🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.5

Radius: 13.7

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.65 AU - 0.77 AU

Year: 413 Days

Day: 12.9 Hours

Environment

Temp: -158 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 69,174,849 km

• M1: 170,392 km (0.05 R)
• M2: 919,279 km (0.09 R)
• M3: 1,435,840 km (0.119 R)
• M4: 2,122,644 km (0.074 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.2

Radius: 12.5

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.83 AU - 1.17 AU

Year: 690 Days

Day: 13.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 69,174,849 km

• M1: 174,581 km (0.063 R)
• M2: 606,470 km (0.118 R)
• M3: 995,424 km (0.101 R)
• M4: 1,519,166 km (0.115 R)
• M5: 1,982,471 km (0.097 R)
• M6: 2,756,790 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 703.6

Radius: 12.4

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.9 AU - 1.28 AU

Year: 786 Days

Day: 6.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 69,174,849 km

• M1: 154,385 km (0.098 R)
• M2: 592,108 km (0.086 R)
• M3: 1,053,319 km (0.033 R)
• M4: 1,534,276 km (0.108 R)
• M5: 1,926,222 km (0.1 R)
• M6: 2,870,783 km (0.094 R)
• M7: 3,340,221 km (0.097 R)
• M8: 4,056,496 km (0.089 R)
• M9: 4,583,529 km (0.107 R)
• M10: 5,030,677 km (0.116 R)
• M11: 7,052,642 km (0.092 R)
• M12: 7,650,884 km (0.12 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 21.7

Radius: 12

Gravity: 0.15 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.47 AU - 2.31 AU

Year: 1794 Days

Day: 5 Hours

Environment

Temp: -208 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 69,174,849 km

• M1: 224,995 km (0.089 R)
• M2: 650,152 km (0.107 R)
• M3: 1,118,992 km (0.103 R)
• M4: 1,836,314 km (0.061 R)
• M5: 4,428,546 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.3

Radius: 13.3

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.11 AU - 3.25 AU

Year: 3914 Days

Day: 5.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 69,174,849 km

• M1: 165,754 km (0.103 R)
• M2: 800,049 km (0.082 R)
• M3: 1,365,978 km (0.036 R)
• M4: 2,407,329 km (0.109 R)
• M5: 4,501,699 km (0.068 R)
• M6: 5,600,795 km (0.109 R)
• M7: 6,584,101 km (0.092 R)
• M8: 7,998,400 km (0.104 R)
• M9: 12,360,973 km (0.089 R)
• M10: 12,800,641 km (0.039 R)
• M11: 16,061,426 km (0.076 R)
• M12: 19,906,241 km (0.115 R)
• M13: 22,544,399 km (0.056 R)
• M14: 24,022,725 km (0.117 R)
• M15: 27,418,597 km (0.114 R)
• M16: 27,916,608 km (0.091 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.5

Radius: 13.6

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 2.94 AU - 3.64 AU

Year: 4119 Days

Day: 7.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 31.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,174,849 km

• M1: 169,195 km (0.108 R)
• M2: 657,183 km (0.114 R)
• M3: 1,251,985 km (0.092 R)
• M4: 2,107,984 km (0.079 R)
• M5: 2,749,908 km (0.048 R)
• M6: 3,669,636 km (0.112 R)
• M7: 4,867,167 km (0.084 R)
• M8: 5,996,631 km (0.109 R)
• M9: 7,879,619 km (0.096 R)
• M10: 10,096,061 km (0.054 R)
• M11: 11,926,241 km (0.091 R)
• M12: 12,820,238 km (0.113 R)
• M13: 13,633,602 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.9

Radius: 14.5

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 2.82 AU - 4.1 AU

Year: 4442 Days

Day: 7.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,174,849 km

• M1: 180,415 km (0.076 R)
• M2: 1,025,493 km (0.027 R)
• M3: 1,820,157 km (0.078 R)
• M4: 4,499,904 km (0.056 R)
• M5: 6,037,920 km (0.106 R)
• M6: 8,625,065 km (0.091 R)
• M7: 9,772,032 km (0.114 R)
• M8: 14,230,647 km (0.084 R)
• M9: 14,875,414 km (0.029 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 687.5

Radius: 3.1

Gravity: 71.54 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.94 AU - 6.44 AU

Year: 10630 Days

Day: 16 Hours

Environment

Temp: -229 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 69,174,849 km

• M1: 40,391 km (0.119 R)
• M2: 181,612 km (0.041 R)
• M3: 375,790 km (0.106 R)
• M4: 507,735 km (0.042 R)
• M5: 622,776 km (0.054 R)
• M6: 968,048 km (0.107 R)
• M7: 1,100,143 km (0.081 R)
• M8: 1,307,785 km (0.119 R)
• M9: 1,483,861 km (0.09 R)
• M10: 2,507,560 km (0.081 R)
• M11: 2,844,753 km (0.081 R)
• M12: 3,430,878 km (0.049 R)
• M13: 4,322,481 km (0.105 R)
• M14: 5,493,683 km (0.059 R)
• M15: 6,096,712 km (0.113 R)
• M16: 6,548,048 km (0.119 R)
• M17: 6,703,331 km (0.053 R)
• M18: 7,390,883 km (0.092 R)
• M19: 7,644,451 km (0.095 R)
• M20: 8,035,500 km (0.078 R)
• M21: 10,296,971 km (0.116 R)
• M22: 10,613,071 km (0.072 R)
• M23: 10,935,754 km (0.088 R)
• M24: 12,587,614 km (0.037 R)
• M25: 12,767,430 km (0.1 R)
• M26: 13,009,928 km (0.067 R)
• M27: 14,333,421 km (0.092 R)
• M28: 15,128,683 km (0.114 R)
• M29: 15,468,420 km (0.106 R)
• M30: 17,540,650 km (0.118 R)
• M31: 19,549,450 km (0.097 R)
• M32: 20,115,229 km (0.09 R)
• M33: 22,138,390 km (0.107 R)
• M34: 25,135,733 km (0.087 R)
• M35: 28,495,402 km (0.102 R)
• M36: 29,013,460 km (0.111 R)
• M37: 35,488,804 km (0.029 R)
• M38: 43,543,003 km (0.083 R)
• M39: 46,476,468 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844

Radius: 6.3

Gravity: 21.26 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 6.79 AU - 9.21 AU

Year: 15619 Days

Day: 24.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 69,174,849 km

• M1: 78,688 km (0.081 R)
• M2: 372,050 km (0.11 R)
• M3: 765,044 km (0.059 R)
• M4: 2,217,489 km (0.051 R)
• M5: 2,428,422 km (0.094 R)
• M6: 3,438,357 km (0.059 R)
• M7: 3,899,867 km (0.066 R)
• M8: 4,145,656 km (0.104 R)
• M9: 4,736,717 km (0.081 R)
• M10: 4,981,310 km (0.118 R)
• M11: 5,308,032 km (0.06 R)
• M12: 7,160,951 km (0.032 R)
• M13: 8,059,136 km (0.073 R)
• M14: 11,954,665 km (0.054 R)
• M15: 15,152,918 km (0.052 R)
• M16: 17,191,638 km (0.062 R)
• M17: 19,673,616 km (0.081 R)
• M18: 25,654,090 km (0.034 R)
• M19: 28,764,529 km (0.103 R)
• M20: 28,995,807 km (0.096 R)
• M21: 35,989,059 km (0.12 R)
• M22: 37,208,581 km (0.051 R)
• M23: 41,619,923 km (0.112 R)
• M24: 47,487,450 km (0.116 R)
• M25: 48,953,659 km (0.064 R)
• M26: 53,532,850 km (0.049 R)
• M27: 58,574,747 km (0.075 R)
• M28: 62,557,491 km (0.077 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: 246 - 12,252 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit