🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 0.74 AU - 0.74 AU

Year: 235 Days

Day: 21.3 Hours

Environment

Temp: 129 °C

Axial Tilt: 1.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 70,342,059 km

• M1: 29,022 km (0.079 R)
• M2: 227,688 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.37

Radius: 0.67

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.91 AU - 1.19 AU

Year: 397 Days

Day: 38.8 Hours

Environment

Temp: 20 °C

Axial Tilt: 10.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 70,342,059 km

• M1: 133,292 km (0.08 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.11 AU - 1.29 AU

Year: 485 Days

Day: 20.2 Hours

Environment

Temp: 7 °C

Axial Tilt: 32.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,342,059 km

• M1: 251,474 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.76

Radius: 1.87

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.44 AU - 1.58 AU

Year: 685 Days

Day: 36.2 Hours

Environment

Temp: -49 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,342,059 km

• M1: 1,396,646 km (0.116 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.86

Radius: 1.88

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.31 AU - 1.79 AU

Year: 712 Days

Day: 24.1 Hours

Environment

Temp: -52 °C

Axial Tilt: 34.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,342,059 km

• M1: 128,205 km (0.081 R)

Planet 6 - Terrestrial

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 2.43 AU - 3.41 AU

Year: 1841 Days

Day: 34.8 Hours

Environment

Temp: -103 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 264.5

Radius: 8.8

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 5.42 AU - 6.42 AU

Year: 5314 Days

Day: 13.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,342,059 km

• M1: 111,600 km (0.094 R)
• M2: 482,902 km (0.093 R)
• M3: 870,360 km (0.103 R)
• M4: 1,226,852 km (0.096 R)
• M5: 1,834,519 km (0.067 R)
• M6: 2,131,470 km (0.063 R)
• M7: 2,598,665 km (0.117 R)
• M8: 3,295,641 km (0.118 R)
• M9: 3,839,579 km (0.115 R)
• M10: 4,464,898 km (0.082 R)
• M11: 6,084,145 km (0.111 R)
• M12: 6,933,562 km (0.118 R)
• M13: 7,629,192 km (0.118 R)
• M14: 7,926,892 km (0.102 R)
• M15: 8,723,052 km (0.072 R)
• M16: 11,998,796 km (0.07 R)
• M17: 13,000,504 km (0.083 R)
• M18: 13,378,238 km (0.089 R)
• M19: 14,860,304 km (0.097 R)
• M20: 15,961,046 km (0.118 R)
• M21: 19,160,645 km (0.095 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 720

Radius: 13.8

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.8 AU - 8.48 AU

Year: 7791 Days

Day: 12.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 70,342,059 km

• M1: 191,186 km (0.11 R)
• M2: 711,787 km (0.102 R)
• M3: 1,303,446 km (0.026 R)
• M4: 2,219,584 km (0.076 R)
• M5: 3,326,309 km (0.072 R)
• M6: 4,197,716 km (0.117 R)
• M7: 7,505,026 km (0.111 R)
• M8: 10,398,249 km (0.111 R)
• M9: 10,994,845 km (0.075 R)
• M10: 12,531,215 km (0.064 R)
• M11: 13,092,955 km (0.093 R)
• M12: 14,632,617 km (0.084 R)
• M13: 17,301,143 km (0.086 R)
• M14: 27,046,248 km (0.112 R)
• M15: 29,337,638 km (0.117 R)
• M16: 34,195,081 km (0.095 R)
• M17: 39,205,563 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 796.9

Radius: 7.8

Gravity: 13.1 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 10.6 AU - 14.58 AU

Year: 16482 Days

Day: 19.9 Hours

Environment

Temp: -186 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,342,059 km

• M1: 97,089 km (0.12 R)
• M2: 436,078 km (0.049 R)
• M3: 756,816 km (0.055 R)
• M4: 1,261,708 km (0.07 R)
• M5: 1,723,068 km (0.099 R)
• M6: 2,169,468 km (0.092 R)
• M7: 2,906,986 km (0.119 R)
• M8: 3,713,169 km (0.115 R)
• M9: 4,105,714 km (0.078 R)
• M10: 5,081,391 km (0.078 R)
• M11: 5,918,989 km (0.106 R)
• M12: 6,540,868 km (0.115 R)
• M13: 6,889,880 km (0.073 R)
• M14: 10,673,658 km (0.06 R)
• M15: 11,281,475 km (0.052 R)
• M16: 11,720,395 km (0.112 R)
• M17: 15,043,412 km (0.088 R)
• M18: 15,575,382 km (0.043 R)
• M19: 17,164,560 km (0.083 R)
• M20: 23,173,159 km (0.097 R)
• M21: 27,988,864 km (0.101 R)
• M22: 29,731,679 km (0.073 R)
• M23: 32,794,995 km (0.101 R)
• M24: 34,730,492 km (0.029 R)
• M25: 39,397,497 km (0.104 R)
• M26: 44,310,889 km (0.098 R)
• M27: 45,089,247 km (0.042 R)
• M28: 45,403,103 km (0.1 R)
• M29: 46,833,708 km (0.104 R)
• M30: 47,804,000 km (0.104 R)
• M31: 62,245,280 km (0.064 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 159 - 16,620 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit