🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.57 AU - 0.69 AU

Year: 328 Days

Day: 44.6 Hours

Environment

Temp: -133 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 35,356,271 km

• M1: 41,439 km (0.063 R)
• M2: 148,251 km (0.051 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.6

Radius: 12.2

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.73 AU - 0.83 AU

Year: 452 Days

Day: 11.4 Hours

Environment

Temp: -137 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 35,356,271 km

• M1: 151,842 km (0.067 R)
• M2: 536,757 km (0.099 R)
• M3: 1,089,222 km (0.1 R)
• M4: 1,500,915 km (0.097 R)
• M5: 1,901,239 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.2

Radius: 9.3

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.98 AU - 1.02 AU

Year: 656 Days

Day: 9.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,356,271 km

• M1: 115,639 km (0.072 R)
• M2: 414,386 km (0.115 R)
• M3: 713,432 km (0.073 R)
• M4: 1,177,784 km (0.089 R)
• M5: 1,527,843 km (0.066 R)
• M6: 1,886,728 km (0.099 R)
• M7: 2,984,926 km (0.071 R)
• M8: 3,419,508 km (0.11 R)
• M9: 4,354,495 km (0.11 R)
• M10: 4,750,181 km (0.114 R)
• M11: 5,135,246 km (0.067 R)
• M12: 5,468,999 km (0.099 R)
• M13: 5,854,812 km (0.049 R)
• M14: 6,578,716 km (0.053 R)
• M15: 7,186,831 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 495.6

Radius: 9.9

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.22 AU - 1.96 AU

Year: 1315 Days

Day: 12.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,356,271 km

• M1: 123,119 km (0.068 R)
• M2: 515,065 km (0.118 R)
• M3: 848,818 km (0.114 R)
• M4: 1,244,056 km (0.114 R)
• M5: 1,565,991 km (0.109 R)
• M6: 2,035,279 km (0.115 R)
• M7: 2,349,135 km (0.112 R)
• M8: 3,229,968 km (0.06 R)
• M9: 3,538,139 km (0.069 R)
• M10: 4,265,334 km (0.082 R)
• M11: 4,601,032 km (0.114 R)
• M12: 5,206,604 km (0.116 R)
• M13: 5,950,405 km (0.088 R)
• M14: 6,646,334 km (0.104 R)
• M15: 7,050,398 km (0.109 R)
• M16: 7,370,388 km (0.037 R)
• M17: 7,803,623 km (0.105 R)
• M18: 8,253,763 km (0.09 R)
• M19: 9,829,926 km (0.025 R)
• M20: 10,355,314 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.4

Radius: 8.5

Gravity: 12.17 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.53 AU - 1.83 AU

Year: 1428 Days

Day: 9.8 Hours

Environment

Temp: -184 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 35,356,271 km

• M1: 106,962 km (0.118 R)
• M2: 622,776 km (0.12 R)
• M3: 1,072,467 km (0.087 R)
• M4: 1,359,246 km (0.092 R)
• M5: 1,882,540 km (0.084 R)
• M6: 2,281,667 km (0.099 R)
• M7: 2,778,032 km (0.027 R)
• M8: 3,392,431 km (0.067 R)
• M9: 3,689,532 km (0.092 R)
• M10: 4,548,673 km (0.039 R)
• M11: 5,490,391 km (0.058 R)
• M12: 5,785,249 km (0.102 R)
• M13: 6,235,239 km (0.107 R)
• M14: 7,367,396 km (0.043 R)
• M15: 7,953,670 km (0.053 R)
• M16: 8,302,532 km (0.057 R)
• M17: 11,144,593 km (0.115 R)
• M18: 12,529,121 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.4

Radius: 9.9

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.6 AU - 3.22 AU

Year: 3256 Days

Day: 13.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 35,356,271 km

• M1: 123,717 km (0.101 R)
• M2: 511,774 km (0.105 R)
• M3: 1,019,958 km (0.073 R)
• M4: 1,652,009 km (0.108 R)
• M5: 2,485,569 km (0.09 R)
• M6: 3,166,389 km (0.116 R)
• M7: 3,542,029 km (0.044 R)
• M8: 3,871,593 km (0.079 R)
• M9: 4,635,290 km (0.116 R)
• M10: 5,330,023 km (0.034 R)
• M11: 8,080,978 km (0.043 R)
• M12: 11,702,144 km (0.118 R)
• M13: 12,025,275 km (0.057 R)
• M14: 13,509,735 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.1

Radius: 15

Gravity: 3.8 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.31 AU - 5.11 AU

Year: 5667 Days

Day: 11.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,356,271 km

• M1: 186,698 km (0.064 R)
• M2: 697,425 km (0.058 R)
• M3: 1,285,794 km (0.076 R)
• M4: 1,896,751 km (0.084 R)
• M5: 2,505,615 km (0.061 R)
• M6: 3,264,824 km (0.117 R)
• M7: 3,861,271 km (0.083 R)
• M8: 4,400,721 km (0.068 R)
• M9: 6,496,138 km (0.048 R)
• M10: 7,084,207 km (0.095 R)
• M11: 7,745,280 km (0.092 R)
• M12: 8,447,343 km (0.098 R)
• M13: 10,206,016 km (0.053 R)
• M14: 10,764,315 km (0.085 R)
• M15: 11,342,959 km (0.069 R)
• M16: 11,891,535 km (0.051 R)
• M17: 13,095,947 km (0.087 R)
• M18: 14,151,211 km (0.081 R)
• M19: 14,846,392 km (0.031 R)
• M20: 16,242,738 km (0.094 R)
• M21: 18,328,881 km (0.105 R)
• M22: 22,712,846 km (0.084 R)
• M23: 28,112,133 km (0.098 R)
• M24: 28,842,170 km (0.092 R)
• M25: 32,683,694 km (0.081 R)
• M26: 34,415,140 km (0.103 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 375 - 15,600 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit