🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311.5

Radius: 10.8

Gravity: 2.67 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.73 AU - 1.05 AU

Year: 569 Days

Day: 8.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 65,771,273 km

• M1: 134,788 km (0.041 R)
• M2: 482,603 km (0.107 R)
• M3: 1,029,383 km (0.084 R)
• M4: 1,427,313 km (0.113 R)
• M5: 2,055,176 km (0.092 R)
• M6: 2,592,382 km (0.084 R)
• M7: 3,460,498 km (0.107 R)
• M8: 3,810,557 km (0.088 R)
• M9: 4,596,843 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 473.7

Radius: 11.2

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.58 AU - 1.86 AU

Year: 1530 Days

Day: 9.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,771,273 km

• M1: 139,425 km (0.105 R)
• M2: 589,864 km (0.105 R)
• M3: 1,646,474 km (0.087 R)
• M4: 2,037,224 km (0.039 R)
• M5: 2,502,174 km (0.086 R)
• M6: 3,051,497 km (0.119 R)
• M7: 3,858,428 km (0.104 R)
• M8: 4,429,294 km (0.067 R)
• M9: 5,256,869 km (0.075 R)
• M10: 5,632,659 km (0.095 R)
• M11: 6,345,493 km (0.05 R)
• M12: 7,422,598 km (0.095 R)
• M13: 8,877,138 km (0.113 R)
• M14: 10,063,000 km (0.073 R)
• M15: 11,455,008 km (0.093 R)
• M16: 11,910,833 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 594.9

Radius: 12.1

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.45 AU - 3.31 AU

Year: 3315 Days

Day: 7.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,771,273 km

• M1: 151,842 km (0.092 R)
• M2: 612,902 km (0.108 R)
• M3: 997,967 km (0.109 R)
• M4: 1,421,180 km (0.089 R)
• M5: 1,832,275 km (0.108 R)
• M6: 2,240,378 km (0.086 R)
• M7: 2,773,096 km (0.101 R)
• M8: 3,209,323 km (0.08 R)
• M9: 3,909,740 km (0.101 R)
• M10: 5,360,241 km (0.111 R)
• M11: 7,081,664 km (0.084 R)
• M12: 8,406,353 km (0.101 R)
• M13: 10,159,640 km (0.11 R)
• M14: 11,498,840 km (0.106 R)
• M15: 12,145,103 km (0.058 R)
• M16: 12,769,973 km (0.07 R)
• M17: 13,699,874 km (0.03 R)
• M18: 14,132,660 km (0.094 R)
• M19: 15,903,899 km (0.079 R)
• M20: 17,200,913 km (0.116 R)
• M21: 18,450,803 km (0.09 R)
• M22: 19,397,309 km (0.105 R)
• M23: 21,515,465 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.1

Radius: 12.8

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 3.87 AU - 4.19 AU

Year: 5487 Days

Day: 12.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 65,771,273 km

• M1: 177,423 km (0.096 R)
• M2: 753,524 km (0.1 R)
• M3: 1,678,189 km (0.114 R)
• M4: 2,337,317 km (0.069 R)
• M5: 2,815,432 km (0.104 R)
• M6: 3,603,962 km (0.09 R)
• M7: 4,062,181 km (0.116 R)
• M8: 5,123,877 km (0.099 R)
• M9: 5,792,430 km (0.085 R)
• M10: 7,169,029 km (0.077 R)
• M11: 8,152,336 km (0.099 R)
• M12: 8,562,533 km (0.104 R)
• M13: 9,065,033 km (0.118 R)
• M14: 9,587,129 km (0.112 R)
• M15: 10,343,346 km (0.065 R)
• M16: 10,824,752 km (0.106 R)
• M17: 14,571,132 km (0.083 R)
• M18: 16,262,785 km (0.112 R)
• M19: 16,854,893 km (0.066 R)
• M20: 17,831,917 km (0.077 R)
• M21: 21,550,770 km (0.092 R)
• M22: 24,350,494 km (0.114 R)
• M23: 25,837,497 km (0.102 R)
• M24: 26,889,320 km (0.049 R)
• M25: 27,467,366 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.8

Radius: 11.5

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.63 AU - 5.09 AU

Year: 6175 Days

Day: 13.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 65,771,273 km

• M1: 143,165 km (0.117 R)
• M2: 660,923 km (0.11 R)
• M3: 1,036,414 km (0.075 R)
• M4: 1,784,254 km (0.108 R)
• M5: 4,048,717 km (0.078 R)
• M6: 4,687,649 km (0.101 R)
• M7: 6,135,757 km (0.116 R)
• M8: 7,048,004 km (0.094 R)
• M9: 14,738,083 km (0.064 R)
• M10: 16,308,861 km (0.034 R)
• M11: 16,672,533 km (0.051 R)
• M12: 19,575,779 km (0.035 R)
• M13: 21,326,672 km (0.077 R)
• M14: 23,255,737 km (0.106 R)
• M15: 24,657,768 km (0.093 R)
• M16: 27,287,998 km (0.092 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 249.4

Radius: 7.5

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.11 AU - 7.23 AU

Year: 10395 Days

Day: 16.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,771,273 km

• M1: 95,443 km (0.077 R)
• M2: 451,187 km (0.053 R)
• M3: 1,136,794 km (0.036 R)
• M4: 1,647,222 km (0.107 R)
• M5: 3,436,562 km (0.103 R)
• M6: 4,290,617 km (0.081 R)
• M7: 4,524,588 km (0.111 R)
• M8: 5,191,046 km (0.052 R)
• M9: 6,580,362 km (0.064 R)
• M10: 7,773,554 km (0.066 R)
• M11: 8,852,155 km (0.064 R)
• M12: 10,818,469 km (0.102 R)
• M13: 12,211,525 km (0.116 R)
• M14: 12,843,576 km (0.074 R)
• M15: 13,113,301 km (0.078 R)
• M16: 19,266,111 km (0.077 R)
• M17: 24,456,110 km (0.113 R)
• M18: 25,121,970 km (0.092 R)
• M19: 25,629,406 km (0.059 R)
• M20: 25,971,387 km (0.12 R)
• M21: 26,664,474 km (0.094 R)
• M22: 28,910,088 km (0.075 R)
• M23: 33,163,155 km (0.097 R)

Asteroid Belt

Center: 6.82 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 7.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 922.9

Radius: 3.8

Gravity: 63.91 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 7.43 AU - 7.51 AU

Year: 13848 Days

Day: 21.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 65,771,273 km

• M1: 48,619 km (0.076 R)
• M2: 169,494 km (0.117 R)
• M3: 292,015 km (0.081 R)
• M4: 549,772 km (0.08 R)
• M5: 1,521,111 km (0.101 R)
• M6: 2,005,210 km (0.082 R)
• M7: 2,282,714 km (0.071 R)
• M8: 2,676,306 km (0.111 R)
• M9: 3,296,090 km (0.111 R)
• M10: 3,682,202 km (0.103 R)
• M11: 4,316,946 km (0.106 R)
• M12: 4,744,796 km (0.087 R)
• M13: 5,309,378 km (0.111 R)
• M14: 5,684,121 km (0.076 R)
• M15: 6,116,608 km (0.069 R)
• M16: 6,320,211 km (0.101 R)
• M17: 7,685,291 km (0.104 R)
• M18: 9,129,509 km (0.064 R)
• M19: 11,101,808 km (0.093 R)
• M20: 11,775,896 km (0.112 R)
• M21: 12,870,802 km (0.12 R)
• M22: 14,102,142 km (0.12 R)
• M23: 18,347,730 km (0.102 R)
• M24: 23,471,308 km (0.047 R)
• M25: 27,223,671 km (0.102 R)
• M26: 27,553,385 km (0.087 R)
• M27: 28,784,725 km (0.099 R)
• M28: 33,446,194 km (0.064 R)
• M29: 34,975,683 km (0.109 R)
• M30: 37,086,659 km (0.077 R)
• M31: 43,326,685 km (0.117 R)
• M32: 44,379,854 km (0.074 R)
• M33: 46,693,684 km (0.088 R)
• M34: 48,924,787 km (0.06 R)
• M35: 57,833,041 km (0.111 R)
• M36: 58,925,554 km (0.113 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 452 - 15,667 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit