🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.25

Radius: 1.09

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.72 AU - 0.92 AU

Year: 275 Days

Day: 37.6 Hours

Environment

Temp: 133 °C

Axial Tilt: 36.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.89 AU - 1.05 AU

Year: 354 Days

Day: 39.9 Hours

Environment

Temp: 38 °C

Axial Tilt: 32.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.73 AU - 2.47 AU

Year: 1129 Days

Day: 25.9 Hours

Environment

Temp: -80 °C

Axial Tilt: 34.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 2.21 AU - 2.69 AU

Year: 1422 Days

Day: 25.9 Hours

Environment

Temp: -97 °C

Axial Tilt: 17.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.53 AU - 3.55 AU

Year: 1966 Days

Day: 18.7 Hours

Environment

Temp: -99 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,945,440 km

• M1: 129,402 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.4

Radius: 8.6

Gravity: 8.62 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 7.47 AU - 8.49 AU

Year: 8360 Days

Day: 9 Hours

Environment

Temp: -172 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,945,440 km

• M1: 106,962 km (0.107 R)
• M2: 448,345 km (0.099 R)
• M3: 1,016,218 km (0.087 R)
• M4: 1,352,963 km (0.079 R)
• M5: 1,622,688 km (0.114 R)
• M6: 1,960,031 km (0.098 R)
• M7: 3,067,504 km (0.052 R)
• M8: 3,932,030 km (0.119 R)
• M9: 7,899,665 km (0.115 R)
• M10: 8,614,145 km (0.079 R)
• M11: 8,920,521 km (0.117 R)
• M12: 9,883,632 km (0.118 R)
• M13: 11,587,701 km (0.113 R)
• M14: 11,961,397 km (0.117 R)
• M15: 12,453,724 km (0.081 R)
• M16: 14,807,197 km (0.086 R)
• M17: 18,870,275 km (0.039 R)
• M18: 22,945,471 km (0.1 R)
• M19: 23,877,017 km (0.079 R)
• M20: 25,098,633 km (0.059 R)
• M21: 25,545,033 km (0.055 R)
• M22: 31,734,496 km (0.106 R)
• M23: 32,361,460 km (0.077 R)
• M24: 32,678,009 km (0.107 R)
• M25: 33,210,129 km (0.115 R)
• M26: 36,754,102 km (0.114 R)
• M27: 40,910,231 km (0.035 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 301.5

Radius: 7.9

Gravity: 4.83 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 9.84 AU - 14.42 AU

Year: 15667 Days

Day: 16.5 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 75,945,440 km

• M1: 98,286 km (0.086 R)
• M2: 352,453 km (0.113 R)
• M3: 711,188 km (0.114 R)
• M4: 1,283,101 km (0.064 R)
• M5: 2,044,554 km (0.099 R)
• M6: 2,294,383 km (0.09 R)
• M7: 2,544,510 km (0.12 R)
• M8: 3,055,088 km (0.085 R)
• M9: 4,970,240 km (0.061 R)
• M10: 5,526,744 km (0.102 R)
• M11: 6,920,846 km (0.097 R)
• M12: 9,140,879 km (0.102 R)
• M13: 11,910,534 km (0.077 R)
• M14: 12,666,751 km (0.081 R)
• M15: 17,007,184 km (0.082 R)
• M16: 17,518,808 km (0.049 R)
• M17: 18,116,003 km (0.12 R)
• M18: 18,726,661 km (0.101 R)
• M19: 19,509,358 km (0.042 R)
• M20: 20,972,724 km (0.096 R)
• M21: 22,074,063 km (0.074 R)
• M22: 27,761,326 km (0.092 R)
• M23: 28,063,813 km (0.065 R)
• M24: 32,869,644 km (0.111 R)
• M25: 42,583,632 km (0.1 R)
• M26: 44,898,061 km (0.094 R)
• M27: 46,866,021 km (0.101 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 370.5

Radius: 3.6

Gravity: 28.59 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 11.06 AU - 13.74 AU

Year: 16193 Days

Day: 15.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 75,945,440 km

• M1: 48,769 km (0.113 R)
• M2: 252,970 km (0.108 R)
• M3: 855,700 km (0.085 R)
• M4: 1,357,152 km (0.093 R)
• M5: 1,483,113 km (0.054 R)
• M6: 1,841,251 km (0.068 R)
• M7: 2,371,725 km (0.085 R)
• M8: 3,514,503 km (0.118 R)
• M9: 6,492,398 km (0.067 R)
• M10: 8,997,414 km (0.082 R)
• M11: 10,115,210 km (0.106 R)
• M12: 10,872,923 km (0.037 R)
• M13: 11,096,272 km (0.081 R)
• M14: 11,667,736 km (0.104 R)
• M15: 14,150,762 km (0.084 R)
• M16: 16,593,845 km (0.079 R)
• M17: 16,964,399 km (0.099 R)
• M18: 19,549,151 km (0.046 R)
• M19: 20,213,066 km (0.053 R)
• M20: 20,720,801 km (0.069 R)
• M21: 21,150,297 km (0.076 R)
• M22: 22,205,410 km (0.056 R)
• M23: 24,515,201 km (0.081 R)
• M24: 25,975,277 km (0.116 R)
• M25: 29,822,485 km (0.103 R)
• M26: 33,559,590 km (0.052 R)
• M27: 33,677,473 km (0.095 R)
• M28: 34,270,927 km (0.091 R)
• M29: 34,510,284 km (0.119 R)
• M30: 40,996,698 km (0.118 R)
• M31: 42,909,756 km (0.106 R)
• M32: 47,355,505 km (0.068 R)
• M33: 48,852,531 km (0.08 R)
• M34: 51,312,967 km (0.102 R)
• M35: 51,783,303 km (0.106 R)
• M36: 53,854,785 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 286.1

Radius: 6.4

Gravity: 6.98 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 14.85 AU - 23.27 AU

Year: 30859 Days

Day: 17.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,945,440 km

• M1: 109,057 km (0.107 R)
• M2: 486,193 km (0.078 R)
• M3: 772,224 km (0.04 R)
• M4: 1,168,210 km (0.099 R)
• M5: 1,674,599 km (0.115 R)
• M6: 1,949,111 km (0.117 R)
• M7: 2,683,935 km (0.109 R)
• M8: 3,922,456 km (0.103 R)
• M9: 4,177,072 km (0.069 R)
• M10: 5,660,335 km (0.094 R)
• M11: 6,069,485 km (0.114 R)
• M12: 6,498,232 km (0.1 R)
• M13: 7,178,903 km (0.043 R)
• M14: 7,956,213 km (0.054 R)
• M15: 8,896,286 km (0.052 R)
• M16: 9,850,122 km (0.093 R)
• M17: 11,246,918 km (0.115 R)
• M18: 12,770,721 km (0.08 R)
• M19: 14,881,996 km (0.116 R)
• M20: 15,979,895 km (0.118 R)
• M21: 17,986,152 km (0.104 R)
• M22: 19,140,150 km (0.079 R)
• M23: 24,039,630 km (0.087 R)
• M24: 24,678,562 km (0.041 R)
• M25: 27,347,688 km (0.12 R)
• M26: 28,751,813 km (0.088 R)
• M27: 29,471,529 km (0.103 R)
• M28: 31,197,738 km (0.062 R)
• M29: 32,085,452 km (0.116 R)
• M30: 34,714,784 km (0.097 R)
• M31: 35,121,242 km (0.051 R)
• M32: 36,081,810 km (0.064 R)
• M33: 55,755,276 km (0.109 R)
• M34: 56,873,819 km (0.068 R)
• M35: 70,830,104 km (0.083 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 15,189 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit