🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner (Rocky/Metallic)

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: 175.6

Radius: 9.6

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.84 AU - 0.96 AU

Year: 543 Days

Day: 9.7 Hours

Environment

Temp: -145 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,458,977 km

• M1: 119,379 km (0.098 R)
• M2: 577,298 km (0.091 R)
• M3: 1,569,581 km (0.058 R)
• M4: 2,261,022 km (0.106 R)
• M5: 2,764,120 km (0.102 R)
• M6: 3,393,628 km (0.083 R)
• M7: 3,946,990 km (0.113 R)
• M8: 4,289,569 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410

Radius: 13.2

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.8 AU - 1.1 AU

Year: 589 Days

Day: 6.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,458,977 km

• M1: 164,109 km (0.091 R)
• M2: 1,005,447 km (0.04 R)
• M3: 1,442,722 km (0.117 R)
• M4: 1,859,053 km (0.067 R)
• M5: 2,459,539 km (0.12 R)
• M6: 3,198,702 km (0.079 R)
• M7: 3,690,280 km (0.103 R)
• M8: 4,544,634 km (0.078 R)
• M9: 5,011,379 km (0.119 R)
• M10: 5,444,016 km (0.064 R)
• M11: 5,954,145 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 711.4

Radius: 14.6

Gravity: 3.34 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.43 AU - 2.27 AU

Year: 1600 Days

Day: 6.8 Hours

Environment

Temp: -194 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,458,977 km

• M1: 182,210 km (0.057 R)
• M2: 781,948 km (0.045 R)
• M3: 1,320,201 km (0.117 R)
• M4: 2,022,264 km (0.036 R)
• M5: 2,756,191 km (0.12 R)
• M6: 3,340,371 km (0.116 R)
• M7: 3,901,512 km (0.107 R)
• M8: 5,088,572 km (0.114 R)
• M9: 5,858,701 km (0.074 R)
• M10: 6,554,481 km (0.11 R)
• M11: 7,013,747 km (0.078 R)
• M12: 7,659,860 km (0.08 R)
• M13: 8,170,138 km (0.094 R)
• M14: 8,916,781 km (0.112 R)
• M15: 10,512,242 km (0.073 R)
• M16: 11,001,278 km (0.088 R)
• M17: 12,638,477 km (0.066 R)
• M18: 13,927,562 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.9

Radius: 10.7

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 3.25 AU - 3.89 AU

Year: 4289 Days

Day: 7.6 Hours

Environment

Temp: -200 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 61,458,977 km

• M1: 134,788 km (0.072 R)
• M2: 755,020 km (0.104 R)
• M3: 1,583,344 km (0.096 R)
• M4: 2,645,040 km (0.089 R)
• M5: 3,625,953 km (0.12 R)
• M6: 5,493,084 km (0.113 R)
• M7: 10,316,269 km (0.119 R)
• M8: 13,370,010 km (0.105 R)
• M9: 14,477,633 km (0.081 R)
• M10: 15,200,340 km (0.097 R)
• M11: 16,717,861 km (0.111 R)
• M12: 19,065,650 km (0.079 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.5

Radius: 13.2

Gravity: 1.42 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.78 AU - 4.78 AU

Year: 5630 Days

Day: 6.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,458,977 km

• M1: 166,502 km (0.057 R)
• M2: 733,778 km (0.12 R)
• M3: 1,354,010 km (0.109 R)
• M4: 2,413,911 km (0.097 R)
• M5: 3,339,623 km (0.076 R)
• M6: 4,030,615 km (0.089 R)
• M7: 4,627,212 km (0.091 R)
• M8: 5,998,725 km (0.051 R)
• M9: 8,935,630 km (0.066 R)
• M10: 9,606,128 km (0.088 R)
• M11: 10,150,814 km (0.117 R)
• M12: 11,473,409 km (0.09 R)
• M13: 13,765,697 km (0.108 R)
• M14: 14,762,916 km (0.064 R)
• M15: 16,513,062 km (0.067 R)
• M16: 18,875,362 km (0.119 R)
• M17: 19,980,591 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.3

Radius: 10.3

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 4.7 AU - 6.3 AU

Year: 8201 Days

Day: 8.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,458,977 km

• M1: 133,591 km (0.11 R)
• M2: 491,728 km (0.118 R)
• M3: 1,170,454 km (0.094 R)
• M4: 1,599,351 km (0.053 R)
• M5: 3,834,642 km (0.086 R)
• M6: 4,573,955 km (0.079 R)
• M7: 4,906,661 km (0.058 R)
• M8: 7,292,896 km (0.12 R)
• M9: 7,865,258 km (0.044 R)
• M10: 9,854,760 km (0.111 R)
• M11: 10,412,161 km (0.109 R)
• M12: 10,990,507 km (0.06 R)
• M13: 16,609,552 km (0.056 R)
• M14: 20,288,164 km (0.099 R)
• M15: 25,155,780 km (0.106 R)
• M16: 26,109,316 km (0.06 R)
• M17: 27,721,533 km (0.095 R)
• M18: 28,832,596 km (0.086 R)
• M19: 32,546,812 km (0.071 R)
• M20: 33,058,137 km (0.119 R)
• M21: 33,782,939 km (0.115 R)
• M22: 35,264,407 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 311.2

Radius: 5.3

Gravity: 11.08 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 8.56 AU - 12.38 AU

Year: 21540 Days

Day: 17.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 61,458,977 km

• M1: 66,721 km (0.084 R)
• M2: 294,558 km (0.119 R)
• M3: 602,580 km (0.09 R)
• M4: 925,263 km (0.114 R)
• M5: 1,342,641 km (0.099 R)
• M6: 1,641,986 km (0.089 R)
• M7: 2,415,557 km (0.046 R)
• M8: 2,882,751 km (0.092 R)
• M9: 3,200,946 km (0.092 R)
• M10: 3,461,396 km (0.095 R)
• M11: 4,812,115 km (0.101 R)
• M12: 5,119,389 km (0.042 R)
• M13: 7,069,846 km (0.103 R)
• M14: 7,648,341 km (0.098 R)
• M15: 8,549,668 km (0.071 R)
• M16: 10,561,310 km (0.09 R)
• M17: 12,483,344 km (0.029 R)
• M18: 13,864,282 km (0.076 R)
• M19: 14,207,609 km (0.083 R)
• M20: 18,039,110 km (0.115 R)
• M21: 18,947,169 km (0.089 R)
• M22: 20,059,279 km (0.08 R)
• M23: 20,854,093 km (0.098 R)
• M24: 21,033,610 km (0.12 R)
• M25: 23,655,612 km (0.106 R)
• M26: 23,850,837 km (0.089 R)
• M27: 24,047,110 km (0.112 R)
• M28: 24,642,509 km (0.116 R)
• M29: 26,909,815 km (0.115 R)
• M30: 27,122,543 km (0.117 R)
• M31: 39,251,789 km (0.1 R)
• M32: 46,942,765 km (0.055 R)
• M33: 56,271,239 km (0.113 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 481 - 20,335 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit