🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 117.1

Radius: 9

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.83 AU - 0.85 AU

Year: 489 Days

Day: 11.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 14,841,872 km

• M1: 112,797 km (0.106 R)
• M2: 403,615 km (0.05 R)
• M3: 763,996 km (0.087 R)
• M4: 1,215,333 km (0.111 R)
• M5: 1,601,744 km (0.054 R)
• M6: 1,923,978 km (0.04 R)
• M7: 2,320,263 km (0.11 R)
• M8: 2,966,526 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.4

Radius: 10.8

Gravity: 6.16 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.75 AU - 1.23 AU

Year: 626 Days

Day: 5.2 Hours

Environment

Temp: -153 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,841,872 km

• M1: 134,339 km (0.031 R)
• M2: 486,343 km (0.116 R)
• M3: 943,065 km (0.117 R)
• M4: 1,369,419 km (0.077 R)
• M5: 1,780,663 km (0.058 R)
• M6: 2,313,681 km (0.067 R)
• M7: 3,267,217 km (0.043 R)
• M8: 4,356,140 km (0.112 R)
• M9: 4,950,792 km (0.085 R)
• M10: 5,347,226 km (0.089 R)
• M11: 6,223,720 km (0.112 R)
• M12: 6,604,148 km (0.053 R)
• M13: 7,128,488 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.4

Radius: 9.7

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.15 AU - 1.25 AU

Year: 836 Days

Day: 5.6 Hours

Environment

Temp: -165 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 14,841,872 km

• M1: 120,875 km (0.112 R)
• M2: 438,771 km (0.052 R)
• M3: 1,164,919 km (0.117 R)
• M4: 1,511,088 km (0.05 R)
• M5: 2,146,879 km (0.112 R)
• M6: 2,848,044 km (0.098 R)
• M7: 3,319,128 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.5

Radius: 10.6

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 1.17 AU - 1.71 AU

Year: 1099 Days

Day: 13.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 14,841,872 km

• M1: 134,040 km (0.116 R)
• M2: 512,223 km (0.088 R)
• M3: 1,016,518 km (0.082 R)
• M4: 1,531,134 km (0.102 R)
• M5: 2,137,604 km (0.109 R)
• M6: 2,651,473 km (0.039 R)
• M7: 3,020,381 km (0.048 R)
• M8: 3,393,478 km (0.085 R)
• M9: 4,045,126 km (0.115 R)
• M10: 5,067,777 km (0.086 R)
• M11: 5,555,616 km (0.03 R)
• M12: 5,963,869 km (0.086 R)
• M13: 6,461,581 km (0.083 R)
• M14: 6,937,900 km (0.115 R)
• M15: 8,735,169 km (0.109 R)
• M16: 9,619,293 km (0.107 R)
• M17: 10,020,664 km (0.092 R)
• M18: 10,956,249 km (0.098 R)
• M19: 11,462,488 km (0.032 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 649.9

Radius: 8.4

Gravity: 9.21 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.58 AU - 1.68 AU

Year: 1323 Days

Day: 8.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 14,841,872 km

• M1: 104,719 km (0.118 R)
• M2: 376,388 km (0.088 R)
• M3: 749,037 km (0.044 R)
• M4: 1,028,785 km (0.113 R)
• M5: 1,395,748 km (0.102 R)
• M6: 1,961,228 km (0.12 R)
• M7: 3,638,220 km (0.112 R)
• M8: 4,444,403 km (0.043 R)
• M9: 5,661,831 km (0.085 R)
• M10: 5,970,002 km (0.085 R)
• M11: 6,913,217 km (0.059 R)
• M12: 7,265,669 km (0.04 R)
• M13: 7,577,431 km (0.1 R)
• M14: 7,844,015 km (0.119 R)
• M15: 8,227,733 km (0.097 R)
• M16: 9,003,099 km (0.117 R)
• M17: 9,546,588 km (0.1 R)
• M18: 10,207,960 km (0.089 R)
• M19: 10,500,574 km (0.105 R)
• M20: 12,230,075 km (0.025 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 797.2

Radius: 11.6

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.73 AU - 1.93 AU

Year: 1574 Days

Day: 8.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 14,841,872 km

• M1: 172,636 km (0.096 R)
• M2: 586,274 km (0.087 R)
• M3: 1,825,244 km (0.092 R)
• M4: 2,398,054 km (0.117 R)
• M5: 3,179,104 km (0.057 R)
• M6: 4,159,569 km (0.071 R)
• M7: 5,353,360 km (0.098 R)
• M8: 5,759,668 km (0.109 R)
• M9: 6,235,239 km (0.088 R)
• M10: 7,907,594 km (0.111 R)
• M11: 10,130,169 km (0.064 R)
• M12: 11,366,745 km (0.12 R)
• M13: 13,101,333 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 973.1

Radius: 10.1

Gravity: 9.54 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.39 AU - 2.31 AU

Year: 1600 Days

Day: 7.9 Hours

Environment

Temp: -189 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 14,841,872 km

• M1: 125,662 km (0.103 R)
• M2: 449,691 km (0.084 R)
• M3: 842,386 km (0.106 R)
• M4: 1,187,807 km (0.116 R)
• M5: 1,629,270 km (0.079 R)
• M6: 2,418,399 km (0.077 R)
• M7: 3,058,528 km (0.087 R)
• M8: 3,562,673 km (0.074 R)
• M9: 3,916,771 km (0.118 R)
• M10: 4,294,356 km (0.074 R)
• M11: 5,145,120 km (0.095 R)
• M12: 5,506,249 km (0.055 R)
• M13: 6,054,974 km (0.117 R)
• M14: 6,587,542 km (0.074 R)
• M15: 6,905,737 km (0.108 R)
• M16: 7,290,054 km (0.117 R)
• M17: 8,101,473 km (0.117 R)
• M18: 9,004,146 km (0.077 R)
• M19: 9,396,691 km (0.102 R)
• M20: 10,715,995 km (0.116 R)
• M21: 12,353,343 km (0.119 R)
• M22: 14,326,988 km (0.071 R)
• M23: 14,727,611 km (0.08 R)
• M24: 15,504,922 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.6

Radius: 3.5

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.19 AU - 8.41 AU

Year: 13851 Days

Day: 23.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 14,841,872 km

• M1: 43,533 km (0.113 R)
• M2: 198,965 km (0.114 R)
• M3: 423,362 km (0.112 R)
• M4: 817,702 km (0.082 R)
• M5: 948,600 km (0.113 R)
• M6: 1,304,045 km (0.09 R)
• M7: 2,271,644 km (0.057 R)
• M8: 3,336,781 km (0.114 R)
• M9: 3,621,764 km (0.085 R)
• M10: 4,183,056 km (0.043 R)
• M11: 4,594,749 km (0.055 R)
• M12: 5,295,316 km (0.072 R)
• M13: 8,444,052 km (0.116 R)
• M14: 10,617,260 km (0.104 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: 484 - 17,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit