🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.8

Radius: 14.6

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.63 AU - 0.97 AU

Year: 494 Days

Day: 14.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,640,260 km

• M1: 181,612 km (0.107 R)
• M2: 677,678 km (0.094 R)
• M3: 1,178,532 km (0.059 R)
• M4: 1,686,716 km (0.104 R)
• M5: 2,305,902 km (0.077 R)
• M6: 2,819,022 km (0.089 R)
• M7: 3,508,519 km (0.059 R)
• M8: 4,308,867 km (0.08 R)
• M9: 4,902,621 km (0.053 R)
• M10: 5,779,415 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239.8

Radius: 14.2

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.7 AU - 0.98 AU

Year: 531 Days

Day: 14.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 43,640,260 km

• M1: 176,675 km (0.087 R)
• M2: 869,014 km (0.119 R)
• M3: 1,609,823 km (0.102 R)
• M4: 2,844,155 km (0.079 R)
• M5: 3,495,354 km (0.09 R)
• M6: 4,308,867 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 440.2

Radius: 10.1

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 1.42 AU - 1.58 AU

Year: 1268 Days

Day: 10.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,640,260 km

• M1: 125,812 km (0.088 R)
• M2: 451,038 km (0.088 R)
• M3: 800,648 km (0.12 R)
• M4: 1,176,138 km (0.116 R)
• M5: 1,669,961 km (0.056 R)
• M6: 2,015,831 km (0.081 R)
• M7: 2,595,822 km (0.103 R)
• M8: 3,091,141 km (0.099 R)
• M9: 4,056,346 km (0.066 R)
• M10: 5,153,497 km (0.119 R)
• M11: 6,437,944 km (0.117 R)
• M12: 7,372,781 km (0.032 R)
• M13: 7,771,161 km (0.065 R)
• M14: 9,923,276 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.9

Radius: 12.7

Gravity: 3.66 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 1.76 AU - 2 AU

Year: 1779 Days

Day: 10 Hours

Environment

Temp: -205 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 43,640,260 km

• M1: 158,125 km (0.093 R)
• M2: 846,425 km (0.111 R)
• M3: 1,246,150 km (0.109 R)
• M4: 1,921,136 km (0.104 R)
• M5: 2,572,335 km (0.069 R)
• M6: 3,180,451 km (0.029 R)
• M7: 3,610,096 km (0.112 R)
• M8: 4,666,855 km (0.098 R)
• M9: 5,160,528 km (0.086 R)
• M10: 5,757,573 km (0.113 R)
• M11: 6,277,875 km (0.076 R)
• M12: 6,752,249 km (0.107 R)
• M13: 8,439,713 km (0.064 R)
• M14: 9,238,716 km (0.087 R)
• M15: 10,358,905 km (0.069 R)
• M16: 11,130,680 km (0.114 R)
• M17: 14,434,699 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817

Radius: 14.8

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 1.91 AU - 1.97 AU

Year: 1865 Days

Day: 12 Hours

Environment

Temp: -204 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 43,640,260 km

• M1: 184,903 km (0.096 R)
• M2: 668,254 km (0.053 R)
• M3: 1,203,066 km (0.12 R)
• M4: 1,669,512 km (0.099 R)
• M5: 2,186,522 km (0.042 R)
• M6: 3,571,500 km (0.116 R)
• M7: 5,551,427 km (0.062 R)
• M8: 10,694,752 km (0.082 R)
• M9: 11,636,022 km (0.077 R)
• M10: 14,387,276 km (0.081 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.5

Radius: 8.4

Gravity: 12.39 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 5.41 AU - 5.59 AU

Year: 8903 Days

Day: 8.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 43,640,260 km

• M1: 107,112 km (0.12 R)
• M2: 439,070 km (0.118 R)
• M3: 1,349,822 km (0.101 R)
• M4: 2,802,267 km (0.068 R)
• M5: 3,487,126 km (0.042 R)
• M6: 3,790,660 km (0.119 R)
• M7: 4,111,847 km (0.1 R)
• M8: 4,538,799 km (0.119 R)
• M9: 5,650,760 km (0.102 R)
• M10: 6,288,795 km (0.093 R)
• M11: 10,580,758 km (0.091 R)
• M12: 12,692,482 km (0.109 R)
• M13: 13,784,696 km (0.113 R)
• M14: 15,203,332 km (0.089 R)
• M15: 16,787,723 km (0.071 R)
• M16: 17,730,489 km (0.074 R)
• M17: 22,804,550 km (0.077 R)
• M18: 23,333,229 km (0.069 R)
• M19: 25,623,871 km (0.031 R)
• M20: 27,660,646 km (0.046 R)
• M21: 32,716,905 km (0.065 R)
• M22: 33,502,294 km (0.079 R)
• M23: 34,415,140 km (0.026 R)
• M24: 37,496,557 km (0.116 R)
• M25: 38,480,462 km (0.086 R)
• M26: 39,861,400 km (0.102 R)
• M27: 41,666,298 km (0.079 R)
• M28: 46,275,259 km (0.109 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 734.5

Radius: 6.8

Gravity: 15.88 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 5.34 AU - 6 AU

Year: 9319 Days

Day: 18.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 43,640,260 km

• M1: 85,121 km (0.092 R)
• M2: 415,284 km (0.104 R)
• M3: 683,213 km (0.027 R)
• M4: 1,200,673 km (0.088 R)
• M5: 1,449,753 km (0.113 R)
• M6: 1,794,426 km (0.082 R)
• M7: 2,489,907 km (0.034 R)
• M8: 3,472,615 km (0.108 R)
• M9: 3,877,726 km (0.062 R)
• M10: 4,544,035 km (0.076 R)
• M11: 6,137,851 km (0.088 R)
• M12: 6,392,616 km (0.102 R)
• M13: 7,199,398 km (0.074 R)
• M14: 8,246,134 km (0.112 R)
• M15: 10,380,147 km (0.095 R)
• M16: 13,456,478 km (0.044 R)
• M17: 14,011,935 km (0.109 R)
• M18: 15,300,721 km (0.106 R)
• M19: 16,526,526 km (0.073 R)
• M20: 17,963,862 km (0.059 R)
• M21: 20,113,284 km (0.03 R)
• M22: 20,514,356 km (0.045 R)
• M23: 22,002,556 km (0.115 R)
• M24: 22,514,330 km (0.057 R)
• M25: 22,859,751 km (0.109 R)
• M26: 24,549,459 km (0.094 R)
• M27: 25,752,525 km (0.105 R)
• M28: 29,083,771 km (0.119 R)
• M29: 30,220,266 km (0.116 R)
• M30: 32,581,369 km (0.081 R)
• M31: 34,717,178 km (0.088 R)
• M32: 38,154,339 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 108.5

Radius: 3.2

Gravity: 10.6 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 9.82 AU - 10.18 AU

Year: 21828 Days

Day: 19.7 Hours

Environment

Temp: -243 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 43,640,260 km

• M1: 48,320 km (0.117 R)
• M2: 721,062 km (0.114 R)
• M3: 1,649,765 km (0.102 R)
• M4: 2,266,258 km (0.072 R)
• M5: 2,566,950 km (0.088 R)
• M6: 4,624,519 km (0.086 R)
• M7: 5,789,438 km (0.074 R)
• M8: 6,421,339 km (0.099 R)
• M9: 6,791,444 km (0.106 R)
• M10: 10,231,148 km (0.063 R)
• M11: 13,153,243 km (0.1 R)
• M12: 14,300,808 km (0.106 R)
• M13: 18,360,296 km (0.109 R)
• M14: 24,611,243 km (0.11 R)
• M15: 25,150,693 km (0.074 R)
• M16: 26,721,471 km (0.12 R)
• M17: 27,579,115 km (0.039 R)
• M18: 39,464,666 km (0.045 R)
• M19: 41,707,587 km (0.116 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 277 - 15,513 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit