🌌 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: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.54 AU - 0.68 AU

Year: 168 Days

Day: 43.4 Hours

Environment

Temp: 228 °C

Axial Tilt: 8.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.56 AU - 0.72 AU

Year: 181 Days

Day: 25.2 Hours

Environment

Temp: 238 °C

Axial Tilt: 1.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.12

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.72 AU - 1 AU

Year: 282 Days

Day: 29.1 Hours

Environment

Temp: 175 °C

Axial Tilt: 32.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 27,763,124 km

• M1: 787,483 km (0.081 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.76 AU - 1.02 AU

Year: 296 Days

Day: 27.7 Hours

Environment

Temp: 156 °C

Axial Tilt: 5.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 27,763,124 km

• M1: 415,433 km (0.095 R)

Planet 5 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.75 AU - 1.23 AU

Year: 348 Days

Day: 43.2 Hours

Environment

Temp: 147 °C

Axial Tilt: 1.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 6 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.65

Radius: 1.48

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.95 AU - 1.55 AU

Year: 493 Days

Day: 23.9 Hours

Environment

Temp: 25 °C

Axial Tilt: 10.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.48

Radius: 1.17

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 1.27 AU - 1.75 AU

Year: 655 Days

Day: 13.2 Hours

Environment

Temp: -4 °C

Axial Tilt: 20.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 8 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.79 AU - 2.57 AU

Year: 1137 Days

Day: 21.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 48.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 540.6

Radius: 13.2

Gravity: 3.1 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.87 AU - 7.89 AU

Year: 5690 Days

Day: 10.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (72)

Outer Limit: 27,763,124 km

• M1: 185,801 km (0.113 R)
• M2: 472,430 km (0.116 R)
• M3: 654,042 km (0.109 R)
• M4: 760,855 km (0.11 R)
• M5: 848,669 km (0.077 R)
• M6: 1,437,486 km (0.112 R)
• M7: 1,631,514 km (0.076 R)
• M8: 1,748,949 km (0.113 R)
• M9: 2,046,200 km (0.105 R)
• M10: 2,247,409 km (0.069 R)
• M11: 2,769,206 km (0.08 R)
• M12: 2,910,726 km (0.11 R)
• M13: 3,264,674 km (0.07 R)
• M14: 3,392,880 km (0.079 R)
• M15: 3,923,055 km (0.088 R)
• M16: 4,267,878 km (0.087 R)
• M17: 4,385,013 km (0.116 R)
• M18: 4,622,425 km (0.06 R)
• M19: 5,011,379 km (0.116 R)
• M20: 5,284,994 km (0.111 R)
• M21: 5,589,276 km (0.076 R)
• M22: 6,188,266 km (0.094 R)
• M23: 6,374,814 km (0.104 R)
• M24: 6,482,076 km (0.106 R)
• M25: 6,617,163 km (0.062 R)
• M26: 6,807,900 km (0.092 R)
• M27: 7,334,933 km (0.06 R)
• M28: 7,419,306 km (0.079 R)
• M29: 7,674,520 km (0.118 R)
• M30: 8,019,343 km (0.111 R)
• M31: 8,487,136 km (0.113 R)
• M32: 8,933,686 km (0.089 R)
• M33: 9,326,978 km (0.071 R)
• M34: 9,449,200 km (0.077 R)
• M35: 9,974,288 km (0.073 R)
• M36: 10,988,712 km (0.115 R)
• M37: 11,410,278 km (0.074 R)
• M38: 11,639,462 km (0.03 R)
• M39: 11,738,047 km (0.089 R)
• M40: 12,102,318 km (0.118 R)
• M41: 12,202,399 km (0.104 R)
• M42: 12,336,140 km (0.113 R)
• M43: 13,874,305 km (0.073 R)
• M44: 14,294,675 km (0.102 R)
• M45: 14,577,265 km (0.045 R)
• M46: 14,790,442 km (0.102 R)
• M47: 15,255,991 km (0.097 R)
• M48: 15,436,256 km (0.101 R)
• M49: 16,385,305 km (0.066 R)
• M50: 16,607,009 km (0.119 R)
• M51: 17,053,409 km (0.1 R)
• M52: 17,315,654 km (0.081 R)
• M53: 18,186,613 km (0.055 R)
• M54: 18,994,442 km (0.116 R)
• M55: 19,461,187 km (0.07 R)
• M56: 19,696,056 km (0.117 R)
• M57: 20,684,748 km (0.114 R)
• M58: 21,004,588 km (0.116 R)
• M59: 21,892,452 km (0.038 R)
• M60: 22,545,895 km (0.079 R)
• M61: 23,872,080 km (0.057 R)
• M62: 25,010,520 km (0.118 R)
• M63: 25,138,127 km (0.11 R)
• M64: 25,822,388 km (0.053 R)
• M65: 26,080,594 km (0.054 R)
• M66: 26,166,762 km (0.107 R)
• M67: 26,990,897 km (0.101 R)
• M68: 27,209,160 km (0.119 R)
• M69: 28,132,328 km (0.087 R)
• M70: 28,931,779 km (0.07 R)
• M71: 29,424,106 km (0.115 R)
• M72: 30,190,346 km (0.032 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100.6

Radius: 11.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 9.55 AU - 10.85 AU

Year: 11503 Days

Day: 13.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 27,763,124 km

• M1: 157,826 km (0.114 R)
• M2: 257,159 km (0.045 R)
• M3: 420,370 km (0.089 R)
• M4: 605,572 km (0.092 R)
• M5: 918,531 km (0.045 R)
• M6: 1,101,040 km (0.094 R)
• M7: 1,736,233 km (0.064 R)
• M8: 1,915,302 km (0.109 R)
• M9: 2,135,061 km (0.112 R)
• M10: 2,399,101 km (0.107 R)
• M11: 4,527,729 km (0.105 R)
• M12: 5,170,252 km (0.045 R)
• M13: 6,088,035 km (0.084 R)
• M14: 6,187,518 km (0.108 R)
• M15: 6,514,838 km (0.046 R)
• M16: 6,770,650 km (0.085 R)
• M17: 7,450,872 km (0.05 R)
• M18: 8,428,643 km (0.08 R)
• M19: 9,649,063 km (0.089 R)
• M20: 10,087,684 km (0.102 R)
• M21: 11,720,544 km (0.086 R)
• M22: 13,110,907 km (0.082 R)
• M23: 13,434,188 km (0.12 R)
• M24: 13,727,400 km (0.076 R)
• M25: 14,088,529 km (0.069 R)
• M26: 14,220,774 km (0.101 R)
• M27: 14,486,160 km (0.095 R)
• M28: 14,652,962 km (0.036 R)
• M29: 14,988,510 km (0.105 R)
• M30: 15,191,065 km (0.031 R)
• M31: 15,804,117 km (0.105 R)
• M32: 16,251,864 km (0.115 R)
• M33: 18,300,158 km (0.068 R)
• M34: 18,697,789 km (0.083 R)
• M35: 18,952,405 km (0.098 R)
• M36: 19,833,686 km (0.115 R)
• M37: 20,916,475 km (0.119 R)
• M38: 21,674,487 km (0.088 R)
• M39: 22,711,949 km (0.116 R)
• M40: 23,726,222 km (0.046 R)
• M41: 26,244,702 km (0.045 R)
• M42: 26,611,516 km (0.069 R)

Kuiper Belt

Range: 31.1 - 57.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 518 - 12,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit