🌌 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 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.4 AU - 0.64 AU

Year: 246 Days

Day: 19.7 Hours

Environment

Temp: -122 °C

Axial Tilt: 12.5 °

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: 704.8

Radius: 11.7

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 0.66 AU - 0.74 AU

Year: 384 Days

Day: 8.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,554,974 km

• M1: 145,559 km (0.08 R)
• M2: 590,164 km (0.118 R)
• M3: 962,363 km (0.059 R)
• M4: 1,333,366 km (0.06 R)
• M5: 1,758,822 km (0.11 R)
• M6: 2,671,519 km (0.109 R)
• M7: 3,201,694 km (0.091 R)
• M8: 3,978,256 km (0.109 R)
• M9: 5,209,746 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.8

Radius: 11.4

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.91 AU - 1.07 AU

Year: 646 Days

Day: 8.4 Hours

Environment

Temp: -150 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,554,974 km

• M1: 142,118 km (0.103 R)
• M2: 546,331 km (0.056 R)
• M3: 921,224 km (0.079 R)
• M4: 1,682,826 km (0.088 R)
• M5: 2,388,330 km (0.096 R)
• M6: 3,329,899 km (0.108 R)
• M7: 4,240,352 km (0.059 R)
• M8: 5,478,274 km (0.064 R)
• M9: 5,934,398 km (0.116 R)
• M10: 6,549,993 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 448.2

Radius: 14.8

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.88 AU - 1.26 AU

Year: 726 Days

Day: 7.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,554,974 km

• M1: 184,005 km (0.078 R)
• M2: 656,435 km (0.091 R)
• M3: 1,199,625 km (0.09 R)
• M4: 1,762,712 km (0.12 R)
• M5: 2,231,851 km (0.088 R)
• M6: 3,138,115 km (0.077 R)
• M7: 3,907,496 km (0.093 R)
• M8: 4,382,470 km (0.075 R)
• M9: 4,896,488 km (0.092 R)
• M10: 5,363,981 km (0.056 R)
• M11: 6,868,038 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 14.3

Radius: 11.3

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.03 AU - 1.21 AU

Year: 778 Days

Day: 6.4 Hours

Environment

Temp: -167 °C

Axial Tilt: 29.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 76,554,974 km

• M1: 140,921 km (0.087 R)
• M2: 568,622 km (0.049 R)
• M3: 1,138,290 km (0.074 R)
• M4: 1,610,870 km (0.108 R)
• M5: 2,297,524 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.6

Radius: 10.8

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 4.87 AU - 5.45 AU

Year: 7689 Days

Day: 9 Hours

Environment

Temp: -208 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,554,974 km

• M1: 134,339 km (0.083 R)
• M2: 516,412 km (0.102 R)
• M3: 882,179 km (0.112 R)
• M4: 1,268,740 km (0.074 R)
• M5: 1,857,856 km (0.099 R)
• M6: 4,010,719 km (0.09 R)
• M7: 6,700,638 km (0.106 R)
• M8: 7,119,662 km (0.118 R)
• M9: 9,074,158 km (0.098 R)
• M10: 9,869,720 km (0.087 R)
• M11: 10,229,802 km (0.041 R)
• M12: 11,402,200 km (0.097 R)
• M13: 12,494,564 km (0.101 R)
• M14: 14,560,361 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 852.2

Radius: 6.8

Gravity: 18.43 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.81 AU - 6.35 AU

Year: 9835 Days

Day: 19.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 76,554,974 km

• M1: 84,672 km (0.083 R)
• M2: 386,411 km (0.058 R)
• M3: 918,681 km (0.092 R)
• M4: 1,458,878 km (0.061 R)
• M5: 1,880,595 km (0.113 R)
• M6: 2,641,898 km (0.084 R)
• M7: 3,103,857 km (0.107 R)
• M8: 3,366,550 km (0.063 R)
• M9: 3,722,444 km (0.112 R)
• M10: 5,784,202 km (0.112 R)
• M11: 6,109,427 km (0.085 R)
• M12: 6,639,752 km (0.048 R)
• M13: 6,956,151 km (0.098 R)
• M14: 7,748,272 km (0.098 R)
• M15: 8,143,809 km (0.1 R)
• M16: 8,415,030 km (0.108 R)
• M17: 8,645,560 km (0.077 R)
• M18: 10,066,890 km (0.106 R)
• M19: 11,023,717 km (0.087 R)
• M20: 12,933,185 km (0.039 R)
• M21: 13,615,800 km (0.099 R)
• M22: 13,869,967 km (0.115 R)
• M23: 15,461,688 km (0.119 R)
• M24: 16,588,010 km (0.077 R)
• M25: 18,689,262 km (0.075 R)
• M26: 21,816,157 km (0.05 R)
• M27: 23,960,941 km (0.051 R)
• M28: 25,562,686 km (0.051 R)
• M29: 29,823,532 km (0.082 R)
• M30: 36,697,106 km (0.093 R)
• M31: 38,313,959 km (0.105 R)
• M32: 41,689,187 km (0.118 R)
• M33: 43,861,647 km (0.077 R)
• M34: 47,405,770 km (0.093 R)
• M35: 48,431,263 km (0.053 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 995.2

Radius: 4

Gravity: 62.2 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 7.29 AU - 7.51 AU

Year: 13206 Days

Day: 17.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,554,974 km

• M1: 49,816 km (0.066 R)
• M2: 210,335 km (0.109 R)
• M3: 370,554 km (0.095 R)
• M4: 628,909 km (0.038 R)
• M5: 764,146 km (0.118 R)
• M6: 1,009,935 km (0.085 R)
• M7: 1,158,037 km (0.099 R)
• M8: 1,349,223 km (0.118 R)
• M9: 1,545,346 km (0.067 R)
• M10: 2,375,016 km (0.087 R)
• M11: 2,661,645 km (0.111 R)
• M12: 3,438,208 km (0.085 R)
• M13: 4,517,108 km (0.11 R)
• M14: 4,991,782 km (0.072 R)
• M15: 5,350,517 km (0.073 R)
• M16: 5,498,919 km (0.066 R)
• M17: 9,125,171 km (0.053 R)
• M18: 10,274,382 km (0.082 R)
• M19: 10,736,490 km (0.119 R)
• M20: 13,459,919 km (0.103 R)
• M21: 15,090,236 km (0.071 R)
• M22: 19,953,065 km (0.104 R)
• M23: 21,036,901 km (0.12 R)
• M24: 21,780,702 km (0.114 R)
• M25: 23,518,431 km (0.111 R)
• M26: 30,208,896 km (0.102 R)
• M27: 36,183,237 km (0.116 R)
• M28: 36,580,868 km (0.069 R)
• M29: 38,200,115 km (0.097 R)
• M30: 40,007,707 km (0.109 R)
• M31: 41,436,366 km (0.096 R)
• M32: 44,093,075 km (0.078 R)
• M33: 47,967,959 km (0.104 R)
• M34: 51,560,402 km (0.109 R)
• M35: 51,895,501 km (0.064 R)
• M36: 59,458,721 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 806.2

Radius: 7.1

Gravity: 15.99 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 7.6 AU - 11 AU

Year: 18605 Days

Day: 21.4 Hours

Environment

Temp: -233 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 76,554,974 km

• M1: 96,790 km (0.077 R)
• M2: 419,472 km (0.11 R)
• M3: 891,454 km (0.093 R)
• M4: 1,479,373 km (0.103 R)
• M5: 2,132,368 km (0.12 R)
• M6: 3,228,322 km (0.078 R)
• M7: 5,130,459 km (0.117 R)
• M8: 5,553,671 km (0.114 R)
• M9: 5,794,075 km (0.077 R)
• M10: 8,974,825 km (0.09 R)
• M11: 10,593,923 km (0.025 R)
• M12: 11,216,549 km (0.076 R)
• M13: 12,949,790 km (0.102 R)
• M14: 14,625,286 km (0.087 R)
• M15: 15,475,750 km (0.082 R)
• M16: 20,322,123 km (0.04 R)
• M17: 23,605,347 km (0.114 R)
• M18: 27,341,105 km (0.079 R)
• M19: 28,156,264 km (0.101 R)
• M20: 30,699,129 km (0.112 R)
• M21: 31,452,803 km (0.102 R)
• M22: 33,788,025 km (0.117 R)
• M23: 41,483,041 km (0.067 R)
• M24: 42,869,514 km (0.073 R)
• M25: 44,127,782 km (0.081 R)
• M26: 44,765,966 km (0.081 R)
• M27: 47,214,285 km (0.106 R)
• M28: 48,725,373 km (0.101 R)
• M29: 51,490,839 km (0.058 R)
• M30: 59,438,076 km (0.059 R)
• M31: 61,198,843 km (0.114 R)
• M32: 72,278,660 km (0.112 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 399 - 14,937 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit