🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.4

Radius: 10

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.96 AU - 1.02 AU

Year: 636 Days

Day: 6.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 28,463,120 km

• M1: 124,914 km (0.108 R)
• M2: 482,902 km (0.061 R)
• M3: 805,285 km (0.103 R)
• M4: 1,608,776 km (0.106 R)
• M5: 1,995,486 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 890.2

Radius: 13.5

Gravity: 4.88 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 1.77 AU - 2.29 AU

Year: 1867 Days

Day: 13.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 28,463,120 km

• M1: 167,998 km (0.073 R)
• M2: 743,501 km (0.077 R)
• M3: 2,110,377 km (0.081 R)
• M4: 2,574,879 km (0.106 R)
• M5: 3,123,753 km (0.12 R)
• M6: 4,583,080 km (0.083 R)
• M7: 5,303,095 km (0.104 R)
• M8: 6,097,460 km (0.109 R)
• M9: 6,536,829 km (0.091 R)
• M10: 7,164,990 km (0.069 R)
• M11: 8,260,196 km (0.089 R)
• M12: 10,560,114 km (0.088 R)
• M13: 11,582,166 km (0.094 R)
• M14: 13,474,131 km (0.066 R)
• M15: 14,088,828 km (0.118 R)
• M16: 15,327,349 km (0.071 R)
• M17: 16,438,412 km (0.061 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.7

Radius: 13.4

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 2.38 AU - 2.88 AU

Year: 2754 Days

Day: 13.1 Hours

Environment

Temp: -209 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,463,120 km

• M1: 166,802 km (0.112 R)
• M2: 698,323 km (0.082 R)
• M3: 1,286,242 km (0.03 R)
• M4: 2,387,582 km (0.11 R)
• M5: 2,902,947 km (0.117 R)
• M6: 3,613,686 km (0.096 R)
• M7: 4,332,654 km (0.099 R)
• M8: 4,782,494 km (0.099 R)
• M9: 5,404,073 km (0.088 R)
• M10: 7,471,067 km (0.109 R)
• M11: 8,584,823 km (0.084 R)
• M12: 9,328,026 km (0.079 R)
• M13: 10,082,747 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 904.8

Radius: 13.7

Gravity: 4.82 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 2.69 AU - 4.25 AU

Year: 4174 Days

Day: 14.7 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 28,463,120 km

• M1: 177,722 km (0.062 R)
• M2: 654,640 km (0.034 R)
• M3: 1,100,592 km (0.109 R)
• M4: 1,760,019 km (0.116 R)
• M5: 2,349,285 km (0.109 R)
• M6: 2,957,400 km (0.048 R)
• M7: 4,066,818 km (0.12 R)
• M8: 5,779,863 km (0.115 R)
• M9: 6,636,910 km (0.112 R)
• M10: 9,433,492 km (0.057 R)
• M11: 9,931,055 km (0.085 R)
• M12: 12,099,625 km (0.046 R)
• M13: 12,737,660 km (0.118 R)
• M14: 13,346,524 km (0.088 R)
• M15: 14,404,330 km (0.116 R)
• M16: 14,953,803 km (0.077 R)
• M17: 15,978,249 km (0.075 R)
• M18: 16,567,366 km (0.065 R)
• M19: 17,293,215 km (0.09 R)
• M20: 18,550,286 km (0.109 R)
• M21: 19,333,281 km (0.11 R)
• M22: 20,206,184 km (0.084 R)
• M23: 23,582,908 km (0.07 R)
• M24: 25,206,792 km (0.092 R)
• M25: 28,504,229 km (0.083 R)
• M26: 29,371,597 km (0.051 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.4

Radius: 12.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 4.37 AU - 4.41 AU

Year: 5939 Days

Day: 7.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 28,463,120 km

• M1: 154,086 km (0.105 R)
• M2: 554,410 km (0.066 R)
• M3: 942,317 km (0.085 R)
• M4: 1,432,549 km (0.115 R)
• M5: 2,121,597 km (0.083 R)
• M6: 2,837,872 km (0.102 R)
• M7: 4,114,689 km (0.057 R)
• M8: 4,649,951 km (0.098 R)
• M9: 5,149,308 km (0.041 R)
• M10: 5,801,555 km (0.115 R)
• M11: 7,168,880 km (0.036 R)
• M12: 7,801,080 km (0.1 R)
• M13: 9,628,418 km (0.071 R)
• M14: 10,311,183 km (0.111 R)
• M15: 10,889,528 km (0.068 R)
• M16: 12,014,055 km (0.071 R)
• M17: 12,405,553 km (0.12 R)
• M18: 13,008,881 km (0.115 R)
• M19: 13,950,600 km (0.113 R)
• M20: 14,383,536 km (0.066 R)
• M21: 16,205,489 km (0.117 R)
• M22: 18,889,873 km (0.1 R)
• M23: 19,621,556 km (0.083 R)
• M24: 21,000,250 km (0.088 R)
• M25: 22,368,921 km (0.048 R)
• M26: 23,414,909 km (0.103 R)
• M27: 27,333,476 km (0.098 R)
• M28: 28,269,659 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.6

Radius: 8

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.95 AU - 5.35 AU

Year: 6474 Days

Day: 8.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,463,120 km

• M1: 99,483 km (0.12 R)
• M2: 358,436 km (0.093 R)
• M3: 670,498 km (0.075 R)
• M4: 926,160 km (0.06 R)
• M5: 1,449,155 km (0.106 R)
• M6: 2,004,462 km (0.105 R)
• M7: 2,804,810 km (0.103 R)
• M8: 3,114,478 km (0.06 R)
• M9: 3,802,778 km (0.088 R)
• M10: 6,058,863 km (0.11 R)
• M11: 6,679,395 km (0.1 R)
• M12: 7,305,612 km (0.047 R)
• M13: 12,727,936 km (0.081 R)
• M14: 14,871,375 km (0.041 R)
• M15: 18,420,435 km (0.109 R)
• M16: 21,741,956 km (0.115 R)
• M17: 22,726,759 km (0.03 R)
• M18: 25,525,436 km (0.085 R)
• M19: 25,859,189 km (0.072 R)
• M20: 26,706,511 km (0.1 R)
• M21: 27,223,671 km (0.054 R)
• M22: 30,188,402 km (0.088 R)
• M23: 31,032,881 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.6

Radius: 8.2

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 5.37 AU - 5.63 AU

Year: 8328 Days

Day: 11.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 28,463,120 km

• M1: 102,026 km (0.049 R)
• M2: 365,916 km (0.084 R)
• M3: 882,328 km (0.106 R)
• M4: 2,296,776 km (0.097 R)
• M5: 3,841,524 km (0.106 R)
• M6: 4,111,997 km (0.05 R)
• M7: 5,384,775 km (0.102 R)
• M8: 7,118,764 km (0.109 R)
• M9: 7,415,118 km (0.077 R)
• M10: 7,758,445 km (0.053 R)
• M11: 8,192,578 km (0.117 R)
• M12: 8,726,343 km (0.055 R)
• M13: 9,023,145 km (0.1 R)
• M14: 9,414,792 km (0.086 R)
• M15: 11,046,456 km (0.116 R)
• M16: 12,321,928 km (0.041 R)
• M17: 13,077,547 km (0.083 R)
• M18: 13,921,129 km (0.108 R)
• M19: 16,734,317 km (0.119 R)
• M20: 16,995,515 km (0.078 R)
• M21: 20,569,558 km (0.082 R)
• M22: 21,864,327 km (0.112 R)
• M23: 23,374,667 km (0.101 R)
• M24: 27,953,709 km (0.109 R)
• M25: 30,989,648 km (0.065 R)
• M26: 31,483,021 km (0.075 R)
• M27: 33,302,730 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 558.6

Radius: 10.1

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 4.8 AU - 6.9 AU

Year: 9136 Days

Day: 6.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 28,463,120 km

• M1: 125,662 km (0.106 R)
• M2: 798,404 km (0.101 R)
• M3: 1,306,588 km (0.116 R)
• M4: 2,103,346 km (0.096 R)
• M5: 2,487,364 km (0.077 R)
• M6: 2,897,561 km (0.106 R)
• M7: 3,514,802 km (0.053 R)
• M8: 3,956,265 km (0.099 R)
• M9: 5,348,872 km (0.108 R)
• M10: 5,934,697 km (0.032 R)
• M11: 6,671,766 km (0.092 R)
• M12: 7,081,514 km (0.113 R)
• M13: 10,889,379 km (0.109 R)
• M14: 11,670,279 km (0.096 R)
• M15: 12,432,331 km (0.102 R)
• M16: 15,107,889 km (0.074 R)
• M17: 19,998,094 km (0.066 R)
• M18: 21,407,754 km (0.054 R)
• M19: 22,715,389 km (0.111 R)
• M20: 27,522,268 km (0.028 R)
• M21: 35,376,904 km (0.075 R)
• M22: 39,208,854 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.4

Radius: 5.8

Gravity: 2.51 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 9.31 AU - 9.61 AU

Year: 18787 Days

Day: 17.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,463,120 km

• M1: 72,256 km (0.085 R)
• M2: 276,457 km (0.097 R)
• M3: 468,690 km (0.119 R)
• M4: 1,679,984 km (0.091 R)
• M5: 2,014,186 km (0.106 R)
• M6: 2,357,064 km (0.097 R)
• M7: 3,244,479 km (0.074 R)
• M8: 3,599,923 km (0.119 R)
• M9: 4,602,528 km (0.106 R)
• M10: 5,622,038 km (0.113 R)
• M11: 8,177,768 km (0.105 R)
• M12: 8,584,973 km (0.087 R)
• M13: 9,308,279 km (0.108 R)
• M14: 11,518,438 km (0.061 R)
• M15: 12,610,203 km (0.071 R)
• M16: 13,998,022 km (0.115 R)
• M17: 15,794,244 km (0.115 R)
• M18: 16,618,229 km (0.083 R)
• M19: 21,247,984 km (0.057 R)
• M20: 21,861,784 km (0.083 R)
• M21: 22,645,527 km (0.072 R)
• M22: 23,124,540 km (0.116 R)
• M23: 25,968,246 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.5

Radius: 7.1

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 7.96 AU - 11.14 AU

Year: 19055 Days

Day: 22.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,463,120 km

• M1: 91,404 km (0.108 R)
• M2: 1,044,492 km (0.113 R)
• M3: 2,058,317 km (0.065 R)
• M4: 3,467,679 km (0.118 R)
• M5: 4,217,762 km (0.108 R)
• M6: 5,398,688 km (0.104 R)
• M7: 6,497,185 km (0.114 R)
• M8: 15,905,545 km (0.064 R)
• M9: 17,637,290 km (0.073 R)
• M10: 19,823,214 km (0.115 R)
• M11: 21,896,491 km (0.104 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: 419 - 15,632 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit