🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.8

Radius: 11.8

Gravity: 7.02 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.72 AU - 1 AU

Year: 532 Days

Day: 11.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 57,331,395 km

• M1: 146,756 km (0.118 R)
• M2: 525,837 km (0.113 R)
• M3: 984,653 km (0.09 R)
• M4: 1,398,590 km (0.076 R)
• M5: 1,812,079 km (0.116 R)
• M6: 2,407,479 km (0.083 R)
• M7: 3,228,621 km (0.079 R)
• M8: 4,079,684 km (0.094 R)
• M9: 4,645,762 km (0.117 R)
• M10: 5,879,346 km (0.101 R)
• M11: 6,767,359 km (0.073 R)
• M12: 7,146,889 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 775.5

Radius: 14.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.43 AU - 1.81 AU

Year: 1375 Days

Day: 8.2 Hours

Environment

Temp: -187 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,331,395 km

• M1: 186,997 km (0.086 R)
• M2: 691,591 km (0.103 R)
• M3: 1,470,397 km (0.086 R)
• M4: 1,969,157 km (0.1 R)
• M5: 2,633,222 km (0.111 R)
• M6: 3,098,022 km (0.031 R)
• M7: 3,586,011 km (0.117 R)
• M8: 4,107,658 km (0.098 R)
• M9: 5,159,481 km (0.07 R)
• M10: 5,715,985 km (0.114 R)
• M11: 6,699,890 km (0.109 R)
• M12: 7,469,721 km (0.079 R)
• M13: 7,987,330 km (0.113 R)
• M14: 8,587,217 km (0.096 R)
• M15: 9,094,803 km (0.118 R)
• M16: 10,739,182 km (0.072 R)
• M17: 11,329,047 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 279.9

Radius: 13.9

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.74 AU - 4.36 AU

Year: 4460 Days

Day: 6.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,331,395 km

• M1: 174,132 km (0.094 R)
• M2: 712,385 km (0.079 R)
• M3: 1,470,996 km (0.12 R)
• M4: 2,365,741 km (0.099 R)
• M5: 3,084,858 km (0.09 R)
• M6: 3,524,526 km (0.04 R)
• M7: 4,190,536 km (0.091 R)
• M8: 4,778,156 km (0.051 R)
• M9: 5,445,213 km (0.061 R)
• M10: 8,150,391 km (0.115 R)
• M11: 9,427,807 km (0.094 R)
• M12: 12,952,932 km (0.04 R)
• M13: 15,284,414 km (0.096 R)
• M14: 16,207,284 km (0.042 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31.8

Radius: 8.5

Gravity: 0.44 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 3.66 AU - 4.12 AU

Year: 5116 Days

Day: 14.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 57,331,395 km

• M1: 106,214 km (0.1 R)
• M2: 654,042 km (0.066 R)
• M3: 2,632,025 km (0.112 R)
• M4: 4,230,628 km (0.08 R)
• M5: 4,673,437 km (0.114 R)
• M6: 8,884,767 km (0.036 R)
• M7: 9,199,970 km (0.108 R)
• M8: 10,159,640 km (0.066 R)
• M9: 10,504,463 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 31

Radius: 8.8

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 4.09 AU - 5.09 AU

Year: 6558 Days

Day: 9.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,331,395 km

• M1: 111,151 km (0.106 R)
• M2: 964,906 km (0.066 R)
• M3: 3,460,648 km (0.119 R)
• M4: 4,607,914 km (0.119 R)
• M5: 5,082,438 km (0.079 R)
• M6: 7,605,406 km (0.077 R)
• M7: 8,821,188 km (0.097 R)
• M8: 9,182,467 km (0.105 R)
• M9: 10,558,767 km (0.041 R)
• M10: 11,704,687 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 274.4

Radius: 4.1

Gravity: 16.32 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 4.8 AU - 6.84 AU

Year: 9363 Days

Day: 22.1 Hours

Environment

Temp: -228 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 57,331,395 km

• M1: 51,013 km (0.065 R)
• M2: 213,925 km (0.1 R)
• M3: 523,593 km (0.118 R)
• M4: 808,277 km (0.119 R)
• M5: 1,116,449 km (0.103 R)
• M6: 1,498,671 km (0.119 R)
• M7: 1,789,191 km (0.076 R)
• M8: 2,327,444 km (0.113 R)
• M9: 5,368,020 km (0.119 R)
• M10: 5,761,313 km (0.066 R)
• M11: 6,639,154 km (0.068 R)
• M12: 8,615,341 km (0.078 R)
• M13: 9,324,136 km (0.081 R)
• M14: 9,758,718 km (0.062 R)
• M15: 11,191,866 km (0.11 R)
• M16: 11,386,492 km (0.109 R)
• M17: 11,983,837 km (0.119 R)
• M18: 12,497,406 km (0.097 R)
• M19: 14,698,739 km (0.108 R)
• M20: 14,991,053 km (0.038 R)
• M21: 16,699,162 km (0.113 R)
• M22: 20,351,743 km (0.098 R)
• M23: 20,861,124 km (0.032 R)
• M24: 21,528,330 km (0.115 R)
• M25: 22,439,980 km (0.091 R)
• M26: 22,671,857 km (0.103 R)
• M27: 23,615,370 km (0.083 R)
• M28: 25,329,014 km (0.114 R)
• M29: 28,186,483 km (0.086 R)
• M30: 29,832,059 km (0.085 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.7

Radius: 3.6

Gravity: 13.09 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 5.99 AU - 9.53 AU

Year: 14415 Days

Day: 16.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,331,395 km

• M1: 45,777 km (0.108 R)
• M2: 431,440 km (0.108 R)
• M3: 602,131 km (0.112 R)
• M4: 1,101,639 km (0.057 R)
• M5: 1,337,854 km (0.039 R)
• M6: 1,805,347 km (0.055 R)
• M7: 1,926,073 km (0.113 R)
• M8: 2,482,128 km (0.112 R)
• M9: 3,952,825 km (0.084 R)
• M10: 5,347,226 km (0.114 R)
• M11: 6,019,968 km (0.104 R)
• M12: 6,819,569 km (0.104 R)
• M13: 12,216,611 km (0.037 R)
• M14: 14,070,428 km (0.1 R)
• M15: 14,486,459 km (0.07 R)
• M16: 17,358,589 km (0.107 R)
• M17: 18,324,094 km (0.12 R)
• M18: 29,247,132 km (0.097 R)
• M19: 30,217,274 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.8

Radius: 5

Gravity: 20.59 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 6.28 AU - 9.72 AU

Year: 15089 Days

Day: 18.3 Hours

Environment

Temp: -238 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 57,331,395 km

• M1: 62,233 km (0.081 R)
• M2: 448,794 km (0.062 R)
• M3: 844,031 km (0.089 R)
• M4: 1,227,451 km (0.085 R)
• M5: 1,751,791 km (0.033 R)
• M6: 2,101,551 km (0.076 R)
• M7: 2,624,395 km (0.097 R)
• M8: 2,846,997 km (0.075 R)
• M9: 3,459,301 km (0.077 R)
• M10: 4,711,435 km (0.106 R)
• M11: 7,220,790 km (0.115 R)
• M12: 7,930,333 km (0.108 R)
• M13: 11,294,041 km (0.038 R)
• M14: 11,645,596 km (0.118 R)
• M15: 12,556,497 km (0.081 R)
• M16: 14,111,118 km (0.106 R)
• M17: 14,725,816 km (0.082 R)
• M18: 15,644,945 km (0.119 R)
• M19: 19,874,376 km (0.118 R)
• M20: 21,437,824 km (0.107 R)
• M21: 23,552,390 km (0.117 R)
• M22: 26,617,052 km (0.079 R)
• M23: 29,715,074 km (0.092 R)
• M24: 31,178,739 km (0.118 R)
• M25: 31,523,263 km (0.107 R)
• M26: 32,808,010 km (0.104 R)
• M27: 35,606,388 km (0.087 R)
• M28: 35,856,964 km (0.119 R)
• M29: 38,034,810 km (0.077 R)
• M30: 38,691,694 km (0.095 R)
• M31: 42,090,408 km (0.047 R)
• M32: 42,370,605 km (0.094 R)
• M33: 45,094,782 km (0.118 R)
• M34: 46,127,007 km (0.108 R)
• M35: 53,142,699 km (0.11 R)
• M36: 56,817,570 km (0.079 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 257 - 10,492 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit