🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 355.2

Radius: 8.8

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.59 AU - 0.63 AU

Year: 329 Days

Day: 9.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,853,581 km

• M1: 109,805 km (0.086 R)
• M2: 386,112 km (0.1 R)
• M3: 714,629 km (0.119 R)
• M4: 1,065,885 km (0.043 R)
• M5: 1,444,667 km (0.112 R)
• M6: 2,251,897 km (0.085 R)
• M7: 3,024,719 km (0.047 R)
• M8: 3,373,432 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.7

Radius: 12.5

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 1.36 AU - 1.66 AU

Year: 1281 Days

Day: 8.4 Hours

Environment

Temp: -200 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 63,853,581 km

• M1: 155,432 km (0.045 R)
• M2: 586,872 km (0.117 R)
• M3: 1,154,297 km (0.097 R)
• M4: 1,588,879 km (0.098 R)
• M5: 2,236,638 km (0.096 R)
• M6: 2,884,995 km (0.039 R)
• M7: 3,721,696 km (0.108 R)
• M8: 4,315,899 km (0.028 R)
• M9: 5,920,785 km (0.11 R)
• M10: 7,166,187 km (0.104 R)
• M11: 8,520,646 km (0.045 R)
• M12: 8,937,276 km (0.1 R)
• M13: 10,270,043 km (0.039 R)
• M14: 11,731,016 km (0.108 R)
• M15: 12,972,978 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 50.9

Radius: 13.6

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.51 AU - 2.11 AU

Year: 1681 Days

Day: 5.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,853,581 km

• M1: 169,644 km (0.054 R)
• M2: 1,008,290 km (0.11 R)
• M3: 1,503,907 km (0.118 R)
• M4: 1,972,298 km (0.109 R)
• M5: 2,452,956 km (0.11 R)
• M6: 3,156,665 km (0.092 R)
• M7: 3,938,912 km (0.108 R)
• M8: 5,400,334 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 389.5

Radius: 8

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1.51 AU - 2.27 AU

Year: 1794 Days

Day: 6.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 63,853,581 km

• M1: 99,632 km (0.086 R)
• M2: 487,390 km (0.097 R)
• M3: 755,020 km (0.064 R)
• M4: 1,145,172 km (0.104 R)
• M5: 2,444,429 km (0.094 R)
• M6: 2,699,045 km (0.045 R)
• M7: 3,056,883 km (0.098 R)
• M8: 3,524,526 km (0.099 R)
• M9: 3,952,974 km (0.043 R)
• M10: 4,527,430 km (0.058 R)
• M11: 5,238,768 km (0.084 R)
• M12: 5,731,094 km (0.093 R)
• M13: 7,084,058 km (0.119 R)
• M14: 7,713,117 km (0.085 R)
• M15: 8,493,419 km (0.101 R)
• M16: 8,962,408 km (0.092 R)
• M17: 9,325,333 km (0.091 R)
• M18: 11,429,277 km (0.087 R)
• M19: 12,146,898 km (0.118 R)
• M20: 12,442,205 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 67.9

Radius: 11.2

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.94 AU - 5.42 AU

Year: 6988 Days

Day: 5.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,853,581 km

• M1: 175,628 km (0.115 R)
• M2: 584,180 km (0.097 R)
• M3: 1,175,241 km (0.045 R)
• M4: 1,625,680 km (0.112 R)
• M5: 2,807,952 km (0.076 R)
• M6: 3,591,097 km (0.111 R)
• M7: 8,554,605 km (0.115 R)
• M8: 9,624,828 km (0.111 R)
• M9: 10,595,419 km (0.08 R)
• M10: 11,278,034 km (0.043 R)
• M11: 11,949,280 km (0.087 R)
• M12: 12,315,346 km (0.066 R)
• M13: 13,027,282 km (0.092 R)
• M14: 14,396,102 km (0.077 R)
• M15: 14,904,137 km (0.108 R)
• M16: 15,664,393 km (0.093 R)
• M17: 16,903,811 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 317.8

Radius: 13.8

Gravity: 1.67 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 4.26 AU - 5.5 AU

Year: 7441 Days

Day: 5.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,853,581 km

• M1: 176,376 km (0.111 R)
• M2: 606,320 km (0.067 R)
• M3: 1,039,705 km (0.084 R)
• M4: 1,657,096 km (0.088 R)
• M5: 2,096,315 km (0.105 R)
• M6: 3,501,488 km (0.067 R)
• M7: 4,262,193 km (0.089 R)
• M8: 4,733,725 km (0.112 R)
• M9: 6,237,483 km (0.12 R)
• M10: 7,357,822 km (0.049 R)
• M11: 10,038,765 km (0.113 R)
• M12: 11,386,642 km (0.117 R)
• M13: 12,300,835 km (0.069 R)
• M14: 12,852,103 km (0.107 R)
• M15: 14,112,166 km (0.066 R)
• M16: 14,605,390 km (0.073 R)
• M17: 15,626,694 km (0.09 R)
• M18: 16,694,823 km (0.087 R)
• M19: 18,387,822 km (0.079 R)
• M20: 19,510,853 km (0.068 R)
• M21: 24,074,187 km (0.115 R)
• M22: 26,231,388 km (0.104 R)
• M23: 30,018,458 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143

Radius: 9.6

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 3.92 AU - 6.32 AU

Year: 7997 Days

Day: 5.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 27.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 63,853,581 km

• M1: 393,442 km (0.087 R)
• M2: 771,027 km (0.092 R)
• M3: 1,210,097 km (0.025 R)
• M4: 2,071,183 km (0.065 R)
• M5: 2,732,106 km (0.041 R)
• M6: 3,915,575 km (0.109 R)
• M7: 7,191,918 km (0.059 R)
• M8: 7,517,293 km (0.118 R)
• M9: 8,232,820 km (0.055 R)
• M10: 9,294,665 km (0.103 R)
• M11: 13,413,843 km (0.116 R)
• M12: 16,675,974 km (0.11 R)
• M13: 18,733,543 km (0.108 R)
• M14: 19,226,618 km (0.114 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 488.5

Radius: 6.6

Gravity: 11.21 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.98 AU - 9.28 AU

Year: 16001 Days

Day: 16.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 63,853,581 km

• M1: 82,129 km (0.056 R)
• M2: 317,297 km (0.045 R)
• M3: 543,190 km (0.12 R)
• M4: 766,390 km (0.039 R)
• M5: 1,146,368 km (0.084 R)
• M6: 1,645,876 km (0.058 R)
• M7: 2,321,161 km (0.064 R)
• M8: 2,526,409 km (0.105 R)
• M9: 2,766,364 km (0.089 R)
• M10: 3,552,501 km (0.06 R)
• M11: 4,798,651 km (0.05 R)
• M12: 5,168,307 km (0.087 R)
• M13: 7,134,921 km (0.091 R)
• M14: 7,527,466 km (0.09 R)
• M15: 8,308,067 km (0.075 R)
• M16: 8,890,901 km (0.045 R)
• M17: 10,029,490 km (0.068 R)
• M18: 11,146,238 km (0.073 R)
• M19: 11,854,734 km (0.119 R)
• M20: 13,756,871 km (0.083 R)
• M21: 14,296,620 km (0.102 R)
• M22: 16,297,342 km (0.119 R)
• M23: 17,915,093 km (0.057 R)
• M24: 23,122,595 km (0.117 R)
• M25: 26,583,242 km (0.091 R)
• M26: 27,525,859 km (0.032 R)
• M27: 33,172,131 km (0.087 R)
• M28: 38,209,540 km (0.111 R)
• M29: 40,633,923 km (0.055 R)
• M30: 52,003,960 km (0.087 R)
• M31: 53,641,757 km (0.05 R)
• M32: 55,821,997 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 237.9

Radius: 3.4

Gravity: 20.58 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 7.16 AU - 9.2 AU

Year: 16149 Days

Day: 19.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 63,853,581 km

• M1: 42,336 km (0.048 R)
• M2: 156,330 km (0.105 R)
• M3: 682,765 km (0.117 R)
• M4: 1,026,989 km (0.092 R)
• M5: 1,382,883 km (0.078 R)
• M6: 1,574,817 km (0.099 R)
• M7: 1,784,254 km (0.082 R)
• M8: 1,995,037 km (0.07 R)
• M9: 2,115,164 km (0.117 R)
• M10: 2,564,706 km (0.1 R)
• M11: 3,282,626 km (0.054 R)
• M12: 3,624,308 km (0.103 R)
• M13: 4,731,033 km (0.117 R)
• M14: 5,230,839 km (0.118 R)
• M15: 5,426,962 km (0.107 R)
• M16: 5,834,018 km (0.116 R)
• M17: 7,177,257 km (0.113 R)
• M18: 8,310,760 km (0.115 R)
• M19: 8,713,627 km (0.053 R)
• M20: 10,302,656 km (0.112 R)
• M21: 13,003,047 km (0.08 R)
• M22: 13,484,602 km (0.103 R)
• M23: 14,228,852 km (0.066 R)
• M24: 18,817,916 km (0.085 R)
• M25: 20,542,780 km (0.092 R)
• M26: 25,402,915 km (0.111 R)
• M27: 33,371,395 km (0.085 R)
• M28: 42,855,302 km (0.071 R)
• M29: 43,119,641 km (0.107 R)
• M30: 44,322,259 km (0.114 R)
• M31: 44,457,346 km (0.119 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 583.8

Radius: 7.5

Gravity: 10.38 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 7.99 AU - 8.71 AU

Year: 16655 Days

Day: 15 Hours

Environment

Temp: -240 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 63,853,581 km

• M1: 102,175 km (0.044 R)
• M2: 364,420 km (0.086 R)
• M3: 735,872 km (0.07 R)
• M4: 1,054,067 km (0.114 R)
• M5: 1,463,217 km (0.025 R)
• M6: 2,302,311 km (0.119 R)
• M7: 4,297,648 km (0.101 R)
• M8: 5,341,542 km (0.058 R)
• M9: 6,797,877 km (0.104 R)
• M10: 9,693,643 km (0.09 R)
• M11: 10,817,572 km (0.115 R)
• M12: 15,289,202 km (0.093 R)
• M13: 17,122,972 km (0.08 R)
• M14: 19,702,488 km (0.118 R)
• M15: 21,683,015 km (0.04 R)
• M16: 23,595,474 km (0.104 R)
• M17: 31,889,030 km (0.105 R)
• M18: 53,730,469 km (0.093 R)
• M19: 54,587,365 km (0.113 R)
• M20: 55,105,722 km (0.106 R)
• M21: 57,034,787 km (0.085 R)
• M22: 61,772,551 km (0.038 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 244 - 18,548 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit