🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.44 AU - 0.74 AU

Year: 288 Days

Day: 27.3 Hours

Environment

Temp: -117 °C

Axial Tilt: 13 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 375.5

Radius: 13.1

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.87 AU - 0.89 AU

Year: 525 Days

Day: 8.5 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 81,315,658 km

• M1: 162,912 km (0.085 R)
• M2: 584,180 km (0.094 R)
• M3: 1,022,053 km (0.104 R)
• M4: 1,542,204 km (0.062 R)
• M5: 2,129,974 km (0.114 R)
• M6: 2,685,581 km (0.09 R)
• M7: 3,094,432 km (0.055 R)
• M8: 3,664,849 km (0.117 R)
• M9: 4,913,841 km (0.042 R)
• M10: 5,388,067 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671.9

Radius: 13

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.77 AU - 2.03 AU

Year: 1665 Days

Day: 5.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,315,658 km

• M1: 161,865 km (0.049 R)
• M2: 678,576 km (0.045 R)
• M3: 1,101,489 km (0.088 R)
• M4: 1,641,537 km (0.085 R)
• M5: 3,624,756 km (0.101 R)
• M6: 5,071,517 km (0.117 R)
• M7: 5,570,875 km (0.105 R)
• M8: 6,951,663 km (0.102 R)
• M9: 7,486,775 km (0.107 R)
• M10: 8,459,760 km (0.104 R)
• M11: 9,195,931 km (0.062 R)
• M12: 9,775,922 km (0.068 R)
• M13: 10,209,755 km (0.092 R)
• M14: 13,010,078 km (0.12 R)
• M15: 13,783,200 km (0.096 R)

Planet 4 - Ice Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 983.4

Radius: 6.7

Gravity: 21.91 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 9.18 AU - 9.7 AU

Year: 18441 Days

Day: 18.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,315,658 km

• M1: 95,443 km (0.086 R)
• M2: 341,382 km (0.115 R)
• M3: 704,307 km (0.063 R)
• M4: 1,192,295 km (0.119 R)
• M5: 1,847,534 km (0.069 R)
• M6: 2,085,095 km (0.091 R)
• M7: 2,795,386 km (0.078 R)
• M8: 4,298,844 km (0.094 R)
• M9: 4,791,620 km (0.114 R)
• M10: 5,014,072 km (0.084 R)
• M11: 10,176,545 km (0.105 R)
• M12: 10,732,600 km (0.117 R)
• M13: 10,986,168 km (0.107 R)
• M14: 11,308,701 km (0.092 R)
• M15: 11,837,829 km (0.118 R)
• M16: 12,176,967 km (0.052 R)
• M17: 13,378,388 km (0.053 R)
• M18: 14,425,573 km (0.066 R)
• M19: 14,969,212 km (0.106 R)
• M20: 17,367,565 km (0.093 R)
• M21: 17,629,511 km (0.088 R)
• M22: 25,177,322 km (0.108 R)
• M23: 25,400,671 km (0.048 R)
• M24: 34,628,167 km (0.075 R)
• M25: 41,208,080 km (0.115 R)
• M26: 44,382,397 km (0.06 R)
• M27: 45,696,614 km (0.086 R)
• M28: 48,402,241 km (0.106 R)
• M29: 53,944,843 km (0.101 R)
• M30: 58,711,480 km (0.092 R)
• M31: 61,096,070 km (0.106 R)
• M32: 61,499,685 km (0.117 R)
• M33: 63,337,943 km (0.101 R)
• M34: 65,002,519 km (0.11 R)
• M35: 70,391,782 km (0.075 R)
• M36: 70,613,337 km (0.111 R)
• M37: 75,374,289 km (0.119 R)
• M38: 77,007,598 km (0.086 R)
• M39: 77,478,532 km (0.111 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 401 - 14,371 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit