🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.52 AU - 0.82 AU

Year: 354 Days

Day: 26.4 Hours

Environment

Temp: -145 °C

Axial Tilt: 3.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 38,021,321 km

• M1: 37,998 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 66.8

Radius: 9.6

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.8 AU - 1.3 AU

Year: 695 Days

Day: 9.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 38,021,321 km

• M1: 120,725 km (0.108 R)
• M2: 439,519 km (0.119 R)
• M3: 743,053 km (0.059 R)
• M4: 1,052,271 km (0.076 R)
• M5: 1,546,543 km (0.034 R)
• M6: 1,898,846 km (0.106 R)
• M7: 2,258,479 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.9

Radius: 11.4

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.01 AU - 2.75 AU

Year: 2371 Days

Day: 10.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 38,021,321 km

• M1: 141,819 km (0.051 R)
• M2: 748,588 km (0.102 R)
• M3: 1,106,725 km (0.049 R)
• M4: 1,679,535 km (0.082 R)
• M5: 2,414,958 km (0.081 R)
• M6: 3,819,084 km (0.071 R)
• M7: 4,180,512 km (0.062 R)
• M8: 5,210,195 km (0.091 R)
• M9: 5,784,800 km (0.111 R)
• M10: 8,054,349 km (0.096 R)
• M11: 8,652,442 km (0.046 R)
• M12: 9,751,986 km (0.113 R)
• M13: 12,098,728 km (0.118 R)
• M14: 14,363,490 km (0.081 R)
• M15: 15,144,391 km (0.046 R)
• M16: 17,004,790 km (0.119 R)
• M17: 19,716,102 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.4

Radius: 11.8

Gravity: 2.87 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.94 AU - 3 AU

Year: 2506 Days

Day: 8.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 38,021,321 km

• M1: 151,543 km (0.071 R)
• M2: 794,365 km (0.099 R)
• M3: 1,265,897 km (0.109 R)
• M4: 1,763,460 km (0.119 R)
• M5: 3,224,133 km (0.092 R)
• M6: 3,833,445 km (0.075 R)
• M7: 4,805,981 km (0.057 R)
• M8: 5,696,837 km (0.037 R)
• M9: 9,867,027 km (0.111 R)
• M10: 11,721,442 km (0.061 R)
• M11: 12,670,192 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.3

Radius: 8.7

Gravity: 12.25 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.16 AU - 3.42 AU

Year: 3853 Days

Day: 12.4 Hours

Environment

Temp: -208 °C

Axial Tilt: 64.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 38,021,321 km

• M1: 108,458 km (0.098 R)
• M2: 480,508 km (0.081 R)
• M3: 797,357 km (0.078 R)
• M4: 1,188,256 km (0.118 R)
• M5: 2,623,049 km (0.094 R)
• M6: 4,439,317 km (0.097 R)
• M7: 5,453,142 km (0.048 R)
• M8: 5,911,061 km (0.068 R)
• M9: 6,519,176 km (0.086 R)
• M10: 7,202,090 km (0.12 R)
• M11: 8,333,200 km (0.116 R)
• M12: 8,671,740 km (0.099 R)
• M13: 9,866,877 km (0.063 R)
• M14: 13,329,769 km (0.091 R)
• M15: 14,752,744 km (0.045 R)
• M16: 15,304,610 km (0.092 R)
• M17: 16,391,139 km (0.113 R)
• M18: 18,398,893 km (0.084 R)
• M19: 22,677,691 km (0.113 R)
• M20: 23,487,165 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.5

Radius: 13.1

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 3.49 AU - 3.77 AU

Year: 4466 Days

Day: 11.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 149.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,021,321 km

• M1: 162,912 km (0.101 R)
• M2: 665,561 km (0.113 R)
• M3: 1,521,710 km (0.105 R)
• M4: 1,933,104 km (0.097 R)
• M5: 2,720,138 km (0.026 R)
• M6: 3,237,448 km (0.105 R)
• M7: 3,954,171 km (0.075 R)
• M8: 4,497,211 km (0.094 R)
• M9: 4,956,776 km (0.064 R)
• M10: 5,447,606 km (0.101 R)
• M11: 6,527,553 km (0.097 R)
• M12: 11,308,552 km (0.103 R)
• M13: 12,358,729 km (0.097 R)
• M14: 13,629,862 km (0.09 R)
• M15: 15,268,258 km (0.104 R)
• M16: 16,253,210 km (0.094 R)
• M17: 18,607,432 km (0.038 R)
• M18: 19,933,767 km (0.116 R)
• M19: 22,405,423 km (0.097 R)
• M20: 24,369,194 km (0.054 R)
• M21: 25,875,046 km (0.069 R)
• M22: 28,636,623 km (0.048 R)
• M23: 29,159,019 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381

Radius: 14.1

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 4.29 AU - 4.89 AU

Year: 6349 Days

Day: 11 Hours

Environment

Temp: -204 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,021,321 km

• M1: 179,966 km (0.08 R)
• M2: 817,552 km (0.113 R)
• M3: 1,853,069 km (0.109 R)
• M4: 2,319,814 km (0.052 R)
• M5: 3,686,092 km (0.115 R)
• M6: 4,912,794 km (0.07 R)
• M7: 6,150,417 km (0.062 R)
• M8: 7,107,245 km (0.107 R)
• M9: 7,798,836 km (0.113 R)
• M10: 8,649,300 km (0.092 R)
• M11: 9,236,621 km (0.107 R)
• M12: 10,755,638 km (0.049 R)
• M13: 11,343,259 km (0.115 R)
• M14: 12,931,838 km (0.1 R)
• M15: 15,387,787 km (0.107 R)
• M16: 16,251,864 km (0.079 R)
• M17: 17,763,850 km (0.08 R)
• M18: 18,394,255 km (0.107 R)
• M19: 20,103,261 km (0.064 R)
• M20: 21,488,238 km (0.119 R)
• M21: 22,422,028 km (0.07 R)
• M22: 27,169,068 km (0.075 R)
• M23: 29,033,955 km (0.109 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.2

Radius: 11.5

Gravity: 4.93 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.76 AU - 5.62 AU

Year: 6558 Days

Day: 8.1 Hours

Environment

Temp: -216 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 38,021,321 km

• M1: 143,016 km (0.097 R)
• M2: 603,029 km (0.096 R)
• M3: 1,487,751 km (0.11 R)
• M4: 4,339,385 km (0.112 R)
• M5: 5,450,748 km (0.105 R)
• M6: 7,993,463 km (0.113 R)
• M7: 8,592,004 km (0.104 R)
• M8: 10,853,176 km (0.1 R)
• M9: 11,941,650 km (0.1 R)
• M10: 12,354,989 km (0.099 R)
• M11: 13,934,144 km (0.072 R)
• M12: 14,450,556 km (0.103 R)
• M13: 15,766,718 km (0.106 R)
• M14: 16,581,278 km (0.107 R)
• M15: 20,930,836 km (0.12 R)
• M16: 23,327,095 km (0.077 R)
• M17: 23,811,194 km (0.054 R)
• M18: 26,858,054 km (0.036 R)
• M19: 27,748,460 km (0.056 R)
• M20: 33,203,995 km (0.099 R)
• M21: 33,611,650 km (0.092 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.1

Radius: 13.9

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.62 AU - 5.96 AU

Year: 6769 Days

Day: 10.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 38,021,321 km

• M1: 174,132 km (0.074 R)
• M2: 773,421 km (0.041 R)
• M3: 1,289,085 km (0.09 R)
• M4: 1,855,612 km (0.057 R)
• M5: 2,662,992 km (0.076 R)
• M6: 4,383,068 km (0.116 R)
• M7: 8,793,213 km (0.095 R)
• M8: 11,525,469 km (0.099 R)
• M9: 12,606,014 km (0.069 R)
• M10: 13,343,831 km (0.114 R)
• M11: 19,865,849 km (0.09 R)
• M12: 24,587,158 km (0.058 R)
• M13: 35,059,009 km (0.102 R)

Planet 10 - Gas Giant

Semi-Major Axis: 5.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590

Radius: 14.7

Gravity: 2.73 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 4.81 AU - 5.55 AU

Year: 7612 Days

Day: 9.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 127.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 38,021,321 km

• M1: 183,407 km (0.104 R)
• M2: 699,370 km (0.088 R)
• M3: 1,235,379 km (0.091 R)
• M4: 1,992,644 km (0.103 R)
• M5: 2,715,052 km (0.066 R)
• M6: 3,276,044 km (0.111 R)
• M7: 3,818,037 km (0.102 R)
• M8: 4,341,330 km (0.095 R)
• M9: 5,912,257 km (0.116 R)
• M10: 6,512,594 km (0.102 R)
• M11: 7,301,423 km (0.094 R)
• M12: 7,993,613 km (0.077 R)
• M13: 8,729,335 km (0.041 R)
• M14: 9,332,364 km (0.095 R)
• M15: 11,768,266 km (0.077 R)
• M16: 12,721,504 km (0.11 R)
• M17: 13,329,021 km (0.047 R)
• M18: 14,542,708 km (0.119 R)
• M19: 22,132,706 km (0.072 R)
• M20: 24,250,264 km (0.095 R)
• M21: 25,358,185 km (0.111 R)
• M22: 26,410,756 km (0.083 R)
• M23: 27,038,020 km (0.104 R)
• M24: 28,979,800 km (0.078 R)
• M25: 30,130,208 km (0.11 R)
• M26: 32,932,924 km (0.083 R)
• M27: 35,253,785 km (0.025 R)
• M28: 35,905,284 km (0.12 R)
• M29: 36,897,417 km (0.109 R)
• M30: 37,569,112 km (0.041 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: 249 - 10,364 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit