🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.5

Radius: 10.4

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.51 AU - 0.73 AU

Year: 326 Days

Day: 13.3 Hours

Environment

Temp: -147 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 79,033,416 km

• M1: 129,402 km (0.036 R)
• M2: 507,436 km (0.09 R)
• M3: 853,306 km (0.082 R)
• M4: 1,311,973 km (0.027 R)
• M5: 1,674,000 km (0.054 R)
• M6: 2,127,282 km (0.08 R)
• M7: 2,477,191 km (0.094 R)
• M8: 2,915,662 km (0.111 R)
• M9: 4,152,837 km (0.112 R)
• M10: 4,524,288 km (0.074 R)
• M11: 4,918,180 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 450.7

Radius: 11.7

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.51 AU - 0.83 AU

Year: 366 Days

Day: 5.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 79,033,416 km

• M1: 145,559 km (0.077 R)
• M2: 545,434 km (0.089 R)
• M3: 973,583 km (0.106 R)
• M4: 1,424,172 km (0.041 R)
• M5: 1,847,534 km (0.111 R)
• M6: 2,448,468 km (0.114 R)
• M7: 2,974,604 km (0.055 R)
• M8: 3,946,990 km (0.074 R)
• M9: 4,579,939 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 265.1

Radius: 11.4

Gravity: 2.04 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.67 AU - 0.93 AU

Year: 477 Days

Day: 7.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 79,033,416 km

• M1: 146,008 km (0.081 R)
• M2: 534,214 km (0.073 R)
• M3: 979,567 km (0.104 R)
• M4: 1,542,055 km (0.056 R)
• M5: 2,651,622 km (0.116 R)
• M6: 3,366,850 km (0.101 R)
• M7: 3,747,127 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.5

Radius: 12.9

Gravity: 2.74 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 1.04 AU - 1.28 AU

Year: 833 Days

Day: 14.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,033,416 km

• M1: 160,519 km (0.099 R)
• M2: 736,171 km (0.065 R)
• M3: 1,319,004 km (0.104 R)
• M4: 1,751,492 km (0.114 R)
• M5: 2,164,232 km (0.1 R)
• M6: 3,331,844 km (0.069 R)
• M7: 3,831,650 km (0.046 R)
• M8: 4,366,014 km (0.076 R)
• M9: 5,000,608 km (0.117 R)
• M10: 5,752,337 km (0.074 R)
• M11: 6,807,002 km (0.075 R)
• M12: 7,823,370 km (0.046 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.8

Radius: 12.4

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.36 AU - 1.64 AU

Year: 1225 Days

Day: 12.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 79,033,416 km

• M1: 154,235 km (0.106 R)
• M2: 601,533 km (0.078 R)
• M3: 1,074,861 km (0.106 R)
• M4: 1,632,711 km (0.061 R)
• M5: 2,108,283 km (0.088 R)
• M6: 2,753,798 km (0.097 R)
• M7: 3,396,171 km (0.08 R)
• M8: 4,585,175 km (0.106 R)
• M9: 4,998,214 km (0.093 R)
• M10: 5,711,348 km (0.074 R)
• M11: 6,269,796 km (0.078 R)
• M12: 6,864,597 km (0.115 R)
• M13: 7,519,238 km (0.057 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 398.4

Radius: 13.3

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 3.42 AU - 4.12 AU

Year: 4881 Days

Day: 7.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 79,033,416 km

• M1: 165,605 km (0.119 R)
• M2: 593,455 km (0.113 R)
• M3: 1,549,684 km (0.043 R)
• M4: 2,501,725 km (0.108 R)
• M5: 3,245,376 km (0.095 R)
• M6: 3,812,951 km (0.083 R)
• M7: 4,309,615 km (0.094 R)
• M8: 4,849,664 km (0.065 R)
• M9: 5,785,698 km (0.112 R)
• M10: 7,444,140 km (0.093 R)
• M11: 8,294,903 km (0.099 R)
• M12: 9,593,861 km (0.091 R)
• M13: 10,981,531 km (0.098 R)
• M14: 12,780,894 km (0.096 R)
• M15: 13,503,901 km (0.08 R)
• M16: 14,152,407 km (0.108 R)
• M17: 16,167,790 km (0.064 R)
• M18: 17,071,211 km (0.111 R)
• M19: 18,549,986 km (0.025 R)
• M20: 19,984,331 km (0.025 R)
• M21: 22,583,743 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.7

Radius: 10.8

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 2.99 AU - 4.97 AU

Year: 5295 Days

Day: 13 Hours

Environment

Temp: -216 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 79,033,416 km

• M1: 135,984 km (0.091 R)
• M2: 499,208 km (0.1 R)
• M3: 1,166,265 km (0.111 R)
• M4: 1,906,924 km (0.111 R)
• M5: 2,593,429 km (0.118 R)
• M6: 3,421,752 km (0.105 R)
• M7: 5,246,846 km (0.103 R)
• M8: 5,664,823 km (0.096 R)
• M9: 7,870,344 km (0.12 R)
• M10: 9,055,458 km (0.084 R)
• M11: 10,492,495 km (0.096 R)
• M12: 13,323,934 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.3

Radius: 7.2

Gravity: 13.47 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 5.69 AU - 9.31 AU

Year: 13697 Days

Day: 23.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,033,416 km

• M1: 89,609 km (0.109 R)
• M2: 323,879 km (0.119 R)
• M3: 631,901 km (0.039 R)
• M4: 1,121,685 km (0.115 R)
• M5: 1,630,318 km (0.119 R)
• M6: 2,283,312 km (0.076 R)
• M7: 2,614,821 km (0.096 R)
• M8: 4,006,829 km (0.063 R)
• M9: 4,945,855 km (0.095 R)
• M10: 6,140,095 km (0.118 R)
• M11: 6,416,253 km (0.059 R)
• M12: 10,355,763 km (0.073 R)
• M13: 13,507,790 km (0.113 R)
• M14: 15,444,933 km (0.112 R)
• M15: 18,687,018 km (0.096 R)
• M16: 28,065,309 km (0.065 R)
• M17: 31,544,506 km (0.053 R)
• M18: 35,933,409 km (0.09 R)
• M19: 37,351,447 km (0.084 R)
• M20: 39,344,838 km (0.084 R)
• M21: 40,161,792 km (0.12 R)
• M22: 41,268,368 km (0.064 R)
• M23: 52,485,815 km (0.043 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 635.6

Radius: 8

Gravity: 9.93 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 8.61 AU - 11.95 AU

Year: 21980 Days

Day: 20.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,033,416 km

• M1: 100,979 km (0.083 R)
• M2: 387,758 km (0.115 R)
• M3: 779,555 km (0.1 R)
• M4: 4,328,914 km (0.112 R)
• M5: 5,151,253 km (0.113 R)
• M6: 6,031,487 km (0.061 R)
• M7: 7,534,796 km (0.083 R)
• M8: 8,883,570 km (0.115 R)
• M9: 9,442,917 km (0.1 R)
• M10: 11,070,691 km (0.103 R)
• M11: 13,160,573 km (0.07 R)
• M12: 14,949,465 km (0.081 R)
• M13: 15,660,354 km (0.081 R)
• M14: 16,894,686 km (0.058 R)
• M15: 20,025,321 km (0.118 R)
• M16: 22,382,534 km (0.117 R)
• M17: 24,375,327 km (0.066 R)
• M18: 26,483,610 km (0.108 R)
• M19: 27,523,465 km (0.064 R)
• M20: 38,722,212 km (0.094 R)
• M21: 39,611,123 km (0.09 R)
• M22: 41,122,959 km (0.113 R)
• M23: 46,717,021 km (0.058 R)
• M24: 60,965,022 km (0.071 R)
• M25: 62,167,639 km (0.075 R)
• M26: 68,633,858 km (0.066 R)
• M27: 78,325,107 km (0.068 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 10,562 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit