🌌 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: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.62 AU - 0.84 AU

Year: 226 Days

Day: 45.9 Hours

Environment

Temp: 111 °C

Axial Tilt: 32.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,351,483 km

• M1: 54,454 km (0.11 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.83 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.15

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.69 AU - 0.97 AU

Year: 273 Days

Day: 18.5 Hours

Environment

Temp: 92 °C

Axial Tilt: 41 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.69 AU - 1.05 AU

Year: 293 Days

Day: 23.8 Hours

Environment

Temp: 126 °C

Axial Tilt: 33.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.24 AU - 1.58 AU

Year: 606 Days

Day: 28.3 Hours

Environment

Temp: -0 °C

Axial Tilt: 25.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.38

Radius: 1.63

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.82 AU - 2.54 AU

Year: 1164 Days

Day: 26 Hours

Environment

Temp: -80 °C

Axial Tilt: 13.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 53,351,483 km

• M1: 382,073 km (0.096 R)
• M2: 431,739 km (0.069 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.04

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.15 AU - 3.67 AU

Year: 2277 Days

Day: 26.6 Hours

Environment

Temp: -103 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,351,483 km

• M1: 40,840 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.9

Radius: 9

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 4.32 AU - 5.66 AU

Year: 4031 Days

Day: 11.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,351,483 km

• M1: 115,041 km (0.087 R)
• M2: 510,727 km (0.106 R)
• M3: 914,342 km (0.113 R)
• M4: 1,441,076 km (0.077 R)
• M5: 2,474,050 km (0.1 R)
• M6: 3,578,830 km (0.095 R)
• M7: 4,412,539 km (0.085 R)
• M8: 5,370,115 km (0.111 R)
• M9: 6,249,601 km (0.113 R)
• M10: 7,559,180 km (0.045 R)
• M11: 10,219,629 km (0.104 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.2

Radius: 10.1

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 4.22 AU - 6.1 AU

Year: 4239 Days

Day: 10 Hours

Environment

Temp: -142 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,351,483 km

• M1: 125,812 km (0.104 R)
• M2: 959,072 km (0.093 R)
• M3: 1,416,841 km (0.116 R)
• M4: 1,902,436 km (0.082 R)
• M5: 2,348,238 km (0.12 R)
• M6: 3,320,175 km (0.109 R)
• M7: 4,942,714 km (0.112 R)
• M8: 5,291,426 km (0.084 R)
• M9: 5,982,868 km (0.091 R)
• M10: 6,321,707 km (0.067 R)
• M11: 7,874,682 km (0.088 R)
• M12: 8,956,873 km (0.097 R)
• M13: 9,591,019 km (0.074 R)
• M14: 10,017,223 km (0.117 R)
• M15: 10,618,457 km (0.036 R)
• M16: 11,371,682 km (0.112 R)
• M17: 12,476,462 km (0.086 R)
• M18: 14,190,854 km (0.064 R)
• M19: 15,523,023 km (0.09 R)
• M20: 18,257,373 km (0.104 R)
• M21: 19,154,811 km (0.102 R)
• M22: 20,587,659 km (0.117 R)
• M23: 21,824,085 km (0.091 R)
• M24: 22,630,119 km (0.037 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.2

Radius: 12.2

Gravity: 0.43 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 7.14 AU - 11.86 AU

Year: 10590 Days

Day: 13.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 53,351,483 km

• M1: 162,014 km (0.113 R)
• M2: 973,882 km (0.046 R)
• M3: 2,425,430 km (0.055 R)
• M4: 3,028,310 km (0.119 R)
• M5: 3,749,072 km (0.062 R)
• M6: 5,251,633 km (0.104 R)
• M7: 6,152,811 km (0.076 R)
• M8: 9,592,814 km (0.114 R)
• M9: 12,952,632 km (0.067 R)
• M10: 18,050,180 km (0.088 R)
• M11: 20,155,022 km (0.106 R)

Planet 10 - Gas Giant

Semi-Major Axis: 11.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 423.2

Radius: 14.9

Gravity: 1.91 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 11.58 AU - 12.32 AU

Year: 14940 Days

Day: 9 Hours

Environment

Temp: -177 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,351,483 km

• M1: 185,651 km (0.12 R)
• M2: 736,171 km (0.099 R)
• M3: 1,468,602 km (0.071 R)
• M4: 1,960,330 km (0.102 R)
• M5: 2,922,245 km (0.111 R)
• M6: 3,461,994 km (0.114 R)
• M7: 4,622,275 km (0.096 R)
• M8: 6,101,948 km (0.102 R)
• M9: 7,114,127 km (0.054 R)
• M10: 7,704,141 km (0.103 R)
• M11: 8,326,617 km (0.105 R)
• M12: 8,839,289 km (0.099 R)
• M13: 10,345,441 km (0.047 R)
• M14: 11,842,317 km (0.091 R)
• M15: 12,612,596 km (0.106 R)
• M16: 13,927,412 km (0.093 R)
• M17: 15,609,790 km (0.117 R)
• M18: 16,828,863 km (0.065 R)
• M19: 18,656,799 km (0.051 R)
• M20: 20,952,977 km (0.113 R)
• M21: 22,794,676 km (0.082 R)
• M22: 24,362,911 km (0.109 R)
• M23: 26,398,339 km (0.077 R)
• M24: 32,720,944 km (0.079 R)
• M25: 33,299,140 km (0.107 R)
• M26: 34,357,096 km (0.12 R)
• M27: 38,301,094 km (0.057 R)
• M28: 41,315,790 km (0.089 R)
• M29: 42,263,792 km (0.115 R)
• M30: 50,840,088 km (0.097 R)
• M31: 52,557,921 km (0.037 R)

Kuiper Belt

Range: 30.3 - 47.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 11,939 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit