🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.16

Radius: 0.48

Gravity: 0.69 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.68 AU - 0.72 AU

Year: 211 Days

Day: 43.2 Hours

Environment

Temp: 168 °C

Axial Tilt: 28.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 95,587,662 km

• M1: 49,966 km (0.076 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 1.15 AU - 1.85 AU

Year: 661 Days

Day: 28.5 Hours

Environment

Temp: -20 °C

Axial Tilt: 131 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.89

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.13 AU - 2.75 AU

Year: 1372 Days

Day: 35.6 Hours

Environment

Temp: -87 °C

Axial Tilt: 25.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 2.18 AU - 3.52 AU

Year: 1732 Days

Day: 21.8 Hours

Environment

Temp: -93 °C

Axial Tilt: 8.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 4.08 AU - 5.78 AU

Year: 3940 Days

Day: 46.6 Hours

Environment

Temp: -141 °C

Axial Tilt: 21 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.1

Radius: 10.2

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.97 AU - 9.11 AU

Year: 8205 Days

Day: 9.7 Hours

Environment

Temp: -161 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 95,587,662 km

• M1: 127,308 km (0.119 R)
• M2: 499,358 km (0.077 R)
• M3: 1,035,367 km (0.109 R)
• M4: 1,641,388 km (0.08 R)
• M5: 1,978,432 km (0.106 R)
• M6: 2,619,908 km (0.061 R)
• M7: 2,937,803 km (0.095 R)
• M8: 4,234,667 km (0.105 R)
• M9: 4,675,382 km (0.1 R)
• M10: 6,500,177 km (0.057 R)
• M11: 7,088,097 km (0.097 R)
• M12: 7,994,959 km (0.107 R)
• M13: 8,670,244 km (0.09 R)
• M14: 9,111,258 km (0.091 R)
• M15: 9,474,781 km (0.038 R)
• M16: 9,848,177 km (0.096 R)
• M17: 11,129,633 km (0.047 R)
• M18: 16,830,060 km (0.091 R)
• M19: 18,223,265 km (0.076 R)
• M20: 18,728,606 km (0.099 R)
• M21: 22,203,316 km (0.088 R)
• M22: 26,820,505 km (0.09 R)
• M23: 30,398,886 km (0.108 R)
• M24: 31,728,212 km (0.067 R)
• M25: 34,832,667 km (0.04 R)
• M26: 35,164,924 km (0.101 R)
• M27: 38,723,558 km (0.063 R)
• M28: 39,439,085 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 858.2

Radius: 7.2

Gravity: 16.55 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 15.12 AU - 15.86 AU

Year: 21941 Days

Day: 16.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 95,587,662 km

• M1: 91,404 km (0.059 R)
• M2: 495,468 km (0.036 R)
• M3: 755,918 km (0.098 R)
• M4: 1,056,161 km (0.04 R)
• M5: 1,484,310 km (0.079 R)
• M6: 3,576,137 km (0.056 R)
• M7: 4,224,195 km (0.108 R)
• M8: 6,052,879 km (0.091 R)
• M9: 6,319,164 km (0.1 R)
• M10: 8,740,405 km (0.104 R)
• M11: 9,849,823 km (0.116 R)
• M12: 11,651,430 km (0.067 R)
• M13: 12,064,320 km (0.064 R)
• M14: 15,232,953 km (0.115 R)
• M15: 15,809,952 km (0.094 R)
• M16: 16,920,267 km (0.12 R)
• M17: 18,728,606 km (0.094 R)
• M18: 19,582,810 km (0.112 R)
• M19: 21,573,808 km (0.036 R)
• M20: 25,147,851 km (0.109 R)
• M21: 25,491,028 km (0.078 R)
• M22: 27,254,488 km (0.052 R)
• M23: 27,616,665 km (0.098 R)
• M24: 27,859,911 km (0.077 R)
• M25: 30,891,512 km (0.105 R)
• M26: 41,451,625 km (0.09 R)
• M27: 42,252,273 km (0.115 R)
• M28: 49,567,310 km (0.114 R)
• M29: 50,469,086 km (0.039 R)
• M30: 51,749,943 km (0.118 R)
• M31: 54,376,133 km (0.108 R)
• M32: 55,528,486 km (0.11 R)
• M33: 56,893,267 km (0.067 R)
• M34: 59,284,739 km (0.076 R)
• M35: 64,694,347 km (0.1 R)
• M36: 81,873,419 km (0.08 R)
• M37: 83,640,170 km (0.099 R)
• M38: 86,208,167 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 894.1

Radius: 3.9

Gravity: 58.78 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 16.09 AU - 17.39 AU

Year: 24649 Days

Day: 19.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 95,587,662 km

• M1: 48,470 km (0.066 R)
• M2: 182,659 km (0.111 R)
• M3: 439,818 km (0.107 R)
• M4: 1,402,480 km (0.079 R)
• M5: 2,283,462 km (0.1 R)
• M6: 2,867,193 km (0.052 R)
• M7: 4,144,759 km (0.091 R)
• M8: 5,585,984 km (0.094 R)
• M9: 7,177,556 km (0.103 R)
• M10: 8,076,490 km (0.081 R)
• M11: 10,680,540 km (0.083 R)
• M12: 12,871,550 km (0.062 R)
• M13: 18,306,291 km (0.114 R)
• M14: 20,788,270 km (0.087 R)
• M15: 23,150,270 km (0.062 R)
• M16: 23,824,209 km (0.098 R)
• M17: 47,511,685 km (0.106 R)
• M18: 48,234,542 km (0.037 R)
• M19: 50,821,987 km (0.113 R)
• M20: 70,629,343 km (0.06 R)
• M21: 72,997,627 km (0.073 R)
• M22: 82,739,890 km (0.113 R)
• M23: 90,520,924 km (0.072 R)
• M24: 95,015,592 km (0.089 R)

Kuiper Belt

Range: 30.5 - 46.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 225 - 13,090 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit