🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.54 AU - 0.66 AU

Year: 163 Days

Day: 25.3 Hours

Environment

Temp: 171 °C

Axial Tilt: 29.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 98,245,999 km

• M1: 43,683 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.68 AU - 1.82 AU

Year: 810 Days

Day: 14.6 Hours

Environment

Temp: -46 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 1.49 AU - 2.01 AU

Year: 810 Days

Day: 46 Hours

Environment

Temp: -31 °C

Axial Tilt: 24.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.78

Radius: 0.91

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 1.47 AU - 2.05 AU

Year: 817 Days

Day: 44.1 Hours

Environment

Temp: -31 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.84 AU - 2.52 AU

Year: 1126 Days

Day: 47.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 11.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 571.9

Radius: 13.3

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.5 AU - 10.38 AU

Year: 10147 Days

Day: 10.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 98,245,999 km

• M1: 166,502 km (0.034 R)
• M2: 669,002 km (0.091 R)
• M3: 1,531,284 km (0.094 R)
• M4: 2,046,349 km (0.101 R)
• M5: 2,560,068 km (0.095 R)
• M6: 3,071,693 km (0.039 R)
• M7: 3,676,068 km (0.092 R)
• M8: 4,275,956 km (0.114 R)
• M9: 4,910,251 km (0.034 R)
• M10: 6,887,785 km (0.102 R)
• M11: 7,355,727 km (0.062 R)
• M12: 9,586,830 km (0.111 R)
• M13: 12,636,233 km (0.078 R)
• M14: 15,344,104 km (0.073 R)
• M15: 16,487,032 km (0.113 R)
• M16: 16,973,823 km (0.085 R)
• M17: 18,049,432 km (0.117 R)
• M18: 19,708,622 km (0.053 R)
• M19: 20,336,484 km (0.042 R)
• M20: 22,810,534 km (0.102 R)
• M21: 23,502,723 km (0.049 R)
• M22: 24,929,438 km (0.084 R)
• M23: 26,224,357 km (0.097 R)
• M24: 26,792,979 km (0.098 R)
• M25: 28,647,693 km (0.066 R)
• M26: 29,352,149 km (0.092 R)
• M27: 30,171,497 km (0.069 R)
• M28: 31,005,804 km (0.086 R)
• M29: 37,164,749 km (0.112 R)
• M30: 40,972,613 km (0.055 R)
• M31: 44,628,785 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53.6

Radius: 14.2

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 9.63 AU - 12.03 AU

Year: 12469 Days

Day: 14.6 Hours

Environment

Temp: -162 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 98,245,999 km

• M1: 176,675 km (0.096 R)
• M2: 763,548 km (0.097 R)
• M3: 1,304,194 km (0.115 R)
• M4: 2,116,959 km (0.059 R)
• M5: 4,565,278 km (0.114 R)
• M6: 5,553,821 km (0.048 R)
• M7: 8,227,883 km (0.083 R)
• M8: 9,385,022 km (0.109 R)
• M9: 10,241,620 km (0.039 R)
• M10: 13,704,511 km (0.119 R)
• M11: 16,023,428 km (0.112 R)
• M12: 18,773,785 km (0.044 R)
• M13: 19,756,643 km (0.109 R)
• M14: 21,098,386 km (0.118 R)
• M15: 22,705,366 km (0.03 R)
• M16: 23,750,457 km (0.032 R)

Planet 8 - Gas Giant

Semi-Major Axis: 13.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.5

Radius: 9.7

Gravity: 9.45 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 11.09 AU - 15.23 AU

Year: 16702 Days

Day: 5.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 98,245,999 km

• M1: 132,843 km (0.096 R)
• M2: 462,856 km (0.043 R)
• M3: 801,246 km (0.115 R)
• M4: 1,214,735 km (0.087 R)
• M5: 1,839,904 km (0.074 R)
• M6: 2,620,356 km (0.051 R)
• M7: 4,058,590 km (0.119 R)
• M8: 4,413,436 km (0.117 R)
• M9: 5,488,147 km (0.077 R)
• M10: 5,802,303 km (0.099 R)
• M11: 7,997,053 km (0.075 R)
• M12: 8,714,226 km (0.056 R)
• M13: 9,088,519 km (0.061 R)
• M14: 10,694,602 km (0.094 R)
• M15: 13,305,683 km (0.096 R)
• M16: 15,214,552 km (0.105 R)
• M17: 15,915,867 km (0.104 R)
• M18: 17,132,547 km (0.092 R)
• M19: 17,551,421 km (0.061 R)
• M20: 21,636,041 km (0.104 R)
• M21: 22,622,938 km (0.079 R)
• M22: 24,054,440 km (0.086 R)
• M23: 30,509,588 km (0.057 R)
• M24: 31,374,264 km (0.12 R)
• M25: 33,803,584 km (0.075 R)
• M26: 35,131,265 km (0.118 R)
• M27: 36,769,960 km (0.086 R)
• M28: 43,680,334 km (0.099 R)
• M29: 44,620,407 km (0.054 R)
• M30: 47,029,681 km (0.087 R)
• M31: 48,850,586 km (0.048 R)
• M32: 55,868,970 km (0.08 R)
• M33: 56,236,532 km (0.101 R)
• M34: 67,403,565 km (0.12 R)
• M35: 70,355,879 km (0.051 R)
• M36: 73,613,821 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 714.2

Radius: 3.8

Gravity: 49.46 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 16.04 AU - 20.92 AU

Year: 27793 Days

Day: 19.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 98,245,999 km

• M1: 47,273 km (0.1 R)
• M2: 263,143 km (0.09 R)
• M3: 448,046 km (0.075 R)
• M4: 770,279 km (0.105 R)
• M5: 988,393 km (0.106 R)
• M6: 1,262,008 km (0.09 R)
• M7: 1,794,277 km (0.084 R)
• M8: 2,155,406 km (0.116 R)
• M9: 3,048,805 km (0.08 R)
• M10: 6,193,352 km (0.08 R)
• M11: 6,379,601 km (0.097 R)
• M12: 8,682,062 km (0.087 R)
• M13: 10,274,382 km (0.119 R)
• M14: 11,276,239 km (0.117 R)
• M15: 13,164,313 km (0.116 R)
• M16: 13,943,419 km (0.082 R)
• M17: 15,764,624 km (0.042 R)
• M18: 17,184,457 km (0.062 R)
• M19: 17,367,864 km (0.091 R)
• M20: 18,303,898 km (0.12 R)
• M21: 21,418,675 km (0.078 R)
• M22: 21,844,730 km (0.104 R)
• M23: 22,167,861 km (0.061 R)
• M24: 22,385,077 km (0.114 R)
• M25: 24,520,138 km (0.085 R)
• M26: 29,713,129 km (0.104 R)
• M27: 30,376,147 km (0.114 R)
• M28: 34,855,705 km (0.086 R)
• M29: 43,718,482 km (0.117 R)
• M30: 47,936,244 km (0.071 R)
• M31: 54,561,186 km (0.087 R)
• M32: 59,231,332 km (0.107 R)
• M33: 61,342,308 km (0.106 R)
• M34: 70,288,260 km (0.096 R)
• M35: 72,892,460 km (0.106 R)
• M36: 76,298,953 km (0.051 R)
• M37: 77,042,455 km (0.068 R)
• M38: 77,291,236 km (0.108 R)
• M39: 77,540,765 km (0.102 R)
• M40: 81,347,133 km (0.116 R)
• M41: 89,055,463 km (0.078 R)
• M42: 94,931,518 km (0.081 R)
• M43: 96,079,232 km (0.12 R)

Planet 10 - Ice Giant

Semi-Major Axis: 20.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 540.2

Radius: 3.1

Gravity: 56.21 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 15.85 AU - 25.63 AU

Year: 33044 Days

Day: 23 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 98,245,999 km

• M1: 38,596 km (0.108 R)
• M2: 165,754 km (0.057 R)
• M3: 620,831 km (0.108 R)
• M4: 800,947 km (0.048 R)
• M5: 922,271 km (0.068 R)
• M6: 1,113,008 km (0.074 R)
• M7: 1,686,267 km (0.094 R)
• M8: 1,993,092 km (0.067 R)
• M9: 2,384,590 km (0.09 R)
• M10: 3,021,279 km (0.035 R)
• M11: 3,286,815 km (0.061 R)
• M12: 3,932,629 km (0.111 R)
• M13: 4,321,733 km (0.117 R)
• M14: 4,853,404 km (0.089 R)
• M15: 5,384,925 km (0.098 R)
• M16: 6,562,559 km (0.116 R)
• M17: 9,047,530 km (0.106 R)
• M18: 10,105,187 km (0.074 R)
• M19: 14,249,496 km (0.105 R)
• M20: 15,936,212 km (0.113 R)
• M21: 17,285,286 km (0.112 R)
• M22: 17,657,635 km (0.099 R)
• M23: 18,321,700 km (0.11 R)
• M24: 18,708,710 km (0.117 R)
• M25: 19,599,116 km (0.077 R)
• M26: 21,357,639 km (0.054 R)
• M27: 21,678,377 km (0.037 R)
• M28: 27,635,963 km (0.097 R)
• M29: 31,742,723 km (0.067 R)
• M30: 47,909,167 km (0.085 R)
• M31: 48,642,795 km (0.061 R)
• M32: 49,197,953 km (0.054 R)
• M33: 53,989,124 km (0.06 R)
• M34: 60,563,352 km (0.07 R)
• M35: 61,852,586 km (0.073 R)
• M36: 63,599,889 km (0.091 R)
• M37: 66,282,029 km (0.088 R)
• M38: 67,192,632 km (0.119 R)
• M39: 75,765,786 km (0.088 R)
• M40: 76,511,532 km (0.084 R)
• M41: 81,348,031 km (0.047 R)
• M42: 90,504,019 km (0.094 R)

Kuiper Belt

Range: 31.4 - 59.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 211 - 17,776 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit