🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.7

Radius: 12.7

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.95 AU - 1.07 AU

Year: 688 Days

Day: 13.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,770,433 km

• M1: 158,125 km (0.111 R)
• M2: 582,085 km (0.113 R)
• M3: 1,091,915 km (0.117 R)
• M4: 1,522,906 km (0.026 R)
• M5: 2,189,963 km (0.037 R)
• M6: 3,021,428 km (0.117 R)
• M7: 3,445,239 km (0.105 R)
• M8: 3,980,799 km (0.113 R)
• M9: 4,571,412 km (0.069 R)
• M10: 5,649,115 km (0.108 R)
• M11: 6,277,725 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.3

Radius: 9.4

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.06 AU - 1.58 AU

Year: 1029 Days

Day: 8.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,770,433 km

• M1: 116,986 km (0.08 R)
• M2: 485,295 km (0.08 R)
• M3: 1,000,361 km (0.101 R)
• M4: 1,546,543 km (0.084 R)
• M5: 1,864,139 km (0.077 R)
• M6: 2,203,876 km (0.119 R)
• M7: 2,500,379 km (0.043 R)
• M8: 2,889,333 km (0.089 R)
• M9: 3,232,062 km (0.081 R)
• M10: 3,694,918 km (0.109 R)
• M11: 4,033,159 km (0.101 R)
• M12: 4,624,818 km (0.092 R)
• M13: 5,154,694 km (0.117 R)
• M14: 5,578,205 km (0.117 R)
• M15: 6,134,709 km (0.038 R)
• M16: 7,184,737 km (0.052 R)
• M17: 7,948,733 km (0.076 R)
• M18: 8,935,780 km (0.097 R)
• M19: 9,788,637 km (0.033 R)
• M20: 10,250,596 km (0.094 R)
• M21: 11,019,828 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 100

Radius: 14.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 1.39 AU - 1.99 AU

Year: 1490 Days

Day: 10.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 86,770,433 km

• M1: 180,265 km (0.032 R)
• M2: 697,575 km (0.108 R)
• M3: 1,213,388 km (0.083 R)
• M4: 2,400,747 km (0.049 R)
• M5: 3,225,779 km (0.074 R)
• M6: 3,705,539 km (0.116 R)
• M7: 4,161,065 km (0.06 R)
• M8: 4,685,106 km (0.099 R)
• M9: 6,126,182 km (0.072 R)
• M10: 6,627,634 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 371.3

Radius: 10.6

Gravity: 3.3 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.87 AU - 4.21 AU

Year: 4517 Days

Day: 13.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,770,433 km

• M1: 131,796 km (0.113 R)
• M2: 582,085 km (0.108 R)
• M3: 1,155,344 km (0.066 R)
• M4: 1,708,557 km (0.096 R)
• M5: 2,329,688 km (0.06 R)
• M6: 3,095,778 km (0.045 R)
• M7: 4,021,789 km (0.089 R)
• M8: 5,122,979 km (0.101 R)
• M9: 6,472,801 km (0.117 R)
• M10: 7,978,952 km (0.056 R)
• M11: 8,635,387 km (0.115 R)
• M12: 9,364,976 km (0.081 R)
• M13: 10,214,243 km (0.057 R)
• M14: 12,380,271 km (0.087 R)
• M15: 12,978,064 km (0.092 R)
• M16: 13,355,350 km (0.106 R)
• M17: 15,301,020 km (0.11 R)
• M18: 17,089,163 km (0.08 R)
• M19: 17,888,465 km (0.065 R)
• M20: 20,690,582 km (0.037 R)
• M21: 22,940,983 km (0.097 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.4

Radius: 6.1

Gravity: 13.72 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.47 AU - 7.17 AU

Year: 9523 Days

Day: 18.8 Hours

Environment

Temp: -220 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 86,770,433 km

• M1: 75,846 km (0.089 R)
• M2: 493,075 km (0.08 R)
• M3: 796,908 km (0.091 R)
• M4: 1,017,415 km (0.061 R)
• M5: 1,740,721 km (0.074 R)
• M6: 2,002,367 km (0.09 R)
• M7: 3,508,070 km (0.057 R)
• M8: 4,324,575 km (0.091 R)
• M9: 4,661,470 km (0.113 R)
• M10: 5,106,823 km (0.099 R)
• M11: 6,186,171 km (0.075 R)
• M12: 6,723,975 km (0.105 R)
• M13: 6,985,323 km (0.104 R)
• M14: 8,183,452 km (0.116 R)
• M15: 11,290,002 km (0.09 R)
• M16: 12,091,996 km (0.085 R)
• M17: 12,874,094 km (0.094 R)
• M18: 13,453,187 km (0.04 R)
• M19: 14,976,542 km (0.113 R)
• M20: 15,358,615 km (0.106 R)
• M21: 21,978,321 km (0.058 R)
• M22: 24,083,013 km (0.083 R)
• M23: 25,498,359 km (0.025 R)
• M24: 28,785,921 km (0.112 R)
• M25: 29,475,717 km (0.098 R)
• M26: 30,277,562 km (0.074 R)
• M27: 30,581,844 km (0.074 R)
• M28: 31,507,256 km (0.058 R)
• M29: 31,924,485 km (0.077 R)
• M30: 32,345,453 km (0.096 R)
• M31: 35,396,053 km (0.084 R)
• M32: 35,960,187 km (0.115 R)
• M33: 40,815,086 km (0.046 R)
• M34: 41,310,854 km (0.051 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 631.3

Radius: 7.5

Gravity: 11.22 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.48 AU - 7.24 AU

Year: 9621 Days

Day: 22.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 86,770,433 km

• M1: 103,522 km (0.071 R)
• M2: 603,179 km (0.066 R)
• M3: 881,431 km (0.1 R)
• M4: 1,367,923 km (0.097 R)
• M5: 2,174,854 km (0.087 R)
• M6: 2,504,867 km (0.061 R)
• M7: 3,062,568 km (0.105 R)
• M8: 3,527,069 km (0.082 R)
• M9: 4,199,960 km (0.079 R)
• M10: 7,157,959 km (0.077 R)
• M11: 10,139,744 km (0.069 R)
• M12: 10,697,744 km (0.112 R)
• M13: 10,958,044 km (0.112 R)
• M14: 17,669,752 km (0.098 R)
• M15: 18,328,731 km (0.097 R)
• M16: 23,496,290 km (0.093 R)
• M17: 26,791,333 km (0.106 R)
• M18: 31,646,981 km (0.066 R)
• M19: 32,618,320 km (0.088 R)
• M20: 39,236,679 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84

Radius: 6.6

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 7.64 AU - 8.24 AU

Year: 15175 Days

Day: 21.8 Hours

Environment

Temp: -239 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 86,770,433 km

• M1: 120,576 km (0.057 R)
• M2: 1,025,493 km (0.072 R)
• M3: 4,492,274 km (0.08 R)
• M4: 4,911,896 km (0.075 R)
• M5: 10,656,904 km (0.105 R)
• M6: 13,580,495 km (0.076 R)
• M7: 27,745,019 km (0.093 R)
• M8: 29,692,784 km (0.075 R)
• M9: 31,446,819 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 956.7

Radius: 5.6

Gravity: 30.51 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 9.25 AU - 9.27 AU

Year: 19112 Days

Day: 24.9 Hours

Environment

Temp: -236 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,770,433 km

• M1: 72,405 km (0.06 R)
• M2: 336,894 km (0.085 R)
• M3: 526,884 km (0.079 R)
• M4: 1,252,583 km (0.057 R)
• M5: 1,802,954 km (0.104 R)
• M6: 2,549,597 km (0.11 R)
• M7: 4,013,262 km (0.083 R)
• M8: 5,189,401 km (0.094 R)
• M9: 6,265,608 km (0.054 R)
• M10: 6,579,015 km (0.107 R)
• M11: 7,140,606 km (0.101 R)
• M12: 8,359,080 km (0.056 R)
• M13: 10,687,571 km (0.073 R)
• M14: 11,330,992 km (0.112 R)
• M15: 12,343,919 km (0.104 R)
• M16: 13,637,491 km (0.087 R)
• M17: 14,860,903 km (0.109 R)
• M18: 15,989,918 km (0.094 R)
• M19: 19,718,645 km (0.066 R)
• M20: 20,197,957 km (0.106 R)
• M21: 20,684,898 km (0.08 R)
• M22: 29,081,826 km (0.102 R)
• M23: 31,617,959 km (0.067 R)
• M24: 35,976,194 km (0.074 R)
• M25: 40,104,197 km (0.054 R)
• M26: 46,364,120 km (0.068 R)
• M27: 46,701,613 km (0.112 R)
• M28: 47,552,526 km (0.116 R)
• M29: 51,059,698 km (0.115 R)
• M30: 55,871,813 km (0.097 R)
• M31: 57,605,353 km (0.052 R)
• M32: 58,191,178 km (0.067 R)
• M33: 60,977,289 km (0.077 R)
• M34: 62,403,256 km (0.084 R)
• M35: 64,269,040 km (0.059 R)
• M36: 81,529,792 km (0.083 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 932.8

Radius: 6.9

Gravity: 19.59 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 9.3 AU - 10.34 AU

Year: 20872 Days

Day: 22.6 Hours

Environment

Temp: -241 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 86,770,433 km

• M1: 87,515 km (0.048 R)
• M2: 384,317 km (0.112 R)
• M3: 1,239,718 km (0.045 R)
• M4: 1,968,409 km (0.059 R)
• M5: 2,266,258 km (0.05 R)
• M6: 4,370,651 km (0.102 R)
• M7: 4,693,783 km (0.099 R)
• M8: 8,578,540 km (0.099 R)
• M9: 10,921,393 km (0.037 R)
• M10: 12,629,351 km (0.116 R)
• M11: 14,351,223 km (0.106 R)
• M12: 15,803,669 km (0.109 R)
• M13: 23,781,873 km (0.073 R)
• M14: 24,894,133 km (0.106 R)
• M15: 27,704,628 km (0.095 R)
• M16: 29,818,596 km (0.087 R)
• M17: 42,662,620 km (0.087 R)
• M18: 51,831,922 km (0.081 R)
• M19: 58,957,867 km (0.104 R)
• M20: 60,784,756 km (0.12 R)
• M21: 63,701,167 km (0.086 R)
• M22: 65,193,705 km (0.094 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 286 - 16,364 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit