🌌 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: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.7

Radius: 10.1

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.44 AU - 0.6 AU

Year: 250 Days

Day: 13.6 Hours

Environment

Temp: -145 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 49,996,473 km

• M1: 125,662 km (0.098 R)
• M2: 623,075 km (0.107 R)
• M3: 961,316 km (0.05 R)
• M4: 1,370,466 km (0.1 R)
• M5: 1,860,998 km (0.103 R)
• M6: 2,276,880 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.7

Radius: 13

Gravity: 4.15 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.75 AU - 1.05 AU

Year: 569 Days

Day: 13.1 Hours

Environment

Temp: -169 °C

Axial Tilt: 77.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,996,473 km

• M1: 161,715 km (0.107 R)
• M2: 643,420 km (0.107 R)
• M3: 1,214,136 km (0.103 R)
• M4: 1,619,247 km (0.111 R)
• M5: 2,254,440 km (0.099 R)
• M6: 2,663,291 km (0.095 R)
• M7: 3,555,792 km (0.11 R)
• M8: 4,201,755 km (0.118 R)
• M9: 5,155,891 km (0.116 R)
• M10: 5,586,583 km (0.075 R)
• M11: 6,116,608 km (0.114 R)
• M12: 7,005,519 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.4

Radius: 11

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.93 AU - 1.09 AU

Year: 677 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,996,473 km

• M1: 137,480 km (0.116 R)
• M2: 545,733 km (0.099 R)
• M3: 897,138 km (0.087 R)
• M4: 1,350,570 km (0.098 R)
• M5: 1,963,771 km (0.081 R)
• M6: 4,025,529 km (0.094 R)
• M7: 5,217,824 km (0.069 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 298.8

Radius: 8.3

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.83 AU - 1.25 AU

Year: 707 Days

Day: 12.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,996,473 km

• M1: 103,223 km (0.092 R)
• M2: 376,687 km (0.07 R)
• M3: 831,315 km (0.076 R)
• M4: 1,532,331 km (0.05 R)
• M5: 2,051,136 km (0.089 R)
• M6: 2,491,403 km (0.062 R)
• M7: 3,152,027 km (0.105 R)
• M8: 3,844,665 km (0.1 R)
• M9: 5,005,096 km (0.051 R)
• M10: 5,717,780 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.7

Radius: 11.9

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.2 AU - 1.54 AU

Year: 1069 Days

Day: 12.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,996,473 km

• M1: 147,952 km (0.102 R)
• M2: 524,640 km (0.079 R)
• M3: 989,740 km (0.091 R)
• M4: 1,567,187 km (0.112 R)
• M5: 3,295,641 km (0.116 R)
• M6: 3,861,420 km (0.063 R)
• M7: 4,460,560 km (0.11 R)
• M8: 5,120,885 km (0.11 R)
• M9: 5,501,462 km (0.06 R)
• M10: 6,108,081 km (0.076 R)
• M11: 6,576,921 km (0.091 R)
• M12: 7,154,069 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254

Radius: 8.8

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 3.46 AU - 4.3 AU

Year: 5097 Days

Day: 11.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,996,473 km

• M1: 111,151 km (0.116 R)
• M2: 419,323 km (0.119 R)
• M3: 693,835 km (0.083 R)
• M4: 1,207,853 km (0.074 R)
• M5: 1,508,695 km (0.086 R)
• M6: 1,909,018 km (0.094 R)
• M7: 2,619,010 km (0.095 R)
• M8: 3,060,922 km (0.067 R)
• M9: 3,532,903 km (0.091 R)
• M10: 7,672,725 km (0.108 R)
• M11: 8,544,582 km (0.08 R)
• M12: 9,935,543 km (0.088 R)
• M13: 10,325,544 km (0.101 R)
• M14: 12,119,671 km (0.08 R)
• M15: 14,063,696 km (0.092 R)
• M16: 14,555,574 km (0.104 R)
• M17: 14,856,116 km (0.103 R)
• M18: 15,678,156 km (0.051 R)
• M19: 17,188,945 km (0.086 R)
• M20: 17,637,888 km (0.074 R)
• M21: 17,922,423 km (0.112 R)
• M22: 21,258,306 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 385

Radius: 10.1

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.7 AU - 5.04 AU

Year: 6092 Days

Day: 5.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 49,996,473 km

• M1: 125,662 km (0.114 R)
• M2: 488,287 km (0.112 R)
• M3: 815,907 km (0.089 R)
• M4: 1,133,503 km (0.097 R)
• M5: 2,344,498 km (0.087 R)
• M6: 2,862,406 km (0.076 R)
• M7: 3,621,016 km (0.102 R)
• M8: 4,197,417 km (0.069 R)
• M9: 4,808,524 km (0.093 R)
• M10: 9,222,110 km (0.114 R)
• M11: 11,687,034 km (0.108 R)
• M12: 15,615,923 km (0.086 R)
• M13: 16,959,761 km (0.103 R)
• M14: 19,543,765 km (0.051 R)
• M15: 20,009,762 km (0.09 R)
• M16: 21,242,150 km (0.081 R)
• M17: 22,963,273 km (0.106 R)
• M18: 23,782,321 km (0.095 R)
• M19: 24,466,881 km (0.11 R)
• M20: 26,356,602 km (0.11 R)
• M21: 27,007,652 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.3

Radius: 10.4

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 4.75 AU - 5.67 AU

Year: 7930 Days

Day: 6.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 49,996,473 km

• M1: 130,898 km (0.103 R)
• M2: 455,077 km (0.106 R)
• M3: 1,014,423 km (0.063 R)
• M4: 2,028,547 km (0.052 R)
• M5: 2,434,406 km (0.106 R)
• M6: 2,822,463 km (0.085 R)
• M7: 3,575,988 km (0.076 R)
• M8: 5,882,637 km (0.081 R)
• M9: 6,429,268 km (0.059 R)
• M10: 7,694,716 km (0.078 R)
• M11: 11,251,555 km (0.109 R)
• M12: 11,715,009 km (0.099 R)
• M13: 12,142,859 km (0.097 R)
• M14: 12,779,249 km (0.098 R)
• M15: 13,489,390 km (0.106 R)
• M16: 14,603,744 km (0.118 R)
• M17: 15,436,406 km (0.098 R)
• M18: 15,893,278 km (0.114 R)
• M19: 16,655,030 km (0.085 R)
• M20: 17,625,771 km (0.071 R)
• M21: 19,414,512 km (0.091 R)
• M22: 28,293,296 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 337.6

Radius: 7.6

Gravity: 5.84 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 6.5 AU - 9.56 AU

Year: 15174 Days

Day: 19.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,996,473 km

• M1: 352,901 km (0.111 R)
• M2: 931,696 km (0.106 R)
• M3: 2,161,540 km (0.106 R)
• M4: 2,403,439 km (0.025 R)
• M5: 4,145,656 km (0.094 R)
• M6: 4,491,975 km (0.069 R)
• M7: 5,015,418 km (0.084 R)
• M8: 5,341,841 km (0.097 R)
• M9: 5,647,768 km (0.103 R)
• M10: 6,220,579 km (0.106 R)
• M11: 8,351,750 km (0.112 R)
• M12: 17,955,036 km (0.094 R)
• M13: 23,233,297 km (0.09 R)
• M14: 23,593,828 km (0.065 R)
• M15: 39,333,918 km (0.106 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 203 - 12,548 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit