🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.18

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 0.47 AU - 0.77 AU

Year: 315 Days

Day: 23.1 Hours

Environment

Temp: -136 °C

Axial Tilt: 11.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 584.6

Radius: 14.9

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.62 AU - 0.78 AU

Year: 378 Days

Day: 8.5 Hours

Environment

Temp: -139 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,056,803 km

• M1: 185,352 km (0.087 R)
• M2: 731,234 km (0.103 R)
• M3: 1,235,828 km (0.09 R)
• M4: 1,717,234 km (0.033 R)
• M5: 2,628,734 km (0.103 R)
• M6: 3,380,613 km (0.069 R)
• M7: 4,004,585 km (0.048 R)
• M8: 4,649,502 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.9

Radius: 12.6

Gravity: 3.46 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.9 AU - 0.98 AU

Year: 588 Days

Day: 11.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,056,803 km

• M1: 156,928 km (0.098 R)
• M2: 760,256 km (0.072 R)
• M3: 1,613,563 km (0.114 R)
• M4: 2,117,707 km (0.105 R)
• M5: 2,551,392 km (0.04 R)
• M6: 2,999,288 km (0.028 R)
• M7: 3,400,360 km (0.113 R)
• M8: 5,431,450 km (0.095 R)
• M9: 5,868,724 km (0.111 R)
• M10: 6,520,822 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 586.2

Radius: 13.9

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.87 AU - 1.25 AU

Year: 705 Days

Day: 7.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 69,056,803 km

• M1: 172,935 km (0.071 R)
• M2: 662,270 km (0.083 R)
• M3: 1,449,603 km (0.092 R)
• M4: 2,305,902 km (0.037 R)
• M5: 2,810,196 km (0.101 R)
• M6: 3,465,734 km (0.119 R)
• M7: 4,162,262 km (0.058 R)
• M8: 4,934,037 km (0.063 R)
• M9: 5,743,511 km (0.094 R)
• M10: 6,357,760 km (0.08 R)
• M11: 7,251,906 km (0.026 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 327.6

Radius: 10.5

Gravity: 2.97 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.86 AU - 2.3 AU

Year: 1937 Days

Day: 10.8 Hours

Environment

Temp: -191 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,056,803 km

• M1: 131,347 km (0.051 R)
• M2: 529,876 km (0.117 R)
• M3: 1,050,626 km (0.114 R)
• M4: 1,618,499 km (0.096 R)
• M5: 1,989,801 km (0.108 R)
• M6: 3,104,455 km (0.116 R)
• M7: 3,493,858 km (0.045 R)
• M8: 4,353,448 km (0.038 R)
• M9: 5,517,469 km (0.078 R)
• M10: 6,977,394 km (0.111 R)
• M11: 7,334,185 km (0.096 R)
• M12: 7,864,958 km (0.068 R)
• M13: 8,251,519 km (0.111 R)
• M14: 9,990,744 km (0.117 R)
• M15: 11,998,048 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.2

Radius: 15

Gravity: 3.13 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 2.24 AU - 2.4 AU

Year: 2282 Days

Day: 8.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,056,803 km

• M1: 191,934 km (0.109 R)
• M2: 734,974 km (0.063 R)
• M3: 1,483,412 km (0.102 R)
• M4: 2,127,731 km (0.096 R)
• M5: 2,956,204 km (0.086 R)
• M6: 3,586,759 km (0.079 R)
• M7: 4,367,211 km (0.1 R)
• M8: 8,938,024 km (0.066 R)
• M9: 10,561,759 km (0.051 R)
• M10: 11,248,114 km (0.055 R)
• M11: 12,752,770 km (0.055 R)
• M12: 16,159,263 km (0.049 R)
• M13: 17,435,781 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.1

Radius: 8.6

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 3.61 AU - 5.53 AU

Year: 6308 Days

Day: 11.5 Hours

Environment

Temp: -222 °C

Axial Tilt: 38.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,056,803 km

• M1: 107,262 km (0.118 R)
• M2: 394,490 km (0.049 R)
• M3: 671,246 km (0.055 R)
• M4: 2,116,660 km (0.066 R)
• M5: 3,235,652 km (0.117 R)
• M6: 3,660,211 km (0.082 R)
• M7: 4,345,519 km (0.043 R)
• M8: 4,953,335 km (0.11 R)
• M9: 5,766,100 km (0.049 R)
• M10: 6,499,878 km (0.106 R)
• M11: 7,003,724 km (0.099 R)
• M12: 7,654,474 km (0.102 R)
• M13: 8,573,155 km (0.114 R)
• M14: 9,317,853 km (0.112 R)
• M15: 9,741,813 km (0.081 R)
• M16: 10,439,239 km (0.077 R)
• M17: 11,169,725 km (0.119 R)
• M18: 15,684,888 km (0.109 R)
• M19: 17,109,508 km (0.061 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 441.2

Radius: 5.1

Gravity: 16.96 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.02 AU - 8.12 AU

Year: 10873 Days

Day: 24.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 135.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 69,056,803 km

• M1: 64,776 km (0.11 R)
• M2: 252,671 km (0.049 R)
• M3: 595,250 km (0.093 R)
• M4: 1,429,557 km (0.062 R)
• M5: 2,499,780 km (0.088 R)
• M6: 2,839,816 km (0.034 R)
• M7: 4,099,730 km (0.096 R)
• M8: 7,414,968 km (0.063 R)
• M9: 8,547,274 km (0.065 R)
• M10: 9,694,391 km (0.114 R)
• M11: 9,887,073 km (0.058 R)
• M12: 11,096,871 km (0.096 R)
• M13: 12,686,498 km (0.093 R)
• M14: 13,033,415 km (0.103 R)
• M15: 13,989,346 km (0.105 R)
• M16: 15,773,151 km (0.066 R)
• M17: 21,942,118 km (0.117 R)
• M18: 24,606,157 km (0.089 R)
• M19: 26,154,794 km (0.1 R)
• M20: 27,382,095 km (0.063 R)
• M21: 28,647,244 km (0.109 R)
• M22: 29,444,900 km (0.112 R)
• M23: 29,950,840 km (0.061 R)
• M24: 39,218,877 km (0.03 R)
• M25: 41,579,980 km (0.038 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 500.3

Radius: 7.5

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 6.95 AU - 7.57 AU

Year: 12630 Days

Day: 16.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 69,056,803 km

• M1: 153,188 km (0.12 R)
• M2: 674,387 km (0.066 R)
• M3: 1,009,187 km (0.104 R)
• M4: 1,246,449 km (0.086 R)
• M5: 1,758,523 km (0.095 R)
• M6: 2,251,747 km (0.069 R)
• M7: 2,602,255 km (0.029 R)
• M8: 3,033,994 km (0.072 R)
• M9: 3,388,392 km (0.11 R)
• M10: 3,985,437 km (0.11 R)
• M11: 5,057,904 km (0.057 R)
• M12: 5,836,860 km (0.046 R)
• M13: 6,199,485 km (0.055 R)
• M14: 7,050,398 km (0.112 R)
• M15: 7,295,439 km (0.096 R)
• M16: 8,887,310 km (0.045 R)
• M17: 9,967,108 km (0.039 R)
• M18: 11,131,727 km (0.12 R)
• M19: 11,576,930 km (0.106 R)
• M20: 13,602,635 km (0.096 R)
• M21: 15,167,429 km (0.104 R)
• M22: 15,645,693 km (0.107 R)
• M23: 16,994,169 km (0.074 R)
• M24: 18,573,024 km (0.104 R)
• M25: 20,577,038 km (0.085 R)
• M26: 21,078,789 km (0.103 R)
• M27: 21,760,207 km (0.102 R)
• M28: 26,848,629 km (0.047 R)
• M29: 29,932,888 km (0.111 R)
• M30: 31,011,339 km (0.116 R)
• M31: 32,903,902 km (0.112 R)
• M32: 33,589,808 km (0.042 R)
• M33: 35,945,077 km (0.05 R)
• M34: 36,429,026 km (0.059 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 859.3

Radius: 3.7

Gravity: 62.77 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 8.03 AU - 8.57 AU

Year: 15439 Days

Day: 16.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 17 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 69,056,803 km

• M1: 46,675 km (0.112 R)
• M2: 274,362 km (0.086 R)
• M3: 581,637 km (0.114 R)
• M4: 731,833 km (0.104 R)
• M5: 1,287,140 km (0.119 R)
• M6: 2,244,417 km (0.106 R)
• M7: 2,503,520 km (0.084 R)
• M8: 2,782,371 km (0.061 R)
• M9: 3,953,573 km (0.115 R)
• M10: 4,664,462 km (0.112 R)
• M11: 5,306,386 km (0.116 R)
• M12: 6,045,699 km (0.045 R)
• M13: 6,292,834 km (0.094 R)
• M14: 8,315,098 km (0.094 R)
• M15: 10,973,153 km (0.109 R)
• M16: 11,340,865 km (0.061 R)
• M17: 12,826,372 km (0.07 R)
• M18: 13,933,097 km (0.079 R)
• M19: 14,952,307 km (0.094 R)
• M20: 17,384,320 km (0.107 R)
• M21: 19,976,701 km (0.074 R)
• M22: 20,340,673 km (0.079 R)
• M23: 22,815,321 km (0.073 R)
• M24: 24,022,426 km (0.098 R)
• M25: 24,955,019 km (0.067 R)
• M26: 26,019,408 km (0.12 R)
• M27: 26,235,876 km (0.115 R)
• M28: 27,897,609 km (0.072 R)
• M29: 33,301,683 km (0.051 R)
• M30: 36,993,459 km (0.094 R)
• M31: 37,818,641 km (0.073 R)
• M32: 43,179,630 km (0.102 R)
• M33: 46,277,802 km (0.089 R)
• M34: 50,354,942 km (0.112 R)
• M35: 59,964,661 km (0.082 R)
• M36: 60,721,477 km (0.098 R)
• M37: 62,254,256 km (0.073 R)
• M38: 63,812,767 km (0.096 R)
• M39: 64,009,339 km (0.113 R)
• M40: 64,601,596 km (0.113 R)
• M41: 66,198,703 km (0.111 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 11,321 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit