🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.6

Radius: 13.5

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.52 AU - 0.86 AU

Year: 382 Days

Day: 10.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 56,435,765 km

• M1: 167,849 km (0.079 R)
• M2: 672,742 km (0.118 R)
• M3: 1,433,596 km (0.104 R)
• M4: 2,233,197 km (0.092 R)
• M5: 2,715,052 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 384.7

Radius: 10

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.01 AU - 1.25 AU

Year: 801 Days

Day: 6.3 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,435,765 km

• M1: 124,465 km (0.099 R)
• M2: 655,837 km (0.093 R)
• M3: 1,005,896 km (0.078 R)
• M4: 1,393,055 km (0.081 R)
• M5: 1,888,075 km (0.073 R)
• M6: 2,366,040 km (0.109 R)
• M7: 2,911,773 km (0.056 R)
• M8: 3,371,338 km (0.103 R)
• M9: 3,921,110 km (0.104 R)
• M10: 4,330,260 km (0.072 R)
• M11: 4,914,440 km (0.098 R)
• M12: 5,842,096 km (0.119 R)
• M13: 6,596,219 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.5

Radius: 14.5

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.24 AU - 6.98 AU

Year: 8861 Days

Day: 14.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,435,765 km

• M1: 191,635 km (0.084 R)
• M2: 705,055 km (0.117 R)
• M3: 1,265,149 km (0.107 R)
• M4: 1,815,370 km (0.106 R)
• M5: 2,404,187 km (0.088 R)
• M6: 2,997,792 km (0.089 R)
• M7: 4,727,442 km (0.088 R)
• M8: 11,255,295 km (0.108 R)
• M9: 14,057,263 km (0.084 R)
• M10: 15,557,879 km (0.088 R)
• M11: 22,163,822 km (0.097 R)
• M12: 22,639,992 km (0.049 R)
• M13: 25,382,121 km (0.025 R)

Planet 4 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446.8

Radius: 5.2

Gravity: 16.52 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.5 AU - 7.12 AU

Year: 10570 Days

Day: 20.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,435,765 km

• M1: 65,973 km (0.091 R)
• M2: 258,206 km (0.029 R)
• M3: 425,008 km (0.119 R)
• M4: 609,462 km (0.12 R)
• M5: 902,973 km (0.061 R)
• M6: 1,082,789 km (0.102 R)
• M7: 1,410,858 km (0.045 R)
• M8: 1,895,555 km (0.106 R)
• M9: 2,580,414 km (0.119 R)
• M10: 3,347,701 km (0.114 R)
• M11: 4,015,656 km (0.081 R)
• M12: 5,677,688 km (0.092 R)
• M13: 5,913,454 km (0.102 R)
• M14: 6,155,653 km (0.102 R)
• M15: 7,427,534 km (0.073 R)
• M16: 7,628,444 km (0.117 R)
• M17: 7,874,084 km (0.069 R)
• M18: 9,275,068 km (0.115 R)
• M19: 9,840,698 km (0.074 R)
• M20: 13,428,653 km (0.094 R)
• M21: 14,900,995 km (0.116 R)
• M22: 15,414,714 km (0.096 R)
• M23: 16,342,071 km (0.082 R)
• M24: 16,888,403 km (0.113 R)
• M25: 17,730,639 km (0.078 R)
• M26: 25,229,232 km (0.096 R)
• M27: 25,866,669 km (0.12 R)
• M28: 26,421,677 km (0.108 R)
• M29: 28,819,132 km (0.079 R)
• M30: 33,602,524 km (0.113 R)
• M31: 36,642,802 km (0.08 R)
• M32: 37,459,905 km (0.055 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 455.7

Radius: 3.6

Gravity: 35.16 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.91 AU - 8.61 AU

Year: 14415 Days

Day: 21.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 56,435,765 km

• M1: 47,273 km (0.067 R)
• M2: 170,242 km (0.111 R)
• M3: 306,825 km (0.032 R)
• M4: 1,241,214 km (0.062 R)
• M5: 2,725,374 km (0.115 R)
• M6: 2,972,210 km (0.061 R)
• M7: 3,941,306 km (0.05 R)
• M8: 4,140,271 km (0.091 R)
• M9: 5,583,890 km (0.057 R)
• M10: 6,360,004 km (0.109 R)
• M11: 8,633,742 km (0.066 R)
• M12: 10,346,937 km (0.099 R)
• M13: 15,734,405 km (0.117 R)
• M14: 18,422,828 km (0.084 R)
• M15: 19,382,947 km (0.112 R)
• M16: 26,149,857 km (0.037 R)
• M17: 30,660,832 km (0.093 R)
• M18: 31,553,632 km (0.087 R)
• M19: 41,996,760 km (0.116 R)
• M20: 45,931,633 km (0.113 R)
• M21: 51,811,727 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 305.4

Radius: 5.3

Gravity: 10.87 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 7.68 AU - 7.94 AU

Year: 14555 Days

Day: 20.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 41.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,435,765 km

• M1: 65,973 km (0.116 R)
• M2: 545,733 km (0.115 R)
• M3: 1,359,396 km (0.104 R)
• M4: 4,402,665 km (0.09 R)
• M5: 4,848,916 km (0.065 R)
• M6: 5,490,242 km (0.03 R)
• M7: 7,922,105 km (0.089 R)
• M8: 11,258,437 km (0.119 R)
• M9: 12,147,497 km (0.075 R)
• M10: 12,844,473 km (0.094 R)
• M11: 13,752,532 km (0.096 R)
• M12: 14,127,425 km (0.106 R)
• M13: 15,160,697 km (0.106 R)
• M14: 19,641,602 km (0.047 R)
• M15: 21,506,040 km (0.09 R)
• M16: 23,485,220 km (0.117 R)
• M17: 25,865,173 km (0.069 R)
• M18: 27,210,955 km (0.061 R)
• M19: 28,805,369 km (0.112 R)
• M20: 35,222,968 km (0.097 R)
• M21: 40,713,360 km (0.107 R)
• M22: 41,227,378 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 258.2

Radius: 7.4

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 6.38 AU - 10.48 AU

Year: 16322 Days

Day: 21.8 Hours

Environment

Temp: -236 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 56,435,765 km

• M1: 92,302 km (0.119 R)
• M2: 357,689 km (0.104 R)
• M3: 963,560 km (0.112 R)
• M4: 1,309,430 km (0.085 R)
• M5: 2,128,479 km (0.115 R)
• M6: 2,868,838 km (0.111 R)
• M7: 6,008,898 km (0.077 R)
• M8: 8,370,898 km (0.117 R)
• M9: 14,180,681 km (0.095 R)
• M10: 14,695,148 km (0.079 R)
• M11: 18,959,585 km (0.088 R)
• M12: 28,588,452 km (0.083 R)
• M13: 30,990,994 km (0.086 R)
• M14: 37,763,140 km (0.098 R)
• M15: 44,358,910 km (0.028 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 567.3

Radius: 7

Gravity: 11.58 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.31 AU - 9.09 AU

Year: 17112 Days

Day: 22.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 56,435,765 km

• M1: 88,113 km (0.115 R)
• M2: 340,784 km (0.11 R)
• M3: 578,794 km (0.092 R)
• M4: 1,079,947 km (0.093 R)
• M5: 1,439,132 km (0.038 R)
• M6: 2,254,290 km (0.068 R)
• M7: 2,940,047 km (0.079 R)
• M8: 3,318,380 km (0.097 R)
• M9: 4,050,662 km (0.079 R)
• M10: 4,954,681 km (0.116 R)
• M11: 5,308,032 km (0.103 R)
• M12: 5,754,282 km (0.117 R)
• M13: 7,699,653 km (0.101 R)
• M14: 9,393,250 km (0.109 R)
• M15: 10,046,095 km (0.117 R)
• M16: 10,440,585 km (0.078 R)
• M17: 11,022,072 km (0.062 R)
• M18: 11,502,730 km (0.095 R)
• M19: 11,934,619 km (0.033 R)
• M20: 12,313,401 km (0.055 R)
• M21: 12,830,860 km (0.05 R)
• M22: 13,295,361 km (0.105 R)
• M23: 21,490,931 km (0.103 R)
• M24: 23,792,644 km (0.051 R)
• M25: 25,002,891 km (0.093 R)
• M26: 26,359,743 km (0.087 R)
• M27: 26,679,733 km (0.12 R)
• M28: 31,078,359 km (0.099 R)
• M29: 32,523,325 km (0.091 R)
• M30: 34,901,931 km (0.106 R)
• M31: 39,582,699 km (0.118 R)
• M32: 62,678,217 km (0.036 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 295.1

Radius: 5.4

Gravity: 10.12 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 7.33 AU - 11.63 AU

Year: 19464 Days

Day: 20.5 Hours

Environment

Temp: -237 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 56,435,765 km

• M1: 75,098 km (0.094 R)
• M2: 265,087 km (0.116 R)
• M3: 466,147 km (0.115 R)
• M4: 692,189 km (0.098 R)
• M5: 1,201,570 km (0.08 R)
• M6: 1,470,547 km (0.09 R)
• M7: 2,808,251 km (0.085 R)
• M8: 3,359,669 km (0.085 R)
• M9: 5,625,778 km (0.119 R)
• M10: 7,766,523 km (0.117 R)
• M11: 8,038,791 km (0.087 R)
• M12: 8,317,492 km (0.109 R)
• M13: 9,292,870 km (0.087 R)
• M14: 13,115,096 km (0.065 R)
• M15: 13,436,432 km (0.116 R)
• M16: 15,192,861 km (0.09 R)
• M17: 16,794,007 km (0.096 R)
• M18: 17,326,276 km (0.099 R)
• M19: 19,236,341 km (0.106 R)
• M20: 20,072,145 km (0.1 R)
• M21: 21,370,654 km (0.067 R)
• M22: 24,326,409 km (0.032 R)
• M23: 25,105,814 km (0.096 R)
• M24: 28,927,890 km (0.055 R)
• M25: 34,806,787 km (0.1 R)
• M26: 36,676,461 km (0.103 R)
• M27: 37,571,356 km (0.117 R)
• M28: 38,350,013 km (0.114 R)
• M29: 39,404,827 km (0.088 R)
• M30: 45,554,048 km (0.115 R)
• M31: 49,009,310 km (0.06 R)
• M32: 49,938,462 km (0.11 R)
• M33: 55,260,257 km (0.076 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 13,159 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit