🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 172.8

Radius: 12.5

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.5 AU - 0.76 AU

Year: 345 Days

Day: 12.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 164.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 85,633,324 km

• M1: 155,582 km (0.116 R)
• M2: 560,693 km (0.107 R)
• M3: 994,527 km (0.047 R)
• M4: 1,767,200 km (0.112 R)
• M5: 2,223,324 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123

Radius: 8.1

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.75 AU - 0.75 AU

Year: 448 Days

Day: 5.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 92.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 85,633,324 km

• M1: 103,073 km (0.097 R)
• M2: 356,791 km (0.1 R)
• M3: 663,915 km (0.064 R)
• M4: 960,867 km (0.103 R)
• M5: 1,231,938 km (0.081 R)
• M6: 1,503,608 km (0.118 R)
• M7: 1,854,415 km (0.076 R)
• M8: 2,214,796 km (0.095 R)
• M9: 2,621,403 km (0.091 R)
• M10: 3,040,128 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.7

Radius: 9

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.3 AU - 1.66 AU

Year: 1243 Days

Day: 14.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 137 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 85,633,324 km

• M1: 112,348 km (0.106 R)
• M2: 407,355 km (0.072 R)
• M3: 775,067 km (0.095 R)
• M4: 1,610,571 km (0.115 R)
• M5: 1,999,824 km (0.06 R)
• M6: 2,415,108 km (0.07 R)
• M7: 2,793,441 km (0.115 R)
• M8: 3,653,778 km (0.114 R)
• M9: 3,982,595 km (0.052 R)
• M10: 4,331,008 km (0.099 R)
• M11: 5,210,643 km (0.102 R)
• M12: 5,606,928 km (0.101 R)
• M13: 7,017,187 km (0.08 R)
• M14: 7,658,513 km (0.119 R)
• M15: 11,054,684 km (0.102 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.1

Radius: 13.2

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.36 AU - 1.68 AU

Year: 1294 Days

Day: 8.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,633,324 km

• M1: 164,109 km (0.113 R)
• M2: 605,722 km (0.08 R)
• M3: 1,040,902 km (0.091 R)
• M4: 1,704,967 km (0.083 R)
• M5: 2,564,855 km (0.095 R)
• M6: 3,428,035 km (0.076 R)
• M7: 4,152,238 km (0.084 R)
• M8: 5,198,676 km (0.117 R)
• M9: 5,707,458 km (0.039 R)
• M10: 6,133,662 km (0.114 R)
• M11: 6,557,024 km (0.117 R)
• M12: 7,410,630 km (0.083 R)
• M13: 8,565,824 km (0.094 R)
• M14: 9,369,763 km (0.105 R)
• M15: 10,387,029 km (0.056 R)
• M16: 12,195,368 km (0.086 R)
• M17: 12,791,815 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 845.4

Radius: 13.2

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.66 AU - 1.92 AU

Year: 1653 Days

Day: 9 Hours

Environment

Temp: -192 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 85,633,324 km

• M1: 174,282 km (0.026 R)
• M2: 590,463 km (0.097 R)
• M3: 1,122,882 km (0.03 R)
• M4: 1,754,933 km (0.043 R)
• M5: 2,196,695 km (0.099 R)
• M6: 2,898,459 km (0.108 R)
• M7: 3,557,138 km (0.12 R)
• M8: 4,609,410 km (0.092 R)
• M9: 5,464,810 km (0.057 R)
• M10: 6,525,310 km (0.119 R)
• M11: 7,324,013 km (0.053 R)
• M12: 8,550,715 km (0.093 R)
• M13: 9,673,896 km (0.046 R)
• M14: 10,641,495 km (0.091 R)
• M15: 11,222,832 km (0.119 R)
• M16: 14,062,050 km (0.057 R)
• M17: 15,166,980 km (0.045 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.5

Radius: 10.2

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.88 AU - 2.62 AU

Year: 2330 Days

Day: 7.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 85,633,324 km

• M1: 128,804 km (0.114 R)
• M2: 550,221 km (0.096 R)
• M3: 1,466,957 km (0.051 R)
• M4: 1,799,812 km (0.094 R)
• M5: 2,941,094 km (0.113 R)
• M6: 4,342,527 km (0.082 R)
• M7: 4,836,649 km (0.107 R)
• M8: 5,202,416 km (0.03 R)
• M9: 6,041,211 km (0.115 R)
• M10: 6,797,727 km (0.115 R)
• M11: 7,346,153 km (0.051 R)
• M12: 8,531,417 km (0.082 R)
• M13: 9,448,153 km (0.119 R)
• M14: 10,770,897 km (0.088 R)
• M15: 11,678,358 km (0.041 R)
• M16: 12,171,582 km (0.096 R)
• M17: 14,284,951 km (0.097 R)
• M18: 14,896,956 km (0.084 R)
• M19: 16,224,039 km (0.116 R)
• M20: 18,005,301 km (0.05 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 127.4

Radius: 6.5

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 4.95 AU - 6.45 AU

Year: 9393 Days

Day: 19 Hours

Environment

Temp: -229 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 85,633,324 km

• M1: 260,300 km (0.108 R)
• M2: 479,910 km (0.084 R)
• M3: 794,365 km (0.092 R)
• M4: 1,363,435 km (0.085 R)
• M5: 2,355,269 km (0.116 R)
• M6: 3,654,377 km (0.119 R)
• M7: 5,874,260 km (0.113 R)
• M8: 8,162,658 km (0.088 R)
• M9: 8,750,129 km (0.107 R)
• M10: 12,024,527 km (0.059 R)
• M11: 12,736,314 km (0.116 R)
• M12: 16,375,432 km (0.107 R)
• M13: 16,896,032 km (0.118 R)
• M14: 20,786,774 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 582.8

Radius: 6.3

Gravity: 14.68 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 7.63 AU - 9.91 AU

Year: 17927 Days

Day: 17.1 Hours

Environment

Temp: -238 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 85,633,324 km

• M1: 88,263 km (0.12 R)
• M2: 390,151 km (0.045 R)
• M3: 1,728,155 km (0.11 R)
• M4: 2,251,598 km (0.058 R)
• M5: 2,948,724 km (0.101 R)
• M6: 3,201,843 km (0.11 R)
• M7: 5,820,255 km (0.101 R)
• M8: 6,426,276 km (0.098 R)
• M9: 7,208,074 km (0.092 R)
• M10: 7,528,662 km (0.073 R)
• M11: 8,149,194 km (0.099 R)
• M12: 12,346,761 km (0.11 R)
• M13: 13,550,426 km (0.109 R)
• M14: 13,898,241 km (0.056 R)
• M15: 14,903,837 km (0.081 R)
• M16: 18,126,774 km (0.058 R)
• M17: 19,501,279 km (0.051 R)
• M18: 20,034,296 km (0.101 R)
• M19: 25,909,005 km (0.076 R)
• M20: 26,769,941 km (0.042 R)
• M21: 28,548,958 km (0.1 R)
• M22: 34,613,806 km (0.076 R)
• M23: 40,185,728 km (0.067 R)
• M24: 41,193,270 km (0.075 R)
• M25: 42,959,273 km (0.106 R)
• M26: 43,709,805 km (0.094 R)
• M27: 44,928,729 km (0.058 R)
• M28: 47,593,964 km (0.08 R)
• M29: 56,756,535 km (0.1 R)
• M30: 66,027,863 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 642.8

Radius: 4.4

Gravity: 33.2 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 8.47 AU - 9.79 AU

Year: 19042 Days

Day: 23.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 85,633,324 km

• M1: 57,745 km (0.06 R)
• M2: 349,760 km (0.032 R)
• M3: 1,114,205 km (0.116 R)
• M4: 1,350,420 km (0.074 R)
• M5: 1,569,282 km (0.071 R)
• M6: 2,039,019 km (0.094 R)
• M7: 3,277,689 km (0.091 R)
• M8: 3,853,791 km (0.117 R)
• M9: 5,430,253 km (0.105 R)
• M10: 5,742,613 km (0.11 R)
• M11: 6,975,749 km (0.116 R)
• M12: 7,873,336 km (0.104 R)
• M13: 8,845,423 km (0.058 R)
• M14: 9,894,852 km (0.092 R)
• M15: 10,538,871 km (0.052 R)
• M16: 11,398,460 km (0.075 R)
• M17: 12,436,969 km (0.071 R)
• M18: 16,975,918 km (0.105 R)
• M19: 19,296,031 km (0.077 R)
• M20: 20,114,032 km (0.077 R)
• M21: 22,907,024 km (0.084 R)
• M22: 26,057,406 km (0.117 R)
• M23: 26,943,773 km (0.092 R)
• M24: 27,168,469 km (0.114 R)
• M25: 27,850,037 km (0.09 R)
• M26: 30,325,433 km (0.041 R)
• M27: 32,180,746 km (0.079 R)
• M28: 34,903,427 km (0.111 R)
• M29: 36,252,202 km (0.088 R)
• M30: 37,495,510 km (0.098 R)
• M31: 40,359,710 km (0.045 R)
• M32: 40,653,969 km (0.093 R)
• M33: 55,969,051 km (0.1 R)
• M34: 58,375,632 km (0.029 R)
• M35: 58,940,663 km (0.093 R)
• M36: 61,625,646 km (0.097 R)
• M37: 67,237,960 km (0.104 R)
• M38: 68,483,362 km (0.043 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 754.6

Radius: 5.6

Gravity: 24.06 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 7.79 AU - 12.77 AU

Year: 22751 Days

Day: 22.8 Hours

Environment

Temp: -238 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 85,633,324 km

• M1: 69,713 km (0.102 R)
• M2: 1,661,883 km (0.056 R)
• M3: 2,288,698 km (0.079 R)
• M4: 11,023,867 km (0.1 R)
• M5: 11,688,979 km (0.089 R)
• M6: 13,920,531 km (0.107 R)
• M7: 17,732,135 km (0.107 R)
• M8: 23,459,340 km (0.053 R)
• M9: 23,676,257 km (0.068 R)
• M10: 24,893,235 km (0.113 R)
• M11: 27,331,232 km (0.109 R)
• M12: 30,953,295 km (0.115 R)
• M13: 32,006,165 km (0.035 R)
• M14: 40,674,015 km (0.034 R)
• M15: 47,940,433 km (0.053 R)
• M16: 63,912,399 km (0.087 R)
• M17: 67,132,493 km (0.099 R)
• M18: 77,199,233 km (0.061 R)
• M19: 85,121,039 km (0.04 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 224 - 15,733 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit