🌌 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: 4.79

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.57 AU - 0.69 AU

Year: 328 Days

Day: 37.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 17.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 800.2

Radius: 11.9

Gravity: 5.65 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.72 AU - 0.82 AU

Year: 443 Days

Day: 12 Hours

Environment

Temp: -137 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,995,742 km

• M1: 148,251 km (0.111 R)
• M2: 558,150 km (0.034 R)
• M3: 962,214 km (0.053 R)
• M4: 1,334,114 km (0.085 R)
• M5: 1,867,281 km (0.069 R)
• M6: 2,357,962 km (0.107 R)
• M7: 2,826,502 km (0.057 R)
• M8: 3,285,768 km (0.05 R)
• M9: 4,214,022 km (0.055 R)
• M10: 5,050,873 km (0.07 R)
• M11: 5,425,316 km (0.081 R)
• M12: 5,853,465 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.4

Radius: 9.7

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.7 AU - 0.98 AU

Year: 505 Days

Day: 13.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 73,995,742 km

• M1: 131,646 km (0.04 R)
• M2: 600,935 km (0.09 R)
• M3: 958,474 km (0.086 R)
• M4: 1,271,731 km (0.069 R)
• M5: 2,846,099 km (0.117 R)
• M6: 3,714,515 km (0.109 R)
• M7: 4,534,311 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 396

Radius: 13.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.1 AU - 1.54 AU

Year: 995 Days

Day: 10.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 73,995,742 km

• M1: 169,195 km (0.04 R)
• M2: 683,213 km (0.069 R)
• M3: 2,095,567 km (0.065 R)
• M4: 2,765,317 km (0.108 R)
• M5: 3,228,172 km (0.115 R)
• M6: 3,786,023 km (0.064 R)
• M7: 4,391,894 km (0.113 R)
• M8: 5,496,076 km (0.114 R)
• M9: 5,955,192 km (0.096 R)
• M10: 6,419,095 km (0.079 R)
• M11: 7,535,095 km (0.101 R)
• M12: 8,151,887 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 480

Radius: 11.6

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.66 AU - 1.86 AU

Year: 1532 Days

Day: 9.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 73,995,742 km

• M1: 144,811 km (0.12 R)
• M2: 678,576 km (0.1 R)
• M3: 1,062,294 km (0.107 R)
• M4: 1,686,118 km (0.113 R)
• M5: 2,386,385 km (0.076 R)
• M6: 2,851,186 km (0.063 R)
• M7: 3,734,262 km (0.106 R)
• M8: 4,364,518 km (0.095 R)
• M9: 5,389,562 km (0.055 R)
• M10: 6,127,529 km (0.112 R)
• M11: 8,240,449 km (0.028 R)
• M12: 9,250,085 km (0.109 R)
• M13: 10,308,191 km (0.102 R)
• M14: 10,900,150 km (0.026 R)
• M15: 11,901,408 km (0.064 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.1

Radius: 11.9

Gravity: 4.29 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 4.31 AU - 4.61 AU

Year: 6179 Days

Day: 13.1 Hours

Environment

Temp: -218 °C

Axial Tilt: 14.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 73,995,742 km

• M1: 148,102 km (0.101 R)
• M2: 607,667 km (0.097 R)
• M3: 1,227,451 km (0.048 R)
• M4: 1,738,626 km (0.089 R)
• M5: 2,923,142 km (0.033 R)
• M6: 4,743,150 km (0.075 R)
• M7: 5,355,155 km (0.064 R)
• M8: 6,241,672 km (0.093 R)
• M9: 7,117,418 km (0.115 R)
• M10: 7,548,409 km (0.103 R)
• M11: 8,865,170 km (0.079 R)
• M12: 9,535,368 km (0.119 R)
• M13: 10,930,219 km (0.103 R)
• M14: 12,820,089 km (0.067 R)
• M15: 17,495,022 km (0.103 R)
• M16: 21,670,000 km (0.117 R)
• M17: 22,121,037 km (0.108 R)
• M18: 22,578,208 km (0.051 R)
• M19: 23,041,812 km (0.103 R)
• M20: 23,828,398 km (0.08 R)
• M21: 26,041,997 km (0.104 R)
• M22: 32,218,594 km (0.115 R)

Asteroid Belt

Center: 5.07 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.6

Radius: 9

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 5.02 AU - 6.34 AU

Year: 8880 Days

Day: 12.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 73,995,742 km

• M1: 112,797 km (0.103 R)
• M2: 396,434 km (0.099 R)
• M3: 681,418 km (0.095 R)
• M4: 1,014,722 km (0.109 R)
• M5: 1,350,420 km (0.089 R)
• M6: 2,041,861 km (0.055 R)
• M7: 2,793,740 km (0.095 R)
• M8: 3,510,164 km (0.103 R)
• M9: 4,086,116 km (0.118 R)
• M10: 5,095,902 km (0.093 R)
• M11: 6,230,003 km (0.091 R)
• M12: 6,678,348 km (0.069 R)
• M13: 6,964,828 km (0.05 R)
• M14: 7,410,031 km (0.053 R)
• M15: 7,953,371 km (0.079 R)
• M16: 9,075,953 km (0.093 R)
• M17: 9,427,957 km (0.04 R)
• M18: 10,206,464 km (0.108 R)
• M19: 11,683,893 km (0.048 R)
• M20: 12,206,737 km (0.07 R)
• M21: 14,574,273 km (0.086 R)
• M22: 15,180,145 km (0.119 R)
• M23: 16,834,099 km (0.104 R)
• M24: 18,116,452 km (0.06 R)
• M25: 19,462,683 km (0.077 R)
• M26: 20,874,438 km (0.09 R)
• M27: 21,800,449 km (0.109 R)
• M28: 27,848,242 km (0.038 R)
• M29: 32,618,469 km (0.118 R)
• M30: 34,075,253 km (0.086 R)
• M31: 35,142,036 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 802.9

Radius: 7.1

Gravity: 15.93 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 5.41 AU - 6.45 AU

Year: 9473 Days

Day: 16.5 Hours

Environment

Temp: -215 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 73,995,742 km

• M1: 92,152 km (0.066 R)
• M2: 680,371 km (0.116 R)
• M3: 963,410 km (0.056 R)
• M4: 1,415,345 km (0.045 R)
• M5: 2,069,088 km (0.08 R)
• M6: 2,695,604 km (0.094 R)
• M7: 3,903,308 km (0.036 R)
• M8: 4,205,047 km (0.106 R)
• M9: 4,732,529 km (0.105 R)
• M10: 5,012,277 km (0.067 R)
• M11: 5,270,333 km (0.118 R)
• M12: 5,537,216 km (0.112 R)
• M13: 6,134,261 km (0.054 R)
• M14: 6,429,716 km (0.109 R)
• M15: 7,750,366 km (0.115 R)
• M16: 8,542,338 km (0.081 R)
• M17: 8,818,046 km (0.054 R)
• M18: 9,242,605 km (0.033 R)
• M19: 9,930,157 km (0.107 R)
• M20: 10,970,760 km (0.096 R)
• M21: 12,547,372 km (0.085 R)
• M22: 14,986,864 km (0.088 R)
• M23: 15,253,597 km (0.068 R)
• M24: 19,726,274 km (0.107 R)
• M25: 20,046,863 km (0.074 R)
• M26: 22,563,398 km (0.104 R)
• M27: 25,189,140 km (0.089 R)
• M28: 28,416,714 km (0.109 R)
• M29: 29,760,552 km (0.089 R)
• M30: 31,909,974 km (0.053 R)
• M31: 33,135,180 km (0.076 R)
• M32: 37,978,561 km (0.109 R)
• M33: 38,350,461 km (0.071 R)
• M34: 45,188,430 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 889.6

Radius: 4.4

Gravity: 45.95 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.25 AU - 8.95 AU

Year: 13745 Days

Day: 16.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 73,995,742 km

• M1: 59,839 km (0.06 R)
• M2: 203,304 km (0.089 R)
• M3: 483,949 km (0.097 R)
• M4: 790,475 km (0.066 R)
• M5: 936,483 km (0.049 R)
• M6: 1,613,862 km (0.085 R)
• M7: 1,979,030 km (0.081 R)
• M8: 2,439,941 km (0.104 R)
• M9: 2,684,085 km (0.1 R)
• M10: 2,944,535 km (0.104 R)
• M11: 3,300,129 km (0.107 R)
• M12: 3,655,274 km (0.097 R)
• M13: 5,048,330 km (0.109 R)
• M14: 8,128,849 km (0.102 R)
• M15: 8,775,112 km (0.096 R)
• M16: 9,084,779 km (0.103 R)
• M17: 9,508,740 km (0.077 R)
• M18: 11,097,170 km (0.111 R)
• M19: 12,592,550 km (0.113 R)
• M20: 14,572,478 km (0.04 R)
• M21: 15,153,068 km (0.046 R)
• M22: 17,146,758 km (0.056 R)
• M23: 19,222,130 km (0.025 R)
• M24: 20,186,288 km (0.039 R)
• M25: 21,645,316 km (0.111 R)
• M26: 22,305,342 km (0.116 R)
• M27: 24,568,010 km (0.043 R)
• M28: 25,389,751 km (0.081 R)
• M29: 28,075,182 km (0.067 R)
• M30: 35,930,566 km (0.109 R)
• M31: 43,178,882 km (0.116 R)
• M32: 46,362,774 km (0.112 R)
• M33: 46,986,447 km (0.079 R)
• M34: 49,213,361 km (0.12 R)
• M35: 53,192,814 km (0.109 R)
• M36: 59,372,553 km (0.058 R)
• M37: 61,972,863 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.7

Radius: 4.5

Gravity: 26.16 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 9.66 AU - 11.02 AU

Year: 21812 Days

Day: 19.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 73,995,742 km

• M1: 55,950 km (0.119 R)
• M2: 241,900 km (0.102 R)
• M3: 394,190 km (0.117 R)
• M4: 563,086 km (0.111 R)
• M5: 711,787 km (0.092 R)
• M6: 854,054 km (0.087 R)
• M7: 1,325,736 km (0.028 R)
• M8: 2,367,087 km (0.074 R)
• M9: 2,786,260 km (0.117 R)
• M10: 3,681,005 km (0.045 R)
• M11: 3,923,952 km (0.065 R)
• M12: 6,615,667 km (0.114 R)
• M13: 7,732,564 km (0.075 R)
• M14: 9,864,184 km (0.093 R)
• M15: 10,452,553 km (0.116 R)
• M16: 14,858,809 km (0.046 R)
• M17: 15,788,559 km (0.115 R)
• M18: 17,004,491 km (0.082 R)
• M19: 19,989,118 km (0.119 R)
• M20: 26,408,213 km (0.113 R)
• M21: 29,175,923 km (0.065 R)
• M22: 29,534,958 km (0.115 R)
• M23: 31,124,735 km (0.085 R)
• M24: 32,770,610 km (0.07 R)
• M25: 38,915,642 km (0.102 R)
• M26: 40,973,361 km (0.059 R)
• M27: 41,574,295 km (0.092 R)
• M28: 44,194,203 km (0.102 R)
• M29: 45,785,476 km (0.117 R)
• M30: 46,921,971 km (0.112 R)
• M31: 48,745,569 km (0.103 R)
• M32: 49,082,164 km (0.115 R)
• M33: 49,930,234 km (0.039 R)
• M34: 53,064,609 km (0.091 R)
• M35: 54,861,429 km (0.114 R)
• M36: 56,512,840 km (0.119 R)
• M37: 56,698,341 km (0.044 R)
• M38: 61,077,968 km (0.117 R)
• M39: 71,365,664 km (0.111 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 476 - 20,467 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit