🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.01

Radius: 1.74

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.5 AU - 0.62 AU

Year: 275 Days

Day: 14.5 Hours

Environment

Temp: -121 °C

Axial Tilt: 32.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.47 AU - 0.65 AU

Year: 275 Days

Day: 16 Hours

Environment

Temp: -125 °C

Axial Tilt: 8.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60

Radius: 11.2

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.64 AU - 1.02 AU

Year: 496 Days

Day: 5.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 52,732,865 km

• M1: 140,772 km (0.105 R)
• M2: 632,500 km (0.113 R)
• M3: 1,185,713 km (0.036 R)
• M4: 1,581,848 km (0.107 R)
• M5: 2,159,445 km (0.095 R)
• M6: 2,833,084 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 878.5

Radius: 11.1

Gravity: 7.13 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.18 AU - 1.32 AU

Year: 917 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 52,732,865 km

• M1: 139,126 km (0.072 R)
• M2: 490,232 km (0.119 R)
• M3: 1,028,186 km (0.116 R)
• M4: 1,460,075 km (0.109 R)
• M5: 1,839,007 km (0.09 R)
• M6: 2,384,141 km (0.096 R)
• M7: 2,942,291 km (0.097 R)
• M8: 3,395,124 km (0.109 R)
• M9: 4,511,573 km (0.051 R)
• M10: 5,078,249 km (0.104 R)
• M11: 5,942,327 km (0.077 R)
• M12: 6,420,890 km (0.107 R)
• M13: 7,115,024 km (0.107 R)
• M14: 7,530,158 km (0.098 R)
• M15: 8,065,270 km (0.062 R)
• M16: 8,901,373 km (0.114 R)
• M17: 9,943,770 km (0.081 R)
• M18: 10,308,789 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 596.6

Radius: 8.4

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 3.89 AU - 5.07 AU

Year: 6221 Days

Day: 8.8 Hours

Environment

Temp: -205 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,732,865 km

• M1: 104,569 km (0.108 R)
• M2: 818,899 km (0.096 R)
• M3: 1,153,699 km (0.098 R)
• M4: 1,900,491 km (0.112 R)
• M5: 2,515,638 km (0.107 R)
• M6: 2,860,461 km (0.063 R)
• M7: 4,412,389 km (0.089 R)
• M8: 4,888,709 km (0.064 R)
• M9: 5,196,432 km (0.06 R)
• M10: 5,457,630 km (0.087 R)
• M11: 5,727,803 km (0.107 R)
• M12: 6,425,977 km (0.101 R)
• M13: 7,251,009 km (0.096 R)
• M14: 8,222,647 km (0.083 R)
• M15: 9,194,285 km (0.053 R)
• M16: 10,745,615 km (0.025 R)
• M17: 12,005,828 km (0.114 R)
• M18: 13,524,545 km (0.113 R)
• M19: 14,020,761 km (0.109 R)
• M20: 15,763,277 km (0.045 R)
• M21: 19,954,262 km (0.089 R)
• M22: 23,388,580 km (0.077 R)
• M23: 28,704,091 km (0.096 R)
• M24: 32,564,913 km (0.082 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.7

Radius: 5.7

Gravity: 8.98 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 7.25 AU - 10.73 AU

Year: 17683 Days

Day: 24.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 52,732,865 km

• M1: 71,358 km (0.107 R)
• M2: 259,552 km (0.08 R)
• M3: 531,222 km (0.034 R)
• M4: 845,378 km (0.11 R)
• M5: 1,028,934 km (0.109 R)
• M6: 1,328,878 km (0.108 R)
• M7: 1,594,564 km (0.046 R)
• M8: 1,946,268 km (0.115 R)
• M9: 2,983,430 km (0.1 R)
• M10: 4,257,855 km (0.117 R)
• M11: 4,901,724 km (0.099 R)
• M12: 6,041,660 km (0.094 R)
• M13: 6,614,171 km (0.101 R)
• M14: 7,390,434 km (0.082 R)
• M15: 8,455,720 km (0.074 R)
• M16: 8,737,264 km (0.086 R)
• M17: 9,368,866 km (0.104 R)
• M18: 10,030,238 km (0.095 R)
• M19: 12,440,409 km (0.12 R)
• M20: 13,176,281 km (0.092 R)
• M21: 15,418,454 km (0.071 R)
• M22: 17,446,104 km (0.077 R)
• M23: 18,681,333 km (0.045 R)
• M24: 20,895,831 km (0.075 R)
• M25: 22,825,194 km (0.112 R)
• M26: 24,870,048 km (0.1 R)
• M27: 25,936,830 km (0.096 R)
• M28: 31,395,507 km (0.083 R)
• M29: 33,101,670 km (0.071 R)
• M30: 34,036,358 km (0.072 R)
• M31: 36,081,062 km (0.099 R)
• M32: 38,975,631 km (0.082 R)
• M33: 42,429,846 km (0.119 R)
• M34: 42,978,870 km (0.1 R)
• M35: 45,364,657 km (0.079 R)
• M36: 46,227,388 km (0.056 R)
• M37: 46,808,575 km (0.027 R)
• M38: 48,432,011 km (0.113 R)
• M39: 51,634,752 km (0.08 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 511 - 19,221 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit