🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.91

Radius: 1.53

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.92 AU - 1.24 AU

Year: 421 Days

Day: 20.2 Hours

Environment

Temp: 9 °C

Axial Tilt: 27.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.42 AU - 1.48 AU

Year: 654 Days

Day: 45.3 Hours

Environment

Temp: -49 °C

Axial Tilt: 44.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.48

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.05 AU - 2.67 AU

Year: 1359 Days

Day: 45.5 Hours

Environment

Temp: -98 °C

Axial Tilt: 22.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.85

Radius: 0.94

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.05 AU - 2.99 AU

Year: 1499 Days

Day: 29.9 Hours

Environment

Temp: -94 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,628,578 km

• M1: 22,290 km (0.114 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.42

Radius: 0.71

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 2.53 AU - 2.97 AU

Year: 1709 Days

Day: 17.7 Hours

Environment

Temp: -93 °C

Axial Tilt: 38.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.67 AU - 4.99 AU

Year: 3376 Days

Day: 35.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 84,628,578 km

• M1: 23,786 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.6

Radius: 12.7

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 4.54 AU - 5.34 AU

Year: 4115 Days

Day: 8.5 Hours

Environment

Temp: -145 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,628,578 km

• M1: 157,975 km (0.1 R)
• M2: 580,889 km (0.078 R)
• M3: 1,133,952 km (0.079 R)
• M4: 1,737,878 km (0.068 R)
• M5: 2,172,610 km (0.044 R)
• M6: 3,099,219 km (0.119 R)
• M7: 3,561,776 km (0.103 R)
• M8: 4,651,895 km (0.083 R)
• M9: 5,208,848 km (0.065 R)
• M10: 6,010,842 km (0.116 R)
• M11: 7,930,632 km (0.101 R)
• M12: 8,653,190 km (0.108 R)
• M13: 9,223,606 km (0.039 R)
• M14: 11,308,253 km (0.087 R)
• M15: 12,037,243 km (0.118 R)
• M16: 13,041,194 km (0.048 R)
• M17: 14,945,126 km (0.095 R)
• M18: 15,711,666 km (0.09 R)
• M19: 18,231,044 km (0.071 R)
• M20: 19,297,527 km (0.084 R)
• M21: 19,944,089 km (0.088 R)
• M22: 23,106,139 km (0.058 R)
• M23: 23,541,918 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.2

Radius: 9.4

Gravity: 7.19 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 6.9 AU - 7.66 AU

Year: 7361 Days

Day: 14.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,628,578 km

• M1: 116,986 km (0.051 R)
• M2: 425,456 km (0.1 R)
• M3: 761,752 km (0.118 R)
• M4: 1,270,684 km (0.085 R)
• M5: 4,086,266 km (0.086 R)
• M6: 5,067,777 km (0.097 R)
• M7: 5,901,636 km (0.06 R)
• M8: 6,717,094 km (0.106 R)
• M9: 7,452,517 km (0.065 R)
• M10: 8,571,060 km (0.036 R)
• M11: 9,752,285 km (0.114 R)
• M12: 12,009,119 km (0.046 R)
• M13: 12,488,430 km (0.075 R)
• M14: 13,147,110 km (0.095 R)
• M15: 15,510,906 km (0.11 R)
• M16: 18,563,749 km (0.072 R)
• M17: 22,392,707 km (0.11 R)
• M18: 23,200,685 km (0.119 R)
• M19: 27,078,860 km (0.09 R)
• M20: 30,378,690 km (0.117 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 619.9

Radius: 5

Gravity: 24.8 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 15.75 AU - 16.85 AU

Year: 24661 Days

Day: 15.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 84,628,578 km

• M1: 62,233 km (0.068 R)
• M2: 235,467 km (0.103 R)
• M3: 395,686 km (0.088 R)
• M4: 856,597 km (0.084 R)
• M5: 1,038,359 km (0.034 R)
• M6: 1,636,002 km (0.075 R)
• M7: 1,859,502 km (0.116 R)
• M8: 3,942,353 km (0.106 R)
• M9: 4,593,403 km (0.06 R)
• M10: 5,515,075 km (0.099 R)
• M11: 6,646,035 km (0.073 R)
• M12: 7,023,022 km (0.086 R)
• M13: 7,414,220 km (0.089 R)
• M14: 8,564,927 km (0.08 R)
• M15: 10,760,276 km (0.11 R)
• M16: 11,479,093 km (0.06 R)
• M17: 12,229,476 km (0.1 R)
• M18: 13,526,789 km (0.114 R)
• M19: 18,419,986 km (0.04 R)
• M20: 28,944,346 km (0.111 R)
• M21: 30,714,687 km (0.112 R)
• M22: 34,749,042 km (0.119 R)
• M23: 36,746,922 km (0.091 R)
• M24: 37,184,795 km (0.077 R)
• M25: 55,557,657 km (0.082 R)
• M26: 56,909,573 km (0.06 R)
• M27: 57,888,542 km (0.098 R)
• M28: 69,408,774 km (0.062 R)
• M29: 73,718,091 km (0.077 R)
• M30: 74,881,065 km (0.09 R)
• M31: 75,584,773 km (0.063 R)
• M32: 79,411,935 km (0.057 R)
• M33: 81,620,598 km (0.118 R)
• M34: 83,366,405 km (0.035 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 18,132 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit