🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.85 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.5

Radius: 10.1

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 3.67 AU - 3.71 AU

Year: 3094 Days

Day: 9.1 Hours

Environment

Temp: -148 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,167,700 km

• M1: 125,961 km (0.067 R)
• M2: 776,413 km (0.077 R)
• M3: 3,627,449 km (0.086 R)
• M4: 5,332,715 km (0.061 R)
• M5: 5,919,737 km (0.115 R)
• M6: 6,993,551 km (0.061 R)
• M7: 7,398,512 km (0.03 R)
• M8: 8,035,500 km (0.042 R)
• M9: 9,280,603 km (0.118 R)
• M10: 11,186,929 km (0.099 R)
• M11: 14,469,256 km (0.1 R)
• M12: 15,176,106 km (0.047 R)
• M13: 16,607,757 km (0.041 R)
• M14: 17,646,266 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.9

Radius: 14.4

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 3.65 AU - 5.51 AU

Year: 4279 Days

Day: 8.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,167,700 km

• M1: 179,069 km (0.106 R)
• M2: 692,040 km (0.053 R)
• M3: 1,149,211 km (0.09 R)
• M4: 2,652,221 km (0.107 R)
• M5: 3,150,082 km (0.111 R)
• M6: 4,050,512 km (0.094 R)
• M7: 6,703,780 km (0.08 R)
• M8: 7,264,921 km (0.085 R)
• M9: 8,308,367 km (0.086 R)
• M10: 8,866,516 km (0.095 R)
• M11: 9,355,851 km (0.07 R)
• M12: 10,692,807 km (0.039 R)
• M13: 11,247,965 km (0.046 R)

Planet 3 - Ice Giant

Semi-Major Axis: 12.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 830.8

Radius: 7.6

Gravity: 14.38 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 12.14 AU - 12.14 AU

Year: 18466 Days

Day: 22.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,167,700 km

• M1: 94,546 km (0.04 R)
• M2: 1,540,858 km (0.055 R)
• M3: 2,047,247 km (0.107 R)
• M4: 7,050,398 km (0.093 R)
• M5: 13,019,503 km (0.045 R)
• M6: 15,400,203 km (0.056 R)
• M7: 17,969,247 km (0.071 R)
• M8: 18,232,091 km (0.079 R)
• M9: 20,523,481 km (0.093 R)
• M10: 27,250,898 km (0.099 R)
• M11: 29,257,304 km (0.111 R)
• M12: 35,040,160 km (0.118 R)
• M13: 36,281,523 km (0.062 R)
• M14: 40,330,988 km (0.094 R)
• M15: 54,450,483 km (0.034 R)
• M16: 64,533,679 km (0.109 R)
• M17: 72,863,887 km (0.079 R)
• M18: 73,309,389 km (0.12 R)

Planet 4 - Ice Giant

Semi-Major Axis: 13.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 94.8

Radius: 7.3

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 12.72 AU - 14.82 AU

Year: 22307 Days

Day: 22.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,167,700 km

• M1: 90,806 km (0.099 R)
• M2: 341,233 km (0.066 R)
• M3: 584,778 km (0.11 R)
• M4: 1,917,246 km (0.071 R)
• M5: 5,530,484 km (0.059 R)
• M6: 5,995,583 km (0.109 R)
• M7: 7,041,721 km (0.116 R)
• M8: 8,765,538 km (0.096 R)
• M9: 10,753,095 km (0.06 R)
• M10: 11,008,159 km (0.119 R)
• M11: 11,797,737 km (0.11 R)
• M12: 19,000,575 km (0.104 R)
• M13: 24,416,766 km (0.061 R)
• M14: 25,035,952 km (0.117 R)
• M15: 25,756,415 km (0.068 R)
• M16: 35,397,250 km (0.09 R)
• M17: 40,702,738 km (0.035 R)

Planet 5 - Ice Giant

Semi-Major Axis: 14.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 146.5

Radius: 5.5

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 12.28 AU - 16.54 AU

Year: 23880 Days

Day: 18.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 74,167,700 km

• M1: 70,012 km (0.07 R)
• M2: 319,691 km (0.082 R)
• M3: 1,075,010 km (0.093 R)
• M4: 1,252,284 km (0.106 R)
• M5: 1,923,081 km (0.097 R)
• M6: 2,494,544 km (0.094 R)
• M7: 4,022,238 km (0.091 R)
• M8: 5,515,075 km (0.067 R)
• M9: 12,139,867 km (0.088 R)
• M10: 14,839,062 km (0.079 R)
• M11: 15,108,787 km (0.054 R)
• M12: 19,964,285 km (0.078 R)
• M13: 29,311,758 km (0.066 R)
• M14: 39,247,749 km (0.104 R)
• M15: 40,941,496 km (0.097 R)
• M16: 46,314,304 km (0.069 R)
• M17: 51,212,288 km (0.058 R)

Planet 6 - Ice Giant

Semi-Major Axis: 14.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 440.4

Radius: 6.2

Gravity: 11.46 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 13.79 AU - 15.13 AU

Year: 24005 Days

Day: 23.8 Hours

Environment

Temp: -211 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 74,167,700 km

• M1: 77,043 km (0.1 R)
• M2: 337,343 km (0.087 R)
• M3: 626,516 km (0.102 R)
• M4: 876,793 km (0.067 R)
• M5: 2,199,986 km (0.036 R)
• M6: 2,414,958 km (0.05 R)
• M7: 2,989,115 km (0.057 R)
• M8: 4,818,847 km (0.069 R)
• M9: 5,410,955 km (0.09 R)
• M10: 5,605,582 km (0.116 R)
• M11: 6,388,427 km (0.091 R)
• M12: 6,694,505 km (0.105 R)
• M13: 8,847,218 km (0.118 R)
• M14: 10,021,412 km (0.094 R)
• M15: 10,375,061 km (0.06 R)
• M16: 10,676,202 km (0.082 R)
• M17: 11,550,302 km (0.092 R)
• M18: 16,160,759 km (0.079 R)
• M19: 17,395,390 km (0.072 R)
• M20: 20,330,500 km (0.114 R)
• M21: 34,431,745 km (0.119 R)
• M22: 42,288,176 km (0.078 R)
• M23: 45,097,924 km (0.046 R)
• M24: 50,740,157 km (0.087 R)
• M25: 52,484,917 km (0.03 R)
• M26: 52,838,716 km (0.107 R)
• M27: 56,093,966 km (0.115 R)
• M28: 59,480,413 km (0.051 R)
• M29: 65,015,085 km (0.08 R)
• M30: 68,960,130 km (0.093 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: 389 - 10,832 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit