🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.27

Radius: 0.59

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.68 AU - 1.1 AU

Year: 383 Days

Day: 25 Hours

Environment

Temp: -56 °C

Axial Tilt: 29.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 5.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.7

Radius: 13.8

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 4.77 AU - 6.13 AU

Year: 5809 Days

Day: 7.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 41,019,522 km

• M1: 171,589 km (0.11 R)
• M2: 681,119 km (0.11 R)
• M3: 1,110,465 km (0.119 R)
• M4: 1,813,425 km (0.096 R)
• M5: 2,419,895 km (0.103 R)
• M6: 3,505,228 km (0.088 R)
• M7: 3,973,020 km (0.063 R)
• M8: 5,151,851 km (0.067 R)
• M9: 6,081,453 km (0.117 R)
• M10: 7,120,111 km (0.111 R)
• M11: 8,601,728 km (0.072 R)
• M12: 9,327,726 km (0.068 R)
• M13: 10,047,891 km (0.064 R)
• M14: 12,011,213 km (0.073 R)
• M15: 13,757,170 km (0.079 R)
• M16: 14,931,214 km (0.11 R)
• M17: 15,917,513 km (0.039 R)
• M18: 17,478,118 km (0.113 R)
• M19: 19,209,863 km (0.093 R)
• M20: 19,933,617 km (0.115 R)
• M21: 20,977,361 km (0.091 R)
• M22: 21,435,729 km (0.092 R)
• M23: 23,174,057 km (0.101 R)
• M24: 24,077,628 km (0.09 R)
• M25: 27,019,470 km (0.075 R)
• M26: 30,387,367 km (0.088 R)
• M27: 37,271,861 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 881.9

Radius: 10.1

Gravity: 8.65 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 5.36 AU - 6.08 AU

Year: 6246 Days

Day: 5.3 Hours

Environment

Temp: -179 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 41,019,522 km

• M1: 125,662 km (0.117 R)
• M2: 467,344 km (0.071 R)
• M3: 800,797 km (0.079 R)
• M4: 1,256,921 km (0.11 R)
• M5: 1,927,120 km (0.092 R)
• M6: 2,259,077 km (0.076 R)
• M7: 4,018,199 km (0.113 R)
• M8: 6,582,606 km (0.116 R)
• M9: 6,902,446 km (0.085 R)
• M10: 8,205,892 km (0.042 R)
• M11: 9,941,377 km (0.112 R)
• M12: 10,651,219 km (0.056 R)
• M13: 11,804,918 km (0.099 R)
• M14: 12,331,652 km (0.086 R)
• M15: 12,874,094 km (0.081 R)
• M16: 14,657,300 km (0.077 R)
• M17: 15,327,798 km (0.082 R)
• M18: 21,683,015 km (0.075 R)
• M19: 26,270,583 km (0.109 R)
• M20: 27,168,918 km (0.099 R)
• M21: 28,648,740 km (0.037 R)
• M22: 29,121,918 km (0.049 R)
• M23: 29,696,823 km (0.105 R)
• M24: 30,084,132 km (0.113 R)
• M25: 31,366,485 km (0.113 R)
• M26: 33,829,165 km (0.073 R)
• M27: 35,540,714 km (0.073 R)
• M28: 36,417,806 km (0.068 R)

Planet 4 - Ice Giant

Semi-Major Axis: 12.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 118

Radius: 4.8

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 10.94 AU - 13.14 AU

Year: 19074 Days

Day: 23.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,019,522 km

• M1: 70,461 km (0.112 R)
• M2: 455,526 km (0.058 R)
• M3: 640,129 km (0.097 R)
• M4: 3,137,815 km (0.06 R)
• M5: 3,693,571 km (0.107 R)
• M6: 5,397,790 km (0.085 R)
• M7: 5,557,262 km (0.115 R)
• M8: 7,330,296 km (0.114 R)
• M9: 9,540,903 km (0.082 R)
• M10: 10,399,446 km (0.088 R)
• M11: 13,398,733 km (0.116 R)
• M12: 16,190,978 km (0.072 R)
• M13: 18,253,783 km (0.047 R)
• M14: 19,797,782 km (0.084 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: 315 - 17,000 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit