🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.44 AU - 0.6 AU

Year: 238 Days

Day: 14.6 Hours

Environment

Temp: -111 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.6 AU - 0.64 AU

Year: 310 Days

Day: 42.9 Hours

Environment

Temp: -137 °C

Axial Tilt: 31.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.2

Radius: 12.1

Gravity: 6.69 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 1.08 AU - 1.12 AU

Year: 734 Days

Day: 9.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,006,331 km

• M1: 150,645 km (0.111 R)
• M2: 976,874 km (0.101 R)
• M3: 1,490,593 km (0.112 R)
• M4: 2,142,391 km (0.107 R)
• M5: 2,580,862 km (0.069 R)
• M6: 3,442,247 km (0.092 R)
• M7: 3,894,481 km (0.032 R)
• M8: 4,901,724 km (0.104 R)
• M9: 6,033,881 km (0.105 R)
• M10: 7,239,340 km (0.114 R)
• M11: 7,618,571 km (0.049 R)
• M12: 8,678,023 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 572.8

Radius: 13.9

Gravity: 2.96 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.9 AU - 2.78 AU

Year: 2276 Days

Day: 12.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,006,331 km

• M1: 172,935 km (0.054 R)
• M2: 654,939 km (0.08 R)
• M3: 1,355,058 km (0.11 R)
• M4: 1,837,211 km (0.043 R)
• M5: 2,305,902 km (0.09 R)
• M6: 3,130,186 km (0.049 R)
• M7: 3,735,758 km (0.114 R)
• M8: 5,296,812 km (0.118 R)
• M9: 5,887,424 km (0.101 R)
• M10: 6,734,447 km (0.115 R)
• M11: 8,140,219 km (0.105 R)
• M12: 8,864,123 km (0.088 R)
• M13: 9,426,461 km (0.097 R)
• M14: 11,295,986 km (0.066 R)
• M15: 11,839,175 km (0.075 R)
• M16: 12,852,402 km (0.084 R)
• M17: 14,188,311 km (0.08 R)
• M18: 14,821,259 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 412

Radius: 13.2

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.46 AU - 2.8 AU

Year: 2712 Days

Day: 9.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,006,331 km

• M1: 164,258 km (0.038 R)
• M2: 622,028 km (0.112 R)
• M3: 1,175,390 km (0.114 R)
• M4: 1,653,505 km (0.095 R)
• M5: 2,188,018 km (0.116 R)
• M6: 2,778,332 km (0.081 R)
• M7: 3,790,212 km (0.043 R)
• M8: 4,689,893 km (0.103 R)
• M9: 5,442,670 km (0.037 R)
• M10: 6,249,152 km (0.101 R)
• M11: 6,694,804 km (0.099 R)
• M12: 7,303,218 km (0.117 R)
• M13: 8,039,090 km (0.056 R)
• M14: 9,797,763 km (0.119 R)
• M15: 11,104,800 km (0.12 R)
• M16: 12,898,328 km (0.062 R)
• M17: 13,886,273 km (0.068 R)
• M18: 15,628,340 km (0.099 R)
• M19: 16,403,855 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137

Radius: 12.4

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.85 AU - 4.75 AU

Year: 5669 Days

Day: 11 Hours

Environment

Temp: -220 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,006,331 km

• M1: 154,385 km (0.098 R)
• M2: 668,553 km (0.119 R)
• M3: 1,283,999 km (0.084 R)
• M4: 2,032,437 km (0.112 R)
• M5: 2,680,794 km (0.088 R)
• M6: 3,186,883 km (0.053 R)
• M7: 3,607,852 km (0.066 R)
• M8: 4,715,774 km (0.109 R)
• M9: 5,831,774 km (0.063 R)
• M10: 7,293,195 km (0.12 R)
• M11: 7,748,123 km (0.051 R)
• M12: 8,715,123 km (0.068 R)
• M13: 12,059,234 km (0.081 R)
• M14: 15,034,436 km (0.092 R)
• M15: 16,953,328 km (0.101 R)
• M16: 17,484,401 km (0.103 R)

Asteroid Belt

Center: 6.71 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 597.3

Radius: 4.8

Gravity: 25.92 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 6.87 AU - 11.37 AU

Year: 17512 Days

Day: 22.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,006,331 km

• M1: 59,690 km (0.12 R)
• M2: 434,582 km (0.066 R)
• M3: 1,982,920 km (0.088 R)
• M4: 2,581,162 km (0.07 R)
• M5: 7,975,960 km (0.1 R)
• M6: 15,073,182 km (0.1 R)
• M7: 19,169,621 km (0.092 R)
• M8: 24,356,329 km (0.102 R)
• M9: 35,647,078 km (0.102 R)
• M10: 36,709,373 km (0.117 R)
• M11: 37,655,878 km (0.11 R)
• M12: 40,593,382 km (0.032 R)
• M13: 41,314,594 km (0.082 R)
• M14: 46,446,997 km (0.111 R)
• M15: 54,742,050 km (0.061 R)
• M16: 60,725,366 km (0.1 R)
• M17: 63,004,938 km (0.059 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 988.4

Radius: 7

Gravity: 20.17 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.79 AU - 9.61 AU

Year: 17743 Days

Day: 25 Hours

Environment

Temp: -234 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,006,331 km

• M1: 87,066 km (0.073 R)
• M2: 613,950 km (0.081 R)
• M3: 1,183,170 km (0.097 R)
• M4: 1,432,998 km (0.109 R)
• M5: 2,206,718 km (0.062 R)
• M6: 2,734,499 km (0.116 R)
• M7: 7,216,900 km (0.056 R)
• M8: 8,531,716 km (0.11 R)
• M9: 11,495,848 km (0.117 R)
• M10: 12,642,666 km (0.094 R)
• M11: 13,496,869 km (0.035 R)
• M12: 14,237,529 km (0.093 R)
• M13: 17,044,134 km (0.099 R)
• M14: 18,441,977 km (0.075 R)
• M15: 19,353,477 km (0.061 R)
• M16: 21,266,085 km (0.093 R)
• M17: 24,043,071 km (0.092 R)
• M18: 32,349,941 km (0.069 R)
• M19: 36,997,797 km (0.092 R)
• M20: 38,591,912 km (0.093 R)
• M21: 40,534,141 km (0.112 R)
• M22: 45,920,562 km (0.104 R)
• M23: 46,750,831 km (0.066 R)
• M24: 51,943,971 km (0.107 R)
• M25: 53,573,840 km (0.064 R)
• M26: 58,086,310 km (0.038 R)
• M27: 64,074,713 km (0.092 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601

Radius: 3.4

Gravity: 51.99 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 8.62 AU - 10.26 AU

Year: 18441 Days

Day: 22.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 69,006,331 km

• M1: 43,982 km (0.042 R)
• M2: 200,910 km (0.118 R)
• M3: 486,043 km (0.119 R)
• M4: 699,370 km (0.091 R)
• M5: 914,641 km (0.095 R)
• M6: 1,226,703 km (0.104 R)
• M7: 1,706,912 km (0.109 R)
• M8: 2,752,900 km (0.085 R)
• M9: 5,151,702 km (0.063 R)
• M10: 5,373,855 km (0.105 R)
• M11: 8,155,777 km (0.06 R)
• M12: 8,766,585 km (0.057 R)
• M13: 9,083,284 km (0.053 R)
• M14: 9,683,321 km (0.088 R)
• M15: 9,908,017 km (0.11 R)
• M16: 11,144,742 km (0.112 R)
• M17: 12,613,344 km (0.034 R)
• M18: 14,206,113 km (0.076 R)
• M19: 14,716,242 km (0.082 R)
• M20: 14,864,194 km (0.097 R)
• M21: 15,542,321 km (0.067 R)
• M22: 16,879,277 km (0.085 R)
• M23: 23,293,735 km (0.114 R)
• M24: 29,020,341 km (0.111 R)
• M25: 30,315,859 km (0.04 R)
• M26: 31,649,524 km (0.089 R)
• M27: 32,769,264 km (0.03 R)
• M28: 32,895,375 km (0.05 R)
• M29: 33,915,333 km (0.067 R)
• M30: 38,345,824 km (0.099 R)
• M31: 39,904,185 km (0.053 R)
• M32: 43,907,274 km (0.084 R)
• M33: 48,169,766 km (0.052 R)
• M34: 49,982,593 km (0.083 R)
• M35: 50,652,941 km (0.101 R)
• M36: 53,394,322 km (0.047 R)
• M37: 57,689,128 km (0.086 R)
• M38: 63,765,793 km (0.118 R)
• M39: 68,799,612 km (0.1 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 535 - 14,005 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit