🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.68 AU - 1.04 AU

Year: 346 Days

Day: 16.8 Hours

Environment

Temp: -33 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.02 AU - 1.46 AU

Year: 599 Days

Day: 14 Hours

Environment

Temp: -72 °C

Axial Tilt: 20.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.22 AU - 1.9 AU

Year: 845 Days

Day: 24.3 Hours

Environment

Temp: -108 °C

Axial Tilt: 48.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,682,520 km

• M1: 329,714 km (0.108 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 1.62 AU - 1.9 AU

Year: 1012 Days

Day: 25.3 Hours

Environment

Temp: -118 °C

Axial Tilt: 27.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.11

Radius: 1.04

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 1.77 AU - 2.53 AU

Year: 1367 Days

Day: 37.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.95 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.7

Radius: 13.3

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 2.87 AU - 4.63 AU

Year: 3148 Days

Day: 13.4 Hours

Environment

Temp: -157 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,682,520 km

• M1: 165,455 km (0.091 R)
• M2: 833,559 km (0.099 R)
• M3: 1,334,712 km (0.03 R)
• M4: 1,758,224 km (0.071 R)
• M5: 2,955,007 km (0.056 R)
• M6: 3,913,929 km (0.097 R)
• M7: 4,334,449 km (0.12 R)
• M8: 4,955,130 km (0.065 R)
• M9: 5,824,593 km (0.111 R)
• M10: 6,628,831 km (0.089 R)
• M11: 8,078,734 km (0.113 R)
• M12: 11,394,720 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.4

Radius: 14.5

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.59 AU - 4.37 AU

Year: 3442 Days

Day: 10.8 Hours

Environment

Temp: -150 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,682,520 km

• M1: 180,415 km (0.095 R)
• M2: 649,105 km (0.097 R)
• M3: 1,377,796 km (0.06 R)
• M4: 1,877,453 km (0.112 R)
• M5: 2,335,672 km (0.06 R)
• M6: 3,112,982 km (0.073 R)
• M7: 4,390,099 km (0.089 R)
• M8: 5,237,721 km (0.094 R)
• M9: 6,605,344 km (0.082 R)
• M10: 7,787,317 km (0.086 R)
• M11: 8,590,508 km (0.12 R)
• M12: 11,118,563 km (0.061 R)
• M13: 13,218,617 km (0.117 R)
• M14: 13,807,435 km (0.051 R)
• M15: 14,827,842 km (0.075 R)
• M16: 15,625,647 km (0.045 R)
• M17: 16,847,413 km (0.103 R)
• M18: 18,191,849 km (0.075 R)
• M19: 21,426,753 km (0.063 R)
• M20: 24,291,702 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 644.8

Radius: 13.2

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.3 AU - 7.42 AU

Year: 7788 Days

Day: 13.3 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,682,520 km

• M1: 164,258 km (0.092 R)
• M2: 711,637 km (0.119 R)
• M3: 1,486,255 km (0.1 R)
• M4: 2,121,747 km (0.103 R)
• M5: 3,269,013 km (0.055 R)
• M6: 5,386,571 km (0.089 R)
• M7: 6,228,358 km (0.082 R)
• M8: 6,934,161 km (0.117 R)
• M9: 8,422,211 km (0.044 R)
• M10: 9,832,470 km (0.048 R)
• M11: 10,400,194 km (0.077 R)
• M12: 11,089,989 km (0.119 R)
• M13: 15,007,060 km (0.116 R)
• M14: 15,633,277 km (0.058 R)
• M15: 16,342,221 km (0.069 R)
• M16: 19,467,769 km (0.072 R)
• M17: 24,829,507 km (0.078 R)
• M18: 25,883,872 km (0.118 R)
• M19: 26,422,275 km (0.095 R)
• M20: 28,365,402 km (0.099 R)
• M21: 29,712,680 km (0.042 R)
• M22: 31,710,709 km (0.091 R)
• M23: 32,847,204 km (0.079 R)
• M24: 36,084,353 km (0.081 R)
• M25: 37,436,867 km (0.091 R)

Planet 9 - Ice Giant

Semi-Major Axis: 11.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 362.8

Radius: 4.2

Gravity: 20.57 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 8.72 AU - 13.36 AU

Year: 15901 Days

Day: 21.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,682,520 km

• M1: 52,359 km (0.057 R)
• M2: 219,909 km (0.114 R)
• M3: 468,241 km (0.109 R)
• M4: 1,045,689 km (0.051 R)
• M5: 2,535,385 km (0.109 R)
• M6: 3,135,123 km (0.091 R)
• M7: 4,766,338 km (0.105 R)
• M8: 8,881,626 km (0.102 R)
• M9: 10,244,163 km (0.069 R)
• M10: 12,814,703 km (0.114 R)
• M11: 13,312,715 km (0.12 R)
• M12: 14,748,704 km (0.043 R)
• M13: 25,292,362 km (0.111 R)
• M14: 26,873,612 km (0.104 R)
• M15: 34,449,996 km (0.051 R)
• M16: 40,485,223 km (0.106 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11.64 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 710.2

Radius: 4.3

Gravity: 38.41 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 8.85 AU - 14.43 AU

Year: 17214 Days

Day: 17 Hours

Environment

Temp: -209 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 69,682,520 km

• M1: 53,556 km (0.107 R)
• M2: 232,475 km (0.108 R)
• M3: 446,101 km (0.115 R)
• M4: 698,323 km (0.117 R)
• M5: 836,102 km (0.117 R)
• M6: 1,102,686 km (0.026 R)
• M7: 1,334,563 km (0.109 R)
• M8: 1,699,432 km (0.091 R)
• M9: 2,250,550 km (0.082 R)
• M10: 2,601,507 km (0.105 R)
• M11: 2,863,303 km (0.092 R)
• M12: 3,580,326 km (0.115 R)
• M13: 3,814,147 km (0.077 R)
• M14: 4,057,992 km (0.1 R)
• M15: 4,610,756 km (0.104 R)
• M16: 5,984,812 km (0.099 R)
• M17: 6,875,219 km (0.053 R)
• M18: 7,421,850 km (0.107 R)
• M19: 9,675,392 km (0.047 R)
• M20: 9,843,839 km (0.085 R)
• M21: 12,347,060 km (0.084 R)
• M22: 13,850,818 km (0.044 R)
• M23: 16,249,770 km (0.101 R)
• M24: 20,529,914 km (0.039 R)
• M25: 23,327,394 km (0.096 R)
• M26: 24,555,593 km (0.114 R)
• M27: 29,545,879 km (0.028 R)
• M28: 30,618,944 km (0.119 R)
• M29: 31,965,475 km (0.107 R)
• M30: 32,969,127 km (0.109 R)
• M31: 37,331,999 km (0.072 R)
• M32: 38,585,330 km (0.114 R)
• M33: 39,722,723 km (0.09 R)
• M34: 40,154,911 km (0.109 R)
• M35: 42,965,556 km (0.09 R)
• M36: 47,020,107 km (0.091 R)
• M37: 47,342,191 km (0.031 R)
• M38: 49,971,673 km (0.035 R)
• M39: 67,614,498 km (0.09 R)
• M40: 68,850,326 km (0.096 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: 531 - 13,075 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit