🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.61 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.45

Radius: 0.73

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 1.07 AU - 1.35 AU

Year: 561 Days

Day: 29.6 Hours

Environment

Temp: -57 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.22 AU - 2.76 AU

Year: 1657 Days

Day: 26.2 Hours

Environment

Temp: -134 °C

Axial Tilt: 32.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 78,173,239 km

• M1: 197,619 km (0.076 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.27 AU - 2.83 AU

Year: 1717 Days

Day: 24.3 Hours

Environment

Temp: -135 °C

Axial Tilt: 26.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.45 AU - 3.19 AU

Year: 1997 Days

Day: 39.7 Hours

Environment

Temp: -138 °C

Axial Tilt: 22.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.93 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 9.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.6

Radius: 13.4

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 7.68 AU - 10.4 AU

Year: 11463 Days

Day: 8.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 78,173,239 km

• M1: 166,802 km (0.094 R)
• M2: 880,533 km (0.072 R)
• M3: 1,340,397 km (0.105 R)
• M4: 2,068,639 km (0.108 R)
• M5: 2,628,285 km (0.059 R)
• M6: 3,540,533 km (0.076 R)
• M7: 4,468,788 km (0.091 R)
• M8: 5,007,340 km (0.111 R)
• M9: 6,177,345 km (0.085 R)
• M10: 7,741,989 km (0.059 R)
• M11: 8,664,858 km (0.058 R)
• M12: 9,659,834 km (0.116 R)
• M13: 10,238,777 km (0.077 R)
• M14: 13,104,175 km (0.09 R)
• M15: 15,031,744 km (0.085 R)
• M16: 16,839,784 km (0.091 R)
• M17: 20,884,012 km (0.098 R)
• M18: 22,945,321 km (0.025 R)
• M19: 24,845,214 km (0.111 R)
• M20: 25,933,838 km (0.117 R)
• M21: 27,054,027 km (0.099 R)
• M22: 30,272,924 km (0.1 R)
• M23: 31,514,736 km (0.089 R)
• M24: 31,974,600 km (0.065 R)
• M25: 33,500,050 km (0.062 R)
• M26: 34,706,257 km (0.114 R)
• M27: 36,191,614 km (0.078 R)
• M28: 39,955,796 km (0.081 R)
• M29: 42,698,972 km (0.099 R)
• M30: 43,687,964 km (0.07 R)
• M31: 44,547,852 km (0.1 R)
• M32: 45,127,394 km (0.105 R)
• M33: 49,171,623 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 483.1

Radius: 8

Gravity: 7.55 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 11.64 AU - 13.42 AU

Year: 18706 Days

Day: 24.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 78,173,239 km

• M1: 100,081 km (0.105 R)
• M2: 681,568 km (0.114 R)
• M3: 1,489,097 km (0.084 R)
• M4: 1,759,869 km (0.12 R)
• M5: 2,552,888 km (0.086 R)
• M6: 4,085,368 km (0.08 R)
• M7: 5,170,252 km (0.111 R)
• M8: 6,231,948 km (0.077 R)
• M9: 8,985,147 km (0.083 R)
• M10: 15,438,949 km (0.081 R)
• M11: 17,535,114 km (0.106 R)
• M12: 21,624,223 km (0.063 R)
• M13: 29,282,138 km (0.094 R)
• M14: 31,625,139 km (0.091 R)
• M15: 32,229,814 km (0.06 R)
• M16: 32,596,329 km (0.117 R)
• M17: 36,680,500 km (0.052 R)
• M18: 51,619,792 km (0.107 R)
• M19: 57,141,450 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 14.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 515.3

Radius: 3.6

Gravity: 39.76 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 14.05 AU - 15.55 AU

Year: 24013 Days

Day: 15.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 78,173,239 km

• M1: 44,879 km (0.119 R)
• M2: 319,092 km (0.117 R)
• M3: 515,813 km (0.1 R)
• M4: 688,749 km (0.036 R)
• M5: 1,032,973 km (0.066 R)
• M6: 1,930,561 km (0.101 R)
• M7: 2,091,528 km (0.11 R)
• M8: 2,903,844 km (0.081 R)
• M9: 3,309,105 km (0.048 R)
• M10: 4,786,982 km (0.099 R)
• M11: 8,053,153 km (0.101 R)
• M12: 8,524,087 km (0.06 R)
• M13: 9,520,708 km (0.031 R)
• M14: 9,987,603 km (0.096 R)
• M15: 11,350,140 km (0.029 R)
• M16: 15,686,234 km (0.098 R)
• M17: 16,419,264 km (0.119 R)
• M18: 20,718,258 km (0.103 R)
• M19: 21,999,713 km (0.102 R)
• M20: 27,654,812 km (0.1 R)
• M21: 33,668,796 km (0.059 R)
• M22: 35,297,767 km (0.118 R)
• M23: 35,991,602 km (0.111 R)
• M24: 39,896,705 km (0.102 R)
• M25: 44,234,894 km (0.065 R)
• M26: 47,687,463 km (0.073 R)
• M27: 50,086,414 km (0.084 R)
• M28: 53,287,061 km (0.067 R)
• M29: 63,702,364 km (0.104 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 14,959 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit