🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

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: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.51 AU - 0.75 AU

Year: 323 Days

Day: 24.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 27.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,696,787 km

• M1: 141,669 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.3

Radius: 12.9

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.65 AU - 0.95 AU

Year: 462 Days

Day: 5.8 Hours

Environment

Temp: -136 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,696,787 km

• M1: 160,519 km (0.063 R)
• M2: 626,965 km (0.051 R)
• M3: 1,128,118 km (0.105 R)
• M4: 2,088,237 km (0.084 R)
• M5: 2,505,316 km (0.086 R)
• M6: 3,548,312 km (0.102 R)
• M7: 4,148,648 km (0.083 R)
• M8: 5,273,026 km (0.033 R)
• M9: 5,724,363 km (0.095 R)
• M10: 6,165,227 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 451.4

Radius: 8.6

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.66 AU - 2.68 AU

Year: 2817 Days

Day: 9.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,696,787 km

• M1: 112,797 km (0.099 R)
• M2: 515,065 km (0.084 R)
• M3: 788,830 km (0.078 R)
• M4: 1,100,143 km (0.111 R)
• M5: 1,593,816 km (0.113 R)
• M6: 1,992,494 km (0.1 R)
• M7: 2,320,861 km (0.052 R)
• M8: 2,626,639 km (0.052 R)
• M9: 4,498,857 km (0.112 R)
• M10: 5,090,965 km (0.072 R)
• M11: 6,192,155 km (0.066 R)
• M12: 7,385,647 km (0.103 R)
• M13: 7,714,313 km (0.027 R)
• M14: 8,021,438 km (0.066 R)
• M15: 8,400,668 km (0.068 R)
• M16: 8,891,649 km (0.11 R)
• M17: 9,681,525 km (0.094 R)
• M18: 10,479,929 km (0.108 R)
• M19: 10,895,363 km (0.087 R)
• M20: 11,439,899 km (0.045 R)
• M21: 12,002,387 km (0.057 R)
• M22: 13,533,671 km (0.081 R)
• M23: 13,981,267 km (0.057 R)
• M24: 15,383,149 km (0.074 R)
• M25: 16,469,230 km (0.1 R)
• M26: 17,605,575 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.6

Radius: 14.9

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.65 AU - 3.35 AU

Year: 3355 Days

Day: 12.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,696,787 km

• M1: 185,950 km (0.053 R)
• M2: 1,332,019 km (0.101 R)
• M3: 2,108,133 km (0.064 R)
• M4: 3,879,073 km (0.089 R)
• M5: 4,504,242 km (0.055 R)
• M6: 5,502,958 km (0.1 R)
• M7: 6,238,381 km (0.067 R)
• M8: 7,100,364 km (0.086 R)
• M9: 7,773,255 km (0.072 R)
• M10: 8,916,631 km (0.093 R)
• M11: 10,050,883 km (0.062 R)
• M12: 11,754,204 km (0.108 R)
• M13: 12,468,683 km (0.117 R)
• M14: 16,650,393 km (0.116 R)
• M15: 19,454,156 km (0.082 R)
• M16: 21,753,774 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880

Radius: 8.3

Gravity: 12.77 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.82 AU - 3.5 AU

Year: 3627 Days

Day: 6.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,696,787 km

• M1: 103,223 km (0.107 R)
• M2: 384,317 km (0.12 R)
• M3: 808,876 km (0.113 R)
• M4: 1,274,275 km (0.055 R)
• M5: 1,681,181 km (0.094 R)
• M6: 2,129,675 km (0.077 R)
• M7: 2,826,502 km (0.12 R)
• M8: 3,502,984 km (0.115 R)
• M9: 4,077,888 km (0.033 R)
• M10: 4,495,117 km (0.11 R)
• M11: 5,607,826 km (0.09 R)
• M12: 6,243,617 km (0.109 R)
• M13: 7,153,770 km (0.09 R)
• M14: 8,257,952 km (0.09 R)
• M15: 9,080,292 km (0.085 R)
• M16: 9,833,517 km (0.076 R)
• M17: 10,627,732 km (0.072 R)
• M18: 11,418,955 km (0.104 R)
• M19: 14,764,861 km (0.113 R)
• M20: 15,251,653 km (0.042 R)
• M21: 20,658,868 km (0.049 R)
• M22: 22,380,440 km (0.112 R)
• M23: 25,794,562 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 138.1

Radius: 13.6

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 2.44 AU - 3.9 AU

Year: 3644 Days

Day: 9.3 Hours

Environment

Temp: -194 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,696,787 km

• M1: 441,912 km (0.036 R)
• M2: 1,042,398 km (0.118 R)
• M3: 2,412,864 km (0.062 R)
• M4: 3,338,276 km (0.029 R)
• M5: 5,327,031 km (0.106 R)
• M6: 6,414,158 km (0.114 R)
• M7: 6,945,680 km (0.108 R)
• M8: 7,397,316 km (0.034 R)
• M9: 10,024,853 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.6

Radius: 14.1

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.36 AU - 5.26 AU

Year: 6811 Days

Day: 10.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,696,787 km

• M1: 175,329 km (0.099 R)
• M2: 710,739 km (0.069 R)
• M3: 1,506,899 km (0.103 R)
• M4: 3,481,890 km (0.051 R)
• M5: 4,722,954 km (0.12 R)
• M6: 6,472,950 km (0.106 R)
• M7: 8,541,141 km (0.115 R)
• M8: 8,994,422 km (0.071 R)
• M9: 10,084,692 km (0.113 R)
• M10: 12,845,221 km (0.113 R)
• M11: 13,774,673 km (0.077 R)
• M12: 15,162,492 km (0.08 R)
• M13: 15,706,280 km (0.096 R)
• M14: 16,325,915 km (0.067 R)
• M15: 16,897,379 km (0.066 R)
• M16: 18,555,073 km (0.091 R)
• M17: 21,884,972 km (0.037 R)
• M18: 25,425,205 km (0.112 R)
• M19: 25,935,783 km (0.071 R)
• M20: 29,144,956 km (0.105 R)
• M21: 30,176,134 km (0.102 R)
• M22: 32,212,162 km (0.059 R)
• M23: 34,649,560 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 198.6

Radius: 5.6

Gravity: 6.33 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 10.38 AU - 12.22 AU

Year: 24526 Days

Day: 23.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,696,787 km

• M1: 90,208 km (0.117 R)
• M2: 551,717 km (0.108 R)
• M3: 734,825 km (0.118 R)
• M4: 1,070,822 km (0.105 R)
• M5: 1,579,305 km (0.068 R)
• M6: 2,047,845 km (0.106 R)
• M7: 2,626,041 km (0.057 R)
• M8: 4,188,441 km (0.101 R)
• M9: 5,826,388 km (0.112 R)
• M10: 6,014,582 km (0.05 R)
• M11: 7,016,739 km (0.061 R)
• M12: 9,143,871 km (0.118 R)
• M13: 9,815,116 km (0.082 R)
• M14: 10,574,176 km (0.089 R)
• M15: 18,189,456 km (0.11 R)
• M16: 19,835,780 km (0.057 R)
• M17: 20,348,452 km (0.077 R)
• M18: 20,957,614 km (0.073 R)
• M19: 21,133,841 km (0.069 R)
• M20: 21,758,561 km (0.074 R)
• M21: 24,772,211 km (0.104 R)
• M22: 26,173,793 km (0.115 R)
• M23: 27,416,652 km (0.11 R)
• M24: 27,627,585 km (0.097 R)
• M25: 29,685,453 km (0.113 R)
• M26: 30,356,101 km (0.119 R)
• M27: 36,468,670 km (0.106 R)
• M28: 41,661,062 km (0.095 R)
• M29: 45,236,451 km (0.079 R)
• M30: 49,790,360 km (0.103 R)
• M31: 55,646,967 km (0.103 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 18,472 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit