🌌 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: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.46 AU - 0.62 AU

Year: 148 Days

Day: 20.1 Hours

Environment

Temp: 229 °C

Axial Tilt: 34 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.55 AU - 0.63 AU

Year: 169 Days

Day: 36.2 Hours

Environment

Temp: 174 °C

Axial Tilt: 28.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.01 AU - 1.59 AU

Year: 553 Days

Day: 27.3 Hours

Environment

Temp: -21 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.47

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 2.99 AU - 4.59 AU

Year: 2751 Days

Day: 20.8 Hours

Environment

Temp: -125 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.31 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.7

Radius: 11

Gravity: 5.98 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.67 AU - 5.99 AU

Year: 3957 Days

Day: 5.4 Hours

Environment

Temp: -136 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,051,780 km

• M1: 137,181 km (0.109 R)
• M2: 586,274 km (0.109 R)
• M3: 1,010,683 km (0.077 R)
• M4: 1,653,954 km (0.043 R)
• M5: 2,132,069 km (0.104 R)
• M6: 2,474,798 km (0.109 R)
• M7: 3,160,255 km (0.056 R)
• M8: 4,515,761 km (0.083 R)
• M9: 5,404,223 km (0.086 R)
• M10: 5,933,500 km (0.119 R)
• M11: 6,713,354 km (0.11 R)
• M12: 7,458,950 km (0.086 R)
• M13: 8,367,458 km (0.116 R)
• M14: 10,403,784 km (0.081 R)
• M15: 12,702,654 km (0.102 R)
• M16: 13,289,377 km (0.069 R)
• M17: 14,942,434 km (0.094 R)
• M18: 16,212,370 km (0.105 R)
• M19: 17,975,231 km (0.037 R)
• M20: 20,058,232 km (0.061 R)
• M21: 21,056,349 km (0.118 R)
• M22: 22,864,389 km (0.108 R)
• M23: 24,473,314 km (0.08 R)
• M24: 25,922,469 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.9

Radius: 13.8

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 6.42 AU - 10.56 AU

Year: 9222 Days

Day: 12 Hours

Environment

Temp: -170 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 44,051,780 km

• M1: 171,738 km (0.043 R)
• M2: 847,771 km (0.05 R)
• M3: 1,288,486 km (0.05 R)
• M4: 4,736,269 km (0.084 R)
• M5: 5,442,071 km (0.078 R)
• M6: 5,921,682 km (0.117 R)
• M7: 6,647,232 km (0.072 R)
• M8: 7,130,283 km (0.041 R)
• M9: 8,990,084 km (0.081 R)
• M10: 9,662,975 km (0.059 R)
• M11: 11,607,748 km (0.093 R)
• M12: 12,358,430 km (0.067 R)
• M13: 13,647,215 km (0.032 R)
• M14: 17,805,587 km (0.062 R)
• M15: 21,189,192 km (0.04 R)
• M16: 22,026,940 km (0.117 R)
• M17: 23,032,238 km (0.073 R)
• M18: 24,293,797 km (0.071 R)
• M19: 25,757,612 km (0.103 R)
• M20: 26,471,194 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.3

Radius: 8.8

Gravity: 5.67 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 8.62 AU - 10.48 AU

Year: 11002 Days

Day: 11.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,051,780 km

• M1: 109,655 km (0.118 R)
• M2: 534,064 km (0.107 R)
• M3: 829,520 km (0.055 R)
• M4: 1,343,987 km (0.103 R)
• M5: 1,821,354 km (0.034 R)
• M6: 2,464,027 km (0.083 R)
• M7: 2,964,132 km (0.105 R)
• M8: 4,194,276 km (0.098 R)
• M9: 6,288,047 km (0.107 R)
• M10: 6,688,521 km (0.084 R)
• M11: 7,703,094 km (0.086 R)
• M12: 10,330,780 km (0.082 R)
• M13: 10,734,844 km (0.036 R)
• M14: 12,121,467 km (0.114 R)
• M15: 12,915,682 km (0.102 R)
• M16: 14,109,922 km (0.052 R)
• M17: 15,052,837 km (0.097 R)
• M18: 15,770,458 km (0.107 R)
• M19: 17,700,270 km (0.033 R)
• M20: 21,857,146 km (0.076 R)
• M21: 24,963,696 km (0.115 R)
• M22: 29,648,353 km (0.103 R)
• M23: 30,568,231 km (0.049 R)
• M24: 31,506,957 km (0.093 R)
• M25: 36,957,855 km (0.099 R)
• M26: 39,720,329 km (0.101 R)
• M27: 40,090,584 km (0.096 R)
• M28: 42,360,283 km (0.111 R)
• M29: 43,265,499 km (0.032 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 13,208 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit