🌌 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: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 0.62 AU - 0.66 AU

Year: 326 Days

Day: 31.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 39.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,028,254 km

• M1: 422,464 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.7

Radius: 12.7

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.86 AU - 0.88 AU

Year: 516 Days

Day: 12.8 Hours

Environment

Temp: -157 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,028,254 km

• M1: 157,975 km (0.094 R)
• M2: 569,070 km (0.065 R)
• M3: 1,507,049 km (0.045 R)
• M4: 2,058,168 km (0.065 R)
• M5: 2,505,016 km (0.114 R)
• M6: 3,396,769 km (0.097 R)
• M7: 3,971,674 km (0.105 R)
• M8: 4,459,812 km (0.12 R)
• M9: 5,036,512 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.8

Radius: 13.2

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.93 AU - 1.25 AU

Year: 724 Days

Day: 9.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,028,254 km

• M1: 164,258 km (0.091 R)
• M2: 730,337 km (0.074 R)
• M3: 1,277,865 km (0.104 R)
• M4: 2,183,680 km (0.07 R)
• M5: 2,762,175 km (0.11 R)
• M6: 3,362,362 km (0.095 R)
• M7: 3,930,385 km (0.075 R)
• M8: 4,545,830 km (0.092 R)
• M9: 6,208,012 km (0.09 R)
• M10: 7,675,418 km (0.044 R)
• M11: 8,148,147 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.2

Radius: 13.3

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.02 AU - 1.18 AU

Year: 734 Days

Day: 9.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,028,254 km

• M1: 165,455 km (0.101 R)
• M2: 623,823 km (0.068 R)
• M3: 1,054,964 km (0.069 R)
• M4: 1,473,838 km (0.111 R)
• M5: 2,432,761 km (0.107 R)
• M6: 3,174,168 km (0.096 R)
• M7: 3,641,960 km (0.099 R)
• M8: 6,139,646 km (0.107 R)
• M9: 6,650,224 km (0.061 R)
• M10: 7,660,458 km (0.118 R)
• M11: 9,010,130 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 564.2

Radius: 11.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.39 AU - 1.43 AU

Year: 1065 Days

Day: 7.6 Hours

Environment

Temp: -182 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,028,254 km

• M1: 139,575 km (0.115 R)
• M2: 516,861 km (0.029 R)
• M3: 925,113 km (0.075 R)
• M4: 1,444,068 km (0.103 R)
• M5: 1,840,802 km (0.046 R)
• M6: 3,324,364 km (0.105 R)
• M7: 3,746,978 km (0.086 R)
• M8: 4,577,695 km (0.058 R)
• M9: 5,009,285 km (0.117 R)
• M10: 6,038,518 km (0.118 R)
• M11: 7,738,847 km (0.112 R)
• M12: 8,170,886 km (0.033 R)
• M13: 9,421,225 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 250.3

Radius: 12.3

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 1.6 AU - 2.06 AU

Year: 1574 Days

Day: 12.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,028,254 km

• M1: 153,039 km (0.101 R)
• M2: 553,363 km (0.11 R)
• M3: 1,067,381 km (0.1 R)
• M4: 1,552,078 km (0.109 R)
• M5: 2,183,531 km (0.058 R)
• M6: 2,792,543 km (0.093 R)
• M7: 3,855,287 km (0.094 R)
• M8: 4,696,625 km (0.035 R)
• M9: 5,095,603 km (0.054 R)
• M10: 6,151,614 km (0.074 R)
• M11: 6,742,974 km (0.045 R)
• M12: 7,614,831 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.1

Radius: 8.2

Gravity: 1.4 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.46 AU - 2.66 AU

Year: 2604 Days

Day: 11.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,028,254 km

• M1: 102,026 km (0.061 R)
• M2: 467,344 km (0.094 R)
• M3: 1,036,264 km (0.077 R)
• M4: 2,080,458 km (0.109 R)
• M5: 2,424,383 km (0.086 R)
• M6: 3,675,470 km (0.025 R)
• M7: 4,433,183 km (0.082 R)
• M8: 5,467,204 km (0.087 R)
• M9: 7,625,751 km (0.05 R)
• M10: 8,394,685 km (0.115 R)
• M11: 8,852,903 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 989.1

Radius: 6.3

Gravity: 24.92 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.15 AU - 9.97 AU

Year: 17339 Days

Day: 23.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 69,028,254 km

• M1: 78,688 km (0.098 R)
• M2: 352,602 km (0.107 R)
• M3: 712,684 km (0.071 R)
• M4: 1,092,064 km (0.083 R)
• M5: 1,358,349 km (0.047 R)
• M6: 1,667,717 km (0.101 R)
• M7: 2,104,244 km (0.116 R)
• M8: 2,338,514 km (0.102 R)
• M9: 3,722,893 km (0.109 R)
• M10: 5,462,117 km (0.108 R)
• M11: 8,292,360 km (0.099 R)
• M12: 9,324,884 km (0.11 R)
• M13: 9,842,642 km (0.075 R)
• M14: 10,379,549 km (0.083 R)
• M15: 12,107,255 km (0.118 R)
• M16: 14,317,414 km (0.029 R)
• M17: 15,398,408 km (0.117 R)
• M18: 17,548,578 km (0.082 R)
• M19: 25,628,210 km (0.074 R)
• M20: 26,642,633 km (0.104 R)
• M21: 30,968,554 km (0.05 R)
• M22: 34,368,764 km (0.113 R)
• M23: 35,187,364 km (0.086 R)
• M24: 35,601,451 km (0.104 R)
• M25: 50,986,694 km (0.079 R)
• M26: 52,408,921 km (0.041 R)
• M27: 56,080,053 km (0.104 R)
• M28: 62,103,013 km (0.102 R)
• M29: 63,316,551 km (0.102 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 424.9

Radius: 5.1

Gravity: 16.34 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 9.91 AU - 11.29 AU

Year: 21943 Days

Day: 22.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 57.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 69,028,254 km

• M1: 63,579 km (0.058 R)
• M2: 373,247 km (0.114 R)
• M3: 657,632 km (0.112 R)
• M4: 1,053,019 km (0.103 R)
• M5: 1,561,203 km (0.109 R)
• M6: 2,452,807 km (0.073 R)
• M7: 2,798,079 km (0.063 R)
• M8: 3,500,291 km (0.101 R)
• M9: 5,470,495 km (0.055 R)
• M10: 5,898,195 km (0.116 R)
• M11: 6,059,163 km (0.066 R)
• M12: 6,474,446 km (0.088 R)
• M13: 6,732,503 km (0.109 R)
• M14: 7,223,632 km (0.107 R)
• M15: 7,595,383 km (0.064 R)
• M16: 9,211,638 km (0.072 R)
• M17: 10,447,317 km (0.067 R)
• M18: 10,623,992 km (0.096 R)
• M19: 11,663,099 km (0.087 R)
• M20: 12,768,178 km (0.1 R)
• M21: 15,184,333 km (0.115 R)
• M22: 15,717,201 km (0.118 R)
• M23: 17,225,896 km (0.11 R)
• M24: 24,126,247 km (0.073 R)
• M25: 26,019,558 km (0.105 R)
• M26: 26,562,448 km (0.113 R)
• M27: 27,112,968 km (0.072 R)
• M28: 31,303,504 km (0.093 R)
• M29: 32,665,144 km (0.109 R)
• M30: 33,169,887 km (0.105 R)
• M31: 37,534,704 km (0.085 R)
• M32: 42,716,176 km (0.059 R)
• M33: 49,671,430 km (0.118 R)
• M34: 52,204,870 km (0.092 R)
• M35: 52,548,945 km (0.059 R)
• M36: 55,357,046 km (0.097 R)
• M37: 60,130,715 km (0.116 R)
• M38: 63,984,056 km (0.037 R)
• M39: 64,378,247 km (0.08 R)
• M40: 64,576,015 km (0.079 R)
• M41: 66,172,075 km (0.116 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: 235 - 18,937 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit