🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 76.4

Radius: 14.1

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.47 AU - 0.55 AU

Year: 256 Days

Day: 13.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 81,950,077 km

• M1: 175,628 km (0.069 R)
• M2: 675,285 km (0.072 R)
• M3: 1,125,874 km (0.089 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.6

Radius: 9.2

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.67 AU - 0.89 AU

Year: 484 Days

Day: 12.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 81,950,077 km

• M1: 114,442 km (0.095 R)
• M2: 437,574 km (0.068 R)
• M3: 732,282 km (0.115 R)
• M4: 1,074,113 km (0.091 R)
• M5: 1,474,885 km (0.113 R)
• M6: 2,358,560 km (0.103 R)
• M7: 3,124,800 km (0.036 R)
• M8: 3,661,109 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 903

Radius: 10.2

Gravity: 8.68 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 0.91 AU - 1.01 AU

Year: 661 Days

Day: 12.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,950,077 km

• M1: 126,859 km (0.114 R)
• M2: 515,365 km (0.079 R)
• M3: 893,249 km (0.092 R)
• M4: 1,366,128 km (0.104 R)
• M5: 1,919,341 km (0.058 R)
• M6: 2,420,045 km (0.101 R)
• M7: 3,006,169 km (0.07 R)
• M8: 3,326,757 km (0.101 R)
• M9: 4,222,549 km (0.062 R)
• M10: 4,626,464 km (0.083 R)
• M11: 4,950,493 km (0.051 R)
• M12: 5,400,184 km (0.06 R)
• M13: 6,507,208 km (0.11 R)
• M14: 7,340,319 km (0.101 R)
• M15: 8,267,676 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.6

Radius: 11.8

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.9 AU - 1.26 AU

Year: 789 Days

Day: 9.6 Hours

Environment

Temp: -185 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,950,077 km

• M1: 146,756 km (0.045 R)
• M2: 527,632 km (0.059 R)
• M3: 902,225 km (0.109 R)
• M4: 1,281,156 km (0.099 R)
• M5: 1,752,389 km (0.109 R)
• M6: 2,565,753 km (0.108 R)
• M7: 3,434,318 km (0.106 R)
• M8: 3,877,577 km (0.1 R)
• M9: 4,555,854 km (0.118 R)
• M10: 5,128,664 km (0.053 R)
• M11: 6,546,552 km (0.114 R)
• M12: 7,818,434 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 427.6

Radius: 14.5

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 1.12 AU - 1.46 AU

Year: 1030 Days

Day: 13.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 41.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,950,077 km

• M1: 180,265 km (0.05 R)
• M2: 703,559 km (0.105 R)
• M3: 1,218,026 km (0.101 R)
• M4: 1,955,244 km (0.082 R)
• M5: 2,428,123 km (0.097 R)
• M6: 3,284,122 km (0.089 R)
• M7: 3,740,096 km (0.109 R)
• M8: 4,696,326 km (0.046 R)
• M9: 5,408,262 km (0.05 R)
• M10: 6,008,598 km (0.084 R)
• M11: 7,026,313 km (0.101 R)
• M12: 7,600,320 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.1

Radius: 8.1

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.11 AU - 2.11 AU

Year: 2154 Days

Day: 13.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 81,950,077 km

• M1: 100,829 km (0.072 R)
• M2: 649,255 km (0.093 R)
• M3: 1,300,903 km (0.073 R)
• M4: 1,694,196 km (0.084 R)
• M5: 2,153,611 km (0.109 R)
• M6: 2,945,432 km (0.053 R)
• M7: 3,661,408 km (0.082 R)
• M8: 4,605,071 km (0.034 R)
• M9: 7,147,337 km (0.063 R)
• M10: 7,578,030 km (0.115 R)
• M11: 8,791,418 km (0.079 R)
• M12: 9,734,184 km (0.084 R)
• M13: 10,263,760 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 344.9

Radius: 4.7

Gravity: 15.61 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 7.25 AU - 7.43 AU

Year: 13978 Days

Day: 24.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 81,950,077 km

• M1: 58,493 km (0.026 R)
• M2: 395,387 km (0.109 R)
• M3: 905,067 km (0.093 R)
• M4: 1,172,249 km (0.091 R)
• M5: 1,436,140 km (0.032 R)
• M6: 1,604,138 km (0.094 R)
• M7: 1,979,928 km (0.111 R)
• M8: 2,135,061 km (0.038 R)
• M9: 3,388,392 km (0.032 R)
• M10: 3,535,895 km (0.082 R)
• M11: 4,004,735 km (0.114 R)
• M12: 4,311,111 km (0.081 R)
• M13: 4,784,290 km (0.064 R)
• M14: 5,161,426 km (0.103 R)
• M15: 5,524,201 km (0.08 R)
• M16: 7,766,224 km (0.102 R)
• M17: 10,138,846 km (0.099 R)
• M18: 10,866,041 km (0.114 R)
• M19: 12,716,567 km (0.042 R)
• M20: 13,872,211 km (0.066 R)
• M21: 15,162,343 km (0.095 R)
• M22: 15,700,147 km (0.063 R)
• M23: 17,100,084 km (0.116 R)
• M24: 17,904,472 km (0.104 R)
• M25: 20,631,641 km (0.11 R)
• M26: 22,653,905 km (0.052 R)
• M27: 23,623,299 km (0.105 R)
• M28: 30,343,684 km (0.083 R)
• M29: 37,498,950 km (0.112 R)
• M30: 37,987,836 km (0.114 R)
• M31: 46,679,772 km (0.066 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766.2

Radius: 7.8

Gravity: 12.59 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 8.39 AU - 10.95 AU

Year: 21137 Days

Day: 18.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 81,950,077 km

• M1: 96,939 km (0.081 R)
• M2: 390,151 km (0.067 R)
• M3: 685,457 km (0.102 R)
• M4: 1,376,001 km (0.079 R)
• M5: 3,636,575 km (0.087 R)
• M6: 5,454,338 km (0.072 R)
• M7: 5,821,302 km (0.05 R)
• M8: 6,604,896 km (0.081 R)
• M9: 7,022,124 km (0.107 R)
• M10: 7,655,821 km (0.061 R)
• M11: 9,262,951 km (0.106 R)
• M12: 9,609,569 km (0.114 R)
• M13: 10,267,351 km (0.105 R)
• M14: 11,739,543 km (0.114 R)
• M15: 12,772,217 km (0.107 R)
• M16: 13,715,282 km (0.103 R)
• M17: 14,860,155 km (0.118 R)
• M18: 15,255,692 km (0.117 R)
• M19: 17,954,587 km (0.071 R)
• M20: 18,493,887 km (0.096 R)
• M21: 21,453,831 km (0.056 R)
• M22: 22,679,785 km (0.089 R)
• M23: 24,168,284 km (0.042 R)
• M24: 25,947,900 km (0.083 R)
• M25: 27,456,894 km (0.103 R)
• M26: 27,813,236 km (0.092 R)
• M27: 38,642,476 km (0.077 R)
• M28: 39,240,120 km (0.12 R)
• M29: 39,692,354 km (0.053 R)
• M30: 43,436,191 km (0.108 R)
• M31: 44,244,767 km (0.087 R)
• M32: 45,063,217 km (0.103 R)
• M33: 46,058,791 km (0.085 R)
• M34: 48,785,062 km (0.097 R)
• M35: 49,658,714 km (0.119 R)
• M36: 51,078,099 km (0.064 R)
• M37: 56,258,822 km (0.099 R)
• M38: 60,166,618 km (0.047 R)
• M39: 65,300,967 km (0.074 R)
• M40: 71,389,749 km (0.109 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 19,367 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit