🌌 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 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.5 AU - 0.74 AU

Year: 315 Days

Day: 35.6 Hours

Environment

Temp: -130 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.59 AU - 0.67 AU

Year: 323 Days

Day: 24.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 43.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 61,597,308 km

• M1: 35,754 km (0.11 R)
• M2: 209,287 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.1

Radius: 11.1

Gravity: 5.54 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 0.69 AU - 0.75 AU

Year: 394 Days

Day: 12.9 Hours

Environment

Temp: -141 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,597,308 km

• M1: 138,079 km (0.069 R)
• M2: 492,027 km (0.032 R)
• M3: 1,008,738 km (0.042 R)
• M4: 1,359,695 km (0.047 R)
• M5: 1,823,748 km (0.078 R)
• M6: 2,224,820 km (0.036 R)
• M7: 2,714,603 km (0.057 R)
• M8: 3,175,065 km (0.093 R)
• M9: 3,699,555 km (0.044 R)
• M10: 4,213,723 km (0.079 R)
• M11: 5,291,127 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.3

Radius: 10.3

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.94 AU - 1.36 AU

Year: 796 Days

Day: 13.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 61,597,308 km

• M1: 128,056 km (0.106 R)
• M2: 566,527 km (0.106 R)
• M3: 1,050,626 km (0.076 R)
• M4: 1,428,809 km (0.116 R)
• M5: 2,232,599 km (0.078 R)
• M6: 3,130,784 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.3

Radius: 10.1

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 3.63 AU - 3.85 AU

Year: 4670 Days

Day: 15 Hours

Environment

Temp: -219 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,597,308 km

• M1: 125,662 km (0.041 R)
• M2: 447,148 km (0.09 R)
• M3: 898,485 km (0.085 R)
• M4: 1,290,431 km (0.089 R)
• M5: 2,984,328 km (0.079 R)
• M6: 3,308,357 km (0.118 R)
• M7: 10,183,725 km (0.07 R)
• M8: 10,923,936 km (0.06 R)
• M9: 12,387,452 km (0.109 R)
• M10: 13,101,931 km (0.097 R)
• M11: 15,844,808 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12

Radius: 9.7

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 4.37 AU - 4.63 AU

Year: 6164 Days

Day: 14.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 61,597,308 km

• M1: 121,922 km (0.088 R)
• M2: 604,974 km (0.076 R)
• M3: 3,725,286 km (0.097 R)
• M4: 4,293,459 km (0.113 R)
• M5: 5,602,889 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 652.4

Radius: 10.7

Gravity: 5.7 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.28 AU - 6.58 AU

Year: 8170 Days

Day: 5.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 61,597,308 km

• M1: 133,142 km (0.086 R)
• M2: 476,768 km (0.087 R)
• M3: 846,874 km (0.116 R)
• M4: 1,357,002 km (0.07 R)
• M5: 4,210,582 km (0.063 R)
• M6: 4,907,259 km (0.064 R)
• M7: 5,392,554 km (0.066 R)
• M8: 6,043,754 km (0.077 R)
• M9: 6,459,187 km (0.102 R)
• M10: 7,701,149 km (0.119 R)
• M11: 9,320,845 km (0.025 R)
• M12: 9,689,005 km (0.106 R)
• M13: 11,836,782 km (0.086 R)
• M14: 14,163,777 km (0.092 R)
• M15: 15,853,186 km (0.09 R)
• M16: 17,883,677 km (0.108 R)
• M17: 22,701,327 km (0.082 R)
• M18: 23,707,971 km (0.067 R)
• M19: 25,540,844 km (0.076 R)
• M20: 25,990,685 km (0.096 R)
• M21: 28,802,377 km (0.118 R)
• M22: 35,022,657 km (0.105 R)
• M23: 35,578,263 km (0.11 R)
• M24: 37,395,578 km (0.085 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.5

Radius: 7.4

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 7.49 AU - 10.01 AU

Year: 16712 Days

Day: 17.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,597,308 km

• M1: 92,003 km (0.119 R)
• M2: 378,483 km (0.108 R)
• M3: 629,657 km (0.099 R)
• M4: 1,275,920 km (0.12 R)
• M5: 2,639,654 km (0.085 R)
• M6: 2,890,530 km (0.059 R)
• M7: 4,780,250 km (0.034 R)
• M8: 5,511,934 km (0.119 R)
• M9: 8,298,792 km (0.087 R)
• M10: 10,720,632 km (0.118 R)
• M11: 12,982,552 km (0.097 R)
• M12: 13,443,762 km (0.076 R)
• M13: 17,534,516 km (0.111 R)
• M14: 21,278,951 km (0.11 R)
• M15: 21,827,526 km (0.046 R)
• M16: 22,292,028 km (0.106 R)
• M17: 23,048,694 km (0.112 R)
• M18: 24,713,568 km (0.066 R)
• M19: 27,091,426 km (0.085 R)
• M20: 30,301,498 km (0.052 R)
• M21: 35,770,796 km (0.099 R)
• M22: 45,079,074 km (0.102 R)
• M23: 48,455,498 km (0.106 R)
• M24: 57,803,271 km (0.109 R)
• M25: 59,229,687 km (0.103 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 15,226 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit