🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 61.4

Radius: 14.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.49 AU - 0.65 AU

Year: 287 Days

Day: 5.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 93,614,868 km

• M1: 179,069 km (0.049 R)
• M2: 1,075,309 km (0.026 R)
• M3: 1,582,297 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 634.1

Radius: 13.8

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.54 AU - 0.7 AU

Year: 326 Days

Day: 13.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 93,614,868 km

• M1: 171,589 km (0.119 R)
• M2: 651,349 km (0.112 R)
• M3: 1,109,717 km (0.11 R)
• M4: 1,577,360 km (0.105 R)
• M5: 2,024,508 km (0.081 R)
• M6: 2,557,824 km (0.081 R)
• M7: 3,051,348 km (0.108 R)
• M8: 3,552,201 km (0.064 R)
• M9: 4,033,907 km (0.096 R)
• M10: 4,466,394 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 173.2

Radius: 9.5

Gravity: 1.92 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.6 AU - 0.68 AU

Year: 341 Days

Day: 8.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 93,614,868 km

• M1: 118,182 km (0.104 R)
• M2: 419,024 km (0.052 R)
• M3: 794,963 km (0.1 R)
• M4: 1,140,534 km (0.117 R)
• M5: 1,445,415 km (0.119 R)
• M6: 1,805,646 km (0.118 R)
• M7: 2,541,518 km (0.106 R)
• M8: 2,878,562 km (0.118 R)
• M9: 3,190,025 km (0.041 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 767.1

Radius: 14.3

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.57 AU - 0.71 AU

Year: 341 Days

Day: 8.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 93,614,868 km

• M1: 178,171 km (0.101 R)
• M2: 683,363 km (0.083 R)
• M3: 1,145,022 km (0.105 R)
• M4: 1,599,949 km (0.087 R)
• M5: 2,130,423 km (0.089 R)
• M6: 2,968,171 km (0.05 R)
• M7: 3,453,317 km (0.086 R)
• M8: 4,067,417 km (0.118 R)
• M9: 4,599,536 km (0.043 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.6

Radius: 13.9

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.77 AU - 1.09 AU

Year: 598 Days

Day: 9.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 93,614,868 km

• M1: 172,935 km (0.086 R)
• M2: 647,609 km (0.096 R)
• M3: 1,212,341 km (0.104 R)
• M4: 1,985,912 km (0.111 R)
• M5: 2,633,371 km (0.063 R)
• M6: 3,235,952 km (0.083 R)
• M7: 4,460,560 km (0.101 R)
• M8: 5,424,419 km (0.102 R)
• M9: 5,974,640 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.5

Radius: 12.3

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.44 AU - 2.12 AU

Year: 1584 Days

Day: 9.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 93,614,868 km

• M1: 153,039 km (0.109 R)
• M2: 622,626 km (0.082 R)
• M3: 1,150,108 km (0.103 R)
• M4: 1,655,450 km (0.113 R)
• M5: 2,959,495 km (0.06 R)
• M6: 3,541,430 km (0.029 R)
• M7: 4,044,079 km (0.113 R)
• M8: 5,053,865 km (0.1 R)
• M9: 6,549,844 km (0.103 R)
• M10: 7,059,224 km (0.055 R)
• M11: 9,517,716 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.9

Radius: 10.8

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.89 AU - 4.31 AU

Year: 4555 Days

Day: 7.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 93,614,868 km

• M1: 134,339 km (0.039 R)
• M2: 476,918 km (0.091 R)
• M3: 1,052,271 km (0.083 R)
• M4: 1,434,644 km (0.055 R)
• M5: 2,365,890 km (0.101 R)
• M6: 2,875,271 km (0.095 R)
• M7: 3,241,935 km (0.119 R)
• M8: 4,115,288 km (0.082 R)
• M9: 5,271,081 km (0.068 R)
• M10: 7,111,284 km (0.093 R)
• M11: 7,787,168 km (0.113 R)
• M12: 8,431,486 km (0.104 R)
• M13: 9,424,666 km (0.074 R)
• M14: 10,708,664 km (0.104 R)
• M15: 11,146,837 km (0.109 R)
• M16: 14,397,897 km (0.036 R)
• M17: 17,501,156 km (0.09 R)
• M18: 17,986,900 km (0.106 R)
• M19: 19,498,287 km (0.062 R)
• M20: 21,504,544 km (0.048 R)
• M21: 24,089,296 km (0.111 R)
• M22: 25,845,276 km (0.093 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667.2

Radius: 13.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 3.68 AU - 6.1 AU

Year: 7211 Days

Day: 8.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 41.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 93,614,868 km

• M1: 165,006 km (0.055 R)
• M2: 590,463 km (0.075 R)
• M3: 1,468,901 km (0.093 R)
• M4: 2,300,366 km (0.113 R)
• M5: 2,727,917 km (0.105 R)
• M6: 3,538,139 km (0.119 R)
• M7: 4,947,052 km (0.066 R)
• M8: 5,668,114 km (0.089 R)
• M9: 6,596,817 km (0.088 R)
• M10: 7,283,023 km (0.119 R)
• M11: 8,421,762 km (0.106 R)
• M12: 11,401,602 km (0.09 R)
• M13: 11,915,470 km (0.088 R)
• M14: 12,498,603 km (0.06 R)
• M15: 13,212,334 km (0.097 R)
• M16: 14,541,212 km (0.066 R)
• M17: 15,894,175 km (0.094 R)
• M18: 24,025,418 km (0.039 R)
• M19: 26,444,565 km (0.104 R)
• M20: 27,164,580 km (0.12 R)
• M21: 32,167,432 km (0.066 R)
• M22: 32,678,608 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 903.4

Radius: 5.1

Gravity: 34.73 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 9.53 AU - 12.13 AU

Year: 23767 Days

Day: 24.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 93,614,868 km

• M1: 64,925 km (0.102 R)
• M2: 539,450 km (0.077 R)
• M3: 1,356,703 km (0.076 R)
• M4: 1,945,969 km (0.069 R)
• M5: 3,364,606 km (0.098 R)
• M6: 3,580,475 km (0.102 R)
• M7: 5,036,362 km (0.085 R)
• M8: 5,872,913 km (0.077 R)
• M9: 8,531,567 km (0.048 R)
• M10: 9,530,282 km (0.064 R)
• M11: 10,152,908 km (0.067 R)
• M12: 12,473,171 km (0.082 R)
• M13: 13,066,327 km (0.105 R)
• M14: 19,968,922 km (0.117 R)
• M15: 20,169,683 km (0.118 R)
• M16: 21,930,599 km (0.076 R)
• M17: 22,251,636 km (0.041 R)
• M18: 24,017,041 km (0.087 R)
• M19: 24,587,308 km (0.09 R)
• M20: 27,949,071 km (0.062 R)
• M21: 29,739,309 km (0.106 R)
• M22: 31,877,361 km (0.101 R)
• M23: 36,158,254 km (0.06 R)
• M24: 36,756,496 km (0.095 R)
• M25: 40,968,424 km (0.094 R)
• M26: 44,287,851 km (0.04 R)
• M27: 44,629,383 km (0.117 R)
• M28: 48,321,907 km (0.119 R)
• M29: 48,502,622 km (0.099 R)
• M30: 49,230,116 km (0.094 R)
• M31: 59,775,120 km (0.082 R)
• M32: 61,879,962 km (0.111 R)
• M33: 63,598,992 km (0.088 R)
• M34: 66,236,851 km (0.107 R)
• M35: 68,718,081 km (0.102 R)
• M36: 73,625,789 km (0.044 R)
• M37: 76,777,966 km (0.18 R)
• M38: 89,740,471 km (0.11 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 360 - 19,687 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit