🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.3

Radius: 13.9

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.77 AU - 0.91 AU

Year: 531 Days

Day: 11.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,787,713 km

• M1: 172,935 km (0.064 R)
• M2: 1,013,675 km (0.084 R)
• M3: 1,466,059 km (0.047 R)
• M4: 2,221,828 km (0.111 R)
• M5: 3,081,267 km (0.07 R)
• M6: 3,542,926 km (0.041 R)
• M7: 3,979,603 km (0.056 R)
• M8: 5,029,480 km (0.109 R)
• M9: 5,512,532 km (0.11 R)
• M10: 5,988,852 km (0.025 R)
• M11: 6,492,548 km (0.073 R)
• M12: 7,109,040 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.6

Radius: 11.1

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.14 AU - 1.46 AU

Year: 1023 Days

Day: 10.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 66,787,713 km

• M1: 138,079 km (0.098 R)
• M2: 685,457 km (0.11 R)
• M3: 1,072,916 km (0.04 R)
• M4: 1,433,148 km (0.113 R)
• M5: 1,913,656 km (0.075 R)
• M6: 2,628,883 km (0.08 R)
• M7: 3,108,943 km (0.108 R)
• M8: 3,514,054 km (0.117 R)
• M9: 3,876,081 km (0.083 R)
• M10: 4,229,730 km (0.077 R)
• M11: 5,153,048 km (0.057 R)
• M12: 6,056,171 km (0.108 R)
• M13: 7,203,885 km (0.119 R)
• M14: 8,464,397 km (0.119 R)
• M15: 9,063,387 km (0.091 R)
• M16: 9,430,500 km (0.097 R)
• M17: 10,014,829 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.5

Radius: 10.1

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.01 AU - 2.15 AU

Year: 2071 Days

Day: 5.9 Hours

Environment

Temp: -206 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,787,713 km

• M1: 125,662 km (0.117 R)
• M2: 491,429 km (0.083 R)
• M3: 1,028,785 km (0.105 R)
• M4: 1,586,934 km (0.062 R)
• M5: 1,901,239 km (0.117 R)
• M6: 2,619,309 km (0.113 R)
• M7: 3,545,021 km (0.114 R)
• M8: 4,488,535 km (0.073 R)
• M9: 4,807,926 km (0.065 R)
• M10: 5,460,472 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.2

Radius: 12.3

Gravity: 0.37 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.81 AU - 2.57 AU

Year: 2237 Days

Day: 6 Hours

Environment

Temp: -209 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,787,713 km

• M1: 153,039 km (0.098 R)
• M2: 824,883 km (0.073 R)
• M3: 1,260,212 km (0.117 R)
• M4: 3,250,911 km (0.104 R)
• M5: 3,847,807 km (0.101 R)
• M6: 4,579,789 km (0.118 R)
• M7: 5,384,925 km (0.054 R)
• M8: 6,481,029 km (0.119 R)
• M9: 6,933,861 km (0.053 R)
• M10: 7,474,059 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.1

Radius: 9.2

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.3 AU - 3.12 AU

Year: 3079 Days

Day: 6.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 66,787,713 km

• M1: 115,789 km (0.106 R)
• M2: 590,762 km (0.111 R)
• M3: 1,004,699 km (0.108 R)
• M4: 1,297,762 km (0.081 R)
• M5: 2,883,349 km (0.114 R)
• M6: 4,078,786 km (0.075 R)
• M7: 4,397,878 km (0.085 R)
• M8: 6,278,323 km (0.057 R)
• M9: 7,294,542 km (0.119 R)
• M10: 12,102,468 km (0.114 R)
• M11: 13,625,673 km (0.113 R)
• M12: 15,177,901 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.4

Radius: 14.4

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.63 AU - 2.83 AU

Year: 3114 Days

Day: 10 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,787,713 km

• M1: 179,069 km (0.101 R)
• M2: 666,608 km (0.115 R)
• M3: 1,165,966 km (0.092 R)
• M4: 2,204,923 km (0.116 R)
• M5: 2,663,141 km (0.117 R)
• M6: 3,776,897 km (0.066 R)
• M7: 4,596,245 km (0.118 R)
• M8: 5,429,954 km (0.1 R)
• M9: 5,923,477 km (0.071 R)
• M10: 9,000,855 km (0.046 R)
• M11: 11,566,608 km (0.096 R)
• M12: 13,387,214 km (0.065 R)
• M13: 14,244,260 km (0.106 R)
• M14: 15,392,275 km (0.091 R)
• M15: 16,655,030 km (0.043 R)
• M16: 18,677,294 km (0.096 R)
• M17: 19,506,216 km (0.041 R)
• M18: 21,110,952 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 838.2

Radius: 4.9

Gravity: 34.91 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 7.08 AU - 8.74 AU

Year: 15356 Days

Day: 18.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 121.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 66,787,713 km

• M1: 61,036 km (0.093 R)
• M2: 319,840 km (0.03 R)
• M3: 639,680 km (0.05 R)
• M4: 912,248 km (0.086 R)
• M5: 1,218,175 km (0.109 R)
• M6: 2,294,981 km (0.109 R)
• M7: 2,511,000 km (0.108 R)
• M8: 2,812,141 km (0.052 R)
• M9: 3,137,067 km (0.079 R)
• M10: 3,376,274 km (0.094 R)
• M11: 4,829,019 km (0.116 R)
• M12: 5,988,253 km (0.103 R)
• M13: 6,356,862 km (0.071 R)
• M14: 6,960,191 km (0.026 R)
• M15: 8,033,106 km (0.116 R)
• M16: 8,430,738 km (0.111 R)
• M17: 8,634,490 km (0.116 R)
• M18: 11,097,619 km (0.051 R)
• M19: 13,432,393 km (0.075 R)
• M20: 15,083,953 km (0.059 R)
• M21: 16,231,369 km (0.118 R)
• M22: 17,766,542 km (0.111 R)
• M23: 18,017,418 km (0.083 R)
• M24: 20,474,862 km (0.076 R)
• M25: 24,669,586 km (0.097 R)
• M26: 24,877,528 km (0.101 R)
• M27: 25,297,000 km (0.061 R)
• M28: 26,150,007 km (0.063 R)
• M29: 36,293,939 km (0.098 R)
• M30: 40,039,272 km (0.077 R)
• M31: 42,824,036 km (0.061 R)
• M32: 43,426,317 km (0.101 R)
• M33: 51,948,160 km (0.078 R)
• M34: 54,900,923 km (0.079 R)
• M35: 59,817,307 km (0.107 R)
• M36: 68,239,667 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 351.8

Radius: 7.5

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.63 AU - 12.05 AU

Year: 22950 Days

Day: 17.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,787,713 km

• M1: 162,014 km (0.103 R)
• M2: 522,396 km (0.065 R)
• M3: 1,526,197 km (0.095 R)
• M4: 2,556,029 km (0.086 R)
• M5: 4,172,434 km (0.118 R)
• M6: 4,757,511 km (0.119 R)
• M7: 8,133,487 km (0.062 R)
• M8: 8,480,254 km (0.117 R)
• M9: 8,992,478 km (0.099 R)
• M10: 10,712,404 km (0.1 R)
• M11: 12,575,047 km (0.119 R)
• M12: 21,530,126 km (0.115 R)
• M13: 22,579,555 km (0.056 R)
• M14: 25,825,828 km (0.097 R)
• M15: 28,569,005 km (0.056 R)
• M16: 36,464,331 km (0.094 R)
• M17: 39,764,610 km (0.109 R)
• M18: 40,048,397 km (0.082 R)
• M19: 48,229,007 km (0.096 R)
• M20: 48,713,555 km (0.078 R)
• M21: 53,566,510 km (0.053 R)
• M22: 58,732,274 km (0.107 R)
• M23: 63,831,317 km (0.063 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 480 - 10,975 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit