🌌 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: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.59 AU - 0.67 AU

Year: 323 Days

Day: 34 Hours

Environment

Temp: -139 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.5

Radius: 12.6

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.64 AU - 0.76 AU

Year: 378 Days

Day: 8.8 Hours

Environment

Temp: -143 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 35,538,078 km

• M1: 156,779 km (0.068 R)
• M2: 593,754 km (0.099 R)
• M3: 1,008,290 km (0.082 R)
• M4: 1,420,133 km (0.058 R)
• M5: 1,919,789 km (0.096 R)
• M6: 2,390,424 km (0.108 R)
• M7: 2,984,178 km (0.087 R)
• M8: 3,485,032 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.2

Radius: 9

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.86 AU - 0.88 AU

Year: 524 Days

Day: 11.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,538,078 km

• M1: 112,049 km (0.084 R)
• M2: 402,418 km (0.042 R)
• M3: 691,890 km (0.038 R)
• M4: 1,084,285 km (0.085 R)
• M5: 1,445,714 km (0.099 R)
• M6: 1,830,330 km (0.117 R)
• M7: 2,199,238 km (0.074 R)
• M8: 2,711,611 km (0.063 R)
• M9: 3,146,642 km (0.099 R)
• M10: 3,575,988 km (0.083 R)
• M11: 3,947,289 km (0.09 R)
• M12: 4,925,510 km (0.099 R)
• M13: 5,454,488 km (0.109 R)
• M14: 5,911,659 km (0.112 R)
• M15: 6,451,558 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 765.3

Radius: 13.5

Gravity: 4.2 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.29 AU - 1.29 AU

Year: 946 Days

Day: 14.8 Hours

Environment

Temp: -166 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,538,078 km

• M1: 167,849 km (0.082 R)
• M2: 603,478 km (0.115 R)
• M3: 1,407,417 km (0.083 R)
• M4: 1,848,730 km (0.1 R)
• M5: 2,462,381 km (0.072 R)
• M6: 3,195,859 km (0.089 R)
• M7: 4,055,149 km (0.075 R)
• M8: 4,951,690 km (0.11 R)
• M9: 5,606,629 km (0.114 R)
• M10: 6,039,565 km (0.094 R)
• M11: 6,629,280 km (0.041 R)
• M12: 7,114,276 km (0.077 R)
• M13: 7,598,076 km (0.119 R)
• M14: 8,338,885 km (0.09 R)
• M15: 8,767,931 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 706.1

Radius: 8

Gravity: 11.03 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 1.99 AU - 2.23 AU

Year: 1979 Days

Day: 10.4 Hours

Environment

Temp: -201 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 35,538,078 km

• M1: 99,483 km (0.117 R)
• M2: 351,854 km (0.105 R)
• M3: 640,129 km (0.036 R)
• M4: 1,319,004 km (0.081 R)
• M5: 1,711,100 km (0.083 R)
• M6: 2,397,605 km (0.081 R)
• M7: 3,239,093 km (0.065 R)
• M8: 4,444,403 km (0.109 R)
• M9: 4,734,473 km (0.099 R)
• M10: 5,422,025 km (0.092 R)
• M11: 5,973,742 km (0.09 R)
• M12: 6,776,185 km (0.116 R)
• M13: 7,273,897 km (0.082 R)
• M14: 7,795,844 km (0.099 R)
• M15: 8,979,612 km (0.048 R)
• M16: 9,276,714 km (0.083 R)
• M17: 9,821,100 km (0.054 R)
• M18: 10,243,116 km (0.069 R)
• M19: 11,237,194 km (0.058 R)
• M20: 11,777,242 km (0.078 R)
• M21: 14,156,447 km (0.072 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.1

Radius: 14.3

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 2.43 AU - 3.95 AU

Year: 3679 Days

Day: 10 Hours

Environment

Temp: -203 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 35,538,078 km

• M1: 177,872 km (0.049 R)
• M2: 667,356 km (0.12 R)
• M3: 1,117,047 km (0.082 R)
• M4: 1,573,470 km (0.108 R)
• M5: 2,653,417 km (0.029 R)
• M6: 3,512,109 km (0.065 R)
• M7: 4,160,466 km (0.099 R)
• M8: 4,887,961 km (0.101 R)
• M9: 6,093,869 km (0.116 R)
• M10: 6,628,682 km (0.062 R)
• M11: 7,423,495 km (0.112 R)
• M12: 9,014,169 km (0.118 R)
• M13: 9,591,916 km (0.087 R)
• M14: 12,108,601 km (0.11 R)
• M15: 13,744,304 km (0.113 R)
• M16: 17,216,172 km (0.094 R)
• M17: 17,926,762 km (0.114 R)
• M18: 18,533,979 km (0.071 R)
• M19: 24,930,635 km (0.102 R)
• M20: 25,458,865 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 303.9

Radius: 3.2

Gravity: 29.68 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 5.3 AU - 6.78 AU

Year: 9585 Days

Day: 17.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 35,538,078 km

• M1: 40,092 km (0.109 R)
• M2: 182,509 km (0.055 R)
• M3: 315,352 km (0.067 R)
• M4: 574,755 km (0.085 R)
• M5: 819,048 km (0.111 R)
• M6: 969,843 km (0.085 R)
• M7: 1,723,816 km (0.117 R)
• M8: 1,837,959 km (0.044 R)
• M9: 2,003,115 km (0.078 R)
• M10: 2,576,973 km (0.072 R)
• M11: 3,296,239 km (0.118 R)
• M12: 3,540,383 km (0.098 R)
• M13: 3,748,923 km (0.107 R)
• M14: 7,900,712 km (0.055 R)
• M15: 8,706,297 km (0.116 R)
• M16: 9,698,729 km (0.057 R)
• M17: 10,106,832 km (0.087 R)
• M18: 11,300,324 km (0.108 R)
• M19: 13,015,314 km (0.079 R)
• M20: 15,256,589 km (0.066 R)
• M21: 17,080,636 km (0.114 R)
• M22: 17,608,417 km (0.114 R)
• M23: 18,420,135 km (0.101 R)
• M24: 22,149,461 km (0.099 R)
• M25: 31,250,546 km (0.056 R)
• M26: 34,902,978 km (0.069 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 489 - 20,270 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit