🌌 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: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.47 AU - 0.59 AU

Year: 145 Days

Day: 47.8 Hours

Environment

Temp: 203 °C

Axial Tilt: 49.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.08

Radius: 1.03

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 0.62 AU - 0.9 AU

Year: 248 Days

Day: 46.7 Hours

Environment

Temp: 85 °C

Axial Tilt: 2.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.04 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.96 AU - 1.12 AU

Year: 397 Days

Day: 39.5 Hours

Environment

Temp: 11 °C

Axial Tilt: 14.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.2

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.23 AU - 1.59 AU

Year: 627 Days

Day: 21.7 Hours

Environment

Temp: -30 °C

Axial Tilt: 1.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 8.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.8

Radius: 8.9

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7 AU - 10.1 AU

Year: 9369 Days

Day: 9.3 Hours

Environment

Temp: -174 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,741,191 km

• M1: 110,702 km (0.073 R)
• M2: 475,871 km (0.116 R)
• M3: 802,443 km (0.11 R)
• M4: 1,127,370 km (0.092 R)
• M5: 1,970,054 km (0.092 R)
• M6: 2,288,997 km (0.054 R)
• M7: 2,727,768 km (0.091 R)
• M8: 3,013,649 km (0.096 R)
• M9: 3,839,729 km (0.04 R)
• M10: 4,437,073 km (0.069 R)
• M11: 5,095,154 km (0.069 R)
• M12: 6,293,732 km (0.088 R)
• M13: 6,604,896 km (0.115 R)
• M14: 7,565,912 km (0.047 R)
• M15: 9,477,773 km (0.051 R)
• M16: 11,232,706 km (0.106 R)
• M17: 11,598,772 km (0.036 R)
• M18: 12,306,818 km (0.096 R)
• M19: 14,821,110 km (0.044 R)
• M20: 15,373,425 km (0.117 R)
• M21: 19,829,198 km (0.11 R)
• M22: 22,530,337 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.6

Radius: 12.6

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 9.68 AU - 10.26 AU

Year: 11797 Days

Day: 11.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 62,741,191 km

• M1: 156,779 km (0.059 R)
• M2: 1,012,478 km (0.099 R)
• M3: 1,499,719 km (0.117 R)
• M4: 3,746,080 km (0.12 R)
• M5: 5,928,564 km (0.096 R)
• M6: 8,478,459 km (0.066 R)
• M7: 11,121,555 km (0.079 R)
• M8: 12,152,433 km (0.119 R)
• M9: 13,371,357 km (0.087 R)
• M10: 14,737,485 km (0.104 R)
• M11: 15,839,123 km (0.115 R)
• M12: 17,069,117 km (0.098 R)
• M13: 18,517,972 km (0.115 R)
• M14: 26,611,068 km (0.087 R)
• M15: 29,940,219 km (0.043 R)
• M16: 33,771,570 km (0.093 R)
• M17: 34,957,881 km (0.051 R)
• M18: 39,070,177 km (0.062 R)
• M19: 45,754,808 km (0.112 R)
• M20: 49,593,789 km (0.116 R)
• M21: 50,355,840 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 12.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 931.9

Radius: 4.2

Gravity: 52.83 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 10.12 AU - 15.76 AU

Year: 17443 Days

Day: 18.2 Hours

Environment

Temp: -179 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 62,741,191 km

• M1: 52,509 km (0.119 R)
• M2: 221,255 km (0.081 R)
• M3: 410,497 km (0.051 R)
• M4: 622,477 km (0.068 R)
• M5: 1,197,232 km (0.067 R)
• M6: 1,451,399 km (0.11 R)
• M7: 2,191,758 km (0.099 R)
• M8: 2,619,908 km (0.098 R)
• M9: 2,917,906 km (0.069 R)
• M10: 3,293,547 km (0.07 R)
• M11: 3,551,603 km (0.096 R)
• M12: 4,900,976 km (0.058 R)
• M13: 5,998,127 km (0.085 R)
• M14: 6,514,838 km (0.078 R)
• M15: 8,037,295 km (0.03 R)
• M16: 8,346,963 km (0.089 R)
• M17: 16,915,330 km (0.057 R)
• M18: 17,253,122 km (0.103 R)
• M19: 18,382,138 km (0.095 R)
• M20: 18,739,228 km (0.053 R)
• M21: 19,559,473 km (0.051 R)
• M22: 19,838,174 km (0.111 R)
• M23: 21,566,029 km (0.115 R)
• M24: 22,264,352 km (0.102 R)
• M25: 24,664,650 km (0.111 R)
• M26: 27,231,899 km (0.087 R)
• M27: 27,463,177 km (0.108 R)
• M28: 28,283,123 km (0.119 R)
• M29: 30,218,321 km (0.095 R)
• M30: 30,966,161 km (0.116 R)
• M31: 37,114,633 km (0.077 R)
• M32: 37,541,735 km (0.069 R)
• M33: 37,971,979 km (0.094 R)
• M34: 46,456,123 km (0.086 R)
• M35: 47,786,646 km (0.059 R)
• M36: 51,930,208 km (0.104 R)
• M37: 56,870,827 km (0.081 R)
• M38: 58,200,902 km (0.117 R)
• M39: 60,332,821 km (0.052 R)
• M40: 65,370,530 km (0.106 R)
• M41: 70,463,589 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.5

Radius: 3.1

Gravity: 30.33 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 14.76 AU - 16.32 AU

Year: 22956 Days

Day: 16.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,741,191 km

• M1: 38,596 km (0.066 R)
• M2: 158,125 km (0.101 R)
• M3: 801,396 km (0.082 R)
• M4: 2,312,484 km (0.085 R)
• M5: 2,546,754 km (0.077 R)
• M6: 4,360,030 km (0.069 R)
• M7: 5,271,231 km (0.045 R)
• M8: 6,507,059 km (0.035 R)
• M9: 7,191,918 km (0.119 R)
• M10: 7,782,680 km (0.054 R)
• M11: 9,111,857 km (0.082 R)
• M12: 17,099,785 km (0.06 R)
• M13: 24,531,358 km (0.103 R)
• M14: 24,632,037 km (0.026 R)
• M15: 27,454,949 km (0.087 R)
• M16: 27,563,557 km (0.074 R)
• M17: 33,115,134 km (0.116 R)
• M18: 34,864,382 km (0.108 R)
• M19: 39,229,349 km (0.046 R)
• M20: 40,761,530 km (0.092 R)
• M21: 45,293,149 km (0.041 R)
• M22: 61,805,313 km (0.1 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 300 - 12,070 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit