🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.61

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.5 AU - 0.76 AU

Year: 323 Days

Day: 40.5 Hours

Environment

Temp: -126 °C

Axial Tilt: 33.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,536,382 km

• M1: 34,408 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.4

Radius: 13.2

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.96 AU - 1.18 AU

Year: 715 Days

Day: 13.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 82,536,382 km

• M1: 164,258 km (0.056 R)
• M2: 603,029 km (0.067 R)
• M3: 1,048,232 km (0.088 R)
• M4: 1,483,861 km (0.082 R)
• M5: 1,972,448 km (0.1 R)
• M6: 2,444,579 km (0.113 R)
• M7: 2,922,394 km (0.119 R)
• M8: 4,633,944 km (0.111 R)
• M9: 5,250,287 km (0.04 R)
• M10: 5,697,136 km (0.115 R)
• M11: 6,150,268 km (0.044 R)
• M12: 7,280,180 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.7

Radius: 12.2

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.87 AU - 1.37 AU

Year: 765 Days

Day: 7.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,536,382 km

• M1: 151,692 km (0.099 R)
• M2: 647,310 km (0.032 R)
• M3: 1,228,348 km (0.107 R)
• M4: 1,619,696 km (0.089 R)
• M5: 2,087,638 km (0.108 R)
• M6: 3,008,114 km (0.098 R)
• M7: 3,555,642 km (0.079 R)
• M8: 4,896,189 km (0.118 R)
• M9: 5,290,529 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.2

Radius: 10.1

Gravity: 8.66 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.25 AU - 2.09 AU

Year: 1393 Days

Day: 6.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 82,536,382 km

• M1: 125,662 km (0.091 R)
• M2: 512,223 km (0.045 R)
• M3: 900,280 km (0.105 R)
• M4: 1,238,222 km (0.106 R)
• M5: 2,879,310 km (0.091 R)
• M6: 3,551,005 km (0.066 R)
• M7: 4,611,803 km (0.055 R)
• M8: 6,153,858 km (0.065 R)
• M9: 6,977,245 km (0.045 R)
• M10: 7,787,766 km (0.071 R)
• M11: 8,903,168 km (0.119 R)
• M12: 10,323,899 km (0.1 R)
• M13: 10,701,633 km (0.078 R)
• M14: 11,159,852 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 685.5

Radius: 11.1

Gravity: 5.56 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 1.9 AU - 2.68 AU

Year: 2238 Days

Day: 10.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 147.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 82,536,382 km

• M1: 139,126 km (0.105 R)
• M2: 543,938 km (0.066 R)
• M3: 1,055,263 km (0.1 R)
• M4: 1,811,481 km (0.108 R)
• M5: 2,382,645 km (0.095 R)
• M6: 2,960,542 km (0.034 R)
• M7: 3,436,413 km (0.117 R)
• M8: 3,906,150 km (0.112 R)
• M9: 4,522,044 km (0.039 R)
• M10: 4,886,614 km (0.069 R)
• M11: 5,317,307 km (0.113 R)
• M12: 5,675,145 km (0.119 R)
• M13: 6,333,974 km (0.111 R)
• M14: 7,329,398 km (0.064 R)
• M15: 7,773,853 km (0.068 R)
• M16: 9,114,699 km (0.092 R)
• M17: 10,566,846 km (0.108 R)
• M18: 12,086,012 km (0.097 R)
• M19: 12,876,786 km (0.072 R)
• M20: 13,524,994 km (0.047 R)
• M21: 14,240,521 km (0.089 R)
• M22: 15,649,732 km (0.075 R)
• M23: 16,090,149 km (0.106 R)
• M24: 16,842,476 km (0.109 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 202.6

Radius: 10.3

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.98 AU - 3.18 AU

Year: 2676 Days

Day: 5.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,536,382 km

• M1: 129,253 km (0.114 R)
• M2: 595,848 km (0.111 R)
• M3: 1,066,782 km (0.065 R)
• M4: 1,423,125 km (0.058 R)
• M5: 1,759,869 km (0.032 R)
• M6: 2,301,264 km (0.048 R)
• M7: 3,303,719 km (0.079 R)
• M8: 4,203,102 km (0.043 R)
• M9: 4,729,985 km (0.061 R)
• M10: 6,554,182 km (0.103 R)
• M11: 7,939,907 km (0.038 R)
• M12: 8,394,236 km (0.078 R)
• M13: 8,956,425 km (0.048 R)
• M14: 9,992,091 km (0.076 R)
• M15: 11,966,633 km (0.118 R)
• M16: 12,717,165 km (0.061 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.6

Radius: 8

Gravity: 14.98 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 3.8 AU - 5.76 AU

Year: 6748 Days

Day: 7.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,536,382 km

• M1: 99,483 km (0.098 R)
• M2: 364,271 km (0.093 R)
• M3: 831,016 km (0.081 R)
• M4: 1,188,405 km (0.119 R)
• M5: 1,447,808 km (0.108 R)
• M6: 1,894,059 km (0.103 R)
• M7: 2,234,843 km (0.099 R)
• M8: 2,559,171 km (0.103 R)
• M9: 4,183,504 km (0.054 R)
• M10: 5,029,929 km (0.049 R)
• M11: 7,442,344 km (0.075 R)
• M12: 7,840,574 km (0.114 R)
• M13: 9,121,281 km (0.084 R)
• M14: 9,485,103 km (0.088 R)
• M15: 11,821,822 km (0.095 R)
• M16: 14,456,241 km (0.042 R)
• M17: 16,638,425 km (0.102 R)
• M18: 18,665,775 km (0.033 R)
• M19: 19,475,997 km (0.06 R)
• M20: 20,463,642 km (0.098 R)
• M21: 24,313,693 km (0.115 R)
• M22: 27,854,226 km (0.071 R)
• M23: 28,717,555 km (0.085 R)
• M24: 30,801,005 km (0.075 R)
• M25: 33,733,123 km (0.09 R)
• M26: 36,846,105 km (0.071 R)
• M27: 39,422,480 km (0.047 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 814.4

Radius: 13.9

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 5.31 AU - 5.41 AU

Year: 8012 Days

Day: 14 Hours

Environment

Temp: -210 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 82,536,382 km

• M1: 175,628 km (0.066 R)
• M2: 753,674 km (0.057 R)
• M3: 1,485,357 km (0.101 R)
• M4: 2,092,126 km (0.1 R)
• M5: 3,336,781 km (0.097 R)
• M6: 4,148,798 km (0.115 R)
• M7: 4,674,036 km (0.099 R)
• M8: 5,243,555 km (0.108 R)
• M9: 5,758,770 km (0.107 R)
• M10: 7,081,664 km (0.051 R)
• M11: 8,818,794 km (0.073 R)
• M12: 10,223,369 km (0.064 R)
• M13: 11,239,587 km (0.101 R)
• M14: 13,591,864 km (0.115 R)
• M15: 14,568,888 km (0.053 R)
• M16: 18,141,883 km (0.111 R)
• M17: 19,025,558 km (0.027 R)
• M18: 20,014,849 km (0.094 R)
• M19: 20,561,629 km (0.096 R)
• M20: 22,512,535 km (0.051 R)
• M21: 24,054,590 km (0.091 R)
• M22: 25,483,548 km (0.086 R)
• M23: 25,941,617 km (0.084 R)
• M24: 28,314,389 km (0.114 R)
• M25: 34,259,558 km (0.119 R)
• M26: 39,260,316 km (0.034 R)
• M27: 40,613,728 km (0.114 R)
• M28: 42,895,095 km (0.088 R)
• M29: 43,805,099 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.4

Radius: 3.4

Gravity: 81.7 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 7.98 AU - 11.48 AU

Year: 19597 Days

Day: 19.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 82,536,382 km

• M1: 42,336 km (0.093 R)
• M2: 205,398 km (0.116 R)
• M3: 642,523 km (0.064 R)
• M4: 1,112,111 km (0.062 R)
• M5: 1,394,551 km (0.081 R)
• M6: 1,894,956 km (0.11 R)
• M7: 2,016,280 km (0.104 R)
• M8: 2,252,046 km (0.043 R)
• M9: 5,548,286 km (0.106 R)
• M10: 5,671,854 km (0.061 R)
• M11: 10,989,011 km (0.078 R)
• M12: 11,381,406 km (0.071 R)
• M13: 12,473,620 km (0.103 R)
• M14: 15,751,609 km (0.109 R)
• M15: 18,078,454 km (0.092 R)
• M16: 19,750,958 km (0.114 R)
• M17: 25,951,640 km (0.1 R)
• M18: 49,181,048 km (0.1 R)
• M19: 52,415,952 km (0.029 R)
• M20: 53,339,121 km (0.116 R)
• M21: 64,640,342 km (0.033 R)
• M22: 65,063,555 km (0.096 R)
• M23: 69,840,514 km (0.081 R)
• M24: 72,087,025 km (0.085 R)
• M25: 75,546,476 km (0.092 R)
• M26: 80,573,114 km (0.09 R)
• M27: 82,794,044 km (0.099 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 821.5

Radius: 3.5

Gravity: 67.06 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 7.99 AU - 12.15 AU

Year: 20633 Days

Day: 24.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 82,536,382 km

• M1: 43,683 km (0.076 R)
• M2: 200,760 km (0.086 R)
• M3: 664,663 km (0.095 R)
• M4: 775,216 km (0.107 R)
• M5: 1,631,365 km (0.102 R)
• M6: 2,501,127 km (0.047 R)
• M7: 2,823,361 km (0.093 R)
• M8: 3,062,268 km (0.088 R)
• M9: 5,012,576 km (0.099 R)
• M10: 5,244,303 km (0.076 R)
• M11: 6,376,160 km (0.037 R)
• M12: 6,694,206 km (0.099 R)
• M13: 8,828,668 km (0.09 R)
• M14: 9,689,454 km (0.113 R)
• M15: 12,324,770 km (0.045 R)
• M16: 12,746,636 km (0.099 R)
• M17: 17,072,109 km (0.106 R)
• M18: 18,952,554 km (0.107 R)
• M19: 21,265,637 km (0.063 R)
• M20: 23,224,920 km (0.092 R)
• M21: 23,437,947 km (0.082 R)
• M22: 24,412,577 km (0.11 R)
• M23: 24,632,785 km (0.058 R)
• M24: 27,498,183 km (0.063 R)
• M25: 31,091,075 km (0.066 R)
• M26: 31,220,328 km (0.089 R)
• M27: 32,134,670 km (0.099 R)
• M28: 33,336,240 km (0.069 R)
• M29: 34,984,659 km (0.109 R)
• M30: 36,255,942 km (0.102 R)
• M31: 37,704,199 km (0.055 R)
• M32: 44,865,000 km (0.112 R)
• M33: 46,702,211 km (0.057 R)
• M34: 48,762,922 km (0.101 R)
• M35: 52,148,322 km (0.105 R)
• M36: 55,687,059 km (0.099 R)
• M37: 56,068,684 km (0.1 R)
• M38: 59,780,805 km (0.109 R)
• M39: 64,279,662 km (0.067 R)
• M40: 68,999,026 km (0.097 R)
• M41: 71,668,002 km (0.105 R)
• M42: 80,329,120 km (0.082 R)
• M43: 80,816,061 km (0.11 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 16,953 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit