🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 0.44 AU - 0.64 AU

Year: 138 Days

Day: 36.4 Hours

Environment

Temp: 205 °C

Axial Tilt: 36.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.74 AU - 0.8 AU

Year: 235 Days

Day: 29.6 Hours

Environment

Temp: 179 °C

Axial Tilt: 19.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 76,738,933 km

• M1: 43,383 km (0.108 R)
• M2: 210,335 km (0.09 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.43

Radius: 1.43

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.88 AU - 0.92 AU

Year: 297 Days

Day: 24 Hours

Environment

Temp: 121 °C

Axial Tilt: 22 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.24 AU - 1.38 AU

Year: 522 Days

Day: 39.7 Hours

Environment

Temp: 19 °C

Axial Tilt: 29.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 76,738,933 km

• M1: 592,557 km (0.111 R)
• M2: 1,003,951 km (0.095 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.86

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 3.05 AU - 4.11 AU

Year: 2359 Days

Day: 31.7 Hours

Environment

Temp: -113 °C

Axial Tilt: 7.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 76,738,933 km

• M1: 260,450 km (0.059 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.76 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.65

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.95 AU - 5.57 AU

Year: 3617 Days

Day: 28.9 Hours

Environment

Temp: -119 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 11.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.5

Radius: 11.2

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 9.81 AU - 12.77 AU

Year: 13211 Days

Day: 13.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,738,933 km

• M1: 139,276 km (0.046 R)
• M2: 1,257,669 km (0.11 R)
• M3: 2,089,733 km (0.07 R)
• M4: 2,970,864 km (0.098 R)
• M5: 4,531,768 km (0.071 R)
• M6: 5,146,167 km (0.093 R)
• M7: 6,661,444 km (0.118 R)
• M8: 8,082,324 km (0.107 R)
• M9: 9,592,215 km (0.063 R)
• M10: 12,721,205 km (0.086 R)
• M11: 19,295,433 km (0.059 R)
• M12: 24,109,193 km (0.089 R)
• M13: 25,278,151 km (0.117 R)
• M14: 28,903,805 km (0.12 R)
• M15: 29,778,653 km (0.066 R)
• M16: 30,783,951 km (0.108 R)
• M17: 45,840,827 km (0.082 R)
• M18: 46,581,935 km (0.054 R)
• M19: 50,094,193 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 306.4

Radius: 3.7

Gravity: 22.38 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 19.26 AU - 20 AU

Year: 30288 Days

Day: 18.6 Hours

Environment

Temp: -187 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 76,738,933 km

• M1: 66,122 km (0.05 R)
• M2: 203,154 km (0.071 R)
• M3: 320,738 km (0.078 R)
• M4: 678,127 km (0.103 R)
• M5: 896,540 km (0.072 R)
• M6: 1,441,226 km (0.052 R)
• M7: 1,589,328 km (0.115 R)
• M8: 3,334,237 km (0.103 R)
• M9: 3,962,249 km (0.079 R)
• M10: 4,560,491 km (0.112 R)
• M11: 4,844,727 km (0.089 R)
• M12: 6,446,322 km (0.082 R)
• M13: 6,988,165 km (0.108 R)
• M14: 7,270,157 km (0.118 R)
• M15: 7,857,030 km (0.064 R)
• M16: 12,736,314 km (0.05 R)
• M17: 12,875,590 km (0.058 R)
• M18: 13,952,096 km (0.039 R)
• M19: 14,249,048 km (0.113 R)
• M20: 18,680,137 km (0.114 R)
• M21: 19,040,817 km (0.075 R)
• M22: 19,869,140 km (0.1 R)
• M23: 21,994,777 km (0.1 R)
• M24: 22,498,173 km (0.083 R)
• M25: 28,079,221 km (0.059 R)
• M26: 29,514,613 km (0.068 R)
• M27: 30,250,185 km (0.094 R)
• M28: 30,872,513 km (0.088 R)
• M29: 32,530,356 km (0.1 R)
• M30: 32,660,357 km (0.109 R)
• M31: 33,845,471 km (0.088 R)
• M32: 38,581,141 km (0.038 R)
• M33: 47,311,523 km (0.112 R)
• M34: 50,027,922 km (0.083 R)
• M35: 50,897,684 km (0.089 R)
• M36: 51,072,713 km (0.085 R)
• M37: 56,516,131 km (0.12 R)
• M38: 59,960,771 km (0.117 R)
• M39: 65,179,643 km (0.115 R)
• M40: 69,179,142 km (0.088 R)

Kuiper Belt

Range: 31.5 - 58.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 18,265 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit