🌌 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: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.48 AU - 0.6 AU

Year: 260 Days

Day: 38.2 Hours

Environment

Temp: -117 °C

Axial Tilt: 45.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.53 AU - 0.73 AU

Year: 328 Days

Day: 20.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 25.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 89,819,744 km

• M1: 71,508 km (0.057 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576.7

Radius: 9.4

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.53 AU - 0.83 AU

Year: 368 Days

Day: 10 Hours

Environment

Temp: -134 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 89,819,744 km

• M1: 118,332 km (0.119 R)
• M2: 444,156 km (0.114 R)
• M3: 824,434 km (0.054 R)
• M4: 1,226,703 km (0.111 R)
• M5: 1,660,985 km (0.107 R)
• M6: 2,011,044 km (0.097 R)
• M7: 2,410,470 km (0.107 R)
• M8: 2,922,544 km (0.102 R)
• M9: 3,237,597 km (0.096 R)
• M10: 3,669,337 km (0.099 R)
• M11: 4,510,525 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.2

Radius: 13.8

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.79 AU - 2.79 AU

Year: 2273 Days

Day: 8 Hours

Environment

Temp: -193 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 89,819,744 km

• M1: 171,888 km (0.045 R)
• M2: 620,233 km (0.089 R)
• M3: 1,221,766 km (0.114 R)
• M4: 1,844,542 km (0.111 R)
• M5: 2,318,468 km (0.096 R)
• M6: 2,759,034 km (0.104 R)
• M7: 3,468,277 km (0.089 R)
• M8: 4,758,110 km (0.083 R)
• M9: 5,640,737 km (0.111 R)
• M10: 6,072,327 km (0.054 R)
• M11: 6,921,445 km (0.068 R)
• M12: 8,698,368 km (0.109 R)
• M13: 11,391,878 km (0.101 R)
• M14: 12,203,147 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.7

Radius: 10

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 5.41 AU - 5.47 AU

Year: 8324 Days

Day: 10.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 89,819,744 km

• M1: 124,914 km (0.028 R)
• M2: 469,289 km (0.087 R)
• M3: 1,001,558 km (0.074 R)
• M4: 1,510,789 km (0.093 R)
• M5: 1,879,398 km (0.107 R)
• M6: 2,741,231 km (0.115 R)
• M7: 3,273,052 km (0.108 R)
• M8: 4,026,875 km (0.077 R)
• M9: 4,629,157 km (0.119 R)
• M10: 5,042,944 km (0.086 R)
• M11: 6,950,915 km (0.114 R)
• M12: 9,390,258 km (0.06 R)
• M13: 10,549,343 km (0.032 R)
• M14: 12,018,992 km (0.096 R)
• M15: 12,350,950 km (0.049 R)
• M16: 13,266,190 km (0.047 R)
• M17: 14,912,215 km (0.118 R)
• M18: 15,949,527 km (0.059 R)
• M19: 16,690,186 km (0.104 R)
• M20: 18,240,020 km (0.062 R)
• M21: 19,350,335 km (0.099 R)
• M22: 20,426,841 km (0.12 R)
• M23: 21,219,860 km (0.064 R)
• M24: 25,044,180 km (0.032 R)
• M25: 25,769,131 km (0.059 R)
• M26: 27,931,119 km (0.119 R)
• M27: 29,006,878 km (0.073 R)
• M28: 34,025,587 km (0.106 R)
• M29: 35,591,727 km (0.1 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.8

Radius: 7

Gravity: 16.47 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 6 AU - 7.4 AU

Year: 11377 Days

Day: 20.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,819,744 km

• M1: 88,562 km (0.057 R)
• M2: 408,253 km (0.074 R)
• M3: 867,668 km (0.106 R)
• M4: 1,665,174 km (0.103 R)
• M5: 1,943,127 km (0.067 R)
• M6: 2,251,897 km (0.071 R)
• M7: 5,553,821 km (0.095 R)
• M8: 6,686,875 km (0.078 R)
• M9: 7,742,587 km (0.079 R)
• M10: 9,916,095 km (0.057 R)
• M11: 12,284,080 km (0.081 R)
• M12: 12,898,927 km (0.112 R)
• M13: 14,661,489 km (0.074 R)
• M14: 17,558,900 km (0.113 R)
• M15: 20,645,254 km (0.114 R)
• M16: 23,045,851 km (0.083 R)
• M17: 26,934,947 km (0.102 R)
• M18: 43,821,106 km (0.086 R)
• M19: 45,253,356 km (0.106 R)
• M20: 47,609,373 km (0.101 R)
• M21: 50,201,006 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 853.1

Radius: 3.7

Gravity: 62.32 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 7.93 AU - 9.67 AU

Year: 17125 Days

Day: 19.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 89,819,744 km

• M1: 47,273 km (0.117 R)
• M2: 193,580 km (0.083 R)
• M3: 469,139 km (0.037 R)
• M4: 1,040,603 km (0.092 R)
• M5: 1,157,738 km (0.113 R)
• M6: 1,498,073 km (0.108 R)
• M7: 1,735,784 km (0.043 R)
• M8: 2,971,163 km (0.057 R)
• M9: 3,128,391 km (0.117 R)
• M10: 3,487,874 km (0.107 R)
• M11: 4,388,454 km (0.096 R)
• M12: 4,767,385 km (0.107 R)
• M13: 5,093,359 km (0.069 R)
• M14: 5,318,653 km (0.077 R)
• M15: 6,858,464 km (0.068 R)
• M16: 8,002,289 km (0.115 R)
• M17: 8,462,153 km (0.025 R)
• M18: 15,429,375 km (0.051 R)
• M19: 16,140,563 km (0.094 R)
• M20: 18,492,391 km (0.108 R)
• M21: 20,026,218 km (0.102 R)
• M22: 21,158,674 km (0.082 R)
• M23: 23,139,948 km (0.095 R)
• M24: 24,704,443 km (0.057 R)
• M25: 26,673,300 km (0.077 R)
• M26: 27,238,332 km (0.088 R)
• M27: 30,672,949 km (0.093 R)
• M28: 31,043,952 km (0.118 R)
• M29: 33,332,949 km (0.057 R)
• M30: 33,725,045 km (0.052 R)
• M31: 34,785,843 km (0.098 R)
• M32: 36,973,413 km (0.051 R)
• M33: 42,533,218 km (0.102 R)
• M34: 44,556,080 km (0.063 R)
• M35: 54,184,648 km (0.065 R)
• M36: 55,090,014 km (0.06 R)
• M37: 62,500,195 km (0.084 R)
• M38: 63,096,193 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.6

Radius: 4.7

Gravity: 39.14 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 8.46 AU - 12.86 AU

Year: 22832 Days

Day: 21.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 44.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 89,819,744 km

• M1: 58,792 km (0.117 R)
• M2: 284,236 km (0.098 R)
• M3: 564,732 km (0.095 R)
• M4: 755,170 km (0.07 R)
• M5: 1,223,411 km (0.113 R)
• M6: 2,092,874 km (0.047 R)
• M7: 2,339,412 km (0.075 R)
• M8: 3,139,760 km (0.04 R)
• M9: 4,316,497 km (0.06 R)
• M10: 4,495,416 km (0.041 R)
• M11: 6,708,717 km (0.114 R)
• M12: 7,096,025 km (0.094 R)
• M13: 7,245,025 km (0.065 R)
• M14: 7,652,679 km (0.082 R)
• M15: 8,909,900 km (0.087 R)
• M16: 10,172,655 km (0.072 R)
• M17: 14,350,325 km (0.099 R)
• M18: 17,212,133 km (0.034 R)
• M19: 18,399,940 km (0.074 R)
• M20: 24,595,536 km (0.055 R)
• M21: 25,982,009 km (0.099 R)
• M22: 26,814,222 km (0.11 R)
• M23: 27,910,325 km (0.12 R)
• M24: 31,111,271 km (0.111 R)
• M25: 31,377,405 km (0.116 R)
• M26: 34,977,179 km (0.085 R)
• M27: 35,991,303 km (0.114 R)
• M28: 37,624,313 km (0.062 R)
• M29: 46,016,305 km (0.116 R)
• M30: 49,008,711 km (0.044 R)
• M31: 50,277,750 km (0.109 R)
• M32: 53,641,308 km (0.049 R)
• M33: 55,768,889 km (0.044 R)
• M34: 60,397,896 km (0.057 R)
• M35: 61,646,291 km (0.11 R)
• M36: 62,488,078 km (0.089 R)
• M37: 62,911,739 km (0.104 R)
• M38: 68,371,164 km (0.114 R)
• M39: 68,595,860 km (0.119 R)
• M40: 68,821,004 km (0.077 R)
• M41: 69,499,580 km (0.116 R)
• M42: 71,562,086 km (0.061 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 15,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit