19,496,791 km (0.053 R)
• M17: 21,387,110 km (0.069 R)
• M18: 22,110,116 km (0.072 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 526

Radius: 3.6

Gravity: 40.59 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.64 AU - 7.12 AU

Year: 12034 Days

Day: 15.7 Hours

Environment

Temp: -232 °C

Axial Tilt: 94.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 65,141,789 km

• M1: 44,879 km (0.12 R)
• M2: 164,109 km (0.099 R)
• M3: 810,671 km (0.095 R)
• M4: 978,520 km (0.064 R)
• M5: 1,716,785 km (0.06 R)
• M6: 2,398,353 km (0.096 R)
• M7: 2,767,261 km (0.12 R)
• M8: 2,987,918 km (0.077 R)
• M9: 4,185,300 km (0.076 R)
• M10: 8,209,782 km (0.088 R)
• M11: 10,654,809 km (0.1 R)
• M12: 14,701,581 km (0.102 R)
• M13: 18,333,069 km (0.03 R)
• M14: 18,718,284 km (0.118 R)
• M15: 19,584,904 km (0.069 R)
• M16: 20,726,037 km (0.063 R)
• M17: 25,447,795 km (0.106 R)
• M18: 30,838,554 km (0.084 R)
• M19: 33,971,582 km (0.054 R)
• M20: 35,139,941 km (0.094 R)
• M21: 38,932,098 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 833.3

Radius: 6

Gravity: 23.15 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.44 AU - 8.98 AU

Year: 14276 Days

Day: 18 Hours

Environment

Temp: -240 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 65,141,789 km

• M1: 75,697 km (0.103 R)
• M2: 381,923 km (0.051 R)
• M3: 926,310 km (0.115 R)
• M4: 1,136,495 km (0.049 R)
• M5: 1,527,843 km (0.1 R)
• M6: 2,299,170 km (0.101 R)
• M7: 2,782,072 km (0.088 R)
• M8: 2,998,241 km (0.077 R)
• M9: 3,948,187 km (0.03 R)
• M10: 5,746,503 km (0.093 R)
• M11: 6,341,005 km (0.119 R)
• M12: 8,029,815 km (0.078 R)
• M13: 8,822,983 km (0.103 R)
• M14: 10,797,077 km (0.109 R)
• M15: 11,333,086 km (0.091 R)
• M16: 11,638,415 km (0.107 R)
• M17: 13,114,348 km (0.111 R)
• M18: 14,424,376 km (0.09 R)
• M19: 15,593,184 km (0.048 R)
• M20: 16,123,958 km (0.07 R)
• M21: 18,874,315 km (0.059 R)
• M22: 20,449,879 km (0.095 R)
• M23: 24,870,945 km (0.118 R)
• M24: 26,869,124 km (0.098 R)
• M25: 27,631,624 km (0.081 R)
• M26: 27,851,982 km (0.036 R)
• M27: 32,634,177 km (0.082 R)
• M28: 33,252,465 km (0.108 R)
• M29: 35,283,256 km (0.086 R)
• M30: 38,208,493 km (0.111 R)
• M31: 40,861,462 km (0.118 R)
• M32: 46,065,523 km (0.077 R)
• M33: 53,042,468 km (0.067 R)
• M34: 53,896,822 km (0.068 R)
• M35: 59,033,564 km (0.094 R)
• M36: 60,320,554 km (0.05 R)
• M37: 61,251,203 km (0.069 R)
• M38: 62,380,517 km (0.102 R)
• M39: 63,141,222 km (0.118 R)
• M40: 64,487,005 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 769.5

Radius: 8

Gravity: 12.02 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 6.81 AU - 9.09 AU

Year: 14948 Days

Day: 19.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 65,141,789 km

• M1: 105,466 km (0.075 R)
• M2: 381,175 km (0.119 R)
• M3: 1,242,710 km (0.12 R)
• M4: 2,332,231 km (0.085 R)
• M5: 2,678,550 km (0.096 R)
• M6: 2,936,307 km (0.1 R)
• M7: 4,781,896 km (0.11 R)
• M8: 5,234,878 km (0.106 R)
• M9: 6,723,826 km (0.088 R)
• M10: 10,284,554 km (0.104 R)
• M11: 11,218,793 km (0.109 R)
• M12: 11,955,712 km (0.114 R)
• M13: 13,525,891 km (0.064 R)
• M14: 14,790,442 km (0.104 R)
• M15: 16,208,780 km (0.1 R)
• M16: 16,518,447 km (0.086 R)
• M17: 17,552,617 km (0.087 R)
• M18: 18,460,976 km (0.1 R)
• M19: 21,746,444 km (0.102 R)
• M20: 28,203,088 km (0.117 R)
• M21: 30,728,599 km (0.108 R)
• M22: 31,562,757 km (0.043 R)
• M23: 44,273,041 km (0.061 R)
• M24: 45,031,203 km (0.098 R)
• M25: 47,673,550 km (0.093 R)
• M26: 49,113,430 km (0.06 R)
• M27: 51,577,456 km (0.044 R)
• M28: 64,171,054 km (0.077 R)
• M29: 64,752,242 km (0.068 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 301 - 20,294 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit