🌌 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: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.28

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.54 AU - 0.66 AU

Year: 305 Days

Day: 41.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 106.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.17

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.63 AU - 0.65 AU

Year: 336 Days

Day: 43.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 54,957,518 km

• M1: 34,856 km (0.056 R)
• M2: 66,421 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 984.3

Radius: 14.6

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.23 AU - 1.85 AU

Year: 1254 Days

Day: 14.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 54,957,518 km

• M1: 182,061 km (0.115 R)
• M2: 666,309 km (0.065 R)
• M3: 1,351,617 km (0.047 R)
• M4: 1,812,677 km (0.094 R)
• M5: 2,670,172 km (0.069 R)
• M6: 4,592,056 km (0.06 R)
• M7: 5,642,383 km (0.072 R)
• M8: 6,284,158 km (0.07 R)
• M9: 7,338,374 km (0.081 R)
• M10: 8,507,332 km (0.069 R)
• M11: 9,797,015 km (0.111 R)
• M12: 10,624,590 km (0.11 R)
• M13: 12,457,314 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.7

Radius: 14.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.33 AU - 1.97 AU

Year: 1390 Days

Day: 7.1 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 54,957,518 km

• M1: 189,241 km (0.061 R)
• M2: 654,790 km (0.043 R)
• M3: 1,235,678 km (0.042 R)
• M4: 1,974,991 km (0.103 R)
• M5: 3,498,047 km (0.09 R)
• M6: 3,972,871 km (0.053 R)
• M7: 4,649,801 km (0.044 R)
• M8: 5,664,673 km (0.108 R)
• M9: 6,776,484 km (0.065 R)
• M10: 8,752,523 km (0.082 R)
• M11: 9,460,569 km (0.054 R)

Planet 5 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.2

Radius: 5.5

Gravity: 10.92 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.42 AU - 10.16 AU

Year: 15658 Days

Day: 23.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 54,957,518 km

• M1: 68,366 km (0.093 R)
• M2: 246,088 km (0.12 R)
• M3: 437,873 km (0.111 R)
• M4: 660,325 km (0.095 R)
• M5: 897,737 km (0.114 R)
• M6: 1,203,365 km (0.076 R)
• M7: 1,870,721 km (0.096 R)
• M8: 2,219,733 km (0.099 R)
• M9: 2,410,022 km (0.053 R)
• M10: 3,117,021 km (0.038 R)
• M11: 3,582,121 km (0.087 R)
• M12: 3,953,573 km (0.115 R)
• M13: 4,148,648 km (0.106 R)
• M14: 6,861,157 km (0.099 R)
• M15: 9,148,209 km (0.114 R)
• M16: 9,589,822 km (0.095 R)
• M17: 11,956,011 km (0.089 R)
• M18: 12,188,636 km (0.077 R)
• M19: 12,483,793 km (0.113 R)
• M20: 16,122,611 km (0.057 R)
• M21: 16,912,039 km (0.093 R)
• M22: 18,029,685 km (0.062 R)
• M23: 18,258,869 km (0.098 R)
• M24: 20,576,738 km (0.095 R)
• M25: 21,935,985 km (0.066 R)
• M26: 22,637,599 km (0.114 R)
• M27: 25,497,910 km (0.072 R)
• M28: 25,980,662 km (0.1 R)
• M29: 29,426,948 km (0.112 R)
• M30: 30,821,350 km (0.111 R)
• M31: 33,856,990 km (0.064 R)
• M32: 34,206,152 km (0.071 R)
• M33: 37,457,212 km (0.095 R)
• M34: 44,148,875 km (0.119 R)
• M35: 48,287,799 km (0.106 R)
• M36: 49,175,214 km (0.105 R)
• M37: 50,678,373 km (0.055 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 382.5

Radius: 4.8

Gravity: 16.6 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 8.42 AU - 8.7 AU

Year: 16429 Days

Day: 24.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 6.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 54,957,518 km

• M1: 59,989 km (0.103 R)
• M2: 227,090 km (0.109 R)
• M3: 525,687 km (0.039 R)
• M4: 676,781 km (0.064 R)
• M5: 948,750 km (0.111 R)
• M6: 1,343,987 km (0.045 R)
• M7: 2,160,792 km (0.063 R)
• M8: 2,333,727 km (0.089 R)
• M9: 3,417,414 km (0.075 R)
• M10: 3,983,492 km (0.047 R)
• M11: 6,799,074 km (0.072 R)
• M12: 7,171,872 km (0.069 R)
• M13: 9,343,584 km (0.103 R)
• M14: 9,649,063 km (0.109 R)
• M15: 9,856,405 km (0.117 R)
• M16: 12,520,444 km (0.042 R)
• M17: 14,249,347 km (0.064 R)
• M18: 15,345,750 km (0.109 R)
• M19: 15,986,477 km (0.065 R)
• M20: 16,203,993 km (0.056 R)
• M21: 16,497,055 km (0.086 R)
• M22: 17,245,343 km (0.09 R)
• M23: 17,937,682 km (0.05 R)
• M24: 18,172,701 km (0.047 R)
• M25: 20,550,259 km (0.094 R)
• M26: 23,498,684 km (0.035 R)
• M27: 24,158,560 km (0.075 R)
• M28: 24,637,273 km (0.077 R)
• M29: 27,747,862 km (0.06 R)
• M30: 28,167,334 km (0.05 R)
• M31: 34,252,078 km (0.075 R)
• M32: 34,856,154 km (0.056 R)
• M33: 35,713,799 km (0.063 R)
• M34: 43,649,816 km (0.073 R)
• M35: 44,074,824 km (0.112 R)
• M36: 45,511,562 km (0.119 R)
• M37: 46,979,267 km (0.106 R)
• M38: 48,933,912 km (0.113 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 11,869 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit