🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.7 AU - 1.02 AU

Year: 290 Days

Day: 17.9 Hours

Environment

Temp: 156 °C

Axial Tilt: 0.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.35

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 1.02 AU - 1.7 AU

Year: 576 Days

Day: 42.4 Hours

Environment

Temp: -11 °C

Axial Tilt: 49.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 79,738,594 km

• M1: 529,128 km (0.098 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.61 AU - 2.55 AU

Year: 1090 Days

Day: 17.3 Hours

Environment

Temp: -72 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.34

Radius: 0.65

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.16 AU - 2.36 AU

Year: 1235 Days

Day: 21.5 Hours

Environment

Temp: -84 °C

Axial Tilt: 2.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 416.7

Radius: 11.2

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 7.26 AU - 9.18 AU

Year: 8565 Days

Day: 13.2 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,738,594 km

• M1: 149,299 km (0.113 R)
• M2: 501,901 km (0.081 R)
• M3: 940,372 km (0.113 R)
• M4: 2,002,667 km (0.079 R)
• M5: 2,422,588 km (0.101 R)
• M6: 4,380,076 km (0.095 R)
• M7: 4,923,116 km (0.062 R)
• M8: 5,758,471 km (0.034 R)
• M9: 6,616,564 km (0.09 R)
• M10: 7,259,087 km (0.039 R)
• M11: 11,163,592 km (0.069 R)
• M12: 12,389,247 km (0.114 R)
• M13: 12,980,158 km (0.083 R)
• M14: 14,334,767 km (0.12 R)
• M15: 14,687,669 km (0.115 R)
• M16: 18,267,546 km (0.068 R)
• M17: 20,258,992 km (0.025 R)
• M18: 21,383,520 km (0.11 R)
• M19: 23,838,570 km (0.101 R)
• M20: 24,921,958 km (0.088 R)
• M21: 26,037,809 km (0.097 R)
• M22: 29,490,827 km (0.111 R)
• M23: 35,761,072 km (0.028 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.2

Radius: 10.5

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 10.14 AU - 13.56 AU

Year: 14825 Days

Day: 10.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 79,738,594 km

• M1: 132,544 km (0.092 R)
• M2: 609,163 km (0.073 R)
• M3: 986,149 km (0.111 R)
• M4: 1,418,337 km (0.071 R)
• M5: 2,041,113 km (0.055 R)
• M6: 2,407,179 km (0.107 R)
• M7: 2,735,696 km (0.092 R)
• M8: 3,389,738 km (0.076 R)
• M9: 5,386,122 km (0.108 R)
• M10: 5,816,515 km (0.065 R)
• M11: 6,163,133 km (0.05 R)
• M12: 9,268,037 km (0.102 R)
• M13: 9,936,440 km (0.071 R)
• M14: 10,483,819 km (0.066 R)
• M15: 11,103,752 km (0.115 R)
• M16: 11,693,467 km (0.098 R)
• M17: 12,935,279 km (0.064 R)
• M18: 14,263,110 km (0.105 R)
• M19: 14,640,545 km (0.076 R)
• M20: 15,746,223 km (0.119 R)
• M21: 16,217,307 km (0.102 R)
• M22: 16,559,587 km (0.102 R)
• M23: 17,759,511 km (0.114 R)
• M24: 23,402,941 km (0.098 R)
• M25: 30,969,452 km (0.089 R)
• M26: 32,030,400 km (0.111 R)
• M27: 33,666,851 km (0.066 R)
• M28: 35,703,327 km (0.113 R)
• M29: 38,544,789 km (0.091 R)
• M30: 41,024,972 km (0.095 R)
• M31: 44,673,515 km (0.041 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 920.4

Radius: 4.4

Gravity: 47.54 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 13.05 AU - 14.43 AU

Year: 18510 Days

Day: 18.8 Hours

Environment

Temp: -177 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 79,738,594 km

• M1: 56,249 km (0.038 R)
• M2: 375,042 km (0.073 R)
• M3: 1,255,425 km (0.099 R)
• M4: 1,588,580 km (0.088 R)
• M5: 1,841,699 km (0.086 R)
• M6: 2,100,354 km (0.1 R)
• M7: 2,382,944 km (0.096 R)
• M8: 2,840,864 km (0.113 R)
• M9: 3,326,757 km (0.04 R)
• M10: 4,745,244 km (0.115 R)
• M11: 6,128,576 km (0.114 R)
• M12: 7,660,009 km (0.105 R)
• M13: 8,594,547 km (0.095 R)
• M14: 10,195,544 km (0.034 R)
• M15: 12,052,652 km (0.076 R)
• M16: 17,525,839 km (0.107 R)
• M17: 21,636,340 km (0.1 R)
• M18: 23,593,978 km (0.059 R)
• M19: 24,020,631 km (0.083 R)
• M20: 24,561,278 km (0.116 R)
• M21: 28,095,079 km (0.07 R)
• M22: 31,953,357 km (0.083 R)
• M23: 37,146,348 km (0.104 R)
• M24: 38,896,045 km (0.102 R)
• M25: 44,150,820 km (0.107 R)
• M26: 48,818,124 km (0.071 R)
• M27: 51,448,653 km (0.031 R)
• M28: 71,438,818 km (0.062 R)
• M29: 71,884,021 km (0.096 R)

Kuiper Belt

Range: 30.2 - 49.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 10,914 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit