🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 551.3

Radius: 12.1

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.61 AU - 0.69 AU

Year: 355 Days

Day: 12.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,268,143 km

• M1: 150,495 km (0.098 R)
• M2: 647,759 km (0.076 R)
• M3: 1,226,104 km (0.115 R)
• M4: 2,160,044 km (0.029 R)
• M5: 3,110,140 km (0.038 R)
• M6: 3,680,856 km (0.071 R)
• M7: 4,385,910 km (0.042 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.9

Radius: 10.1

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.71 AU - 0.79 AU

Year: 441 Days

Day: 8.1 Hours

Environment

Temp: -162 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,268,143 km

• M1: 125,662 km (0.036 R)
• M2: 543,339 km (0.091 R)
• M3: 1,017,714 km (0.088 R)
• M4: 1,470,248 km (0.114 R)
• M5: 2,070,883 km (0.108 R)
• M6: 2,456,547 km (0.11 R)
• M7: 3,158,909 km (0.103 R)
• M8: 3,963,745 km (0.089 R)
• M9: 4,324,575 km (0.034 R)
• M10: 4,736,568 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 855.9

Radius: 13.1

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.12 AU - 1.36 AU

Year: 937 Days

Day: 9.4 Hours

Environment

Temp: -179 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,268,143 km

• M1: 162,912 km (0.085 R)
• M2: 578,645 km (0.114 R)
• M3: 1,002,306 km (0.097 R)
• M4: 1,419,085 km (0.071 R)
• M5: 2,338,065 km (0.099 R)
• M6: 2,963,085 km (0.067 R)
• M7: 3,577,184 km (0.07 R)
• M8: 4,986,695 km (0.073 R)
• M9: 5,693,396 km (0.116 R)
• M10: 9,066,828 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 924.3

Radius: 8.4

Gravity: 13.1 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.31 AU - 1.37 AU

Year: 1052 Days

Day: 6.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 32,268,143 km

• M1: 104,419 km (0.069 R)
• M2: 395,686 km (0.052 R)
• M3: 706,700 km (0.111 R)
• M4: 996,322 km (0.1 R)
• M5: 1,311,375 km (0.05 R)
• M6: 1,638,246 km (0.05 R)
• M7: 2,040,365 km (0.114 R)
• M8: 2,422,887 km (0.082 R)
• M9: 2,760,081 km (0.081 R)
• M10: 3,185,836 km (0.061 R)
• M11: 3,686,690 km (0.087 R)
• M12: 4,327,418 km (0.12 R)
• M13: 5,529,436 km (0.104 R)
• M14: 6,368,381 km (0.101 R)
• M15: 7,520,285 km (0.09 R)
• M16: 7,782,231 km (0.114 R)
• M17: 9,008,634 km (0.065 R)
• M18: 9,364,378 km (0.105 R)
• M19: 9,729,397 km (0.091 R)
• M20: 11,183,787 km (0.092 R)
• M21: 11,525,768 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.9

Radius: 13

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.13 AU - 1.63 AU

Year: 1100 Days

Day: 14.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 32,268,143 km

• M1: 169,794 km (0.118 R)
• M2: 586,124 km (0.117 R)
• M3: 1,304,493 km (0.069 R)
• M4: 1,929,813 km (0.083 R)
• M5: 3,288,012 km (0.084 R)
• M6: 4,489,582 km (0.094 R)
• M7: 5,612,164 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 552.6

Radius: 10.2

Gravity: 5.31 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.36 AU - 1.48 AU

Year: 1148 Days

Day: 14 Hours

Environment

Temp: -199 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 32,268,143 km

• M1: 126,859 km (0.096 R)
• M2: 514,766 km (0.073 R)
• M3: 876,344 km (0.103 R)
• M4: 1,443,919 km (0.089 R)
• M5: 1,897,051 km (0.118 R)
• M6: 2,478,388 km (0.106 R)
• M7: 2,959,644 km (0.046 R)
• M8: 3,487,874 km (0.072 R)
• M9: 3,980,500 km (0.112 R)
• M10: 4,519,052 km (0.079 R)
• M11: 5,259,861 km (0.061 R)
• M12: 6,634,067 km (0.027 R)
• M13: 6,982,630 km (0.106 R)
• M14: 7,590,746 km (0.092 R)
• M15: 8,940,717 km (0.098 R)
• M16: 9,658,188 km (0.091 R)
• M17: 10,016,026 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.5

Radius: 11.3

Gravity: 6.8 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.32 AU - 1.64 AU

Year: 1221 Days

Day: 10.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,268,143 km

• M1: 140,472 km (0.102 R)
• M2: 495,319 km (0.075 R)
• M3: 1,216,380 km (0.089 R)
• M4: 1,709,754 km (0.106 R)
• M5: 2,129,226 km (0.068 R)
• M6: 3,035,341 km (0.062 R)
• M7: 3,888,198 km (0.063 R)
• M8: 4,416,877 km (0.099 R)
• M9: 4,893,795 km (0.052 R)
• M10: 5,996,481 km (0.099 R)
• M11: 6,390,971 km (0.062 R)
• M12: 7,103,804 km (0.062 R)
• M13: 7,923,900 km (0.076 R)
• M14: 8,286,076 km (0.057 R)
• M15: 9,134,147 km (0.097 R)
• M16: 9,751,986 km (0.088 R)
• M17: 10,596,765 km (0.097 R)
• M18: 11,666,839 km (0.112 R)
• M19: 12,283,631 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.3

Radius: 10.6

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.35 AU - 1.83 AU

Year: 1360 Days

Day: 7.6 Hours

Environment

Temp: -183 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,268,143 km

• M1: 131,796 km (0.115 R)
• M2: 553,961 km (0.115 R)
• M3: 954,734 km (0.12 R)
• M4: 1,291,628 km (0.028 R)
• M5: 2,060,262 km (0.109 R)
• M6: 2,717,296 km (0.098 R)
• M7: 3,244,329 km (0.033 R)
• M8: 3,754,159 km (0.106 R)
• M9: 5,140,033 km (0.09 R)
• M10: 5,971,797 km (0.114 R)
• M11: 6,396,207 km (0.113 R)
• M12: 7,070,295 km (0.034 R)
• M13: 8,098,780 km (0.086 R)
• M14: 8,472,475 km (0.118 R)
• M15: 9,348,221 km (0.099 R)
• M16: 11,243,926 km (0.111 R)
• M17: 12,527,774 km (0.094 R)
• M18: 12,950,688 km (0.073 R)

Planet 9 - Gas Giant

Semi-Major Axis: 3.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 821.4

Radius: 12.4

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 3.49 AU - 4.13 AU

Year: 5044 Days

Day: 8.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 32,268,143 km

• M1: 171,888 km (0.07 R)
• M2: 1,216,380 km (0.037 R)
• M3: 1,944,324 km (0.062 R)
• M4: 2,335,372 km (0.102 R)
• M5: 2,815,881 km (0.078 R)
• M6: 3,772,709 km (0.056 R)
• M7: 4,290,018 km (0.11 R)
• M8: 5,915,698 km (0.053 R)
• M9: 6,749,706 km (0.116 R)
• M10: 7,479,295 km (0.075 R)
• M11: 7,994,510 km (0.104 R)
• M12: 11,941,949 km (0.115 R)
• M13: 12,442,803 km (0.101 R)
• M14: 14,475,240 km (0.085 R)
• M15: 15,218,741 km (0.099 R)
• M16: 17,731,536 km (0.108 R)
• M17: 19,461,486 km (0.099 R)
• M18: 20,580,478 km (0.108 R)
• M19: 21,228,536 km (0.081 R)
• M20: 23,331,882 km (0.084 R)
• M21: 23,957,650 km (0.073 R)
• M22: 24,594,488 km (0.073 R)
• M23: 26,319,950 km (0.1 R)
• M24: 31,125,931 km (0.077 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 476 - 19,471 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit