🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.7

Radius: 14.2

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.42 AU - 0.6 AU

Year: 247 Days

Day: 11.7 Hours

Environment

Temp: -141 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 77,819,950 km

• M1: 176,525 km (0.109 R)
• M2: 772,523 km (0.111 R)
• M3: 1,505,403 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 600.6

Radius: 9.7

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.48 AU - 0.58 AU

Year: 262 Days

Day: 12.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 77,819,950 km

• M1: 120,576 km (0.037 R)
• M2: 450,290 km (0.114 R)
• M3: 922,271 km (0.059 R)
• M4: 1,238,371 km (0.077 R)
• M5: 1,554,621 km (0.103 R)
• M6: 1,890,917 km (0.103 R)
• M7: 2,396,558 km (0.084 R)
• M8: 2,704,131 km (0.114 R)
• M9: 3,047,907 km (0.119 R)
• M10: 3,690,280 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.5

Radius: 8

Gravity: 8.24 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.53 AU - 0.67 AU

Year: 315 Days

Day: 7.2 Hours

Environment

Temp: -145 °C

Axial Tilt: 42.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,819,950 km

• M1: 99,483 km (0.072 R)
• M2: 471,981 km (0.116 R)
• M3: 793,018 km (0.113 R)
• M4: 1,048,382 km (0.07 R)
• M5: 1,399,787 km (0.096 R)
• M6: 1,786,947 km (0.093 R)
• M7: 2,326,396 km (0.042 R)
• M8: 2,843,856 km (0.116 R)
• M9: 3,150,681 km (0.118 R)
• M10: 3,808,014 km (0.086 R)
• M11: 4,169,293 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437

Radius: 9.6

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.58 AU - 0.64 AU

Year: 323 Days

Day: 15 Hours

Environment

Temp: -155 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,819,950 km

• M1: 121,025 km (0.061 R)
• M2: 621,729 km (0.109 R)
• M3: 1,185,414 km (0.069 R)
• M4: 1,520,363 km (0.119 R)
• M5: 1,835,117 km (0.096 R)
• M6: 2,369,929 km (0.101 R)
• M7: 2,909,679 km (0.114 R)
• M8: 3,214,409 km (0.089 R)
• M9: 3,877,128 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.5

Radius: 9.5

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 0.83 AU - 1.09 AU

Year: 638 Days

Day: 14.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 44.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,819,950 km

• M1: 118,182 km (0.03 R)
• M2: 445,502 km (0.08 R)
• M3: 819,198 km (0.037 R)
• M4: 1,159,084 km (0.113 R)
• M5: 1,467,854 km (0.119 R)
• M6: 1,901,389 km (0.042 R)
• M7: 2,409,723 km (0.092 R)
• M8: 3,375,227 km (0.092 R)
• M9: 3,736,356 km (0.109 R)
• M10: 4,299,144 km (0.099 R)
• M11: 4,783,242 km (0.114 R)
• M12: 5,240,264 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.5

Radius: 9.1

Gravity: 6.84 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 1.35 AU - 1.65 AU

Year: 1246 Days

Day: 9.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,819,950 km

• M1: 115,190 km (0.107 R)
• M2: 413,189 km (0.058 R)
• M3: 895,942 km (0.069 R)
• M4: 1,187,657 km (0.029 R)
• M5: 1,805,048 km (0.12 R)
• M6: 2,337,616 km (0.095 R)
• M7: 3,622,213 km (0.1 R)
• M8: 3,924,251 km (0.073 R)
• M9: 4,894,992 km (0.058 R)
• M10: 5,717,182 km (0.11 R)
• M11: 6,558,670 km (0.1 R)
• M12: 7,633,531 km (0.059 R)
• M13: 9,400,880 km (0.112 R)
• M14: 10,764,016 km (0.112 R)
• M15: 11,224,179 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 455.1

Radius: 10.1

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 3.16 AU - 4.78 AU

Year: 5365 Days

Day: 14.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,819,950 km

• M1: 125,812 km (0.117 R)
• M2: 691,142 km (0.119 R)
• M3: 1,187,059 km (0.108 R)
• M4: 1,718,880 km (0.12 R)
• M5: 2,907,435 km (0.107 R)
• M6: 3,281,280 km (0.095 R)
• M7: 3,990,972 km (0.076 R)
• M8: 4,478,362 km (0.081 R)
• M9: 5,887,125 km (0.07 R)
• M10: 6,551,340 km (0.118 R)
• M11: 12,872,298 km (0.119 R)
• M12: 19,570,693 km (0.05 R)
• M13: 25,999,063 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 556.5

Radius: 3.5

Gravity: 45.43 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.12 AU - 6.7 AU

Year: 11007 Days

Day: 19.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 77,819,950 km

• M1: 44,131 km (0.044 R)
• M2: 155,582 km (0.105 R)
• M3: 325,974 km (0.11 R)
• M4: 861,684 km (0.103 R)
• M5: 1,134,700 km (0.103 R)
• M6: 2,719,839 km (0.079 R)
• M7: 4,650,250 km (0.061 R)
• M8: 6,288,646 km (0.116 R)
• M9: 7,055,634 km (0.118 R)
• M10: 7,379,214 km (0.07 R)
• M11: 11,842,018 km (0.119 R)
• M12: 12,356,635 km (0.113 R)
• M13: 13,614,902 km (0.107 R)
• M14: 19,269,103 km (0.119 R)
• M15: 19,504,271 km (0.084 R)
• M16: 23,799,226 km (0.114 R)
• M17: 24,893,983 km (0.115 R)
• M18: 25,926,657 km (0.077 R)
• M19: 26,501,861 km (0.076 R)
• M20: 26,987,605 km (0.114 R)
• M21: 28,177,657 km (0.115 R)
• M22: 28,582,020 km (0.057 R)
• M23: 29,818,147 km (0.072 R)
• M24: 30,875,056 km (0.083 R)
• M25: 33,063,523 km (0.085 R)
• M26: 33,739,705 km (0.108 R)
• M27: 34,540,054 km (0.069 R)
• M28: 37,624,014 km (0.082 R)
• M29: 38,360,933 km (0.073 R)
• M30: 39,610,375 km (0.052 R)
• M31: 40,500,781 km (0.087 R)
• M32: 43,252,484 km (0.107 R)
• M33: 44,468,865 km (0.081 R)
• M34: 47,680,881 km (0.088 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529

Radius: 5.8

Gravity: 15.73 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 10.12 AU - 11.16 AU

Year: 23540 Days

Day: 18.6 Hours

Environment

Temp: -240 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 77,819,950 km

• M1: 72,106 km (0.096 R)
• M2: 290,070 km (0.068 R)
• M3: 496,067 km (0.091 R)
• M4: 1,042,996 km (0.097 R)
• M5: 1,301,501 km (0.079 R)
• M6: 1,551,928 km (0.109 R)
• M7: 2,213,600 km (0.063 R)
• M8: 4,936,879 km (0.11 R)
• M9: 6,427,772 km (0.033 R)
• M10: 6,740,282 km (0.12 R)
• M11: 7,838,928 km (0.112 R)
• M12: 8,092,796 km (0.106 R)
• M13: 8,404,558 km (0.035 R)
• M14: 10,691,760 km (0.059 R)
• M15: 12,936,925 km (0.041 R)
• M16: 16,449,333 km (0.085 R)
• M17: 18,156,993 km (0.077 R)
• M18: 19,698,449 km (0.111 R)
• M19: 20,741,146 km (0.079 R)
• M20: 26,511,735 km (0.095 R)
• M21: 38,259,506 km (0.086 R)
• M22: 49,869,946 km (0.119 R)
• M23: 69,073,675 km (0.079 R)
• M24: 74,599,970 km (0.09 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: 350 - 11,502 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit