🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

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: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 36 Hours

Environment

Temp: -138 °C

Axial Tilt: 14.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,360,584 km

• M1: 52,958 km (0.116 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.5

Radius: 12.2

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 0.65 AU - 0.85 AU

Year: 426 Days

Day: 14 Hours

Environment

Temp: -138 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,360,584 km

• M1: 151,692 km (0.087 R)
• M2: 577,597 km (0.118 R)
• M3: 1,012,179 km (0.117 R)
• M4: 1,416,243 km (0.109 R)
• M5: 1,878,052 km (0.088 R)
• M6: 2,595,673 km (0.112 R)
• M7: 2,977,895 km (0.095 R)
• M8: 3,431,775 km (0.028 R)
• M9: 3,932,030 km (0.06 R)
• M10: 5,050,125 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.1

Radius: 14.1

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.73 AU - 0.83 AU

Year: 452 Days

Day: 13.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 64,360,584 km

• M1: 178,021 km (0.117 R)
• M2: 710,889 km (0.082 R)
• M3: 1,267,094 km (0.08 R)
• M4: 1,737,430 km (0.117 R)
• M5: 2,223,024 km (0.1 R)
• M6: 2,895,616 km (0.069 R)
• M7: 3,338,875 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 107.5

Radius: 12.3

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.89 AU - 1.07 AU

Year: 636 Days

Day: 8.9 Hours

Environment

Temp: -163 °C

Axial Tilt: 165.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,360,584 km

• M1: 153,936 km (0.102 R)
• M2: 586,424 km (0.066 R)
• M3: 1,362,537 km (0.047 R)
• M4: 1,780,663 km (0.073 R)
• M5: 2,598,665 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 991.6

Radius: 9.6

Gravity: 10.76 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1 AU - 1.54 AU

Year: 939 Days

Day: 5.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 64,360,584 km

• M1: 119,379 km (0.075 R)
• M2: 418,575 km (0.08 R)
• M3: 742,005 km (0.098 R)
• M4: 1,044,193 km (0.101 R)
• M5: 1,512,883 km (0.108 R)
• M6: 1,825,842 km (0.077 R)
• M7: 2,193,254 km (0.041 R)
• M8: 2,850,887 km (0.086 R)
• M9: 3,542,627 km (0.091 R)
• M10: 4,119,177 km (0.072 R)
• M11: 4,610,008 km (0.115 R)
• M12: 5,218,123 km (0.12 R)
• M13: 5,603,787 km (0.107 R)
• M14: 7,192,516 km (0.115 R)
• M15: 8,861,579 km (0.112 R)
• M16: 9,412,100 km (0.086 R)
• M17: 10,077,661 km (0.087 R)
• M18: 10,453,899 km (0.108 R)
• M19: 11,002,774 km (0.102 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 400.4

Radius: 10.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.98 AU - 2.94 AU

Year: 2531 Days

Day: 8.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,360,584 km

• M1: 131,796 km (0.058 R)
• M2: 479,760 km (0.078 R)
• M3: 923,318 km (0.083 R)
• M4: 1,541,756 km (0.052 R)
• M5: 2,649,079 km (0.041 R)
• M6: 3,154,421 km (0.104 R)
• M7: 3,939,810 km (0.108 R)
• M8: 5,131,955 km (0.106 R)
• M9: 7,140,456 km (0.055 R)
• M10: 7,707,881 km (0.065 R)
• M11: 8,213,521 km (0.101 R)
• M12: 9,094,503 km (0.098 R)
• M13: 9,693,344 km (0.092 R)
• M14: 11,610,440 km (0.063 R)
• M15: 12,275,552 km (0.057 R)
• M16: 12,883,369 km (0.055 R)
• M17: 13,426,259 km (0.107 R)
• M18: 13,854,259 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.3

Radius: 14.6

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 3.09 AU - 3.67 AU

Year: 4076 Days

Day: 13.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,360,584 km

• M1: 191,186 km (0.04 R)
• M2: 681,418 km (0.119 R)
• M3: 1,237,025 km (0.092 R)
• M4: 2,217,040 km (0.063 R)
• M5: 3,203,489 km (0.063 R)
• M6: 4,815,855 km (0.084 R)
• M7: 5,571,773 km (0.073 R)
• M8: 6,159,244 km (0.108 R)
• M9: 7,051,445 km (0.037 R)
• M10: 9,952,447 km (0.108 R)
• M11: 10,731,553 km (0.098 R)
• M12: 11,227,320 km (0.069 R)
• M13: 12,023,929 km (0.083 R)
• M14: 13,887,918 km (0.077 R)
• M15: 15,195,853 km (0.065 R)
• M16: 16,288,366 km (0.108 R)
• M17: 17,126,563 km (0.093 R)
• M18: 20,016,345 km (0.059 R)
• M19: 20,838,983 km (0.05 R)
• M20: 26,663,726 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.1

Radius: 13.6

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 2.84 AU - 4.46 AU

Year: 4575 Days

Day: 11.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,360,584 km

• M1: 169,195 km (0.114 R)
• M2: 644,318 km (0.12 R)
• M3: 1,073,514 km (0.091 R)
• M4: 2,087,040 km (0.117 R)
• M5: 4,387,706 km (0.074 R)
• M6: 6,297,771 km (0.061 R)
• M7: 7,301,124 km (0.062 R)
• M8: 7,859,423 km (0.103 R)
• M9: 9,220,315 km (0.096 R)
• M10: 16,320,230 km (0.041 R)
• M11: 18,589,331 km (0.112 R)
• M12: 19,302,613 km (0.08 R)
• M13: 20,034,147 km (0.043 R)
• M14: 22,558,312 km (0.07 R)
• M15: 24,354,683 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 175.1

Radius: 4.6

Gravity: 8.28 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 6.2 AU - 6.24 AU

Year: 10176 Days

Day: 15.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,360,584 km

• M1: 57,146 km (0.104 R)
• M2: 202,855 km (0.099 R)
• M3: 461,061 km (0.074 R)
• M4: 753,524 km (0.098 R)
• M5: 1,286,093 km (0.105 R)
• M6: 1,613,263 km (0.075 R)
• M7: 1,837,810 km (0.097 R)
• M8: 2,097,961 km (0.116 R)
• M9: 2,969,967 km (0.077 R)
• M10: 3,649,290 km (0.076 R)
• M11: 5,657,043 km (0.067 R)
• M12: 5,866,929 km (0.084 R)
• M13: 6,302,558 km (0.108 R)
• M14: 9,050,671 km (0.08 R)
• M15: 20,356,231 km (0.026 R)
• M16: 20,566,715 km (0.085 R)
• M17: 22,526,747 km (0.033 R)
• M18: 22,676,793 km (0.116 R)
• M19: 23,130,673 km (0.039 R)
• M20: 23,590,537 km (0.068 R)
• M21: 25,087,264 km (0.089 R)
• M22: 29,415,429 km (0.114 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.45 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 456.6

Radius: 7

Gravity: 9.32 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 8.75 AU - 10.15 AU

Year: 19057 Days

Day: 20.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 64,360,584 km

• M1: 87,515 km (0.119 R)
• M2: 370,554 km (0.052 R)
• M3: 942,616 km (0.079 R)
• M4: 1,178,083 km (0.049 R)
• M5: 1,687,314 km (0.082 R)
• M6: 3,726,483 km (0.102 R)
• M7: 4,108,706 km (0.1 R)
• M8: 4,848,916 km (0.1 R)
• M9: 5,304,890 km (0.115 R)
• M10: 8,218,009 km (0.087 R)
• M11: 14,179,485 km (0.078 R)
• M12: 17,094,399 km (0.079 R)
• M13: 17,333,905 km (0.096 R)
• M14: 17,656,887 km (0.045 R)
• M15: 18,818,515 km (0.081 R)
• M16: 20,745,784 km (0.099 R)
• M17: 22,897,450 km (0.116 R)
• M18: 23,778,432 km (0.032 R)
• M19: 25,090,555 km (0.116 R)
• M20: 25,607,864 km (0.076 R)
• M21: 26,770,838 km (0.045 R)
• M22: 28,301,524 km (0.075 R)
• M23: 34,625,624 km (0.09 R)
• M24: 39,559,063 km (0.112 R)
• M25: 40,400,850 km (0.061 R)
• M26: 44,789,752 km (0.092 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 14,933 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit