🌌 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: 2.2

Radius: 1.37

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.62 AU - 0.64 AU

Year: 323 Days

Day: 25.3 Hours

Environment

Temp: -131 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 80,322,808 km

• M1: 192,832 km (0.1 R)
• M2: 562,039 km (0.053 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.5

Radius: 11.4

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 0.78 AU - 0.86 AU

Year: 479 Days

Day: 8.3 Hours

Environment

Temp: -146 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,322,808 km

• M1: 141,819 km (0.082 R)
• M2: 504,145 km (0.091 R)
• M3: 996,621 km (0.111 R)
• M4: 1,380,489 km (0.113 R)
• M5: 1,891,366 km (0.034 R)
• M6: 2,289,745 km (0.074 R)
• M7: 2,701,588 km (0.092 R)
• M8: 3,388,093 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 933.8

Radius: 11

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 0.97 AU - 1.07 AU

Year: 665 Days

Day: 13.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,322,808 km

• M1: 136,732 km (0.088 R)
• M2: 514,617 km (0.117 R)
• M3: 919,429 km (0.084 R)
• M4: 1,534,725 km (0.082 R)
• M5: 1,882,689 km (0.093 R)
• M6: 2,462,830 km (0.084 R)
• M7: 2,909,379 km (0.062 R)
• M8: 3,803,526 km (0.047 R)
• M9: 4,872,103 km (0.097 R)
• M10: 6,029,393 km (0.088 R)
• M11: 6,439,440 km (0.035 R)
• M12: 7,000,283 km (0.111 R)
• M13: 7,664,049 km (0.098 R)

Asteroid Belt

Center: 2.03 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.9

Radius: 11.3

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 2.59 AU - 3.47 AU

Year: 3405 Days

Day: 5.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 47.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,322,808 km

• M1: 140,472 km (0.102 R)
• M2: 547,379 km (0.108 R)
• M3: 919,877 km (0.069 R)
• M4: 1,558,511 km (0.065 R)
• M5: 1,909,916 km (0.079 R)
• M6: 2,846,847 km (0.06 R)
• M7: 4,322,331 km (0.037 R)
• M8: 5,153,796 km (0.117 R)
• M9: 7,781,782 km (0.056 R)
• M10: 8,206,640 km (0.076 R)
• M11: 9,258,911 km (0.055 R)
• M12: 10,196,890 km (0.095 R)
• M13: 12,224,091 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.4

Radius: 10.8

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.58 AU - 3.62 AU

Year: 3524 Days

Day: 13.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,322,808 km

• M1: 134,339 km (0.064 R)
• M2: 501,153 km (0.078 R)
• M3: 904,469 km (0.03 R)
• M4: 1,332,468 km (0.118 R)
• M5: 1,869,973 km (0.064 R)
• M6: 2,980,139 km (0.116 R)
• M7: 3,364,307 km (0.044 R)
• M8: 4,100,926 km (0.102 R)
• M9: 4,601,780 km (0.109 R)
• M10: 5,117,743 km (0.042 R)
• M11: 6,745,817 km (0.102 R)
• M12: 7,314,887 km (0.118 R)
• M13: 7,915,822 km (0.1 R)
• M14: 8,878,484 km (0.051 R)
• M15: 10,363,392 km (0.091 R)
• M16: 12,939,468 km (0.112 R)
• M17: 13,620,138 km (0.066 R)
• M18: 14,842,353 km (0.115 R)
• M19: 15,970,470 km (0.102 R)
• M20: 19,888,738 km (0.079 R)
• M21: 21,594,303 km (0.068 R)
• M22: 22,206,757 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 887.7

Radius: 8

Gravity: 13.87 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 9.52 AU - 9.58 AU

Year: 19055 Days

Day: 19 Hours

Environment

Temp: -220 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 80,322,808 km

• M1: 99,483 km (0.109 R)
• M2: 422,016 km (0.11 R)
• M3: 703,559 km (0.116 R)
• M4: 1,153,998 km (0.09 R)
• M5: 1,879,548 km (0.116 R)
• M6: 3,336,781 km (0.088 R)
• M7: 4,196,071 km (0.115 R)
• M8: 4,749,284 km (0.099 R)
• M9: 5,157,087 km (0.082 R)
• M10: 5,916,596 km (0.107 R)
• M11: 7,656,269 km (0.086 R)
• M12: 8,375,536 km (0.09 R)
• M13: 11,121,255 km (0.033 R)
• M14: 11,575,883 km (0.091 R)
• M15: 12,042,928 km (0.071 R)
• M16: 12,591,952 km (0.119 R)
• M17: 15,590,641 km (0.119 R)
• M18: 17,688,901 km (0.083 R)
• M19: 22,540,061 km (0.116 R)
• M20: 23,268,303 km (0.101 R)
• M21: 27,616,066 km (0.091 R)
• M22: 33,271,314 km (0.093 R)
• M23: 50,241,248 km (0.11 R)
• M24: 51,482,910 km (0.105 R)
• M25: 52,563,306 km (0.042 R)
• M26: 53,109,189 km (0.075 R)
• M27: 53,475,105 km (0.077 R)
• M28: 54,027,271 km (0.068 R)
• M29: 60,952,904 km (0.111 R)
• M30: 62,976,664 km (0.074 R)
• M31: 69,098,359 km (0.097 R)
• M32: 69,753,448 km (0.118 R)
• M33: 71,298,046 km (0.118 R)
• M34: 74,684,194 km (0.084 R)
• M35: 79,842,478 km (0.078 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: 485 - 12,148 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit