🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.1

Radius: 1.76

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.56 AU - 0.66 AU

Year: 167 Days

Day: 47.5 Hours

Environment

Temp: 183 °C

Axial Tilt: 2.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.51 AU - 0.81 AU

Year: 188 Days

Day: 26.1 Hours

Environment

Temp: 178 °C

Axial Tilt: 1.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,871,585 km

• M1: 78,090 km (0.057 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.07 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 0.98 AU - 1.16 AU

Year: 389 Days

Day: 47.3 Hours

Environment

Temp: 120 °C

Axial Tilt: 11.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 36,871,585 km

• M1: 344,524 km (0.053 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.5

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 1.1 AU - 1.34 AU

Year: 474 Days

Day: 24.1 Hours

Environment

Temp: 29 °C

Axial Tilt: 14.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 1.62 AU - 2.36 AU

Year: 987 Days

Day: 20.5 Hours

Environment

Temp: -48 °C

Axial Tilt: 1.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.56

Radius: 1.19

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 2.61 AU - 3.33 AU

Year: 1799 Days

Day: 38.8 Hours

Environment

Temp: -92 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,871,585 km

• M1: 896,390 km (0.105 R)
• M2: 1,294,470 km (0.051 R)

Planet 7 - Terrestrial

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.33

Radius: 1.4

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.6 AU - 5.56 AU

Year: 3445 Days

Day: 38.7 Hours

Environment

Temp: -132 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 36,871,585 km

• M1: 1,696,589 km (0.117 R)
• M2: 2,445,776 km (0.111 R)

Planet 8 - Terrestrial

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 4.42 AU - 5.56 AU

Year: 3918 Days

Day: 18.5 Hours

Environment

Temp: -128 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.27 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 7.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.5

Radius: 8.4

Gravity: 8.31 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 7.29 AU - 7.81 AU

Year: 7291 Days

Day: 12.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 36,871,585 km

• M1: 110,553 km (0.083 R)
• M2: 224,397 km (0.073 R)
• M3: 334,950 km (0.111 R)
• M4: 455,376 km (0.117 R)
• M5: 565,779 km (0.063 R)
• M6: 890,107 km (0.035 R)
• M7: 1,015,620 km (0.091 R)
• M8: 1,445,863 km (0.105 R)
• M9: 1,613,712 km (0.085 R)
• M10: 1,948,512 km (0.098 R)
• M11: 2,009,847 km (0.1 R)
• M12: 2,261,770 km (0.043 R)
• M13: 2,369,929 km (0.112 R)
• M14: 2,959,195 km (0.094 R)
• M15: 3,492,213 km (0.065 R)
• M16: 3,872,640 km (0.042 R)
• M17: 4,080,880 km (0.11 R)
• M18: 4,645,313 km (0.066 R)
• M19: 5,035,165 km (0.119 R)
• M20: 5,291,426 km (0.091 R)
• M21: 7,233,506 km (0.112 R)
• M22: 7,297,384 km (0.085 R)
• M23: 7,554,992 km (0.112 R)
• M24: 7,619,917 km (0.099 R)
• M25: 8,212,175 km (0.12 R)
• M26: 8,751,027 km (0.049 R)
• M27: 9,580,846 km (0.112 R)
• M28: 10,219,629 km (0.033 R)
• M29: 10,291,436 km (0.059 R)
• M30: 10,363,392 km (0.092 R)
• M31: 10,507,904 km (0.064 R)
• M32: 11,055,731 km (0.102 R)
• M33: 12,027,070 km (0.103 R)
• M34: 12,140,914 km (0.084 R)
• M35: 12,255,207 km (0.084 R)
• M36: 12,484,690 km (0.093 R)
• M37: 12,909,099 km (0.066 R)
• M38: 13,181,667 km (0.069 R)
• M39: 13,338,296 km (0.107 R)
• M40: 14,775,482 km (0.116 R)
• M41: 15,471,113 km (0.087 R)
• M42: 15,719,146 km (0.085 R)
• M43: 15,885,199 km (0.077 R)
• M44: 16,177,364 km (0.063 R)
• M45: 16,429,137 km (0.12 R)
• M46: 16,555,548 km (0.097 R)
• M47: 16,894,088 km (0.112 R)
• M48: 17,578,199 km (0.102 R)
• M49: 17,923,620 km (0.045 R)
• M50: 18,973,348 km (0.111 R)
• M51: 20,042,973 km (0.094 R)
• M52: 20,178,060 km (0.032 R)
• M53: 20,358,625 km (0.105 R)
• M54: 20,449,131 km (0.059 R)
• M55: 21,315,453 km (0.116 R)
• M56: 22,054,167 km (0.109 R)
• M57: 24,416,616 km (0.103 R)
• M58: 25,092,350 km (0.066 R)
• M59: 25,189,289 km (0.086 R)
• M60: 25,627,611 km (0.102 R)
• M61: 26,957,387 km (0.105 R)
• M62: 27,206,018 km (0.119 R)
• M63: 27,605,594 km (0.073 R)
• M64: 28,309,452 km (0.05 R)
• M65: 28,511,559 km (0.055 R)
• M66: 29,529,722 km (0.049 R)
• M67: 30,923,077 km (0.09 R)
• M68: 31,027,047 km (0.115 R)
• M69: 31,392,216 km (0.072 R)
• M70: 31,549,144 km (0.078 R)
• M71: 33,026,273 km (0.084 R)
• M72: 33,239,151 km (0.053 R)
• M73: 34,041,295 km (0.059 R)
• M74: 34,095,000 km (0.106 R)
• M75: 34,471,837 km (0.042 R)
• M76: 34,579,697 km (0.113 R)
• M77: 34,850,021 km (0.106 R)
• M78: 35,719,484 km (0.104 R)
• M79: 36,321,465 km (0.053 R)
• M80: 36,376,368 km (0.082 R)
• M81: 36,706,231 km (0.11 R)

Kuiper Belt

Range: 31.2 - 54.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 17,831 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit