🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.31

Radius: 1.11

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.46 AU - 0.62 AU

Year: 252 Days

Day: 35.8 Hours

Environment

Temp: -126 °C

Axial Tilt: 3.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 961

Radius: 10.1

Gravity: 9.42 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 0.84 AU - 0.98 AU

Year: 552 Days

Day: 8.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 88,949,667 km

• M1: 125,662 km (0.095 R)
• M2: 450,888 km (0.074 R)
• M3: 781,948 km (0.093 R)
• M4: 1,111,213 km (0.092 R)
• M5: 1,603,390 km (0.11 R)
• M6: 1,985,014 km (0.113 R)
• M7: 2,617,963 km (0.119 R)
• M8: 3,066,308 km (0.064 R)
• M9: 4,132,791 km (0.11 R)
• M10: 4,993,427 km (0.063 R)
• M11: 6,502,421 km (0.09 R)
• M12: 6,833,332 km (0.074 R)
• M13: 7,395,072 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 214.6

Radius: 10.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.68 AU - 2.72 AU

Year: 2075 Days

Day: 7.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,949,667 km

• M1: 136,583 km (0.09 R)
• M2: 501,452 km (0.048 R)
• M3: 1,013,226 km (0.081 R)
• M4: 1,861,895 km (0.097 R)
• M5: 2,323,853 km (0.079 R)
• M6: 3,332,741 km (0.095 R)
• M7: 3,743,238 km (0.037 R)
• M8: 4,853,703 km (0.076 R)
• M9: 5,322,543 km (0.096 R)
• M10: 6,841,410 km (0.118 R)
• M11: 7,584,911 km (0.074 R)
• M12: 8,190,783 km (0.094 R)
• M13: 9,321,144 km (0.089 R)
• M14: 9,740,467 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.5

Radius: 8.8

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.96 AU - 2.62 AU

Year: 2203 Days

Day: 10.8 Hours

Environment

Temp: -188 °C

Axial Tilt: 159.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 88,949,667 km

• M1: 109,506 km (0.092 R)
• M2: 408,701 km (0.085 R)
• M3: 1,245,402 km (0.119 R)
• M4: 1,607,130 km (0.077 R)
• M5: 1,979,030 km (0.058 R)
• M6: 2,630,679 km (0.117 R)
• M7: 3,981,099 km (0.099 R)
• M8: 4,416,877 km (0.052 R)
• M9: 4,731,930 km (0.097 R)
• M10: 5,313,716 km (0.117 R)
• M11: 5,743,960 km (0.076 R)
• M12: 6,406,080 km (0.086 R)
• M13: 6,728,463 km (0.077 R)
• M14: 8,190,334 km (0.039 R)
• M15: 10,138,397 km (0.086 R)
• M16: 11,414,018 km (0.069 R)
• M17: 14,010,289 km (0.097 R)
• M18: 14,371,718 km (0.089 R)
• M19: 15,302,665 km (0.117 R)
• M20: 15,734,405 km (0.03 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 206.4

Radius: 13.6

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.63 AU - 4.41 AU

Year: 5125 Days

Day: 12.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,949,667 km

• M1: 169,195 km (0.1 R)
• M2: 617,241 km (0.114 R)
• M3: 1,066,932 km (0.065 R)
• M4: 2,342,703 km (0.083 R)
• M5: 2,829,045 km (0.073 R)
• M6: 3,830,753 km (0.106 R)
• M7: 5,544,546 km (0.1 R)
• M8: 7,629,491 km (0.098 R)
• M9: 12,222,894 km (0.111 R)
• M10: 12,659,121 km (0.103 R)
• M11: 13,936,089 km (0.063 R)
• M12: 14,703,376 km (0.049 R)
• M13: 15,701,942 km (0.044 R)
• M14: 16,905,607 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.2

Radius: 10.1

Gravity: 3.15 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 4.09 AU - 5.05 AU

Year: 6212 Days

Day: 13.8 Hours

Environment

Temp: -209 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 88,949,667 km

• M1: 125,961 km (0.106 R)
• M2: 503,397 km (0.046 R)
• M3: 945,159 km (0.104 R)
• M4: 1,302,549 km (0.089 R)
• M5: 2,377,559 km (0.116 R)
• M6: 2,752,152 km (0.057 R)
• M7: 3,339,324 km (0.063 R)
• M8: 4,590,710 km (0.089 R)
• M9: 5,472,739 km (0.072 R)
• M10: 6,713,653 km (0.104 R)
• M11: 7,570,550 km (0.116 R)
• M12: 9,540,903 km (0.042 R)
• M13: 10,030,687 km (0.11 R)
• M14: 11,283,569 km (0.071 R)
• M15: 11,831,546 km (0.066 R)
• M16: 12,445,047 km (0.066 R)
• M17: 13,684,316 km (0.095 R)
• M18: 15,666,936 km (0.092 R)
• M19: 16,062,473 km (0.109 R)
• M20: 16,522,636 km (0.082 R)
• M21: 17,956,382 km (0.111 R)
• M22: 20,326,611 km (0.069 R)
• M23: 21,760,955 km (0.08 R)
• M24: 22,182,821 km (0.118 R)
• M25: 22,682,029 km (0.12 R)
• M26: 23,776,786 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.4

Radius: 9.1

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.68 AU - 6.04 AU

Year: 6812 Days

Day: 11.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 88,949,667 km

• M1: 113,096 km (0.117 R)
• M2: 398,529 km (0.072 R)
• M3: 1,022,950 km (0.057 R)
• M4: 1,364,781 km (0.039 R)
• M5: 1,744,012 km (0.097 R)
• M6: 3,384,801 km (0.112 R)
• M7: 3,724,538 km (0.082 R)
• M8: 4,204,897 km (0.063 R)
• M9: 4,935,832 km (0.116 R)
• M10: 6,079,657 km (0.066 R)
• M11: 6,519,176 km (0.042 R)
• M12: 7,183,690 km (0.114 R)
• M13: 9,163,169 km (0.083 R)
• M14: 15,335,876 km (0.107 R)
• M15: 15,798,283 km (0.105 R)
• M16: 16,509,322 km (0.107 R)
• M17: 18,574,820 km (0.106 R)
• M18: 20,947,741 km (0.087 R)
• M19: 23,821,965 km (0.078 R)
• M20: 24,914,777 km (0.087 R)
• M21: 25,715,724 km (0.12 R)
• M22: 26,865,534 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 773.2

Radius: 7.7

Gravity: 13.04 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 9.47 AU - 10.01 AU

Year: 19327 Days

Day: 17.3 Hours

Environment

Temp: -233 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 88,949,667 km

• M1: 96,341 km (0.037 R)
• M2: 341,382 km (0.071 R)
• M3: 696,079 km (0.085 R)
• M4: 942,018 km (0.109 R)
• M5: 1,567,935 km (0.091 R)
• M6: 2,290,194 km (0.034 R)
• M7: 3,614,733 km (0.055 R)
• M8: 5,120,286 km (0.1 R)
• M9: 8,023,532 km (0.072 R)
• M10: 8,489,679 km (0.11 R)
• M11: 10,056,418 km (0.116 R)
• M12: 14,343,593 km (0.096 R)
• M13: 15,500,284 km (0.099 R)
• M14: 18,350,572 km (0.082 R)
• M15: 19,898,761 km (0.111 R)
• M16: 24,845,962 km (0.053 R)
• M17: 28,247,519 km (0.059 R)
• M18: 31,436,347 km (0.097 R)
• M19: 31,691,112 km (0.114 R)
• M20: 35,957,643 km (0.086 R)
• M21: 40,894,373 km (0.056 R)
• M22: 43,840,703 km (0.119 R)
• M23: 51,730,944 km (0.034 R)
• M24: 53,887,098 km (0.05 R)
• M25: 57,803,271 km (0.106 R)
• M26: 60,516,976 km (0.088 R)
• M27: 69,597,118 km (0.115 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 732.8

Radius: 6.6

Gravity: 16.82 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 10.09 AU - 12.69 AU

Year: 24441 Days

Day: 22.6 Hours

Environment

Temp: -234 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 88,949,667 km

• M1: 82,129 km (0.092 R)
• M2: 347,366 km (0.115 R)
• M3: 1,326,036 km (0.11 R)
• M4: 1,930,261 km (0.058 R)
• M5: 2,317,421 km (0.118 R)
• M6: 3,513,605 km (0.031 R)
• M7: 3,991,122 km (0.1 R)
• M8: 4,693,932 km (0.068 R)
• M9: 5,642,532 km (0.111 R)
• M10: 8,564,029 km (0.083 R)
• M11: 8,788,576 km (0.114 R)
• M12: 9,017,311 km (0.095 R)
• M13: 9,308,578 km (0.04 R)
• M14: 12,150,040 km (0.119 R)
• M15: 13,237,616 km (0.117 R)
• M16: 14,153,455 km (0.08 R)
• M17: 16,713,523 km (0.092 R)
• M18: 18,519,917 km (0.104 R)
• M19: 20,452,422 km (0.081 R)
• M20: 20,955,819 km (0.062 R)
• M21: 23,487,614 km (0.079 R)
• M22: 29,658,376 km (0.049 R)
• M23: 30,044,040 km (0.094 R)
• M24: 30,694,491 km (0.119 R)
• M25: 31,888,731 km (0.104 R)
• M26: 32,701,945 km (0.113 R)
• M27: 36,386,092 km (0.047 R)
• M28: 40,653,072 km (0.111 R)
• M29: 42,092,353 km (0.097 R)
• M30: 46,613,799 km (0.068 R)
• M31: 51,263,600 km (0.12 R)
• M32: 54,657,826 km (0.108 R)
• M33: 58,198,957 km (0.116 R)
• M34: 58,803,632 km (0.059 R)
• M35: 59,209,192 km (0.071 R)
• M36: 60,025,547 km (0.104 R)
• M37: 63,154,237 km (0.083 R)
• M38: 73,423,981 km (0.107 R)
• M39: 77,971,607 km (0.047 R)
• M40: 88,417,578 km (0.112 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 183 - 19,485 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit