🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.55

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 0.6 AU - 0.72 AU

Year: 346 Days

Day: 34.3 Hours

Environment

Temp: -129 °C

Axial Tilt: 9.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.2

Radius: 14.3

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.86 AU - 0.88 AU

Year: 524 Days

Day: 12.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,711,639 km

• M1: 178,470 km (0.081 R)
• M2: 666,010 km (0.107 R)
• M3: 1,531,583 km (0.119 R)
• M4: 2,900,254 km (0.049 R)
• M5: 3,783,330 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.9

Radius: 9.1

Gravity: 11.64 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.94 AU - 1.1 AU

Year: 665 Days

Day: 15 Hours

Environment

Temp: -167 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 21,711,639 km

• M1: 113,694 km (0.044 R)
• M2: 515,963 km (0.083 R)
• M3: 859,739 km (0.108 R)
• M4: 1,221,018 km (0.092 R)
• M5: 1,716,785 km (0.044 R)
• M6: 2,098,709 km (0.088 R)
• M7: 2,503,670 km (0.11 R)
• M8: 2,898,758 km (0.04 R)
• M9: 3,829,705 km (0.11 R)
• M10: 4,404,909 km (0.058 R)
• M11: 5,383,728 km (0.119 R)
• M12: 5,727,354 km (0.062 R)
• M13: 6,085,641 km (0.051 R)
• M14: 6,437,645 km (0.118 R)
• M15: 6,935,656 km (0.113 R)
• M16: 7,366,199 km (0.06 R)
• M17: 7,670,930 km (0.119 R)
• M18: 8,008,572 km (0.112 R)
• M19: 8,559,242 km (0.053 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 795.4

Radius: 8.7

Gravity: 10.51 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.43 AU - 2.07 AU

Year: 1495 Days

Day: 11.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 21,711,639 km

• M1: 108,458 km (0.084 R)
• M2: 770,728 km (0.104 R)
• M3: 1,043,595 km (0.054 R)
• M4: 1,399,937 km (0.087 R)
• M5: 1,764,956 km (0.079 R)
• M6: 2,648,032 km (0.038 R)
• M7: 3,546,068 km (0.074 R)
• M8: 4,011,168 km (0.075 R)
• M9: 4,458,316 km (0.056 R)
• M10: 5,954,444 km (0.117 R)
• M11: 6,462,179 km (0.097 R)
• M12: 8,544,282 km (0.047 R)
• M13: 9,639,189 km (0.119 R)
• M14: 11,804,319 km (0.038 R)
• M15: 13,000,055 km (0.034 R)
• M16: 13,979,771 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.8

Radius: 11.9

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.94 AU - 2.64 AU

Year: 2238 Days

Day: 11.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 21,711,639 km

• M1: 151,543 km (0.081 R)
• M2: 606,919 km (0.115 R)
• M3: 977,472 km (0.112 R)
• M4: 1,488,798 km (0.065 R)
• M5: 2,053,979 km (0.089 R)
• M6: 3,988,429 km (0.117 R)
• M7: 5,066,281 km (0.028 R)
• M8: 5,995,284 km (0.118 R)
• M9: 6,784,413 km (0.119 R)
• M10: 7,261,630 km (0.1 R)
• M11: 7,761,138 km (0.051 R)
• M12: 8,537,401 km (0.119 R)
• M13: 9,398,935 km (0.037 R)
• M14: 10,317,466 km (0.06 R)
• M15: 12,415,426 km (0.032 R)
• M16: 12,833,104 km (0.108 R)
• M17: 13,260,206 km (0.076 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.9

Radius: 8.4

Gravity: 11.76 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.13 AU - 3.15 AU

Year: 2770 Days

Day: 5.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 21,711,639 km

• M1: 105,466 km (0.113 R)
• M2: 430,094 km (0.055 R)
• M3: 805,884 km (0.119 R)
• M4: 1,198,877 km (0.073 R)
• M5: 1,604,587 km (0.06 R)
• M6: 2,276,880 km (0.11 R)
• M7: 2,987,619 km (0.11 R)
• M8: 4,106,013 km (0.047 R)
• M9: 4,587,419 km (0.116 R)
• M10: 4,936,879 km (0.034 R)
• M11: 5,354,407 km (0.088 R)
• M12: 5,848,678 km (0.098 R)
• M13: 6,632,272 km (0.086 R)
• M14: 9,256,518 km (0.117 R)
• M15: 9,930,456 km (0.086 R)
• M16: 10,279,468 km (0.118 R)
• M17: 14,929,718 km (0.05 R)
• M18: 17,039,646 km (0.076 R)
• M19: 18,629,872 km (0.081 R)
• M20: 19,101,853 km (0.073 R)
• M21: 20,316,737 km (0.117 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 431 - 18,993 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit