🌌 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: 242.1

Radius: 10.6

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 0.57 AU - 0.57 AU

Year: 297 Days

Day: 5.7 Hours

Environment

Temp: -154 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,678,293 km

• M1: 132,993 km (0.119 R)
• M2: 492,027 km (0.114 R)
• M3: 941,719 km (0.102 R)
• M4: 1,675,347 km (0.087 R)
• M5: 2,257,133 km (0.109 R)
• M6: 2,713,855 km (0.104 R)
• M7: 3,103,258 km (0.107 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.9

Radius: 9.5

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.59 AU - 0.59 AU

Year: 313 Days

Day: 14.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,678,293 km

• M1: 118,182 km (0.095 R)
• M2: 548,127 km (0.051 R)
• M3: 866,620 km (0.031 R)
• M4: 1,211,294 km (0.083 R)
• M5: 1,729,651 km (0.116 R)
• M6: 2,256,983 km (0.069 R)
• M7: 2,779,828 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 913.8

Radius: 10.2

Gravity: 8.78 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.6 AU - 0.84 AU

Year: 422 Days

Day: 12.3 Hours

Environment

Temp: -168 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 77,678,293 km

• M1: 127,009 km (0.109 R)
• M2: 501,452 km (0.039 R)
• M3: 1,311,824 km (0.117 R)
• M4: 1,823,897 km (0.034 R)
• M5: 2,812,889 km (0.112 R)
• M6: 3,287,114 km (0.027 R)
• M7: 3,735,608 km (0.098 R)
• M8: 4,484,944 km (0.118 R)
• M9: 4,895,590 km (0.107 R)
• M10: 5,347,974 km (0.04 R)
• M11: 5,775,226 km (0.064 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.8

Radius: 14.5

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.78 AU - 1.18 AU

Year: 670 Days

Day: 8.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,678,293 km

• M1: 180,714 km (0.094 R)
• M2: 703,858 km (0.119 R)
• M3: 1,392,607 km (0.076 R)
• M4: 1,860,399 km (0.049 R)
• M5: 2,395,959 km (0.079 R)
• M6: 2,853,729 km (0.06 R)
• M7: 3,383,156 km (0.052 R)
• M8: 3,978,107 km (0.069 R)
• M9: 4,595,946 km (0.097 R)
• M10: 5,076,155 km (0.085 R)
• M11: 5,878,000 km (0.093 R)
• M12: 6,602,951 km (0.036 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.9

Radius: 11.7

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 1.54 AU - 1.58 AU

Year: 1345 Days

Day: 7.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,678,293 km

• M1: 145,559 km (0.1 R)
• M2: 713,133 km (0.069 R)
• M3: 1,278,763 km (0.117 R)
• M4: 2,802,417 km (0.12 R)
• M5: 3,534,549 km (0.057 R)
• M6: 4,042,134 km (0.097 R)
• M7: 4,598,040 km (0.118 R)
• M8: 6,073,973 km (0.109 R)
• M9: 6,736,243 km (0.085 R)
• M10: 7,895,327 km (0.066 R)
• M11: 8,711,832 km (0.053 R)
• M12: 9,296,460 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.2

Radius: 13.9

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.09 AU - 4.93 AU

Year: 6611 Days

Day: 12.2 Hours

Environment

Temp: -214 °C

Axial Tilt: 34.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,678,293 km

• M1: 172,935 km (0.094 R)
• M2: 662,569 km (0.03 R)
• M3: 1,161,478 km (0.105 R)
• M4: 1,904,231 km (0.108 R)
• M5: 3,365,354 km (0.116 R)
• M6: 3,798,140 km (0.036 R)
• M7: 4,721,907 km (0.075 R)
• M8: 6,382,743 km (0.119 R)
• M9: 8,907,506 km (0.095 R)
• M10: 9,563,493 km (0.077 R)
• M11: 10,776,731 km (0.097 R)
• M12: 11,522,028 km (0.117 R)
• M13: 14,023,753 km (0.104 R)
• M14: 14,493,341 km (0.113 R)
• M15: 15,033,988 km (0.12 R)
• M16: 17,000,452 km (0.088 R)
• M17: 18,011,135 km (0.072 R)
• M18: 20,600,225 km (0.082 R)
• M19: 22,299,507 km (0.12 R)
• M20: 22,859,303 km (0.12 R)
• M21: 23,840,814 km (0.062 R)
• M22: 26,063,689 km (0.109 R)
• M23: 27,225,466 km (0.032 R)
• M24: 32,423,543 km (0.067 R)
• M25: 34,718,823 km (0.096 R)
• M26: 37,456,464 km (0.089 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 47.6

Radius: 12

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.01 AU - 5.23 AU

Year: 6854 Days

Day: 9.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 94.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,678,293 km

• M1: 149,299 km (0.057 R)
• M2: 665,262 km (0.107 R)
• M3: 1,210,247 km (0.069 R)
• M4: 1,616,255 km (0.118 R)
• M5: 2,714,753 km (0.117 R)
• M6: 5,198,227 km (0.116 R)
• M7: 6,887,935 km (0.109 R)
• M8: 12,156,024 km (0.049 R)
• M9: 14,559,314 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453

Radius: 9.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 5.09 AU - 5.73 AU

Year: 8686 Days

Day: 6.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 77,678,293 km

• M1: 123,867 km (0.045 R)
• M2: 468,989 km (0.1 R)
• M3: 828,323 km (0.106 R)
• M4: 2,970,864 km (0.066 R)
• M5: 3,669,037 km (0.106 R)
• M6: 6,056,919 km (0.097 R)
• M7: 6,849,339 km (0.051 R)
• M8: 7,252,056 km (0.095 R)
• M9: 9,023,744 km (0.045 R)
• M10: 9,643,528 km (0.116 R)
• M11: 11,571,246 km (0.119 R)
• M12: 14,266,850 km (0.111 R)
• M13: 19,234,995 km (0.076 R)
• M14: 20,636,577 km (0.113 R)
• M15: 22,502,661 km (0.116 R)
• M16: 23,476,693 km (0.12 R)
• M17: 25,596,046 km (0.101 R)
• M18: 26,746,902 km (0.111 R)
• M19: 30,504,801 km (0.09 R)
• M20: 33,439,762 km (0.044 R)
• M21: 37,676,673 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.1

Radius: 5.1

Gravity: 36.3 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 6.52 AU - 6.72 AU

Year: 11757 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 77,678,293 km

• M1: 64,776 km (0.068 R)
• M2: 255,812 km (0.068 R)
• M3: 814,261 km (0.05 R)
• M4: 1,002,007 km (0.109 R)
• M5: 1,556,566 km (0.099 R)
• M6: 1,831,826 km (0.058 R)
• M7: 2,786,859 km (0.108 R)
• M8: 4,915,786 km (0.086 R)
• M9: 8,751,176 km (0.101 R)
• M10: 10,101,596 km (0.074 R)
• M11: 10,320,907 km (0.088 R)
• M12: 11,704,837 km (0.065 R)
• M13: 12,254,310 km (0.054 R)
• M14: 12,629,950 km (0.103 R)
• M15: 13,536,513 km (0.051 R)
• M16: 17,519,407 km (0.118 R)
• M17: 18,399,940 km (0.099 R)
• M18: 20,510,466 km (0.097 R)
• M19: 26,429,905 km (0.067 R)
• M20: 26,846,684 km (0.113 R)
• M21: 27,162,186 km (0.106 R)
• M22: 33,031,509 km (0.082 R)
• M23: 34,869,468 km (0.078 R)
• M24: 36,388,036 km (0.08 R)
• M25: 37,686,696 km (0.067 R)
• M26: 52,579,313 km (0.055 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 916.5

Radius: 3.7

Gravity: 66.95 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 8.08 AU - 9.4 AU

Year: 17835 Days

Day: 21.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 77,678,293 km

• M1: 46,076 km (0.075 R)
• M2: 205,099 km (0.096 R)
• M3: 363,972 km (0.074 R)
• M4: 578,495 km (0.106 R)
• M5: 705,055 km (0.108 R)
• M6: 930,349 km (0.07 R)
• M7: 1,442,273 km (0.116 R)
• M8: 2,018,823 km (0.076 R)
• M9: 2,381,149 km (0.102 R)
• M10: 2,711,013 km (0.03 R)
• M11: 3,233,857 km (0.101 R)
• M12: 4,373,494 km (0.106 R)
• M13: 5,554,569 km (0.102 R)
• M14: 8,105,961 km (0.106 R)
• M15: 8,418,620 km (0.062 R)
• M16: 8,631,498 km (0.107 R)
• M17: 9,123,525 km (0.037 R)
• M18: 14,272,235 km (0.068 R)
• M19: 14,574,872 km (0.086 R)
• M20: 14,727,761 km (0.116 R)
• M21: 15,114,770 km (0.095 R)
• M22: 16,898,575 km (0.115 R)
• M23: 18,999,229 km (0.105 R)
• M24: 22,670,660 km (0.103 R)
• M25: 23,709,916 km (0.058 R)
• M26: 23,921,597 km (0.069 R)
• M27: 25,548,923 km (0.088 R)
• M28: 27,248,504 km (0.066 R)
• M29: 28,901,561 km (0.077 R)
• M30: 29,629,953 km (0.111 R)
• M31: 33,191,728 km (0.107 R)
• M32: 33,722,801 km (0.038 R)
• M33: 37,313,299 km (0.109 R)
• M34: 39,348,279 km (0.096 R)
• M35: 43,006,695 km (0.06 R)
• M36: 47,890,467 km (0.102 R)
• M37: 57,397,861 km (0.074 R)
• M38: 58,547,520 km (0.117 R)
• M39: 68,301,750 km (0.097 R)
• M40: 72,443,966 km (0.063 R)
• M41: 72,666,418 km (0.095 R)
• M42: 74,689,879 km (0.114 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 182 - 13,323 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit