🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 589.8

Radius: 9.7

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.73 AU - 0.91 AU

Year: 487 Days

Day: 9.3 Hours

Environment

Temp: -155 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 46,430,890 km

• M1: 121,324 km (0.081 R)
• M2: 471,532 km (0.075 R)
• M3: 784,042 km (0.096 R)
• M4: 1,389,166 km (0.116 R)
• M5: 1,881,792 km (0.099 R)
• M6: 3,082,315 km (0.074 R)
• M7: 3,419,658 km (0.078 R)
• M8: 5,993,190 km (0.092 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.7

Radius: 11

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.83 AU - 1.05 AU

Year: 598 Days

Day: 7.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 55.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 46,430,890 km

• M1: 136,882 km (0.06 R)
• M2: 509,979 km (0.059 R)
• M3: 923,019 km (0.106 R)
• M4: 1,448,556 km (0.045 R)
• M5: 1,874,611 km (0.071 R)
• M6: 4,727,592 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.6

Radius: 14

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.96 AU - 1.12 AU

Year: 696 Days

Day: 7.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,430,890 km

• M1: 174,132 km (0.106 R)
• M2: 774,767 km (0.056 R)
• M3: 1,264,551 km (0.117 R)
• M4: 1,783,506 km (0.111 R)
• M5: 2,345,545 km (0.118 R)
• M6: 3,120,462 km (0.106 R)
• M7: 3,575,688 km (0.084 R)
• M8: 4,653,541 km (0.063 R)
• M9: 5,097,398 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.4

Radius: 8

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.46 AU - 1.58 AU

Year: 1229 Days

Day: 14.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,430,890 km

• M1: 99,483 km (0.057 R)
• M2: 405,261 km (0.07 R)
• M3: 698,772 km (0.098 R)
• M4: 1,050,327 km (0.11 R)
• M5: 1,321,099 km (0.119 R)
• M6: 1,945,520 km (0.115 R)
• M7: 2,514,291 km (0.112 R)
• M8: 3,115,525 km (0.117 R)
• M9: 3,589,601 km (0.066 R)
• M10: 3,993,964 km (0.105 R)
• M11: 6,590,534 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.9

Radius: 12.5

Gravity: 0.51 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.77 AU - 2.87 AU

Year: 2318 Days

Day: 11.4 Hours

Environment

Temp: -190 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 46,430,890 km

• M1: 155,432 km (0.056 R)
• M2: 560,543 km (0.081 R)
• M3: 1,039,705 km (0.061 R)
• M4: 2,640,253 km (0.116 R)
• M5: 3,450,475 km (0.086 R)
• M6: 5,228,446 km (0.066 R)
• M7: 7,161,699 km (0.037 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 611.5

Radius: 12.8

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.99 AU - 4.37 AU

Year: 4631 Days

Day: 12 Hours

Environment

Temp: -216 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 46,430,890 km

• M1: 159,322 km (0.047 R)
• M2: 563,086 km (0.088 R)
• M3: 1,102,088 km (0.113 R)
• M4: 1,852,022 km (0.051 R)
• M5: 2,373,669 km (0.108 R)
• M6: 3,121,509 km (0.069 R)
• M7: 3,613,237 km (0.057 R)
• M8: 4,365,266 km (0.094 R)
• M9: 4,880,182 km (0.117 R)
• M10: 9,300,649 km (0.087 R)
• M11: 10,115,060 km (0.118 R)
• M12: 10,800,517 km (0.077 R)
• M13: 11,608,346 km (0.111 R)
• M14: 12,121,616 km (0.047 R)
• M15: 12,552,907 km (0.117 R)
• M16: 14,541,212 km (0.107 R)
• M17: 18,877,307 km (0.105 R)
• M18: 20,994,416 km (0.094 R)
• M19: 26,011,031 km (0.092 R)
• M20: 26,810,482 km (0.119 R)
• M21: 27,379,851 km (0.028 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.3

Radius: 8.2

Gravity: 14.22 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.88 AU - 4.36 AU

Year: 5486 Days

Day: 12.1 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 46,430,890 km

• M1: 102,923 km (0.055 R)
• M2: 537,505 km (0.088 R)
• M3: 913,295 km (0.078 R)
• M4: 1,178,831 km (0.098 R)
• M5: 2,066,395 km (0.067 R)
• M6: 2,462,531 km (0.068 R)
• M7: 3,214,260 km (0.076 R)
• M8: 4,110,800 km (0.104 R)
• M9: 4,417,625 km (0.108 R)
• M10: 5,282,151 km (0.078 R)
• M11: 5,614,707 km (0.074 R)
• M12: 8,187,791 km (0.113 R)
• M13: 8,592,602 km (0.076 R)
• M14: 10,394,060 km (0.113 R)
• M15: 10,868,884 km (0.075 R)
• M16: 13,408,308 km (0.056 R)
• M17: 13,800,703 km (0.115 R)
• M18: 14,785,655 km (0.118 R)
• M19: 15,447,626 km (0.113 R)
• M20: 18,089,524 km (0.119 R)
• M21: 18,362,391 km (0.04 R)
• M22: 22,872,018 km (0.043 R)
• M23: 24,166,788 km (0.11 R)
• M24: 29,270,170 km (0.098 R)
• M25: 30,698,231 km (0.105 R)
• M26: 31,478,534 km (0.065 R)
• M27: 34,314,012 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 186.4

Radius: 3.8

Gravity: 12.91 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 8.87 AU - 9.51 AU

Year: 18276 Days

Day: 15 Hours

Environment

Temp: -224 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 46,430,890 km

• M1: 48,021 km (0.069 R)
• M2: 233,672 km (0.091 R)
• M3: 575,653 km (0.055 R)
• M4: 980,614 km (0.074 R)
• M5: 1,775,428 km (0.104 R)
• M6: 2,572,335 km (0.081 R)
• M7: 3,410,682 km (0.088 R)
• M8: 4,359,132 km (0.03 R)
• M9: 5,338,849 km (0.035 R)
• M10: 6,456,943 km (0.113 R)
• M11: 7,270,157 km (0.114 R)
• M12: 7,514,451 km (0.115 R)
• M13: 7,848,802 km (0.111 R)
• M14: 8,547,125 km (0.071 R)
• M15: 8,865,170 km (0.103 R)
• M16: 10,731,553 km (0.116 R)
• M17: 12,551,710 km (0.043 R)
• M18: 12,785,382 km (0.064 R)
• M19: 16,508,574 km (0.114 R)
• M20: 17,216,022 km (0.077 R)
• M21: 18,919,344 km (0.041 R)
• M22: 19,537,183 km (0.074 R)
• M23: 21,388,307 km (0.09 R)
• M24: 23,265,311 km (0.096 R)
• M25: 23,529,501 km (0.066 R)
• M26: 25,621,777 km (0.12 R)
• M27: 30,802,202 km (0.115 R)
• M28: 34,313,712 km (0.071 R)
• M29: 35,347,434 km (0.106 R)
• M30: 42,774,370 km (0.118 R)
• M31: 45,876,581 km (0.049 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 425 - 10,730 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit