🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.2

Radius: 11.5

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.57 AU - 0.83 AU

Year: 378 Days

Day: 7.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,796,522 km

• M1: 143,016 km (0.113 R)
• M2: 664,663 km (0.106 R)
• M3: 1,144,424 km (0.083 R)
• M4: 1,568,982 km (0.073 R)
• M5: 1,954,047 km (0.081 R)
• M6: 2,312,933 km (0.104 R)
• M7: 3,058,080 km (0.089 R)
• M8: 3,487,426 km (0.056 R)
• M9: 4,581,584 km (0.089 R)
• M10: 5,334,062 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761

Radius: 12.3

Gravity: 5.03 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.66 AU - 0.8 AU

Year: 403 Days

Day: 8 Hours

Environment

Temp: -145 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,796,522 km

• M1: 153,039 km (0.083 R)
• M2: 576,700 km (0.072 R)
• M3: 1,077,404 km (0.062 R)
• M4: 1,461,272 km (0.096 R)
• M5: 1,954,646 km (0.114 R)
• M6: 2,389,826 km (0.105 R)
• M7: 3,906,000 km (0.068 R)
• M8: 4,590,111 km (0.049 R)
• M9: 5,304,591 km (0.047 R)
• M10: 5,714,190 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.7

Radius: 10.7

Gravity: 3.35 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.88 AU - 1.32 AU

Year: 745 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,796,522 km

• M1: 133,292 km (0.095 R)
• M2: 671,096 km (0.109 R)
• M3: 1,262,307 km (0.084 R)
• M4: 2,141,942 km (0.116 R)
• M5: 3,109,841 km (0.072 R)
• M6: 3,478,001 km (0.098 R)
• M7: 4,332,504 km (0.056 R)
• M8: 5,270,183 km (0.106 R)
• M9: 6,571,984 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 245.1

Radius: 8.6

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.08 AU - 1.64 AU

Year: 1024 Days

Day: 13.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,796,522 km

• M1: 112,198 km (0.112 R)
• M2: 441,015 km (0.087 R)
• M3: 711,188 km (0.094 R)
• M4: 1,041,201 km (0.092 R)
• M5: 1,599,500 km (0.048 R)
• M6: 2,324,901 km (0.109 R)
• M7: 4,381,123 km (0.074 R)
• M8: 4,727,891 km (0.026 R)
• M9: 5,767,896 km (0.084 R)
• M10: 6,401,442 km (0.115 R)
• M11: 6,704,229 km (0.068 R)
• M12: 6,995,645 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.1

Radius: 14.7

Gravity: 3.52 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 4.68 AU - 7.06 AU

Year: 9183 Days

Day: 8.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 68,796,522 km

• M1: 183,108 km (0.078 R)
• M2: 789,129 km (0.117 R)
• M3: 2,726,272 km (0.102 R)
• M4: 3,263,478 km (0.093 R)
• M5: 3,949,384 km (0.053 R)
• M6: 5,253,428 km (0.088 R)
• M7: 6,789,948 km (0.101 R)
• M8: 9,440,673 km (0.098 R)
• M9: 10,839,563 km (0.054 R)
• M10: 12,545,427 km (0.118 R)
• M11: 15,397,660 km (0.033 R)
• M12: 16,070,850 km (0.047 R)
• M13: 22,783,008 km (0.106 R)
• M14: 23,657,706 km (0.116 R)
• M15: 24,554,695 km (0.119 R)
• M16: 25,754,620 km (0.05 R)
• M17: 30,630,912 km (0.043 R)
• M18: 32,457,352 km (0.074 R)
• M19: 35,158,043 km (0.116 R)
• M20: 40,620,011 km (0.095 R)
• M21: 41,647,000 km (0.08 R)
• M22: 45,240,939 km (0.06 R)
• M23: 46,762,798 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.39 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 994

Radius: 7.1

Gravity: 19.72 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 5.88 AU - 6.9 AU

Year: 10430 Days

Day: 19.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 68,796,522 km

• M1: 94,845 km (0.113 R)
• M2: 413,339 km (0.094 R)
• M3: 1,247,197 km (0.045 R)
• M4: 2,183,231 km (0.087 R)
• M5: 2,436,650 km (0.076 R)
• M6: 3,762,536 km (0.098 R)
• M7: 4,706,648 km (0.117 R)
• M8: 5,910,462 km (0.074 R)
• M9: 6,250,648 km (0.025 R)
• M10: 6,684,033 km (0.056 R)
• M11: 7,655,073 km (0.107 R)
• M12: 9,208,048 km (0.078 R)
• M13: 12,986,442 km (0.113 R)
• M14: 16,254,108 km (0.077 R)
• M15: 24,936,918 km (0.098 R)
• M16: 29,373,093 km (0.119 R)
• M17: 30,923,825 km (0.091 R)
• M18: 38,190,541 km (0.076 R)
• M19: 54,483,096 km (0.044 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 248.2

Radius: 4.1

Gravity: 14.77 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 6.15 AU - 6.99 AU

Year: 10873 Days

Day: 22.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,796,522 km

• M1: 52,060 km (0.109 R)
• M2: 335,398 km (0.096 R)
• M3: 608,115 km (0.092 R)
• M4: 1,584,840 km (0.118 R)
• M5: 1,791,135 km (0.075 R)
• M6: 2,078,214 km (0.072 R)
• M7: 2,899,805 km (0.043 R)
• M8: 6,054,226 km (0.054 R)
• M9: 8,160,863 km (0.102 R)
• M10: 9,688,257 km (0.078 R)
• M11: 13,184,958 km (0.08 R)
• M12: 14,495,435 km (0.038 R)
• M13: 15,273,344 km (0.116 R)
• M14: 15,456,751 km (0.068 R)
• M15: 18,181,078 km (0.079 R)
• M16: 18,594,716 km (0.055 R)
• M17: 19,369,184 km (0.119 R)
• M18: 20,832,102 km (0.115 R)
• M19: 20,982,298 km (0.078 R)
• M20: 21,361,080 km (0.087 R)
• M21: 21,513,819 km (0.025 R)
• M22: 26,355,255 km (0.083 R)
• M23: 27,241,922 km (0.038 R)
• M24: 28,794,449 km (0.107 R)
• M25: 29,925,259 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 858.9

Radius: 4.1

Gravity: 51.09 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 6.41 AU - 10.13 AU

Year: 15356 Days

Day: 19.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 68,796,522 km

• M1: 54,454 km (0.085 R)
• M2: 260,599 km (0.114 R)
• M3: 451,935 km (0.115 R)
• M4: 763,248 km (0.109 R)
• M5: 1,025,344 km (0.036 R)
• M6: 1,273,227 km (0.103 R)
• M7: 1,512,135 km (0.087 R)
• M8: 1,659,190 km (0.108 R)
• M9: 2,118,904 km (0.098 R)
• M10: 2,800,921 km (0.106 R)
• M11: 3,393,927 km (0.083 R)
• M12: 6,108,979 km (0.096 R)
• M13: 8,644,214 km (0.083 R)
• M14: 12,916,729 km (0.062 R)
• M15: 14,825,897 km (0.103 R)
• M16: 16,041,828 km (0.063 R)
• M17: 16,915,330 km (0.071 R)
• M18: 19,635,917 km (0.055 R)
• M19: 21,666,858 km (0.045 R)
• M20: 22,438,633 km (0.061 R)
• M21: 23,029,545 km (0.057 R)
• M22: 24,968,932 km (0.077 R)
• M23: 26,684,371 km (0.098 R)
• M24: 28,134,872 km (0.038 R)
• M25: 30,109,713 km (0.11 R)
• M26: 30,347,873 km (0.052 R)
• M27: 34,592,862 km (0.052 R)
• M28: 35,380,794 km (0.093 R)
• M29: 38,093,901 km (0.093 R)
• M30: 42,868,167 km (0.055 R)
• M31: 45,008,614 km (0.104 R)
• M32: 48,677,950 km (0.074 R)
• M33: 49,170,875 km (0.068 R)
• M34: 50,166,449 km (0.065 R)
• M35: 52,026,549 km (0.104 R)
• M36: 53,932,127 km (0.087 R)
• M37: 56,243,563 km (0.067 R)
• M38: 61,827,902 km (0.059 R)
• M39: 62,020,136 km (0.084 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 515 - 15,387 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit