🌌 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: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.54 AU - 0.56 AU

Year: 144 Days

Day: 15.6 Hours

Environment

Temp: 187 °C

Axial Tilt: 6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 69,181,660 km

• M1: 34,258 km (0.066 R)
• M2: 133,142 km (0.107 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.56

Radius: 1.46

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 0.67 AU - 1.05 AU

Year: 282 Days

Day: 35.2 Hours

Environment

Temp: 109 °C

Axial Tilt: 26.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.33 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.24 AU - 1.42 AU

Year: 542 Days

Day: 15 Hours

Environment

Temp: 6 °C

Axial Tilt: 15 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.31 AU - 2.57 AU

Year: 1346 Days

Day: 16.9 Hours

Environment

Temp: -64 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,181,660 km

• M1: 46,375 km (0.076 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.84

Radius: 1.71

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.08 AU - 5.5 AU

Year: 3702 Days

Day: 19.6 Hours

Environment

Temp: -137 °C

Axial Tilt: 163 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 3.92 AU - 5.74 AU

Year: 3748 Days

Day: 30 Hours

Environment

Temp: -131 °C

Axial Tilt: 12.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 69,181,660 km

• M1: 1,456,784 km (0.046 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 464.5

Radius: 9.1

Gravity: 5.61 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 7.02 AU - 9.6 AU

Year: 8459 Days

Day: 13 Hours

Environment

Temp: -171 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,181,660 km

• M1: 113,096 km (0.089 R)
• M2: 743,202 km (0.098 R)
• M3: 1,343,688 km (0.047 R)
• M4: 2,077,615 km (0.102 R)
• M5: 3,673,675 km (0.062 R)
• M6: 4,011,916 km (0.074 R)
• M7: 4,723,104 km (0.038 R)
• M8: 5,302,347 km (0.038 R)
• M9: 9,149,555 km (0.064 R)
• M10: 10,569,090 km (0.099 R)
• M11: 11,206,077 km (0.103 R)
• M12: 13,839,149 km (0.081 R)
• M13: 14,304,997 km (0.087 R)
• M14: 17,390,453 km (0.116 R)
• M15: 19,848,496 km (0.07 R)
• M16: 24,755,605 km (0.071 R)
• M17: 28,974,116 km (0.083 R)
• M18: 35,348,032 km (0.091 R)
• M19: 36,549,153 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.2

Radius: 12

Gravity: 4.63 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 10.02 AU - 10.92 AU

Year: 11962 Days

Day: 13.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,181,660 km

• M1: 149,448 km (0.086 R)
• M2: 576,101 km (0.116 R)
• M3: 953,387 km (0.062 R)
• M4: 1,358,797 km (0.099 R)
• M5: 2,155,556 km (0.082 R)
• M6: 2,680,794 km (0.096 R)
• M7: 4,046,922 km (0.096 R)
• M8: 4,726,246 km (0.118 R)
• M9: 6,088,185 km (0.101 R)
• M10: 6,981,433 km (0.07 R)
• M11: 7,609,894 km (0.088 R)
• M12: 9,774,575 km (0.079 R)
• M13: 12,084,666 km (0.043 R)
• M14: 15,561,769 km (0.107 R)
• M15: 17,910,306 km (0.088 R)
• M16: 18,375,705 km (0.044 R)
• M17: 22,934,550 km (0.116 R)
• M18: 29,574,003 km (0.097 R)
• M19: 30,884,780 km (0.087 R)
• M20: 32,006,464 km (0.043 R)
• M21: 37,391,988 km (0.111 R)
• M22: 40,763,924 km (0.088 R)
• M23: 44,192,557 km (0.117 R)
• M24: 48,255,636 km (0.113 R)
• M25: 48,705,177 km (0.09 R)
• M26: 53,356,025 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 215.4

Radius: 5.2

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 15.72 AU - 23.72 AU

Year: 30921 Days

Day: 22.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,181,660 km

• M1: 81,082 km (0.028 R)
• M2: 392,395 km (0.095 R)
• M3: 742,005 km (0.085 R)
• M4: 1,068,727 km (0.096 R)
• M5: 1,336,358 km (0.092 R)
• M6: 1,614,610 km (0.113 R)
• M7: 2,064,600 km (0.087 R)
• M8: 2,878,263 km (0.108 R)
• M9: 4,758,858 km (0.113 R)
• M10: 5,333,164 km (0.072 R)
• M11: 10,767,756 km (0.094 R)
• M12: 16,141,909 km (0.098 R)
• M13: 22,671,707 km (0.057 R)
• M14: 30,887,024 km (0.066 R)
• M15: 48,135,957 km (0.067 R)
• M16: 50,787,580 km (0.106 R)
• M17: 54,945,204 km (0.111 R)
• M18: 55,123,075 km (0.045 R)
• M19: 62,756,456 km (0.113 R)

Kuiper Belt

Range: 31.1 - 54.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 294 - 17,964 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit