🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.38

Radius: 0.68

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.59 AU - 0.61 AU

Year: 174 Days

Day: 31 Hours

Environment

Temp: 158 °C

Axial Tilt: 27.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 84,279,705 km

• M1: 256,560 km (0.112 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.76

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.84 AU - 0.94 AU

Year: 315 Days

Day: 16 Hours

Environment

Temp: 36 °C

Axial Tilt: 11.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.76

Radius: 1.7

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.96 AU - 2.3 AU

Year: 1165 Days

Day: 21.7 Hours

Environment

Temp: -73 °C

Axial Tilt: 4.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 6.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.5

Radius: 8.3

Gravity: 10.78 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 5.39 AU - 7.47 AU

Year: 6110 Days

Day: 10 Hours

Environment

Temp: -153 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 84,279,705 km

• M1: 104,419 km (0.089 R)
• M2: 717,471 km (0.068 R)
• M3: 1,339,350 km (0.043 R)
• M4: 1,850,675 km (0.108 R)
• M5: 2,120,550 km (0.105 R)
• M6: 4,161,214 km (0.061 R)
• M7: 4,960,067 km (0.119 R)
• M8: 5,306,835 km (0.114 R)
• M9: 5,762,959 km (0.117 R)
• M10: 6,113,915 km (0.108 R)
• M11: 6,649,925 km (0.083 R)
• M12: 7,738,997 km (0.114 R)
• M13: 9,766,647 km (0.051 R)
• M14: 10,174,301 km (0.102 R)
• M15: 12,916,729 km (0.102 R)
• M16: 13,911,854 km (0.108 R)
• M17: 16,878,978 km (0.086 R)
• M18: 20,683,850 km (0.116 R)
• M19: 22,982,721 km (0.09 R)
• M20: 24,606,755 km (0.119 R)
• M21: 25,192,880 km (0.05 R)
• M22: 26,918,641 km (0.112 R)
• M23: 28,446,185 km (0.115 R)
• M24: 32,167,731 km (0.068 R)
• M25: 32,868,447 km (0.109 R)
• M26: 33,171,832 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 683.1

Radius: 15

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.33 AU - 8.35 AU

Year: 6704 Days

Day: 9.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,279,705 km

• M1: 186,549 km (0.094 R)
• M2: 736,470 km (0.106 R)
• M3: 1,382,434 km (0.054 R)
• M4: 1,903,483 km (0.12 R)
• M5: 3,467,978 km (0.104 R)
• M6: 4,586,072 km (0.076 R)
• M7: 6,192,305 km (0.114 R)
• M8: 6,699,142 km (0.026 R)
• M9: 7,343,909 km (0.092 R)
• M10: 9,486,749 km (0.102 R)
• M11: 11,712,167 km (0.117 R)
• M12: 13,864,880 km (0.045 R)
• M13: 14,736,437 km (0.057 R)
• M14: 15,768,064 km (0.113 R)
• M15: 16,717,861 km (0.098 R)
• M16: 19,653,121 km (0.096 R)
• M17: 20,308,360 km (0.086 R)
• M18: 22,283,650 km (0.105 R)
• M19: 27,597,067 km (0.073 R)
• M20: 29,070,157 km (0.047 R)
• M21: 31,082,249 km (0.109 R)
• M22: 32,981,543 km (0.11 R)
• M23: 33,700,361 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.5

Radius: 9.3

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 10.29 AU - 11.49 AU

Year: 13467 Days

Day: 9.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,279,705 km

• M1: 116,238 km (0.097 R)
• M2: 468,541 km (0.114 R)
• M3: 878,289 km (0.057 R)
• M4: 1,404,574 km (0.083 R)
• M5: 1,802,505 km (0.111 R)
• M6: 2,104,393 km (0.11 R)
• M7: 2,555,431 km (0.077 R)
• M8: 2,923,142 km (0.112 R)
• M9: 6,003,512 km (0.097 R)
• M10: 6,324,549 km (0.097 R)
• M11: 9,042,593 km (0.091 R)
• M12: 13,158,180 km (0.037 R)
• M13: 14,306,942 km (0.097 R)
• M14: 17,823,390 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 788.8

Radius: 8

Gravity: 12.33 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 13.68 AU - 16.28 AU

Year: 21727 Days

Day: 24 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,279,705 km

• M1: 99,483 km (0.098 R)
• M2: 431,590 km (0.065 R)
• M3: 901,626 km (0.042 R)
• M4: 1,164,320 km (0.081 R)
• M5: 1,888,673 km (0.081 R)
• M6: 2,195,349 km (0.074 R)
• M7: 2,832,187 km (0.036 R)
• M8: 3,865,609 km (0.114 R)
• M9: 4,294,656 km (0.057 R)
• M10: 4,865,970 km (0.115 R)
• M11: 5,446,709 km (0.097 R)
• M12: 6,425,827 km (0.115 R)
• M13: 7,567,707 km (0.111 R)
• M14: 8,028,918 km (0.058 R)
• M15: 8,895,239 km (0.051 R)
• M16: 9,643,827 km (0.052 R)
• M17: 11,530,854 km (0.071 R)
• M18: 13,354,901 km (0.119 R)
• M19: 13,952,694 km (0.094 R)
• M20: 19,300,968 km (0.117 R)
• M21: 19,585,204 km (0.103 R)
• M22: 22,270,485 km (0.075 R)
• M23: 26,802,703 km (0.086 R)
• M24: 28,115,723 km (0.084 R)
• M25: 33,524,584 km (0.051 R)
• M26: 34,349,765 km (0.081 R)
• M27: 35,329,632 km (0.072 R)
• M28: 35,755,237 km (0.072 R)
• M29: 37,639,123 km (0.104 R)
• M30: 41,289,162 km (0.051 R)
• M31: 55,151,050 km (0.075 R)
• M32: 64,164,771 km (0.072 R)
• M33: 74,809,706 km (0.1 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 554 - 10,834 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit