🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.1

Radius: 8.8

Gravity: 4.81 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.53 AU - 0.61 AU

Year: 287 Days

Day: 14.5 Hours

Environment

Temp: -141 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,270,906 km

• M1: 109,506 km (0.118 R)
• M2: 388,206 km (0.088 R)
• M3: 720,763 km (0.107 R)
• M4: 1,028,635 km (0.045 R)
• M5: 1,398,590 km (0.042 R)
• M6: 1,682,976 km (0.108 R)
• M7: 1,957,787 km (0.077 R)
• M8: 2,240,079 km (0.036 R)
• M9: 2,516,535 km (0.086 R)
• M10: 3,275,745 km (0.106 R)
• M11: 3,570,752 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 642.6

Radius: 8.7

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.79 AU - 1.21 AU

Year: 667 Days

Day: 6.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,270,906 km

• M1: 108,159 km (0.04 R)
• M2: 426,055 km (0.05 R)
• M3: 765,193 km (0.111 R)
• M4: 1,047,783 km (0.106 R)
• M5: 1,408,763 km (0.116 R)
• M6: 1,694,645 km (0.103 R)
• M7: 2,159,146 km (0.106 R)
• M8: 2,532,243 km (0.045 R)
• M9: 2,900,852 km (0.086 R)
• M10: 3,554,445 km (0.091 R)
• M11: 3,830,753 km (0.105 R)
• M12: 4,226,738 km (0.065 R)
• M13: 4,763,944 km (0.117 R)
• M14: 5,310,575 km (0.115 R)
• M15: 5,784,800 km (0.11 R)
• M16: 6,713,803 km (0.11 R)
• M17: 7,094,829 km (0.032 R)
• M18: 7,423,346 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 790.8

Radius: 8.3

Gravity: 11.48 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.94 AU - 1.38 AU

Year: 833 Days

Day: 11.8 Hours

Environment

Temp: -189 °C

Axial Tilt: 9.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,270,906 km

• M1: 103,372 km (0.072 R)
• M2: 640,428 km (0.096 R)
• M3: 928,105 km (0.105 R)
• M4: 1,219,522 km (0.093 R)
• M5: 1,491,940 km (0.087 R)
• M6: 1,954,496 km (0.081 R)
• M7: 2,214,946 km (0.106 R)
• M8: 2,649,378 km (0.092 R)
• M9: 2,918,954 km (0.118 R)
• M10: 3,371,786 km (0.12 R)
• M11: 3,719,153 km (0.076 R)
• M12: 4,401,469 km (0.111 R)
• M13: 6,054,675 km (0.085 R)
• M14: 6,481,627 km (0.042 R)
• M15: 7,419,905 km (0.12 R)
• M16: 8,683,109 km (0.075 R)
• M17: 9,198,923 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.5

Radius: 12.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.24 AU - 1.32 AU

Year: 966 Days

Day: 12.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,270,906 km

• M1: 158,125 km (0.058 R)
• M2: 562,338 km (0.066 R)
• M3: 985,551 km (0.11 R)
• M4: 1,505,254 km (0.04 R)
• M5: 1,953,748 km (0.088 R)
• M6: 3,210,969 km (0.081 R)
• M7: 3,632,835 km (0.079 R)
• M8: 4,350,755 km (0.113 R)
• M9: 4,838,145 km (0.053 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 505.8

Radius: 13.1

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.95 AU - 2.25 AU

Year: 2029 Days

Day: 12.1 Hours

Environment

Temp: -201 °C

Axial Tilt: 43.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,270,906 km

• M1: 162,912 km (0.088 R)
• M2: 930,948 km (0.117 R)
• M3: 1,466,957 km (0.117 R)
• M4: 2,366,040 km (0.105 R)
• M5: 2,990,910 km (0.067 R)
• M6: 3,724,089 km (0.032 R)
• M7: 4,170,938 km (0.072 R)
• M8: 4,898,582 km (0.064 R)
• M9: 6,633,469 km (0.108 R)
• M10: 7,131,630 km (0.119 R)
• M11: 7,998,250 km (0.111 R)
• M12: 8,996,816 km (0.084 R)
• M13: 10,385,683 km (0.113 R)
• M14: 11,499,289 km (0.087 R)
• M15: 12,375,933 km (0.097 R)
• M16: 12,890,699 km (0.093 R)
• M17: 14,348,381 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 920.7

Radius: 10.1

Gravity: 9.03 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 2.85 AU - 3.89 AU

Year: 4125 Days

Day: 7.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,270,906 km

• M1: 125,662 km (0.112 R)
• M2: 519,105 km (0.074 R)
• M3: 1,118,394 km (0.074 R)
• M4: 2,036,027 km (0.102 R)
• M5: 4,159,270 km (0.106 R)
• M6: 4,773,219 km (0.072 R)
• M7: 6,493,744 km (0.09 R)
• M8: 6,849,339 km (0.092 R)
• M9: 7,286,164 km (0.118 R)
• M10: 8,141,715 km (0.06 R)
• M11: 9,466,703 km (0.115 R)
• M12: 12,098,429 km (0.082 R)
• M13: 12,439,961 km (0.068 R)
• M14: 14,517,127 km (0.078 R)
• M15: 14,847,589 km (0.056 R)
• M16: 17,241,603 km (0.074 R)
• M17: 18,242,114 km (0.105 R)
• M18: 19,148,827 km (0.104 R)
• M19: 20,153,376 km (0.12 R)
• M20: 20,912,137 km (0.107 R)
• M21: 23,302,711 km (0.109 R)
• M22: 28,276,840 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.3

Radius: 14.6

Gravity: 4.08 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 2.89 AU - 4.25 AU

Year: 4498 Days

Day: 7.2 Hours

Environment

Temp: -208 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 84,270,906 km

• M1: 196,572 km (0.088 R)
• M2: 777,909 km (0.075 R)
• M3: 1,382,883 km (0.072 R)
• M4: 2,062,955 km (0.054 R)
• M5: 3,016,641 km (0.098 R)
• M6: 3,745,931 km (0.075 R)
• M7: 4,515,612 km (0.118 R)
• M8: 5,851,521 km (0.102 R)
• M9: 6,923,838 km (0.112 R)
• M10: 7,578,030 km (0.106 R)
• M11: 9,293,469 km (0.108 R)
• M12: 10,933,510 km (0.061 R)
• M13: 11,536,689 km (0.09 R)
• M14: 14,725,068 km (0.081 R)
• M15: 17,193,283 km (0.101 R)
• M16: 23,542,666 km (0.086 R)
• M17: 25,748,636 km (0.072 R)
• M18: 30,296,262 km (0.032 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 701

Radius: 5.4

Gravity: 24.04 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 5.46 AU - 6.7 AU

Year: 9997 Days

Day: 21.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 84,270,906 km

• M1: 98,884 km (0.032 R)
• M2: 321,187 km (0.058 R)
• M3: 669,450 km (0.111 R)
• M4: 1,231,190 km (0.084 R)
• M5: 1,449,005 km (0.064 R)
• M6: 2,393,117 km (0.1 R)
• M7: 6,540,120 km (0.054 R)
• M8: 6,770,351 km (0.102 R)
• M9: 8,401,267 km (0.086 R)
• M10: 10,694,004 km (0.065 R)
• M11: 16,257,249 km (0.069 R)
• M12: 18,598,157 km (0.118 R)
• M13: 21,573,958 km (0.107 R)
• M14: 29,372,345 km (0.037 R)
• M15: 30,742,512 km (0.068 R)
• M16: 31,497,682 km (0.108 R)
• M17: 34,642,229 km (0.099 R)
• M18: 37,377,028 km (0.098 R)
• M19: 45,876,581 km (0.089 R)
• M20: 46,579,242 km (0.068 R)
• M21: 47,574,816 km (0.071 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 217.9

Radius: 7.6

Gravity: 3.77 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.34 AU - 9.56 AU

Year: 14948 Days

Day: 24 Hours

Environment

Temp: -231 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 84,270,906 km

• M1: 94,546 km (0.025 R)
• M2: 406,158 km (0.07 R)
• M3: 844,630 km (0.073 R)
• M4: 1,114,055 km (0.098 R)
• M5: 1,699,133 km (0.113 R)
• M6: 2,052,932 km (0.064 R)
• M7: 2,568,446 km (0.108 R)
• M8: 2,826,203 km (0.112 R)
• M9: 3,256,746 km (0.077 R)
• M10: 3,830,453 km (0.036 R)
• M11: 5,302,796 km (0.072 R)
• M12: 7,470,469 km (0.113 R)
• M13: 8,166,548 km (0.047 R)
• M14: 9,687,659 km (0.052 R)
• M15: 10,665,730 km (0.117 R)
• M16: 11,654,572 km (0.072 R)
• M17: 12,143,757 km (0.105 R)
• M18: 12,989,434 km (0.101 R)
• M19: 13,456,029 km (0.095 R)
• M20: 14,238,277 km (0.059 R)
• M21: 15,827,305 km (0.075 R)
• M22: 19,353,626 km (0.102 R)
• M23: 20,194,067 km (0.113 R)
• M24: 20,979,157 km (0.099 R)
• M25: 22,360,244 km (0.113 R)
• M26: 23,200,386 km (0.12 R)
• M27: 32,577,928 km (0.103 R)
• M28: 33,006,676 km (0.036 R)
• M29: 35,320,057 km (0.106 R)
• M30: 40,143,990 km (0.086 R)
• M31: 41,509,220 km (0.081 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 847.2

Radius: 3.7

Gravity: 61.88 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 9.78 AU - 10.14 AU

Year: 20961 Days

Day: 18.1 Hours

Environment

Temp: -241 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (42)

Outer Limit: 84,270,906 km

• M1: 66,122 km (0.106 R)
• M2: 319,092 km (0.116 R)
• M3: 438,322 km (0.055 R)
• M4: 579,243 km (0.077 R)
• M5: 740,210 km (0.098 R)
• M6: 1,210,396 km (0.106 R)
• M7: 1,362,089 km (0.045 R)
• M8: 1,578,258 km (0.12 R)
• M9: 1,703,770 km (0.082 R)
• M10: 2,320,113 km (0.057 R)
• M11: 3,910,488 km (0.067 R)
• M12: 4,074,597 km (0.089 R)
• M13: 4,927,754 km (0.105 R)
• M14: 5,850,922 km (0.104 R)
• M15: 6,466,069 km (0.093 R)
• M16: 7,026,762 km (0.117 R)
• M17: 8,244,189 km (0.108 R)
• M18: 9,654,747 km (0.111 R)
• M19: 10,199,583 km (0.103 R)
• M20: 10,323,450 km (0.092 R)
• M21: 15,156,508 km (0.113 R)
• M22: 15,480,238 km (0.079 R)
• M23: 19,637,413 km (0.095 R)
• M24: 20,412,031 km (0.094 R)
• M25: 20,806,820 km (0.063 R)
• M26: 21,408,502 km (0.069 R)
• M27: 22,857,507 km (0.114 R)
• M28: 26,180,076 km (0.072 R)
• M29: 26,999,125 km (0.085 R)
• M30: 33,216,562 km (0.058 R)
• M31: 34,732,437 km (0.099 R)
• M32: 36,727,624 km (0.112 R)
• M33: 41,730,027 km (0.059 R)
• M34: 44,641,052 km (0.076 R)
• M35: 44,972,561 km (0.071 R)
• M36: 45,472,966 km (0.097 R)
• M37: 45,808,663 km (0.039 R)
• M38: 49,433,420 km (0.057 R)
• M39: 54,368,803 km (0.109 R)
• M40: 62,682,106 km (0.052 R)
• M41: 72,944,670 km (0.115 R)
• M42: 84,270,874 km (0.118 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 16,460 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit