🌌 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: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 438.9

Radius: 9.4

Gravity: 4.97 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.94 AU - 1.06 AU

Year: 656 Days

Day: 6.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,539,647 km

• M1: 116,836 km (0.077 R)
• M2: 417,378 km (0.047 R)
• M3: 870,360 km (0.033 R)
• M4: 1,339,948 km (0.116 R)
• M5: 1,930,710 km (0.046 R)
• M6: 2,571,737 km (0.078 R)
• M7: 3,073,787 km (0.088 R)
• M8: 3,907,048 km (0.069 R)
• M9: 4,571,861 km (0.106 R)
• M10: 4,979,964 km (0.053 R)
• M11: 5,310,276 km (0.103 R)
• M12: 5,620,093 km (0.098 R)
• M13: 6,276,229 km (0.112 R)

Asteroid Belt

Center: 1.31 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 2 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.3

Radius: 9.7

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.27 AU - 1.97 AU

Year: 1353 Days

Day: 9.7 Hours

Environment

Temp: -189 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,539,647 km

• M1: 120,725 km (0.07 R)
• M2: 592,856 km (0.107 R)
• M3: 975,827 km (0.095 R)
• M4: 1,394,103 km (0.085 R)
• M5: 1,749,098 km (0.097 R)
• M6: 2,094,370 km (0.113 R)
• M7: 2,507,709 km (0.07 R)
• M8: 3,026,215 km (0.104 R)
• M9: 3,975,563 km (0.109 R)
• M10: 5,020,355 km (0.029 R)
• M11: 5,765,502 km (0.068 R)
• M12: 6,782,019 km (0.05 R)
• M13: 7,122,953 km (0.065 R)
• M14: 7,547,213 km (0.092 R)
• M15: 7,864,061 km (0.078 R)
• M16: 8,498,505 km (0.077 R)
• M17: 9,139,233 km (0.085 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 318.8

Radius: 15

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 1.38 AU - 1.88 AU

Year: 1365 Days

Day: 8.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,539,647 km

• M1: 186,549 km (0.101 R)
• M2: 671,994 km (0.114 R)
• M3: 1,209,050 km (0.108 R)
• M4: 1,682,677 km (0.11 R)
• M5: 2,283,911 km (0.053 R)
• M6: 2,803,314 km (0.097 R)
• M7: 3,278,437 km (0.086 R)
• M8: 3,838,083 km (0.074 R)
• M9: 4,771,574 km (0.081 R)
• M10: 5,436,237 km (0.077 R)
• M11: 6,016,078 km (0.063 R)
• M12: 8,134,983 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 358.6

Radius: 10.4

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.8 AU - 1.82 AU

Year: 1597 Days

Day: 9.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,539,647 km

• M1: 129,402 km (0.115 R)
• M2: 771,027 km (0.087 R)
• M3: 1,181,524 km (0.064 R)
• M4: 1,728,603 km (0.099 R)
• M5: 2,334,624 km (0.091 R)
• M6: 3,260,186 km (0.071 R)
• M7: 3,969,579 km (0.073 R)
• M8: 4,835,153 km (0.109 R)
• M9: 5,444,764 km (0.069 R)
• M10: 5,951,302 km (0.096 R)
• M11: 7,306,210 km (0.12 R)
• M12: 9,678,683 km (0.116 R)
• M13: 10,015,278 km (0.112 R)
• M14: 10,647,479 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.4

Radius: 13

Gravity: 5.91 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 2.23 AU - 2.61 AU

Year: 2470 Days

Day: 7.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,539,647 km

• M1: 161,715 km (0.027 R)
• M2: 653,144 km (0.069 R)
• M3: 1,079,797 km (0.116 R)
• M4: 1,873,265 km (0.109 R)
• M5: 2,895,916 km (0.096 R)
• M6: 3,542,029 km (0.108 R)
• M7: 4,679,122 km (0.051 R)
• M8: 5,221,564 km (0.094 R)
• M9: 5,992,143 km (0.093 R)
• M10: 7,632,633 km (0.042 R)
• M11: 9,518,314 km (0.103 R)
• M12: 10,275,579 km (0.119 R)
• M13: 17,349,164 km (0.053 R)
• M14: 21,075,498 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.1

Radius: 8.8

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.34 AU - 3.82 AU

Year: 3546 Days

Day: 11.7 Hours

Environment

Temp: -205 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,539,647 km

• M1: 109,655 km (0.1 R)
• M2: 403,914 km (0.069 R)
• M3: 890,556 km (0.103 R)
• M4: 1,215,782 km (0.068 R)
• M5: 1,702,424 km (0.029 R)
• M6: 2,005,060 km (0.067 R)
• M7: 2,299,469 km (0.099 R)
• M8: 2,606,743 km (0.099 R)
• M9: 2,976,549 km (0.101 R)
• M10: 3,267,367 km (0.108 R)
• M11: 4,013,561 km (0.116 R)
• M12: 4,650,399 km (0.081 R)
• M13: 5,432,347 km (0.057 R)
• M14: 6,628,083 km (0.064 R)
• M15: 7,287,959 km (0.108 R)
• M16: 9,338,049 km (0.116 R)
• M17: 10,704,176 km (0.047 R)
• M18: 11,656,367 km (0.071 R)
• M19: 12,948,444 km (0.089 R)
• M20: 15,814,888 km (0.064 R)
• M21: 19,769,059 km (0.066 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 645.2

Radius: 12.5

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 2.63 AU - 3.93 AU

Year: 3897 Days

Day: 14.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,539,647 km

• M1: 167,250 km (0.105 R)
• M2: 598,391 km (0.099 R)
• M3: 1,010,683 km (0.041 R)
• M4: 1,988,006 km (0.108 R)
• M5: 2,628,135 km (0.106 R)
• M6: 3,843,319 km (0.1 R)
• M7: 5,016,166 km (0.108 R)
• M8: 6,840,363 km (0.051 R)
• M9: 8,092,796 km (0.093 R)
• M10: 9,109,613 km (0.053 R)
• M11: 10,919,597 km (0.086 R)
• M12: 11,308,552 km (0.119 R)
• M13: 11,977,554 km (0.113 R)
• M14: 12,484,840 km (0.03 R)
• M15: 13,841,094 km (0.107 R)
• M16: 15,671,723 km (0.051 R)
• M17: 17,658,682 km (0.101 R)
• M18: 18,075,462 km (0.079 R)
• M19: 19,365,145 km (0.112 R)
• M20: 20,388,395 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.6

Radius: 8.6

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.64 AU - 4.22 AU

Year: 4167 Days

Day: 8.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 37,539,647 km

• M1: 106,962 km (0.114 R)
• M2: 419,323 km (0.112 R)
• M3: 745,147 km (0.077 R)
• M4: 1,106,276 km (0.098 R)
• M5: 1,553,125 km (0.104 R)
• M6: 2,092,126 km (0.076 R)
• M7: 2,750,656 km (0.078 R)
• M8: 3,505,826 km (0.034 R)
• M9: 3,792,456 km (0.089 R)
• M10: 4,812,564 km (0.103 R)
• M11: 5,258,964 km (0.053 R)
• M12: 6,106,585 km (0.116 R)
• M13: 6,443,779 km (0.118 R)
• M14: 6,738,636 km (0.093 R)
• M15: 8,132,589 km (0.107 R)
• M16: 8,445,697 km (0.116 R)
• M17: 8,831,959 km (0.112 R)
• M18: 9,639,937 km (0.064 R)
• M19: 12,278,245 km (0.066 R)
• M20: 12,690,836 km (0.103 R)
• M21: 13,283,992 km (0.088 R)
• M22: 15,033,688 km (0.108 R)
• M23: 16,134,878 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 997.1

Radius: 3.3

Gravity: 91.56 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.51 AU - 7.61 AU

Year: 13636 Days

Day: 20.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 37,539,647 km

• M1: 41,588 km (0.036 R)
• M2: 191,186 km (0.034 R)
• M3: 352,004 km (0.107 R)
• M4: 456,872 km (0.116 R)
• M5: 832,363 km (0.071 R)
• M6: 963,859 km (0.103 R)
• M7: 1,297,462 km (0.059 R)
• M8: 2,550,943 km (0.094 R)
• M9: 2,927,930 km (0.115 R)
• M10: 3,675,470 km (0.107 R)
• M11: 5,689,207 km (0.051 R)
• M12: 6,165,078 km (0.098 R)
• M13: 6,539,073 km (0.11 R)
• M14: 11,087,596 km (0.072 R)
• M15: 11,269,656 km (0.086 R)
• M16: 11,639,911 km (0.054 R)
• M17: 14,533,284 km (0.081 R)
• M18: 19,321,463 km (0.11 R)
• M19: 20,481,444 km (0.069 R)
• M20: 23,334,276 km (0.117 R)
• M21: 25,166,999 km (0.06 R)
• M22: 25,481,454 km (0.103 R)
• M23: 25,586,921 km (0.092 R)
• M24: 26,225,554 km (0.057 R)
• M25: 26,440,676 km (0.115 R)
• M26: 26,765,752 km (0.026 R)
• M27: 30,996,230 km (0.041 R)
• M28: 31,478,683 km (0.072 R)
• M29: 35,519,621 km (0.113 R)
• M30: 35,783,063 km (0.094 R)
• M31: 37,391,240 km (0.102 R)
• M32: 38,628,414 km (0.083 R)
• M33: 40,320,217 km (0.091 R)
• M34: 48,223,322 km (0.116 R)
• M35: 52,535,780 km (0.049 R)
• M36: 56,379,698 km (0.064 R)
• M37: 62,682,106 km (0.069 R)
• M38: 66,600,074 km (0.089 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 149.9

Radius: 5.5

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 7.74 AU - 8.24 AU

Year: 14816 Days

Day: 24.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 37,539,647 km

• M1: 68,665 km (0.071 R)
• M2: 313,408 km (0.113 R)
• M3: 873,502 km (0.092 R)
• M4: 1,184,666 km (0.031 R)
• M5: 1,477,129 km (0.115 R)
• M6: 4,084,321 km (0.115 R)
• M7: 4,780,400 km (0.096 R)
• M8: 5,459,724 km (0.114 R)
• M9: 6,100,900 km (0.087 R)
• M10: 9,172,743 km (0.039 R)
• M11: 10,264,209 km (0.081 R)
• M12: 11,490,463 km (0.095 R)
• M13: 11,850,545 km (0.106 R)
• M14: 17,242,052 km (0.062 R)
• M15: 21,962,015 km (0.111 R)
• M16: 24,489,022 km (0.095 R)
• M17: 35,987,713 km (0.066 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: 385 - 14,413 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit