🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.28

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.49 AU - 0.63 AU

Year: 155 Days

Day: 23 Hours

Environment

Temp: 219 °C

Axial Tilt: 90.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.56

Radius: 1.66

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.08 AU - 1.2 AU

Year: 449 Days

Day: 28.1 Hours

Environment

Temp: 23 °C

Axial Tilt: 12.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.55

Radius: 1.19

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.12 AU - 1.18 AU

Year: 455 Days

Day: 25.1 Hours

Environment

Temp: 7 °C

Axial Tilt: 17.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 61,389,294 km

• M1: 28,124 km (0.078 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.28 AU - 2.32 AU

Year: 1287 Days

Day: 47.4 Hours

Environment

Temp: -74 °C

Axial Tilt: 39.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.37

Radius: 1.13

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 2.97 AU - 4.53 AU

Year: 2679 Days

Day: 33.6 Hours

Environment

Temp: -132 °C

Axial Tilt: 42.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.9

Radius: 12.8

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.73 AU - 6.79 AU

Year: 5779 Days

Day: 11.4 Hours

Environment

Temp: -147 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 61,389,294 km

• M1: 160,818 km (0.109 R)
• M2: 616,343 km (0.105 R)
• M3: 1,021,005 km (0.102 R)
• M4: 1,445,714 km (0.088 R)
• M5: 3,613,387 km (0.062 R)
• M6: 5,589,126 km (0.086 R)
• M7: 6,276,229 km (0.108 R)
• M8: 8,203,199 km (0.101 R)
• M9: 8,639,726 km (0.1 R)
• M10: 14,296,321 km (0.109 R)
• M11: 15,462,436 km (0.06 R)
• M12: 16,565,421 km (0.067 R)
• M13: 17,851,514 km (0.053 R)
• M14: 20,694,921 km (0.032 R)
• M15: 22,879,947 km (0.079 R)
• M16: 24,392,382 km (0.106 R)
• M17: 26,396,993 km (0.065 R)
• M18: 28,780,835 km (0.097 R)
• M19: 29,606,316 km (0.101 R)
• M20: 31,594,023 km (0.12 R)
• M21: 32,080,216 km (0.036 R)
• M22: 33,669,394 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 556

Radius: 13.3

Gravity: 3.14 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 6.4 AU - 7.48 AU

Year: 6746 Days

Day: 9.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 45.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,389,294 km

• M1: 168,746 km (0.1 R)
• M2: 620,981 km (0.064 R)
• M3: 1,035,068 km (0.067 R)
• M4: 1,583,045 km (0.117 R)
• M5: 2,195,648 km (0.066 R)
• M6: 2,683,038 km (0.088 R)
• M7: 3,161,003 km (0.113 R)
• M8: 4,291,365 km (0.055 R)
• M9: 6,338,312 km (0.103 R)
• M10: 7,194,461 km (0.028 R)
• M11: 8,601,578 km (0.108 R)
• M12: 9,264,147 km (0.1 R)
• M13: 10,413,059 km (0.091 R)
• M14: 16,848,161 km (0.107 R)
• M15: 21,858,642 km (0.102 R)
• M16: 25,198,864 km (0.069 R)
• M17: 27,429,069 km (0.093 R)
• M18: 28,501,686 km (0.086 R)
• M19: 32,377,766 km (0.055 R)
• M20: 33,374,088 km (0.1 R)
• M21: 34,287,982 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 484.5

Radius: 5.5

Gravity: 16.02 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 12.66 AU - 13.28 AU

Year: 17234 Days

Day: 20.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 61,389,294 km

• M1: 75,996 km (0.116 R)
• M2: 314,904 km (0.104 R)
• M3: 660,923 km (0.12 R)
• M4: 895,044 km (0.117 R)
• M5: 1,302,399 km (0.093 R)
• M6: 1,842,747 km (0.072 R)
• M7: 2,353,175 km (0.093 R)
• M8: 2,858,516 km (0.112 R)
• M9: 3,124,352 km (0.102 R)
• M10: 3,540,533 km (0.104 R)
• M11: 3,818,934 km (0.102 R)
• M12: 4,141,916 km (0.071 R)
• M13: 5,363,532 km (0.1 R)
• M14: 6,892,423 km (0.097 R)
• M15: 7,918,963 km (0.101 R)
• M16: 9,564,241 km (0.094 R)
• M17: 9,940,330 km (0.047 R)
• M18: 10,722,427 km (0.102 R)
• M19: 12,094,838 km (0.078 R)
• M20: 12,598,534 km (0.113 R)
• M21: 13,247,639 km (0.098 R)
• M22: 13,580,345 km (0.036 R)
• M23: 19,605,998 km (0.103 R)
• M24: 22,201,820 km (0.104 R)
• M25: 23,630,330 km (0.045 R)
• M26: 24,816,492 km (0.06 R)
• M27: 29,618,284 km (0.073 R)
• M28: 32,898,816 km (0.069 R)
• M29: 34,251,180 km (0.119 R)
• M30: 37,993,521 km (0.099 R)
• M31: 40,867,595 km (0.08 R)
• M32: 42,573,160 km (0.104 R)
• M33: 44,920,501 km (0.075 R)
• M34: 45,370,042 km (0.077 R)
• M35: 51,817,561 km (0.065 R)
• M36: 55,002,200 km (0.098 R)
• M37: 58,314,746 km (0.065 R)
• M38: 58,671,088 km (0.051 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 538 - 10,872 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit