🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.58

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.41 AU - 0.65 AU

Year: 145 Days

Day: 25.4 Hours

Environment

Temp: 228 °C

Axial Tilt: 19.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 58,469,085 km

• M1: 83,625 km (0.084 R)
• M2: 375,341 km (0.056 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.88 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.88

Radius: 1.53

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.79 AU - 0.97 AU

Year: 309 Days

Day: 31.8 Hours

Environment

Temp: 41 °C

Axial Tilt: 38.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.78 AU - 1.04 AU

Year: 325 Days

Day: 41.8 Hours

Environment

Temp: 20 °C

Axial Tilt: 13.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.78 AU - 1.14 AU

Year: 352 Days

Day: 45.3 Hours

Environment

Temp: 15 °C

Axial Tilt: 102.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.79 AU - 1.17 AU

Year: 364 Days

Day: 47.6 Hours

Environment

Temp: 18 °C

Axial Tilt: 36.7 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.4 AU - 1.62 AU

Year: 695 Days

Day: 33.6 Hours

Environment

Temp: -48 °C

Axial Tilt: 12.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 2.27 AU - 2.37 AU

Year: 1324 Days

Day: 34.7 Hours

Environment

Temp: -82 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,469,085 km

• M1: 864,975 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.9

Radius: 8.9

Gravity: 9.83 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 4.92 AU - 6.6 AU

Year: 5180 Days

Day: 12.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (87)

Outer Limit: 58,469,085 km

• M1: 536,907 km (0.096 R)
• M2: 631,303 km (0.101 R)
• M3: 744,997 km (0.079 R)
• M4: 993,479 km (0.071 R)
• M5: 1,514,978 km (0.118 R)
• M6: 1,705,865 km (0.054 R)
• M7: 1,923,230 km (0.083 R)
• M8: 2,246,511 km (0.074 R)
• M9: 2,858,666 km (0.119 R)
• M10: 2,944,086 km (0.107 R)
• M11: 3,183,443 km (0.09 R)
• M12: 3,657,967 km (0.092 R)
• M13: 3,727,680 km (0.041 R)
• M14: 3,797,692 km (0.092 R)
• M15: 4,276,255 km (0.094 R)
• M16: 4,799,100 km (0.083 R)
• M17: 4,875,544 km (0.089 R)
• M18: 5,003,750 km (0.105 R)
• M19: 5,185,062 km (0.067 R)
• M20: 5,634,604 km (0.072 R)
• M21: 5,959,530 km (0.049 R)
• M22: 6,207,264 km (0.119 R)
• M23: 6,655,908 km (0.106 R)
• M24: 7,378,017 km (0.083 R)
• M25: 7,943,348 km (0.117 R)
• M26: 8,185,547 km (0.092 R)
• M27: 8,338,286 km (0.049 R)
• M28: 8,491,774 km (0.11 R)
• M29: 8,677,424 km (0.08 R)
• M30: 9,178,727 km (0.074 R)
• M31: 9,464,908 km (0.094 R)
• M32: 9,818,707 km (0.108 R)
• M33: 10,308,191 km (0.117 R)
• M34: 10,406,925 km (0.044 R)
• M35: 10,506,109 km (0.107 R)
• M36: 10,872,474 km (0.09 R)
• M37: 11,378,713 km (0.079 R)
• M38: 12,030,960 km (0.08 R)
• M39: 12,135,080 km (0.105 R)
• M40: 12,309,212 km (0.096 R)
• M41: 12,519,397 km (0.069 R)
• M42: 12,660,169 km (0.116 R)
• M43: 13,335,902 km (0.086 R)
• M44: 13,551,622 km (0.101 R)
• M45: 13,623,878 km (0.069 R)
• M46: 14,426,471 km (0.088 R)
• M47: 14,574,124 km (0.103 R)
• M48: 16,000,988 km (0.064 R)
• M49: 16,460,852 km (0.071 R)
• M50: 17,511,328 km (0.118 R)
• M51: 17,668,855 km (0.052 R)
• M52: 17,905,818 km (0.067 R)
• M53: 18,423,277 km (0.06 R)
• M54: 18,985,765 km (0.04 R)
• M55: 19,188,171 km (0.113 R)
• M56: 19,391,175 km (0.056 R)
• M57: 20,582,722 km (0.055 R)
• M58: 21,040,941 km (0.116 R)
• M59: 21,460,263 km (0.084 R)
• M60: 21,544,487 km (0.108 R)
• M61: 21,797,906 km (0.108 R)
• M62: 22,563,697 km (0.09 R)
• M63: 23,122,296 km (0.069 R)
• M64: 23,295,081 km (0.073 R)
• M65: 23,381,698 km (0.113 R)
• M66: 24,253,256 km (0.042 R)
• M67: 25,002,442 km (0.119 R)
• M68: 25,803,838 km (0.119 R)
• M69: 26,794,923 km (0.098 R)
• M70: 26,885,580 km (0.108 R)
• M71: 27,067,341 km (0.1 R)
• M72: 27,340,656 km (0.065 R)
• M73: 28,028,059 km (0.11 R)
• M74: 28,120,211 km (0.079 R)
• M75: 28,304,665 km (0.093 R)
• M76: 28,535,794 km (0.052 R)
• M77: 28,814,046 km (0.11 R)
• M78: 28,999,996 km (0.099 R)
• M79: 29,419,917 km (0.094 R)
• M80: 29,654,038 km (0.12 R)
• M81: 29,794,959 km (0.076 R)
• M82: 29,983,004 km (0.068 R)
• M83: 30,171,497 km (0.115 R)
• M84: 31,741,227 km (0.059 R)
• M85: 32,029,503 km (0.088 R)
• M86: 32,125,844 km (0.076 R)
• M87: 32,270,505 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 18.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.3

Radius: 4.8

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 17.92 AU - 18.2 AU

Year: 28761 Days

Day: 20 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (55)

Outer Limit: 58,469,085 km

• M1: 118,033 km (0.076 R)
• M2: 394,041 km (0.111 R)
• M3: 544,536 km (0.099 R)
• M4: 833,709 km (0.114 R)
• M5: 961,466 km (0.037 R)
• M6: 2,161,689 km (0.03 R)
• M7: 2,307,846 km (0.112 R)
• M8: 3,185,088 km (0.064 R)
• M9: 3,555,343 km (0.119 R)
• M10: 3,589,601 km (0.101 R)
• M11: 5,166,811 km (0.066 R)
• M12: 5,481,116 km (0.034 R)
• M13: 6,086,838 km (0.118 R)
• M14: 6,502,421 km (0.117 R)
• M15: 6,884,344 km (0.117 R)
• M16: 8,027,721 km (0.064 R)
• M17: 8,482,947 km (0.08 R)
• M18: 8,575,100 km (0.09 R)
• M19: 8,899,877 km (0.098 R)
• M20: 9,275,966 km (0.049 R)
• M21: 10,386,131 km (0.059 R)
• M22: 11,793,099 km (0.028 R)
• M23: 12,205,989 km (0.074 R)
• M24: 13,152,196 km (0.093 R)
• M25: 14,230,946 km (0.052 R)
• M26: 14,615,114 km (0.04 R)
• M27: 15,618,766 km (0.058 R)
• M28: 16,529,368 km (0.087 R)
• M29: 18,880,149 km (0.108 R)
• M30: 19,000,426 km (0.118 R)
• M31: 20,155,471 km (0.114 R)
• M32: 21,208,191 km (0.063 R)
• M33: 22,980,477 km (0.11 R)
• M34: 23,173,159 km (0.073 R)
• M35: 23,560,169 km (0.067 R)
• M36: 32,236,097 km (0.099 R)
• M37: 33,683,157 km (0.099 R)
• M38: 34,267,786 km (0.117 R)
• M39: 35,521,566 km (0.118 R)
• M40: 35,595,766 km (0.115 R)
• M41: 36,116,666 km (0.032 R)
• M42: 37,618,928 km (0.091 R)
• M43: 38,988,347 km (0.117 R)
• M44: 40,995,052 km (0.103 R)
• M45: 41,697,415 km (0.106 R)
• M46: 42,955,981 km (0.053 R)
• M47: 45,913,681 km (0.042 R)
• M48: 45,994,464 km (0.073 R)
• M49: 46,561,739 km (0.098 R)
• M50: 47,866,980 km (0.042 R)
• M51: 48,031,089 km (0.09 R)
• M52: 48,688,871 km (0.083 R)
• M53: 48,853,877 km (0.119 R)
• M54: 53,122,054 km (0.063 R)
• M55: 57,420,899 km (0.066 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 557 - 13,230 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit