🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583

Radius: 12.1

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.78 AU - 0.84 AU

Year: 486 Days

Day: 9.9 Hours

Environment

Temp: -162 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 87,581,187 km

• M1: 150,495 km (0.11 R)
• M2: 575,204 km (0.06 R)
• M3: 1,197,830 km (0.051 R)
• M4: 1,755,830 km (0.088 R)
• M5: 2,262,219 km (0.069 R)
• M6: 3,403,651 km (0.084 R)
• M7: 4,896,338 km (0.091 R)
• M8: 5,452,543 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 533.7

Radius: 13.9

Gravity: 2.76 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.01 AU - 1.19 AU

Year: 769 Days

Day: 14.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 87,581,187 km

• M1: 172,935 km (0.064 R)
• M2: 679,922 km (0.063 R)
• M3: 1,251,536 km (0.119 R)
• M4: 1,784,104 km (0.051 R)
• M5: 2,238,283 km (0.118 R)
• M6: 2,827,250 km (0.117 R)
• M7: 3,259,588 km (0.068 R)
• M8: 4,094,793 km (0.118 R)
• M9: 4,983,404 km (0.101 R)
• M10: 5,901,038 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.6

Radius: 14

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.02 AU - 1.24 AU

Year: 801 Days

Day: 6.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 87,581,187 km

• M1: 174,880 km (0.053 R)
• M2: 637,287 km (0.109 R)
• M3: 1,089,521 km (0.095 R)
• M4: 1,660,536 km (0.089 R)
• M5: 3,095,180 km (0.086 R)
• M6: 4,127,405 km (0.104 R)
• M7: 4,710,239 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 133.9

Radius: 10.5

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.02 AU - 1.44 AU

Year: 910 Days

Day: 5.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 87,581,187 km

• M1: 130,749 km (0.113 R)
• M2: 549,473 km (0.107 R)
• M3: 1,317,808 km (0.099 R)
• M4: 1,668,016 km (0.108 R)
• M5: 2,486,616 km (0.099 R)
• M6: 2,850,737 km (0.047 R)
• M7: 3,724,837 km (0.033 R)
• M8: 4,217,912 km (0.036 R)
• M9: 4,695,578 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.9

Radius: 9.2

Gravity: 7.29 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.54 AU - 1.72 AU

Year: 1388 Days

Day: 8.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 87,581,187 km

• M1: 114,442 km (0.072 R)
• M2: 429,944 km (0.114 R)
• M3: 821,442 km (0.12 R)
• M4: 1,154,447 km (0.083 R)
• M5: 1,465,461 km (0.063 R)
• M6: 2,018,075 km (0.105 R)
• M7: 2,415,108 km (0.104 R)
• M8: 2,796,283 km (0.116 R)
• M9: 3,553,099 km (0.111 R)
• M10: 4,135,184 km (0.072 R)
• M11: 5,055,510 km (0.086 R)
• M12: 6,015,630 km (0.113 R)
• M13: 7,348,547 km (0.088 R)
• M14: 8,015,604 km (0.108 R)
• M15: 8,549,070 km (0.065 R)
• M16: 9,016,413 km (0.075 R)
• M17: 10,324,796 km (0.107 R)
• M18: 12,187,439 km (0.078 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 940.5

Radius: 8.2

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.28 AU - 3.82 AU

Year: 4460 Days

Day: 11.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 87,581,187 km

• M1: 102,026 km (0.112 R)
• M2: 479,162 km (0.106 R)
• M3: 819,497 km (0.07 R)
• M4: 1,277,865 km (0.094 R)
• M5: 1,634,207 km (0.104 R)
• M6: 1,926,671 km (0.038 R)
• M7: 3,080,071 km (0.114 R)
• M8: 3,976,760 km (0.106 R)
• M9: 5,010,332 km (0.073 R)
• M10: 7,853,140 km (0.059 R)
• M11: 8,773,167 km (0.083 R)
• M12: 9,300,649 km (0.08 R)
• M13: 10,553,382 km (0.051 R)
• M14: 12,919,721 km (0.116 R)
• M15: 17,445,056 km (0.059 R)
• M16: 17,762,653 km (0.051 R)
• M17: 19,273,741 km (0.074 R)
• M18: 22,549,785 km (0.113 R)
• M19: 23,538,926 km (0.085 R)
• M20: 29,546,477 km (0.09 R)
• M21: 29,907,457 km (0.064 R)
• M22: 30,546,090 km (0.119 R)
• M23: 31,100,799 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.6

Radius: 5.6

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.45 AU - 8.97 AU

Year: 14276 Days

Day: 21.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 23.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 87,581,187 km

• M1: 69,713 km (0.063 R)
• M2: 256,560 km (0.099 R)
• M3: 694,284 km (0.049 R)
• M4: 892,950 km (0.09 R)
• M5: 1,071,121 km (0.109 R)
• M6: 1,814,473 km (0.075 R)
• M7: 2,239,331 km (0.12 R)
• M8: 4,829,318 km (0.116 R)
• M9: 5,090,666 km (0.118 R)
• M10: 5,538,562 km (0.111 R)
• M11: 7,161,400 km (0.08 R)
• M12: 8,518,103 km (0.069 R)
• M13: 9,512,480 km (0.1 R)
• M14: 12,598,085 km (0.092 R)
• M15: 13,093,703 km (0.033 R)
• M16: 14,906,381 km (0.109 R)
• M17: 20,339,925 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 811.7

Radius: 6.9

Gravity: 17.05 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 8.35 AU - 12.65 AU

Year: 22689 Days

Day: 20.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 87,581,187 km

• M1: 107,710 km (0.095 R)
• M2: 336,296 km (0.058 R)
• M3: 648,806 km (0.112 R)
• M4: 1,109,268 km (0.114 R)
• M5: 1,536,669 km (0.099 R)
• M6: 1,965,716 km (0.084 R)
• M7: 2,197,742 km (0.111 R)
• M8: 2,667,180 km (0.112 R)
• M9: 3,316,734 km (0.11 R)
• M10: 3,647,495 km (0.111 R)
• M11: 4,553,759 km (0.099 R)
• M12: 6,072,028 km (0.035 R)
• M13: 6,945,680 km (0.031 R)
• M14: 7,744,083 km (0.073 R)
• M15: 9,883,483 km (0.099 R)
• M16: 11,898,117 km (0.045 R)
• M17: 12,746,636 km (0.111 R)
• M18: 13,710,645 km (0.117 R)
• M19: 14,484,664 km (0.104 R)
• M20: 17,964,311 km (0.112 R)
• M21: 18,702,726 km (0.098 R)
• M22: 19,269,702 km (0.078 R)
• M23: 20,338,878 km (0.117 R)
• M24: 23,022,215 km (0.078 R)
• M25: 24,003,427 km (0.105 R)
• M26: 26,637,546 km (0.12 R)
• M27: 36,997,947 km (0.101 R)
• M28: 40,030,296 km (0.12 R)
• M29: 42,087,865 km (0.095 R)
• M30: 43,060,849 km (0.105 R)
• M31: 44,381,350 km (0.111 R)
• M32: 45,220,295 km (0.025 R)
• M33: 48,327,891 km (0.095 R)
• M34: 49,037,434 km (0.106 R)
• M35: 62,812,705 km (0.067 R)
• M36: 65,802,718 km (0.105 R)
• M37: 74,629,441 km (0.077 R)
• M38: 80,932,448 km (0.106 R)
• M39: 83,957,616 km (0.119 R)
• M40: 87,581,176 km (0.218 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: 415 - 13,311 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit