🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.8

Radius: 9.5

Gravity: 10.91 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.52 AU - 0.66 AU

Year: 302 Days

Day: 13.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 24,071,280 km

• M1: 118,182 km (0.093 R)
• M2: 439,219 km (0.107 R)
• M3: 790,774 km (0.101 R)
• M4: 1,114,055 km (0.071 R)
• M5: 1,438,084 km (0.109 R)
• M6: 1,885,532 km (0.086 R)
• M7: 3,191,820 km (0.118 R)
• M8: 3,674,423 km (0.11 R)
• M9: 3,984,390 km (0.119 R)
• M10: 4,285,081 km (0.097 R)
• M11: 4,600,883 km (0.118 R)
• M12: 4,947,052 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.1

Radius: 8.2

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.99 AU - 1.07 AU

Year: 697 Days

Day: 11.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 128 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 24,071,280 km

• M1: 102,026 km (0.105 R)
• M2: 453,282 km (0.103 R)
• M3: 714,629 km (0.09 R)
• M4: 1,371,064 km (0.072 R)
• M5: 1,720,675 km (0.09 R)
• M6: 2,695,305 km (0.095 R)
• M7: 3,345,607 km (0.039 R)
• M8: 3,916,173 km (0.108 R)
• M9: 4,923,266 km (0.035 R)
• M10: 6,112,270 km (0.092 R)
• M11: 6,470,856 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.9

Radius: 14.2

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.13 AU - 2.31 AU

Year: 2206 Days

Day: 12.6 Hours

Environment

Temp: -194 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 24,071,280 km

• M1: 176,675 km (0.056 R)
• M2: 653,294 km (0.064 R)
• M3: 1,373,907 km (0.089 R)
• M4: 2,179,043 km (0.099 R)
• M5: 3,067,953 km (0.055 R)
• M6: 3,706,437 km (0.059 R)
• M7: 4,687,948 km (0.078 R)
• M8: 5,394,200 km (0.109 R)
• M9: 6,118,403 km (0.114 R)
• M10: 8,009,769 km (0.084 R)
• M11: 8,686,251 km (0.058 R)
• M12: 9,790,433 km (0.101 R)
• M13: 13,398,883 km (0.109 R)
• M14: 15,159,650 km (0.071 R)
• M15: 16,247,077 km (0.071 R)
• M16: 18,411,758 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 436.7

Radius: 8.1

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.16 AU - 3.46 AU

Year: 3141 Days

Day: 9.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 24,071,280 km

• M1: 101,128 km (0.057 R)
• M2: 704,756 km (0.044 R)
• M3: 1,629,570 km (0.107 R)
• M4: 2,630,978 km (0.036 R)
• M5: 2,923,741 km (0.084 R)
• M6: 3,539,037 km (0.065 R)
• M7: 4,237,659 km (0.064 R)
• M8: 4,490,030 km (0.104 R)
• M9: 4,933,139 km (0.032 R)
• M10: 6,887,486 km (0.105 R)
• M11: 9,099,290 km (0.074 R)
• M12: 10,671,115 km (0.102 R)
• M13: 14,674,654 km (0.079 R)
• M14: 15,402,447 km (0.081 R)
• M15: 16,052,300 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.9

Radius: 13.6

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2.91 AU - 3.53 AU

Year: 3853 Days

Day: 8.6 Hours

Environment

Temp: -211 °C

Axial Tilt: 2.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,071,280 km

• M1: 169,644 km (0.065 R)
• M2: 691,591 km (0.115 R)
• M3: 1,436,439 km (0.118 R)
• M4: 2,219,434 km (0.093 R)
• M5: 2,981,486 km (0.047 R)
• M6: 4,013,412 km (0.117 R)
• M7: 6,181,683 km (0.118 R)
• M8: 7,286,463 km (0.107 R)
• M9: 9,293,618 km (0.119 R)
• M10: 11,858,922 km (0.053 R)
• M11: 13,189,446 km (0.066 R)
• M12: 13,654,546 km (0.078 R)
• M13: 19,880,510 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 11.8

Radius: 12.9

Gravity: 0.07 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 3.16 AU - 4.56 AU

Year: 5057 Days

Day: 12.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 24,071,280 km

• M1: 160,519 km (0.088 R)
• M2: 1,022,352 km (0.086 R)
• M3: 3,688,336 km (0.051 R)
• M4: 4,342,677 km (0.106 R)
• M5: 5,142,277 km (0.046 R)
• M6: 5,865,882 km (0.099 R)
• M7: 6,970,662 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 235.4

Radius: 6.4

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 5.95 AU - 6.25 AU

Year: 10047 Days

Day: 15.4 Hours

Environment

Temp: -218 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 24,071,280 km

• M1: 79,885 km (0.042 R)
• M2: 321,187 km (0.093 R)
• M3: 755,768 km (0.113 R)
• M4: 1,595,461 km (0.108 R)
• M5: 2,446,524 km (0.117 R)
• M6: 2,807,204 km (0.117 R)
• M7: 3,414,422 km (0.118 R)
• M8: 5,195,833 km (0.101 R)
• M9: 6,236,586 km (0.119 R)
• M10: 8,481,002 km (0.047 R)
• M11: 10,139,744 km (0.098 R)
• M12: 10,412,909 km (0.116 R)
• M13: 12,054,297 km (0.071 R)
• M14: 14,197,586 km (0.09 R)
• M15: 15,719,445 km (0.12 R)
• M16: 17,025,584 km (0.066 R)
• M17: 24,410,333 km (0.028 R)
• M18: 26,499,617 km (0.084 R)
• M19: 32,385,246 km (0.105 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 851.6

Radius: 7.8

Gravity: 14 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.64 AU - 8.68 AU

Year: 14138 Days

Day: 18.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 24,071,280 km

• M1: 96,939 km (0.104 R)
• M2: 697,425 km (0.119 R)
• M3: 1,197,381 km (0.052 R)
• M4: 1,597,705 km (0.086 R)
• M5: 2,490,805 km (0.059 R)
• M6: 2,782,221 km (0.111 R)
• M7: 3,570,602 km (0.057 R)
• M8: 4,183,953 km (0.081 R)
• M9: 5,848,080 km (0.073 R)
• M10: 7,176,958 km (0.097 R)
• M11: 7,538,386 km (0.093 R)
• M12: 8,495,513 km (0.1 R)
• M13: 9,857,752 km (0.114 R)
• M14: 12,292,906 km (0.059 R)
• M15: 15,029,350 km (0.106 R)
• M16: 16,695,571 km (0.071 R)
• M17: 17,573,112 km (0.105 R)
• M18: 18,481,171 km (0.084 R)
• M19: 20,211,720 km (0.116 R)
• M20: 22,619,348 km (0.094 R)
• M21: 25,523,192 km (0.082 R)
• M22: 29,923,314 km (0.086 R)
• M23: 30,506,596 km (0.098 R)
• M24: 33,788,175 km (0.119 R)
• M25: 36,896,220 km (0.055 R)
• M26: 37,297,741 km (0.062 R)
• M27: 38,656,838 km (0.06 R)
• M28: 41,618,128 km (0.085 R)
• M29: 41,907,899 km (0.092 R)
• M30: 48,147,027 km (0.08 R)
• M31: 50,576,048 km (0.113 R)
• M32: 59,078,892 km (0.067 R)
• M33: 59,812,370 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.3

Radius: 5.3

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 7.35 AU - 10.99 AU

Year: 18518 Days

Day: 23.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 24,071,280 km

• M1: 87,216 km (0.078 R)
• M2: 285,134 km (0.089 R)
• M3: 1,844,392 km (0.101 R)
• M4: 2,671,220 km (0.058 R)
• M5: 4,147,601 km (0.1 R)
• M6: 9,597,601 km (0.12 R)
• M7: 11,589,646 km (0.082 R)
• M8: 13,991,290 km (0.068 R)
• M9: 16,480,749 km (0.098 R)
• M10: 18,275,175 km (0.097 R)
• M11: 19,624,997 km (0.091 R)
• M12: 22,042,797 km (0.03 R)
• M13: 22,728,853 km (0.115 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 491 - 12,163 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit