🌌 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 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 666.4

Radius: 14.9

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 0.39 AU - 0.63 AU

Year: 247 Days

Day: 8.3 Hours

Environment

Temp: -139 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,826,222 km

• M1: 185,352 km (0.111 R)
• M2: 695,181 km (0.06 R)
• M3: 1,216,530 km (0.094 R)
• M4: 1,705,117 km (0.059 R)
• M5: 2,205,073 km (0.064 R)
• M6: 2,949,771 km (0.107 R)
• M7: 3,835,839 km (0.08 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316

Radius: 10.4

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.48 AU - 0.56 AU

Year: 254 Days

Day: 10.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,826,222 km

• M1: 129,552 km (0.099 R)
• M2: 600,037 km (0.093 R)
• M3: 1,049,728 km (0.099 R)
• M4: 1,374,804 km (0.098 R)
• M5: 1,714,840 km (0.091 R)
• M6: 2,118,755 km (0.093 R)
• M7: 2,657,905 km (0.064 R)
• M8: 3,175,514 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.1

Radius: 8.6

Gravity: 6.36 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.87 AU - 1.01 AU

Year: 618 Days

Day: 8.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 44,826,222 km

• M1: 106,962 km (0.054 R)
• M2: 489,783 km (0.106 R)
• M3: 817,104 km (0.083 R)
• M4: 1,177,036 km (0.109 R)
• M5: 1,748,500 km (0.078 R)
• M6: 2,142,690 km (0.057 R)
• M7: 2,414,809 km (0.073 R)
• M8: 2,699,494 km (0.076 R)
• M9: 3,041,175 km (0.087 R)
• M10: 3,423,996 km (0.037 R)
• M11: 4,344,921 km (0.104 R)
• M12: 4,816,004 km (0.094 R)
• M13: 5,253,728 km (0.089 R)
• M14: 5,682,326 km (0.114 R)
• M15: 6,115,711 km (0.091 R)
• M16: 6,570,937 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 132.3

Radius: 9.5

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.91 AU - 2.03 AU

Year: 1875 Days

Day: 13.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 44,826,222 km

• M1: 118,182 km (0.12 R)
• M2: 560,992 km (0.033 R)
• M3: 860,786 km (0.089 R)
• M4: 1,422,077 km (0.049 R)
• M5: 1,902,735 km (0.075 R)
• M6: 3,284,421 km (0.071 R)
• M7: 3,704,791 km (0.1 R)
• M8: 4,272,665 km (0.078 R)
• M9: 5,296,961 km (0.032 R)
• M10: 6,649,775 km (0.114 R)
• M11: 7,679,307 km (0.056 R)
• M12: 8,785,434 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820

Radius: 13.3

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.15 AU - 2.87 AU

Year: 2697 Days

Day: 14.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 8.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 44,826,222 km

• M1: 165,754 km (0.11 R)
• M2: 658,530 km (0.112 R)
• M3: 1,586,635 km (0.108 R)
• M4: 2,555,580 km (0.09 R)
• M5: 3,672,628 km (0.074 R)
• M6: 4,516,958 km (0.071 R)
• M7: 4,997,466 km (0.115 R)
• M8: 6,562,559 km (0.101 R)
• M9: 7,520,734 km (0.087 R)
• M10: 8,570,013 km (0.113 R)
• M11: 9,382,778 km (0.087 R)
• M12: 10,401,839 km (0.089 R)
• M13: 11,368,391 km (0.054 R)
• M14: 12,088,705 km (0.041 R)
• M15: 13,480,414 km (0.114 R)
• M16: 13,951,497 km (0.107 R)
• M17: 14,531,189 km (0.119 R)
• M18: 15,329,144 km (0.039 R)
• M19: 16,795,652 km (0.107 R)
• M20: 18,874,464 km (0.107 R)
• M21: 20,619,823 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 137.5

Radius: 9

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 2.84 AU - 4.2 AU

Year: 4479 Days

Day: 8.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 44,826,222 km

• M1: 114,592 km (0.057 R)
• M2: 489,634 km (0.115 R)
• M3: 1,501,963 km (0.098 R)
• M4: 2,067,293 km (0.051 R)
• M5: 2,406,431 km (0.116 R)
• M6: 2,812,141 km (0.115 R)
• M7: 3,619,072 km (0.09 R)
• M8: 4,593,253 km (0.109 R)
• M9: 6,304,802 km (0.06 R)
• M10: 6,644,389 km (0.092 R)
• M11: 7,561,724 km (0.11 R)
• M12: 10,275,429 km (0.105 R)
• M13: 11,889,291 km (0.084 R)
• M14: 14,102,741 km (0.062 R)
• M15: 16,381,266 km (0.08 R)

Asteroid Belt

Center: 4.12 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.5

Radius: 10.6

Gravity: 4.72 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 3.71 AU - 5.71 AU

Year: 6933 Days

Day: 7.3 Hours

Environment

Temp: -231 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 44,826,222 km

• M1: 131,796 km (0.113 R)
• M2: 497,563 km (0.049 R)
• M3: 1,013,675 km (0.106 R)
• M4: 1,554,621 km (0.12 R)
• M5: 2,396,857 km (0.084 R)
• M6: 3,698,059 km (0.104 R)
• M7: 4,581,884 km (0.069 R)
• M8: 5,753,684 km (0.084 R)
• M9: 6,938,349 km (0.114 R)
• M10: 7,966,835 km (0.105 R)
• M11: 8,517,804 km (0.088 R)
• M12: 9,962,321 km (0.1 R)
• M13: 11,366,895 km (0.069 R)
• M14: 13,221,609 km (0.097 R)
• M15: 13,604,430 km (0.115 R)
• M16: 14,107,378 km (0.083 R)
• M17: 14,622,893 km (0.09 R)
• M18: 15,032,492 km (0.114 R)
• M19: 15,630,734 km (0.065 R)
• M20: 15,997,398 km (0.101 R)
• M21: 16,811,360 km (0.056 R)
• M22: 22,440,279 km (0.079 R)
• M23: 23,539,823 km (0.091 R)
• M24: 24,102,910 km (0.096 R)
• M25: 24,922,856 km (0.111 R)
• M26: 25,423,560 km (0.106 R)
• M27: 25,846,024 km (0.12 R)
• M28: 27,760,877 km (0.032 R)
• M29: 28,844,265 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 446.8

Radius: 3.4

Gravity: 38.65 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 5.04 AU - 6.78 AU

Year: 9745 Days

Day: 24.9 Hours

Environment

Temp: -217 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,826,222 km

• M1: 42,336 km (0.113 R)
• M2: 194,328 km (0.103 R)
• M3: 664,813 km (0.09 R)
• M4: 891,155 km (0.066 R)
• M5: 1,177,784 km (0.109 R)
• M6: 2,463,428 km (0.084 R)
• M7: 4,093,447 km (0.095 R)
• M8: 4,556,302 km (0.101 R)
• M9: 6,577,220 km (0.097 R)
• M10: 7,601,217 km (0.11 R)
• M11: 9,216,126 km (0.092 R)
• M12: 20,706,290 km (0.118 R)
• M13: 22,465,112 km (0.105 R)
• M14: 23,128,728 km (0.045 R)
• M15: 27,199,286 km (0.089 R)
• M16: 28,526,968 km (0.045 R)
• M17: 31,722,378 km (0.118 R)
• M18: 32,662,302 km (0.116 R)
• M19: 32,979,599 km (0.056 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 275

Radius: 6.5

Gravity: 6.51 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 5.74 AU - 9.24 AU

Year: 13903 Days

Day: 23.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 44,826,222 km

• M1: 80,932 km (0.119 R)
• M2: 427,252 km (0.042 R)
• M3: 644,168 km (0.109 R)
• M4: 1,098,647 km (0.118 R)
• M5: 1,441,974 km (0.065 R)
• M6: 2,201,333 km (0.089 R)
• M7: 2,531,645 km (0.067 R)
• M8: 3,200,646 km (0.117 R)
• M9: 3,479,796 km (0.07 R)
• M10: 4,792,817 km (0.068 R)
• M11: 5,004,198 km (0.092 R)
• M12: 5,981,970 km (0.111 R)
• M13: 7,004,023 km (0.089 R)
• M14: 8,483,097 km (0.117 R)
• M15: 9,625,277 km (0.087 R)
• M16: 10,307,892 km (0.108 R)
• M17: 12,267,025 km (0.028 R)
• M18: 12,606,613 km (0.12 R)
• M19: 12,952,333 km (0.052 R)
• M20: 16,974,721 km (0.096 R)
• M21: 20,075,137 km (0.061 R)
• M22: 21,106,315 km (0.08 R)
• M23: 24,234,257 km (0.067 R)
• M24: 24,589,851 km (0.113 R)
• M25: 26,514,278 km (0.061 R)
• M26: 28,046,310 km (0.113 R)
• M27: 29,033,207 km (0.08 R)
• M28: 43,522,209 km (0.112 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 177.5

Radius: 4.3

Gravity: 9.6 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 8.42 AU - 9.22 AU

Year: 17766 Days

Day: 15.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 44,826,222 km

• M1: 80,932 km (0.101 R)
• M2: 254,616 km (0.038 R)
• M3: 703,858 km (0.1 R)
• M4: 915,240 km (0.092 R)
• M5: 1,238,371 km (0.067 R)
• M6: 1,506,899 km (0.077 R)
• M7: 2,177,397 km (0.09 R)
• M8: 2,510,252 km (0.101 R)
• M9: 3,789,912 km (0.09 R)
• M10: 8,171,784 km (0.089 R)
• M11: 9,155,689 km (0.105 R)
• M12: 9,342,686 km (0.086 R)
• M13: 9,484,655 km (0.091 R)
• M14: 21,546,581 km (0.046 R)
• M15: 23,496,739 km (0.1 R)
• M16: 29,333,599 km (0.087 R)
• M17: 31,298,717 km (0.096 R)
• M18: 34,127,762 km (0.118 R)
• M19: 43,233,635 km (0.037 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 18,109 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit