🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.6

Radius: 10

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.59 AU - 0.91 AU

Year: 413 Days

Day: 14.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,429,001 km

• M1: 125,662 km (0.046 R)
• M2: 473,328 km (0.057 R)
• M3: 878,588 km (0.114 R)
• M4: 1,299,706 km (0.079 R)
• M5: 1,884,933 km (0.109 R)
• M6: 2,214,647 km (0.049 R)
• M7: 2,567,698 km (0.11 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.3

Radius: 13.9

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.63 AU - 0.89 AU

Year: 421 Days

Day: 5.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 72,429,001 km

• M1: 172,935 km (0.092 R)
• M2: 718,967 km (0.046 R)
• M3: 1,254,827 km (0.109 R)
• M4: 1,893,161 km (0.062 R)
• M5: 2,872,279 km (0.117 R)
• M6: 3,492,362 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.1

Radius: 15

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.02 AU - 1.3 AU

Year: 794 Days

Day: 11.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 129.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 72,429,001 km

• M1: 187,147 km (0.12 R)
• M2: 714,031 km (0.113 R)
• M3: 1,323,044 km (0.103 R)
• M4: 1,853,518 km (0.077 R)
• M5: 2,621,703 km (0.115 R)
• M6: 3,743,088 km (0.107 R)
• M7: 5,748,298 km (0.104 R)
• M8: 6,375,562 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.5

Radius: 8.6

Gravity: 6.52 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 2.86 AU - 3.08 AU

Year: 3254 Days

Day: 12.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,429,001 km

• M1: 107,112 km (0.092 R)
• M2: 409,449 km (0.12 R)
• M3: 828,323 km (0.107 R)
• M4: 1,165,367 km (0.096 R)
• M5: 1,615,358 km (0.06 R)
• M6: 2,164,382 km (0.067 R)
• M7: 2,785,064 km (0.082 R)
• M8: 3,215,008 km (0.079 R)
• M9: 3,650,637 km (0.046 R)
• M10: 4,334,897 km (0.096 R)
• M11: 5,101,886 km (0.06 R)
• M12: 5,670,058 km (0.116 R)
• M13: 5,982,868 km (0.098 R)
• M14: 6,586,495 km (0.071 R)
• M15: 7,080,318 km (0.099 R)
• M16: 7,536,292 km (0.098 R)
• M17: 8,406,204 km (0.109 R)
• M18: 8,676,527 km (0.099 R)
• M19: 10,115,958 km (0.102 R)
• M20: 10,616,362 km (0.118 R)
• M21: 11,876,276 km (0.083 R)
• M22: 12,607,959 km (0.096 R)
• M23: 13,232,979 km (0.116 R)
• M24: 14,256,527 km (0.087 R)
• M25: 14,984,022 km (0.091 R)
• M26: 19,464,179 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.7

Radius: 11

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 3.81 AU - 4.81 AU

Year: 5689 Days

Day: 9.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,429,001 km

• M1: 137,480 km (0.078 R)
• M2: 531,072 km (0.11 R)
• M3: 1,160,431 km (0.052 R)
• M4: 1,986,211 km (0.057 R)
• M5: 2,724,028 km (0.056 R)
• M6: 3,396,021 km (0.108 R)
• M7: 6,055,572 km (0.1 R)
• M8: 6,988,614 km (0.048 R)
• M9: 8,169,241 km (0.091 R)
• M10: 9,055,010 km (0.053 R)
• M11: 10,182,977 km (0.09 R)
• M12: 11,499,888 km (0.091 R)
• M13: 13,519,160 km (0.12 R)
• M14: 18,247,799 km (0.09 R)
• M15: 19,338,218 km (0.103 R)
• M16: 20,471,571 km (0.059 R)
• M17: 21,499,159 km (0.067 R)
• M18: 25,618,336 km (0.039 R)
• M19: 28,760,191 km (0.113 R)
• M20: 29,676,478 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.3

Radius: 7

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.28 AU - 8.56 AU

Year: 14172 Days

Day: 19.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 72,429,001 km

• M1: 87,216 km (0.071 R)
• M2: 369,806 km (0.067 R)
• M3: 804,837 km (0.065 R)
• M4: 1,387,670 km (0.115 R)
• M5: 1,778,270 km (0.04 R)
• M6: 2,558,124 km (0.117 R)
• M7: 3,449,876 km (0.106 R)
• M8: 4,086,864 km (0.094 R)
• M9: 5,427,261 km (0.115 R)
• M10: 7,354,231 km (0.104 R)
• M11: 8,404,857 km (0.093 R)
• M12: 9,081,488 km (0.112 R)
• M13: 11,819,429 km (0.039 R)
• M14: 13,196,028 km (0.058 R)
• M15: 13,616,997 km (0.097 R)
• M16: 15,324,806 km (0.098 R)
• M17: 15,656,016 km (0.111 R)
• M18: 18,110,019 km (0.102 R)
• M19: 19,007,307 km (0.112 R)
• M20: 19,236,192 km (0.081 R)
• M21: 20,488,027 km (0.043 R)
• M22: 21,461,909 km (0.111 R)
• M23: 23,765,417 km (0.105 R)
• M24: 27,570,888 km (0.105 R)
• M25: 29,873,947 km (0.089 R)
• M26: 44,129,427 km (0.108 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 486.7

Radius: 7.7

Gravity: 8.21 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 10.01 AU - 11.25 AU

Year: 22036 Days

Day: 23.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 72,429,001 km

• M1: 96,491 km (0.107 R)
• M2: 370,404 km (0.083 R)
• M3: 615,745 km (0.097 R)
• M4: 953,088 km (0.104 R)
• M5: 1,212,491 km (0.106 R)
• M6: 2,250,700 km (0.118 R)
• M7: 2,766,813 km (0.089 R)
• M8: 3,066,008 km (0.069 R)
• M9: 4,655,935 km (0.077 R)
• M10: 4,972,334 km (0.1 R)
• M11: 5,454,787 km (0.112 R)
• M12: 6,132,166 km (0.042 R)
• M13: 7,228,569 km (0.077 R)
• M14: 7,701,897 km (0.114 R)
• M15: 9,634,552 km (0.075 R)
• M16: 11,110,185 km (0.094 R)
• M17: 13,561,945 km (0.1 R)
• M18: 14,063,397 km (0.073 R)
• M19: 14,576,966 km (0.081 R)
• M20: 15,027,106 km (0.099 R)
• M21: 18,096,406 km (0.101 R)
• M22: 29,645,212 km (0.107 R)
• M23: 31,349,580 km (0.045 R)
• M24: 33,247,080 km (0.105 R)
• M25: 38,111,105 km (0.112 R)
• M26: 40,417,306 km (0.107 R)
• M27: 41,905,056 km (0.089 R)
• M28: 47,236,425 km (0.058 R)
• M29: 47,727,405 km (0.087 R)
• M30: 49,053,441 km (0.069 R)
• M31: 55,689,303 km (0.108 R)
• M32: 57,902,903 km (0.095 R)
• M33: 63,493,525 km (0.109 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: 190 - 13,289 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit