🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 337.4

Radius: 11.2

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.23 AU - 1.55 AU

Year: 1075 Days

Day: 5.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,701,305 km

• M1: 139,425 km (0.112 R)
• M2: 706,850 km (0.095 R)
• M3: 1,275,920 km (0.105 R)
• M4: 1,859,651 km (0.096 R)
• M5: 2,356,765 km (0.094 R)
• M6: 2,977,895 km (0.096 R)
• M7: 3,509,716 km (0.112 R)
• M8: 3,893,883 km (0.113 R)
• M9: 4,730,733 km (0.111 R)
• M10: 5,346,478 km (0.115 R)
• M11: 5,896,400 km (0.09 R)
• M12: 6,297,472 km (0.078 R)
• M13: 6,781,271 km (0.06 R)
• M14: 7,565,015 km (0.12 R)
• M15: 7,990,920 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 118.7

Radius: 11.3

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.2 AU - 1.8 AU

Year: 1205 Days

Day: 10.5 Hours

Environment

Temp: -187 °C

Axial Tilt: 160.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,701,305 km

• M1: 140,921 km (0.113 R)
• M2: 661,971 km (0.097 R)
• M3: 1,063,641 km (0.076 R)
• M4: 1,470,846 km (0.048 R)
• M5: 2,309,941 km (0.052 R)
• M6: 2,725,673 km (0.032 R)
• M7: 3,333,938 km (0.037 R)
• M8: 3,722,743 km (0.103 R)
• M9: 4,170,041 km (0.067 R)
• M10: 4,869,111 km (0.116 R)
• M11: 6,053,478 km (0.099 R)
• M12: 6,481,777 km (0.087 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.5

Radius: 13.6

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.94 AU - 3.2 AU

Year: 2703 Days

Day: 5.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,701,305 km

• M1: 169,345 km (0.079 R)
• M2: 633,098 km (0.05 R)
• M3: 2,218,836 km (0.107 R)
• M4: 3,157,861 km (0.073 R)
• M5: 4,020,293 km (0.105 R)
• M6: 5,117,594 km (0.114 R)
• M7: 5,547,089 km (0.063 R)
• M8: 6,577,818 km (0.111 R)
• M9: 8,804,583 km (0.106 R)
• M10: 9,235,275 km (0.092 R)
• M11: 10,924,983 km (0.117 R)
• M12: 12,969,238 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 188.8

Radius: 11.8

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.33 AU - 2.99 AU

Year: 2846 Days

Day: 6.2 Hours

Environment

Temp: -204 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 64,701,305 km

• M1: 146,756 km (0.093 R)
• M2: 806,632 km (0.119 R)
• M3: 1,586,485 km (0.108 R)
• M4: 2,179,641 km (0.085 R)
• M5: 5,382,831 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 691.6

Radius: 11.3

Gravity: 5.42 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 2.92 AU - 4.36 AU

Year: 4556 Days

Day: 5.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,701,305 km

• M1: 140,472 km (0.118 R)
• M2: 567,425 km (0.097 R)
• M3: 1,215,184 km (0.057 R)
• M4: 2,093,024 km (0.096 R)
• M5: 2,756,640 km (0.114 R)
• M6: 3,576,586 km (0.091 R)
• M7: 4,552,114 km (0.112 R)
• M8: 5,725,410 km (0.085 R)
• M9: 6,445,275 km (0.109 R)
• M10: 7,671,977 km (0.03 R)
• M11: 9,206,552 km (0.093 R)
• M12: 9,733,286 km (0.114 R)
• M13: 10,539,469 km (0.072 R)
• M14: 10,891,922 km (0.084 R)
• M15: 15,590,043 km (0.096 R)
• M16: 18,222,965 km (0.052 R)
• M17: 19,978,048 km (0.059 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.9

Radius: 14.9

Gravity: 3.2 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 4 AU - 5.46 AU

Year: 6748 Days

Day: 10.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,701,305 km

• M1: 185,352 km (0.12 R)
• M2: 940,821 km (0.118 R)
• M3: 1,507,647 km (0.11 R)
• M4: 1,990,998 km (0.045 R)
• M5: 2,456,547 km (0.105 R)
• M6: 3,158,310 km (0.112 R)
• M7: 4,215,518 km (0.117 R)
• M8: 4,911,148 km (0.113 R)
• M9: 5,682,475 km (0.115 R)
• M10: 6,918,602 km (0.097 R)
• M11: 7,619,618 km (0.074 R)
• M12: 8,086,513 km (0.069 R)
• M13: 9,693,493 km (0.078 R)
• M14: 11,155,064 km (0.117 R)
• M15: 16,103,313 km (0.104 R)
• M16: 17,072,408 km (0.118 R)
• M17: 21,726,697 km (0.117 R)
• M18: 25,491,178 km (0.034 R)
• M19: 27,984,526 km (0.1 R)
• M20: 31,423,781 km (0.109 R)
• M21: 32,325,856 km (0.072 R)
• M22: 34,815,763 km (0.08 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.5

Radius: 8.6

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.55 AU - 5.01 AU

Year: 6856 Days

Day: 5.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,701,305 km

• M1: 107,262 km (0.034 R)
• M2: 463,005 km (0.081 R)
• M3: 1,050,027 km (0.064 R)
• M4: 1,475,035 km (0.045 R)
• M5: 2,260,424 km (0.085 R)
• M6: 3,279,335 km (0.055 R)
• M7: 3,581,822 km (0.065 R)
• M8: 7,176,210 km (0.097 R)
• M9: 8,147,399 km (0.091 R)
• M10: 10,303,105 km (0.071 R)
• M11: 11,292,096 km (0.071 R)
• M12: 16,631,693 km (0.105 R)
• M13: 18,594,417 km (0.052 R)
• M14: 23,288,200 km (0.116 R)
• M15: 23,605,347 km (0.073 R)
• M16: 25,653,641 km (0.064 R)
• M17: 30,951,650 km (0.093 R)
• M18: 33,703,503 km (0.092 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.9

Radius: 9

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 5.74 AU - 5.9 AU

Year: 9211 Days

Day: 10.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 64,701,305 km

• M1: 116,238 km (0.108 R)
• M2: 604,076 km (0.062 R)
• M3: 1,384,678 km (0.037 R)
• M4: 1,666,969 km (0.089 R)
• M5: 2,132,966 km (0.096 R)
• M6: 3,676,068 km (0.081 R)
• M7: 4,469,087 km (0.119 R)
• M8: 4,807,926 km (0.113 R)
• M9: 6,685,529 km (0.057 R)
• M10: 7,985,235 km (0.073 R)
• M11: 10,886,835 km (0.112 R)
• M12: 11,580,970 km (0.051 R)
• M13: 12,635,186 km (0.099 R)
• M14: 15,215,749 km (0.082 R)
• M15: 16,181,702 km (0.097 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 308.5

Radius: 3.8

Gravity: 21.36 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 7.94 AU - 9.28 AU

Year: 16573 Days

Day: 24 Hours

Environment

Temp: -233 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 64,701,305 km

• M1: 49,218 km (0.113 R)
• M2: 551,119 km (0.039 R)
• M3: 850,464 km (0.083 R)
• M4: 1,151,754 km (0.115 R)
• M5: 1,669,363 km (0.059 R)
• M6: 2,067,742 km (0.079 R)
• M7: 2,327,892 km (0.072 R)
• M8: 2,958,148 km (0.047 R)
• M9: 3,462,293 km (0.091 R)
• M10: 3,668,738 km (0.072 R)
• M11: 4,308,119 km (0.103 R)
• M12: 4,516,659 km (0.094 R)
• M13: 4,794,612 km (0.079 R)
• M14: 4,986,097 km (0.091 R)
• M15: 5,316,708 km (0.058 R)
• M16: 5,839,852 km (0.08 R)
• M17: 5,984,962 km (0.112 R)
• M18: 6,511,846 km (0.111 R)
• M19: 8,507,332 km (0.115 R)
• M20: 8,930,993 km (0.112 R)
• M21: 9,871,515 km (0.033 R)
• M22: 11,262,775 km (0.104 R)
• M23: 14,165,273 km (0.096 R)
• M24: 16,354,638 km (0.108 R)
• M25: 18,917,249 km (0.101 R)
• M26: 20,710,628 km (0.111 R)
• M27: 21,561,990 km (0.097 R)
• M28: 22,614,261 km (0.067 R)
• M29: 25,010,370 km (0.108 R)
• M30: 30,300,002 km (0.104 R)
• M31: 37,026,371 km (0.068 R)
• M32: 45,957,663 km (0.057 R)
• M33: 47,989,202 km (0.116 R)
• M34: 50,688,097 km (0.117 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.48 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 459.5

Radius: 3.7

Gravity: 33.56 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 9.34 AU - 9.62 AU

Year: 19148 Days

Day: 16.9 Hours

Environment

Temp: -238 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 64,701,305 km

• M1: 49,068 km (0.072 R)
• M2: 282,142 km (0.078 R)
• M3: 1,118,094 km (0.112 R)
• M4: 1,420,133 km (0.045 R)
• M5: 1,935,048 km (0.064 R)
• M6: 2,498,584 km (0.092 R)
• M7: 4,600,583 km (0.117 R)
• M8: 5,115,200 km (0.088 R)
• M9: 6,339,359 km (0.038 R)
• M10: 6,801,617 km (0.035 R)
• M11: 7,151,825 km (0.109 R)
• M12: 14,434,699 km (0.099 R)
• M13: 14,721,478 km (0.112 R)
• M14: 16,995,066 km (0.077 R)
• M15: 20,286,219 km (0.035 R)
• M16: 23,186,922 km (0.075 R)
• M17: 23,679,249 km (0.069 R)
• M18: 23,878,064 km (0.108 R)
• M19: 26,245,899 km (0.057 R)
• M20: 27,761,176 km (0.102 R)
• M21: 32,778,539 km (0.101 R)
• M22: 34,406,463 km (0.117 R)
• M23: 34,661,677 km (0.095 R)
• M24: 38,230,783 km (0.108 R)
• M25: 41,746,931 km (0.117 R)
• M26: 43,956,791 km (0.074 R)
• M27: 49,090,392 km (0.091 R)
• M28: 51,884,431 km (0.059 R)
• M29: 54,091,149 km (0.08 R)
• M30: 60,527,298 km (0.108 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 13,812 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit