🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.52 AU - 0.78 AU

Year: 191 Days

Day: 18.7 Hours

Environment

Temp: 127 °C

Axial Tilt: 13.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.54

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.49 AU - 0.81 AU

Year: 191 Days

Day: 44.7 Hours

Environment

Temp: 221 °C

Axial Tilt: 19.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.63 AU - 0.87 AU

Year: 237 Days

Day: 24.2 Hours

Environment

Temp: 139 °C

Axial Tilt: 26.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.7 AU - 0.92 AU

Year: 266 Days

Day: 14.2 Hours

Environment

Temp: 126 °C

Axial Tilt: 23 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.72

Radius: 0.88

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.03 AU - 1.09 AU

Year: 399 Days

Day: 40 Hours

Environment

Temp: 37 °C

Axial Tilt: 0.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Terrestrial

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 1.33 AU - 1.55 AU

Year: 631 Days

Day: 34.1 Hours

Environment

Temp: -23 °C

Axial Tilt: 31.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.91 AU - 2.01 AU

Year: 1002 Days

Day: 30.9 Hours

Environment

Temp: -63 °C

Axial Tilt: 37.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,888,981 km

• M1: 183,257 km (0.084 R)
• M2: 393,143 km (0.052 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.68

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 2.9 AU - 3.26 AU

Year: 1974 Days

Day: 33.3 Hours

Environment

Temp: -105 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,888,981 km

• M1: 142,118 km (0.086 R)
• M2: 2,010,895 km (0.089 R)

Asteroid Belt

Center: 5.22 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Gas Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.6

Radius: 9.9

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 6.19 AU - 8.53 AU

Year: 7293 Days

Day: 9.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 42,888,981 km

• M1: 253,269 km (0.075 R)
• M2: 736,022 km (0.091 R)
• M3: 1,019,210 km (0.084 R)
• M4: 1,239,568 km (0.066 R)
• M5: 1,435,092 km (0.11 R)
• M6: 1,536,819 km (0.046 R)
• M7: 1,662,182 km (0.067 R)
• M8: 2,387,432 km (0.077 R)
• M9: 3,067,953 km (0.066 R)
• M10: 3,637,023 km (0.086 R)
• M11: 3,862,467 km (0.041 R)
• M12: 4,005,782 km (0.12 R)
• M13: 4,778,904 km (0.118 R)
• M14: 4,995,073 km (0.081 R)
• M15: 5,825,491 km (0.103 R)
• M16: 6,089,681 km (0.079 R)
• M17: 6,223,271 km (0.112 R)
• M18: 7,291,251 km (0.08 R)
• M19: 7,792,104 km (0.077 R)
• M20: 8,193,475 km (0.06 R)
• M21: 8,601,578 km (0.111 R)
• M22: 8,751,625 km (0.117 R)
• M23: 9,016,264 km (0.119 R)
• M24: 9,092,409 km (0.11 R)
• M25: 9,787,141 km (0.074 R)
• M26: 9,943,920 km (0.089 R)
• M27: 10,699,539 km (0.032 R)
• M28: 10,780,172 km (0.073 R)
• M29: 11,023,418 km (0.103 R)
• M30: 11,227,320 km (0.101 R)
• M31: 11,309,300 km (0.095 R)
• M32: 11,432,568 km (0.096 R)
• M33: 12,097,830 km (0.109 R)
• M34: 12,861,079 km (0.095 R)
• M35: 13,683,717 km (0.102 R)
• M36: 13,903,028 km (0.095 R)
• M37: 14,256,228 km (0.107 R)
• M38: 15,016,933 km (0.048 R)
• M39: 15,107,291 km (0.044 R)
• M40: 15,744,877 km (0.035 R)
• M41: 16,624,213 km (0.072 R)
• M42: 17,662,123 km (0.098 R)
• M43: 17,948,902 km (0.073 R)
• M44: 18,721,126 km (0.06 R)
• M45: 18,915,753 km (0.067 R)
• M46: 19,307,251 km (0.056 R)
• M47: 19,504,122 km (0.094 R)
• M48: 22,276,320 km (0.074 R)
• M49: 23,262,319 km (0.073 R)
• M50: 23,681,792 km (0.117 R)
• M51: 23,892,426 km (0.113 R)
• M52: 24,315,638 km (0.079 R)
• M53: 24,901,613 km (0.113 R)
• M54: 25,008,575 km (0.084 R)
• M55: 25,600,085 km (0.112 R)
• M56: 25,816,254 km (0.115 R)
• M57: 27,181,335 km (0.079 R)
• M58: 28,178,554 km (0.092 R)
• M59: 30,037,906 km (0.054 R)
• M60: 30,723,812 km (0.098 R)
• M61: 32,344,406 km (0.072 R)
• M62: 32,636,720 km (0.079 R)
• M63: 32,871,140 km (0.118 R)
• M64: 33,518,899 km (0.046 R)
• M65: 34,111,306 km (0.067 R)
• M66: 35,126,478 km (0.026 R)
• M67: 35,426,870 km (0.07 R)
• M68: 35,607,584 km (0.103 R)
• M69: 35,728,160 km (0.085 R)
• M70: 36,454,907 km (0.089 R)
• M71: 37,064,069 km (0.075 R)
• M72: 38,045,880 km (0.108 R)
• M73: 38,601,935 km (0.093 R)
• M74: 39,285,149 km (0.088 R)
• M75: 39,472,146 km (0.111 R)
• M76: 39,909,720 km (0.106 R)
• M77: 40,348,790 km (0.115 R)
• M78: 41,866,759 km (0.099 R)
• M79: 42,504,645 km (0.103 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 455 - 12,616 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit