🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.08

Radius: 1.34

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.58 AU - 0.6 AU

Year: 166 Days

Day: 30.8 Hours

Environment

Temp: 185 °C

Axial Tilt: 7.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.86 AU - 2.24 AU

Year: 1072 Days

Day: 17.9 Hours

Environment

Temp: -60 °C

Axial Tilt: 32.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.84

Radius: 0.93

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.49 AU - 3.67 AU

Year: 1974 Days

Day: 17.2 Hours

Environment

Temp: -95 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.76 AU - 3.78 AU

Year: 2160 Days

Day: 28.5 Hours

Environment

Temp: -116 °C

Axial Tilt: 34.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 91,514,852 km

• M1: 36,801 km (0.081 R)
• M2: 2,697,100 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.5

Radius: 11.3

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 5.8 AU - 7 AU

Year: 5914 Days

Day: 12 Hours

Environment

Temp: -143 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,514,852 km

• M1: 140,921 km (0.04 R)
• M2: 1,067,979 km (0.115 R)
• M3: 1,442,123 km (0.108 R)
• M4: 2,039,917 km (0.101 R)
• M5: 3,194,214 km (0.075 R)
• M6: 3,628,945 km (0.072 R)
• M7: 4,170,789 km (0.114 R)
• M8: 4,816,154 km (0.112 R)
• M9: 5,444,615 km (0.115 R)
• M10: 5,835,963 km (0.089 R)
• M11: 6,865,495 km (0.098 R)
• M12: 7,423,794 km (0.04 R)
• M13: 7,941,403 km (0.037 R)
• M14: 10,596,316 km (0.097 R)
• M15: 12,696,970 km (0.076 R)
• M16: 13,742,808 km (0.109 R)
• M17: 19,980,890 km (0.108 R)
• M18: 21,670,897 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 10.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 980.8

Radius: 9.9

Gravity: 10.01 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 8.33 AU - 12.81 AU

Year: 12552 Days

Day: 11.3 Hours

Environment

Temp: -188 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 91,514,852 km

• M1: 123,119 km (0.108 R)
• M2: 431,291 km (0.073 R)
• M3: 1,575,565 km (0.084 R)
• M4: 1,956,291 km (0.115 R)
• M5: 2,357,363 km (0.109 R)
• M6: 2,677,054 km (0.096 R)
• M7: 3,074,835 km (0.115 R)
• M8: 3,620,418 km (0.107 R)
• M9: 4,352,999 km (0.089 R)
• M10: 4,939,422 km (0.051 R)
• M11: 5,802,303 km (0.09 R)
• M12: 6,472,053 km (0.08 R)
• M13: 7,018,384 km (0.119 R)
• M14: 9,358,394 km (0.085 R)
• M15: 9,947,660 km (0.104 R)
• M16: 10,279,468 km (0.074 R)
• M17: 12,301,283 km (0.092 R)
• M18: 13,607,422 km (0.116 R)
• M19: 17,997,222 km (0.073 R)
• M20: 18,740,724 km (0.073 R)
• M21: 21,094,497 km (0.064 R)
• M22: 21,643,072 km (0.086 R)
• M23: 23,056,323 km (0.11 R)
• M24: 25,341,431 km (0.112 R)
• M25: 29,668,250 km (0.084 R)
• M26: 31,766,809 km (0.043 R)
• M27: 33,962,307 km (0.12 R)
• M28: 45,253,655 km (0.109 R)
• M29: 50,751,826 km (0.11 R)
• M30: 52,567,645 km (0.11 R)
• M31: 56,679,043 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 657.7

Radius: 3.4

Gravity: 56.89 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 13.52 AU - 21.64 AU

Year: 26923 Days

Day: 23.1 Hours

Environment

Temp: -206 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 91,514,852 km

• M1: 42,935 km (0.097 R)
• M2: 181,462 km (0.066 R)
• M3: 515,963 km (0.062 R)
• M4: 1,029,682 km (0.09 R)
• M5: 1,155,195 km (0.058 R)
• M6: 1,322,744 km (0.108 R)
• M7: 2,462,979 km (0.06 R)
• M8: 3,419,957 km (0.111 R)
• M9: 5,022,001 km (0.033 R)
• M10: 6,346,690 km (0.094 R)
• M11: 8,658,725 km (0.103 R)
• M12: 9,358,544 km (0.077 R)
• M13: 9,599,995 km (0.12 R)
• M14: 10,803,958 km (0.07 R)
• M15: 11,963,342 km (0.116 R)
• M16: 13,660,380 km (0.118 R)
• M17: 20,198,106 km (0.046 R)
• M18: 25,629,556 km (0.086 R)
• M19: 31,822,459 km (0.116 R)
• M20: 33,477,909 km (0.081 R)
• M21: 39,097,254 km (0.078 R)
• M22: 42,128,705 km (0.096 R)
• M23: 44,629,982 km (0.099 R)
• M24: 48,474,796 km (0.105 R)
• M25: 50,662,067 km (0.079 R)
• M26: 54,452,279 km (0.085 R)
• M27: 58,223,940 km (0.038 R)
• M28: 59,039,548 km (0.059 R)
• M29: 66,503,733 km (0.051 R)
• M30: 71,503,444 km (0.095 R)
• M31: 81,732,497 km (0.095 R)
• M32: 81,987,263 km (0.1 R)
• M33: 88,798,005 km (0.07 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 355 - 12,357 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit