🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 527.1

Radius: 10.8

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.68 AU - 1.12 AU

Year: 600 Days

Day: 10.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,517,303 km

• M1: 134,488 km (0.103 R)
• M2: 476,768 km (0.112 R)
• M3: 891,753 km (0.115 R)
• M4: 1,250,189 km (0.109 R)
• M5: 1,639,443 km (0.077 R)
• M6: 2,218,387 km (0.112 R)
• M7: 2,841,013 km (0.092 R)
• M8: 3,277,839 km (0.099 R)
• M9: 3,786,023 km (0.112 R)
• M10: 5,123,428 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.6

Radius: 9.8

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.72 AU - 1.1 AU

Year: 610 Days

Day: 9.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,517,303 km

• M1: 121,922 km (0.076 R)
• M2: 525,837 km (0.025 R)
• M3: 856,897 km (0.118 R)
• M4: 1,185,862 km (0.102 R)
• M5: 1,600,697 km (0.097 R)
• M6: 1,937,891 km (0.101 R)
• M7: 2,462,231 km (0.116 R)
• M8: 3,412,178 km (0.106 R)
• M9: 3,924,999 km (0.117 R)
• M10: 4,332,055 km (0.116 R)
• M11: 5,425,466 km (0.047 R)
• M12: 5,879,944 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.5

Radius: 9.7

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.68 AU - 1.14 AU

Year: 610 Days

Day: 8.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 43,517,303 km

• M1: 126,560 km (0.105 R)
• M2: 453,132 km (0.11 R)
• M3: 775,665 km (0.117 R)
• M4: 1,514,529 km (0.12 R)
• M5: 2,080,009 km (0.104 R)
• M6: 2,549,148 km (0.096 R)
• M7: 3,747,277 km (0.059 R)
• M8: 4,511,423 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.2

Radius: 11

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.75 AU - 1.25 AU

Year: 703 Days

Day: 5.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 43,517,303 km

• M1: 140,622 km (0.078 R)
• M2: 534,214 km (0.104 R)
• M3: 1,158,336 km (0.084 R)
• M4: 1,700,629 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 219.4

Radius: 11.7

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.2 AU - 1.8 AU

Year: 1291 Days

Day: 5.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,517,303 km

• M1: 151,842 km (0.106 R)
• M2: 759,808 km (0.069 R)
• M3: 1,250,489 km (0.049 R)
• M4: 1,630,467 km (0.115 R)
• M5: 2,155,556 km (0.072 R)
• M6: 2,700,242 km (0.097 R)
• M7: 3,231,314 km (0.088 R)
• M8: 3,745,482 km (0.098 R)
• M9: 4,174,080 km (0.102 R)
• M10: 6,577,519 km (0.096 R)
• M11: 7,498,294 km (0.113 R)
• M12: 7,965,937 km (0.073 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.6

Radius: 10.9

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 3.36 AU - 3.74 AU

Year: 4702 Days

Day: 9.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,517,303 km

• M1: 135,984 km (0.067 R)
• M2: 489,335 km (0.115 R)
• M3: 992,283 km (0.072 R)
• M4: 1,793,529 km (0.079 R)
• M5: 2,189,963 km (0.061 R)
• M6: 2,661,197 km (0.084 R)
• M7: 3,274,099 km (0.097 R)
• M8: 3,872,341 km (0.085 R)
• M9: 4,356,290 km (0.101 R)
• M10: 4,855,498 km (0.114 R)
• M11: 5,366,375 km (0.105 R)
• M12: 7,442,045 km (0.099 R)
• M13: 8,477,861 km (0.12 R)
• M14: 10,208,110 km (0.105 R)
• M15: 10,706,869 km (0.077 R)
• M16: 12,162,456 km (0.067 R)
• M17: 12,770,721 km (0.049 R)
• M18: 14,354,664 km (0.076 R)
• M19: 14,875,414 km (0.045 R)
• M20: 15,301,169 km (0.119 R)
• M21: 16,176,915 km (0.102 R)
• M22: 18,269,341 km (0.088 R)
• M23: 21,601,484 km (0.098 R)
• M24: 24,059,826 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.9

Radius: 10.2

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.82 AU - 4.18 AU

Year: 5623 Days

Day: 6.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 43,517,303 km

• M1: 126,859 km (0.111 R)
• M2: 465,997 km (0.072 R)
• M3: 812,017 km (0.098 R)
• M4: 1,441,375 km (0.093 R)
• M5: 1,801,607 km (0.083 R)
• M6: 3,180,002 km (0.072 R)
• M7: 4,014,758 km (0.091 R)
• M8: 4,523,540 km (0.119 R)
• M9: 5,486,951 km (0.099 R)
• M10: 7,438,156 km (0.083 R)
• M11: 8,049,263 km (0.087 R)
• M12: 9,546,738 km (0.029 R)
• M13: 10,361,448 km (0.097 R)
• M14: 13,303,739 km (0.104 R)
• M15: 14,319,807 km (0.081 R)
• M16: 17,612,008 km (0.085 R)
• M17: 19,611,832 km (0.098 R)
• M18: 20,189,130 km (0.069 R)
• M19: 24,057,282 km (0.113 R)
• M20: 25,906,013 km (0.12 R)
• M21: 26,864,935 km (0.089 R)
• M22: 27,937,851 km (0.115 R)
• M23: 34,355,600 km (0.102 R)
• M24: 35,725,916 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 141.5

Radius: 11.1

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 3.31 AU - 4.95 AU

Year: 5900 Days

Day: 13.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,517,303 km

• M1: 140,024 km (0.066 R)
• M2: 1,679,087 km (0.114 R)
• M3: 3,449,278 km (0.118 R)
• M4: 4,040,040 km (0.037 R)
• M5: 5,958,932 km (0.091 R)
• M6: 7,618,720 km (0.057 R)
• M7: 9,459,073 km (0.106 R)
• M8: 12,596,590 km (0.026 R)
• M9: 13,082,483 km (0.116 R)
• M10: 17,055,055 km (0.094 R)
• M11: 17,870,064 km (0.065 R)
• M12: 19,054,281 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 315.8

Radius: 7.7

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 5.95 AU - 7.85 AU

Year: 12740 Days

Day: 24.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 43,517,303 km

• M1: 96,042 km (0.111 R)
• M2: 370,704 km (0.111 R)
• M3: 1,572,573 km (0.112 R)
• M4: 2,853,879 km (0.103 R)
• M5: 3,524,077 km (0.059 R)
• M6: 4,132,192 km (0.074 R)
• M7: 4,897,834 km (0.048 R)
• M8: 5,330,322 km (0.071 R)
• M9: 8,833,455 km (0.103 R)
• M10: 9,150,303 km (0.106 R)
• M11: 10,195,992 km (0.057 R)
• M12: 10,901,496 km (0.084 R)
• M13: 13,038,801 km (0.074 R)
• M14: 13,809,230 km (0.095 R)
• M15: 16,780,094 km (0.077 R)
• M16: 17,762,653 km (0.092 R)
• M17: 18,267,994 km (0.072 R)
• M18: 20,780,939 km (0.048 R)
• M19: 24,923,604 km (0.083 R)
• M20: 26,762,012 km (0.097 R)
• M21: 29,787,330 km (0.079 R)
• M22: 31,855,670 km (0.079 R)
• M23: 32,601,714 km (0.065 R)
• M24: 37,441,953 km (0.098 R)
• M25: 42,998,318 km (0.027 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 265 - 10,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit