🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.3

Radius: 11.8

Gravity: 7 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.49 AU - 0.61 AU

Year: 272 Days

Day: 8.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,360,036 km

• M1: 149,448 km (0.087 R)
• M2: 533,316 km (0.092 R)
• M3: 972,685 km (0.107 R)
• M4: 1,403,826 km (0.095 R)
• M5: 2,039,767 km (0.117 R)
• M6: 2,540,770 km (0.05 R)
• M7: 3,913,630 km (0.097 R)
• M8: 4,475,819 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.7

Radius: 10.7

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.55 AU - 0.67 AU

Year: 318 Days

Day: 5.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 24.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,360,036 km

• M1: 133,142 km (0.094 R)
• M2: 469,887 km (0.094 R)
• M3: 911,500 km (0.098 R)
• M4: 1,272,779 km (0.037 R)
• M5: 1,773,333 km (0.1 R)
• M6: 2,199,238 km (0.058 R)
• M7: 2,590,586 km (0.115 R)
• M8: 4,092,250 km (0.092 R)
• M9: 4,470,583 km (0.096 R)
• M10: 4,915,038 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 88.7

Radius: 14.7

Gravity: 0.41 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.69 AU - 0.77 AU

Year: 416 Days

Day: 12.2 Hours

Environment

Temp: -164 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 57,360,036 km

• M1: 182,809 km (0.09 R)
• M2: 656,884 km (0.096 R)
• M3: 1,257,221 km (0.106 R)
• M4: 1,788,293 km (0.069 R)
• M5: 2,370,229 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.7

Radius: 13.2

Gravity: 4.24 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.29 AU - 1.47 AU

Year: 1081 Days

Day: 7 Hours

Environment

Temp: -181 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,360,036 km

• M1: 164,109 km (0.079 R)
• M2: 623,374 km (0.099 R)
• M3: 1,056,460 km (0.065 R)
• M4: 1,656,647 km (0.099 R)
• M5: 2,341,955 km (0.038 R)
• M6: 2,873,177 km (0.107 R)
• M7: 3,396,320 km (0.043 R)
• M8: 4,317,843 km (0.091 R)
• M9: 4,837,995 km (0.071 R)
• M10: 6,201,879 km (0.11 R)
• M11: 6,701,536 km (0.111 R)
• M12: 7,154,817 km (0.053 R)
• M13: 8,123,015 km (0.071 R)
• M14: 8,722,304 km (0.083 R)
• M15: 10,040,560 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.5

Radius: 9.5

Gravity: 10.57 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.31 AU - 3.07 AU

Year: 2942 Days

Day: 8.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 57,360,036 km

• M1: 118,182 km (0.09 R)
• M2: 613,351 km (0.062 R)
• M3: 1,154,297 km (0.076 R)
• M4: 1,952,103 km (0.041 R)
• M5: 3,335,733 km (0.085 R)
• M6: 4,714,278 km (0.07 R)
• M7: 6,293,283 km (0.113 R)
• M8: 7,139,858 km (0.036 R)
• M9: 8,372,394 km (0.11 R)
• M10: 8,728,587 km (0.088 R)
• M11: 9,281,949 km (0.113 R)
• M12: 10,622,945 km (0.109 R)
• M13: 14,893,216 km (0.094 R)
• M14: 17,290,821 km (0.04 R)
• M15: 19,934,515 km (0.093 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 908.9

Radius: 10.1

Gravity: 8.91 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 2.66 AU - 2.96 AU

Year: 3141 Days

Day: 8.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 57,360,036 km

• M1: 125,662 km (0.064 R)
• M2: 490,531 km (0.094 R)
• M3: 926,460 km (0.1 R)
• M4: 1,412,653 km (0.05 R)
• M5: 2,607,491 km (0.058 R)
• M6: 3,394,525 km (0.1 R)
• M7: 5,123,877 km (0.069 R)
• M8: 5,896,250 km (0.108 R)
• M9: 6,296,126 km (0.111 R)
• M10: 6,867,739 km (0.08 R)
• M11: 7,182,194 km (0.115 R)
• M12: 7,908,192 km (0.069 R)
• M13: 8,718,863 km (0.037 R)
• M14: 9,200,867 km (0.106 R)
• M15: 11,396,515 km (0.094 R)
• M16: 12,803,932 km (0.104 R)
• M17: 14,786,702 km (0.1 R)
• M18: 16,346,709 km (0.078 R)
• M19: 17,777,164 km (0.05 R)
• M20: 19,227,216 km (0.04 R)
• M21: 20,365,506 km (0.106 R)
• M22: 23,265,610 km (0.092 R)
• M23: 23,619,709 km (0.089 R)
• M24: 24,121,609 km (0.057 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 565.9

Radius: 12

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.68 AU - 3.08 AU

Year: 3259 Days

Day: 10.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,360,036 km

• M1: 149,299 km (0.04 R)
• M2: 551,867 km (0.056 R)
• M3: 1,365,679 km (0.045 R)
• M4: 2,577,272 km (0.051 R)
• M5: 2,988,217 km (0.048 R)
• M6: 3,554,445 km (0.091 R)
• M7: 4,025,230 km (0.12 R)
• M8: 4,449,340 km (0.103 R)
• M9: 5,288,434 km (0.032 R)
• M10: 6,454,101 km (0.113 R)
• M11: 7,097,671 km (0.097 R)
• M12: 9,001,304 km (0.034 R)
• M13: 9,956,935 km (0.075 R)
• M14: 11,854,285 km (0.083 R)
• M15: 13,555,961 km (0.105 R)
• M16: 14,125,629 km (0.089 R)
• M17: 15,364,001 km (0.071 R)
• M18: 19,275,087 km (0.066 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.8

Radius: 12.3

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 4.51 AU - 4.87 AU

Year: 6773 Days

Day: 13.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 127.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,360,036 km

• M1: 155,283 km (0.049 R)
• M2: 561,291 km (0.086 R)
• M3: 1,208,302 km (0.114 R)
• M4: 1,830,928 km (0.061 R)
• M5: 2,419,446 km (0.104 R)
• M6: 2,955,755 km (0.069 R)
• M7: 3,703,295 km (0.077 R)
• M8: 4,547,476 km (0.093 R)
• M9: 5,369,367 km (0.047 R)
• M10: 6,033,282 km (0.082 R)
• M11: 6,483,871 km (0.102 R)
• M12: 7,489,019 km (0.103 R)
• M13: 8,124,960 km (0.1 R)
• M14: 9,677,037 km (0.093 R)
• M15: 11,418,656 km (0.116 R)
• M16: 12,987,339 km (0.113 R)
• M17: 14,466,862 km (0.108 R)
• M18: 17,242,052 km (0.034 R)
• M19: 23,271,744 km (0.072 R)
• M20: 24,545,570 km (0.107 R)
• M21: 25,199,612 km (0.105 R)
• M22: 27,668,425 km (0.112 R)
• M23: 28,645,748 km (0.075 R)
• M24: 30,952,398 km (0.079 R)
• M25: 31,619,904 km (0.079 R)
• M26: 32,884,903 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 798.8

Radius: 6.8

Gravity: 17.28 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 5.68 AU - 7.66 AU

Year: 11487 Days

Day: 20.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 57,360,036 km

• M1: 84,672 km (0.09 R)
• M2: 385,813 km (0.116 R)
• M3: 603,627 km (0.059 R)
• M4: 1,101,190 km (0.088 R)
• M5: 1,363,585 km (0.085 R)
• M6: 1,576,462 km (0.075 R)
• M7: 1,981,274 km (0.054 R)
• M8: 2,494,395 km (0.107 R)
• M9: 2,860,760 km (0.116 R)
• M10: 3,438,357 km (0.099 R)
• M11: 3,782,283 km (0.109 R)
• M12: 4,356,140 km (0.096 R)
• M13: 4,664,162 km (0.086 R)
• M14: 5,220,966 km (0.1 R)
• M15: 8,451,083 km (0.107 R)
• M16: 8,688,794 km (0.087 R)
• M17: 9,944,818 km (0.114 R)
• M18: 10,977,193 km (0.094 R)
• M19: 11,260,381 km (0.059 R)
• M20: 11,548,357 km (0.084 R)
• M21: 11,959,901 km (0.085 R)
• M22: 12,259,695 km (0.1 R)
• M23: 18,794,130 km (0.095 R)
• M24: 19,036,628 km (0.119 R)
• M25: 21,140,722 km (0.089 R)
• M26: 21,667,756 km (0.045 R)
• M27: 22,024,098 km (0.059 R)
• M28: 23,488,212 km (0.041 R)
• M29: 27,952,362 km (0.095 R)
• M30: 37,610,401 km (0.087 R)
• M31: 52,089,231 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 7.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 692.7

Radius: 5.1

Gravity: 26.63 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 6.9 AU - 7.6 AU

Year: 13018 Days

Day: 16.7 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,360,036 km

• M1: 63,429 km (0.114 R)
• M2: 293,810 km (0.112 R)
• M3: 528,679 km (0.048 R)
• M4: 698,772 km (0.09 R)
• M5: 1,460,823 km (0.101 R)
• M6: 2,160,193 km (0.12 R)
• M7: 2,335,372 km (0.069 R)
• M8: 2,849,540 km (0.087 R)
• M9: 3,307,759 km (0.083 R)
• M10: 3,541,281 km (0.077 R)
• M11: 4,812,264 km (0.086 R)
• M12: 4,977,570 km (0.117 R)
• M13: 5,496,226 km (0.118 R)
• M14: 5,713,442 km (0.119 R)
• M15: 9,596,105 km (0.037 R)
• M16: 10,618,606 km (0.114 R)
• M17: 11,652,328 km (0.094 R)
• M18: 13,326,178 km (0.12 R)
• M19: 14,186,516 km (0.057 R)
• M20: 15,653,772 km (0.065 R)
• M21: 23,470,111 km (0.114 R)
• M22: 27,568,644 km (0.09 R)
• M23: 31,539,569 km (0.032 R)
• M24: 32,706,582 km (0.043 R)
• M25: 37,533,807 km (0.05 R)
• M26: 41,972,076 km (0.071 R)
• M27: 46,448,344 km (0.11 R)
• M28: 46,897,736 km (0.053 R)
• M29: 49,343,362 km (0.045 R)
• M30: 54,653,637 km (0.088 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 336 - 19,816 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit