🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 91.8

Radius: 12.2

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.66 AU - 0.68 AU

Year: 366 Days

Day: 12.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 85,143,370 km

• M1: 151,692 km (0.03 R)
• M2: 599,738 km (0.038 R)
• M3: 1,289,234 km (0.109 R)
• M4: 1,679,834 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.4

Radius: 14.4

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.39 AU - 1.79 AU

Year: 1337 Days

Day: 13.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 11 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 85,143,370 km

• M1: 179,817 km (0.1 R)
• M2: 632,051 km (0.073 R)
• M3: 1,347,727 km (0.07 R)
• M4: 1,945,221 km (0.078 R)
• M5: 2,590,736 km (0.061 R)
• M6: 3,688,635 km (0.12 R)
• M7: 4,573,955 km (0.103 R)
• M8: 5,426,812 km (0.062 R)
• M9: 6,220,429 km (0.086 R)
• M10: 7,268,661 km (0.11 R)
• M11: 9,072,662 km (0.085 R)
• M12: 10,289,641 km (0.118 R)
• M13: 11,228,517 km (0.117 R)
• M14: 12,593,298 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 950.2

Radius: 13.2

Gravity: 5.45 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 1.47 AU - 2.31 AU

Year: 1733 Days

Day: 10.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 85,143,370 km

• M1: 164,109 km (0.078 R)
• M2: 617,241 km (0.071 R)
• M3: 1,132,456 km (0.098 R)
• M4: 1,683,275 km (0.087 R)
• M5: 2,111,424 km (0.098 R)
• M6: 4,046,922 km (0.112 R)
• M7: 4,537,453 km (0.047 R)
• M8: 5,977,632 km (0.089 R)
• M9: 7,300,376 km (0.053 R)
• M10: 8,091,450 km (0.054 R)
• M11: 9,706,957 km (0.035 R)
• M12: 11,184,685 km (0.038 R)
• M13: 13,871,313 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 52.6

Radius: 13.8

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.55 AU - 2.29 AU

Year: 1774 Days

Day: 14.7 Hours

Environment

Temp: -191 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 85,143,370 km

• M1: 171,738 km (0.117 R)
• M2: 655,687 km (0.107 R)
• M3: 1,103,733 km (0.063 R)
• M4: 2,291,690 km (0.11 R)
• M5: 3,120,013 km (0.101 R)
• M6: 5,338,699 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 543.9

Radius: 11.7

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 3.16 AU - 3.86 AU

Year: 4385 Days

Day: 12.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 46.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 85,143,370 km

• M1: 146,456 km (0.09 R)
• M2: 572,960 km (0.115 R)
• M3: 996,023 km (0.086 R)
• M4: 1,384,229 km (0.071 R)
• M5: 1,775,876 km (0.091 R)
• M6: 2,345,246 km (0.11 R)
• M7: 2,790,299 km (0.057 R)
• M8: 3,665,746 km (0.085 R)
• M9: 4,046,323 km (0.083 R)
• M10: 4,523,989 km (0.051 R)
• M11: 5,141,529 km (0.089 R)
• M12: 5,511,485 km (0.116 R)
• M13: 6,216,689 km (0.046 R)
• M14: 7,271,205 km (0.071 R)
• M15: 7,772,806 km (0.102 R)
• M16: 9,033,767 km (0.104 R)
• M17: 9,933,598 km (0.073 R)
• M18: 12,049,211 km (0.108 R)
• M19: 13,188,099 km (0.062 R)
• M20: 13,935,640 km (0.051 R)
• M21: 16,689,886 km (0.113 R)
• M22: 17,152,593 km (0.108 R)
• M23: 17,922,872 km (0.072 R)
• M24: 19,596,124 km (0.109 R)
• M25: 21,986,249 km (0.071 R)
• M26: 23,037,175 km (0.071 R)
• M27: 23,466,820 km (0.105 R)
• M28: 24,788,068 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 521.3

Radius: 12.9

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 4 AU - 4.3 AU

Year: 5638 Days

Day: 11.2 Hours

Environment

Temp: -217 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 85,143,370 km

• M1: 163,062 km (0.099 R)
• M2: 641,476 km (0.085 R)
• M3: 1,053,917 km (0.038 R)
• M4: 1,726,958 km (0.067 R)
• M5: 2,222,725 km (0.117 R)
• M6: 2,778,032 km (0.103 R)
• M7: 3,763,284 km (0.052 R)
• M8: 5,129,561 km (0.115 R)
• M9: 7,658,962 km (0.059 R)
• M10: 10,175,498 km (0.042 R)
• M11: 13,880,887 km (0.077 R)
• M12: 15,598,570 km (0.091 R)
• M13: 16,240,943 km (0.051 R)
• M14: 19,519,530 km (0.105 R)
• M15: 20,890,445 km (0.038 R)
• M16: 21,599,389 km (0.095 R)
• M17: 22,471,395 km (0.06 R)
• M18: 24,208,227 km (0.071 R)
• M19: 28,032,995 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.6

Radius: 10.9

Gravity: 4.62 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 4.63 AU - 5.21 AU

Year: 7277 Days

Day: 14 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,143,370 km

• M1: 137,032 km (0.109 R)
• M2: 1,246,300 km (0.115 R)
• M3: 2,135,510 km (0.094 R)
• M4: 4,279,546 km (0.088 R)
• M5: 6,104,790 km (0.092 R)
• M6: 8,440,611 km (0.117 R)
• M7: 9,629,316 km (0.056 R)
• M8: 11,617,172 km (0.073 R)
• M9: 12,654,035 km (0.089 R)
• M10: 14,911,467 km (0.09 R)
• M11: 17,425,160 km (0.088 R)
• M12: 22,325,388 km (0.117 R)
• M13: 23,196,047 km (0.112 R)
• M14: 34,007,635 km (0.103 R)
• M15: 34,528,236 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 409

Radius: 3.4

Gravity: 35.38 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 4.87 AU - 7.47 AU

Year: 10220 Days

Day: 18.4 Hours

Environment

Temp: -237 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 85,143,370 km

• M1: 42,486 km (0.056 R)
• M2: 159,471 km (0.118 R)
• M3: 426,653 km (0.091 R)
• M4: 546,631 km (0.089 R)
• M5: 681,568 km (0.076 R)
• M6: 1,135,897 km (0.117 R)
• M7: 2,945,133 km (0.042 R)
• M8: 3,527,219 km (0.085 R)
• M9: 3,671,730 km (0.08 R)
• M10: 4,050,362 km (0.109 R)
• M11: 4,316,946 km (0.03 R)
• M12: 4,623,472 km (0.06 R)
• M13: 5,469,149 km (0.073 R)
• M14: 5,662,878 km (0.119 R)
• M15: 6,132,914 km (0.084 R)
• M16: 6,628,382 km (0.117 R)
• M17: 7,036,037 km (0.116 R)
• M18: 8,316,894 km (0.109 R)
• M19: 10,766,708 km (0.055 R)
• M20: 11,964,987 km (0.118 R)
• M21: 12,736,314 km (0.101 R)
• M22: 12,849,111 km (0.106 R)
• M23: 13,657,837 km (0.118 R)
• M24: 15,121,951 km (0.088 R)
• M25: 15,957,156 km (0.065 R)
• M26: 16,352,842 km (0.044 R)
• M27: 16,620,174 km (0.031 R)
• M28: 17,509,234 km (0.075 R)
• M29: 22,516,574 km (0.059 R)
• M30: 24,725,686 km (0.099 R)
• M31: 27,543,212 km (0.066 R)
• M32: 32,526,018 km (0.09 R)
• M33: 33,805,379 km (0.084 R)
• M34: 40,952,716 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.3

Radius: 6.8

Gravity: 17.33 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 7.3 AU - 7.32 AU

Year: 13180 Days

Day: 20.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 85,143,370 km

• M1: 84,972 km (0.088 R)
• M2: 332,855 km (0.116 R)
• M3: 775,216 km (0.079 R)
• M4: 1,150,108 km (0.109 R)
• M5: 1,373,159 km (0.074 R)
• M6: 1,771,089 km (0.045 R)
• M7: 2,204,474 km (0.076 R)
• M8: 2,595,822 km (0.119 R)
• M9: 3,333,190 km (0.107 R)
• M10: 4,804,635 km (0.057 R)
• M11: 5,284,246 km (0.106 R)
• M12: 6,180,337 km (0.114 R)
• M13: 6,419,245 km (0.112 R)
• M14: 7,708,479 km (0.086 R)
• M15: 7,939,009 km (0.057 R)
• M16: 8,221,749 km (0.051 R)
• M17: 11,430,923 km (0.12 R)
• M18: 12,663,161 km (0.042 R)
• M19: 14,674,055 km (0.045 R)
• M20: 20,525,277 km (0.075 R)
• M21: 25,052,707 km (0.067 R)
• M22: 26,073,114 km (0.118 R)
• M23: 30,203,660 km (0.114 R)
• M24: 30,547,287 km (0.094 R)
• M25: 32,185,084 km (0.081 R)
• M26: 36,018,530 km (0.063 R)
• M27: 36,275,838 km (0.092 R)
• M28: 37,978,112 km (0.103 R)
• M29: 38,378,436 km (0.091 R)
• M30: 42,108,509 km (0.103 R)
• M31: 45,320,974 km (0.072 R)
• M32: 49,482,338 km (0.078 R)
• M33: 53,055,782 km (0.071 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.7

Radius: 7.6

Gravity: 13.88 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 8.56 AU - 11.94 AU

Year: 21883 Days

Day: 18.4 Hours

Environment

Temp: -236 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 85,143,370 km

• M1: 106,514 km (0.097 R)
• M2: 542,591 km (0.112 R)
• M3: 904,918 km (0.085 R)
• M4: 1,285,046 km (0.095 R)
• M5: 1,805,945 km (0.112 R)
• M6: 3,206,780 km (0.084 R)
• M7: 3,964,194 km (0.107 R)
• M8: 4,761,251 km (0.08 R)
• M9: 8,372,843 km (0.084 R)
• M10: 9,737,325 km (0.069 R)
• M11: 11,113,027 km (0.092 R)
• M12: 21,563,935 km (0.082 R)
• M13: 25,903,769 km (0.068 R)
• M14: 36,551,697 km (0.113 R)
• M15: 53,252,354 km (0.102 R)
• M16: 53,813,795 km (0.106 R)
• M17: 65,033,785 km (0.097 R)
• M18: 73,938,299 km (0.061 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 270 - 10,819 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit