🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.2

Radius: 8.3

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.66 AU - 1 AU

Year: 488 Days

Day: 8.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 71,456,297 km

• M1: 103,223 km (0.113 R)
• M2: 480,359 km (0.04 R)
• M3: 1,484,160 km (0.106 R)
• M4: 2,058,018 km (0.068 R)
• M5: 2,529,251 km (0.105 R)
• M6: 2,933,315 km (0.051 R)
• M7: 3,202,292 km (0.118 R)
• M8: 3,721,397 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.2

Radius: 13.8

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 1.04 AU - 1.44 AU

Year: 892 Days

Day: 7.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 71,456,297 km

• M1: 171,589 km (0.104 R)
• M2: 676,182 km (0.063 R)
• M3: 1,273,377 km (0.072 R)
• M4: 1,837,361 km (0.12 R)
• M5: 2,442,933 km (0.099 R)
• M6: 3,279,036 km (0.082 R)
• M7: 3,764,630 km (0.099 R)
• M8: 4,544,783 km (0.088 R)
• M9: 5,015,867 km (0.111 R)
• M10: 5,448,055 km (0.118 R)
• M11: 6,018,921 km (0.076 R)
• M12: 6,548,348 km (0.056 R)
• M13: 7,216,152 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.4

Radius: 12

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.63 AU - 1.89 AU

Year: 1508 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,456,297 km

• M1: 149,299 km (0.111 R)
• M2: 548,127 km (0.072 R)
• M3: 945,459 km (0.095 R)
• M4: 1,664,576 km (0.109 R)
• M5: 2,200,285 km (0.064 R)
• M6: 2,672,865 km (0.116 R)
• M7: 4,034,804 km (0.105 R)
• M8: 4,513,667 km (0.097 R)
• M9: 5,184,913 km (0.101 R)
• M10: 5,943,224 km (0.069 R)
• M11: 6,473,698 km (0.104 R)
• M12: 7,229,915 km (0.114 R)
• M13: 7,604,209 km (0.098 R)
• M14: 8,017,847 km (0.104 R)
• M15: 8,638,828 km (0.084 R)
• M16: 9,674,943 km (0.114 R)
• M17: 10,130,319 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 516.3

Radius: 10.2

Gravity: 4.96 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 2.99 AU - 3.19 AU

Year: 3507 Days

Day: 14.5 Hours

Environment

Temp: -196 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 71,456,297 km

• M1: 126,859 km (0.093 R)
• M2: 459,864 km (0.039 R)
• M3: 794,514 km (0.078 R)
• M4: 1,282,503 km (0.077 R)
• M5: 2,079,111 km (0.087 R)
• M6: 2,482,277 km (0.059 R)
• M7: 3,021,578 km (0.112 R)
• M8: 3,392,581 km (0.114 R)
• M9: 3,715,114 km (0.029 R)
• M10: 4,269,822 km (0.11 R)
• M11: 4,669,847 km (0.077 R)
• M12: 5,860,497 km (0.084 R)
• M13: 6,818,821 km (0.079 R)
• M14: 9,896,498 km (0.105 R)
• M15: 12,773,265 km (0.115 R)
• M16: 13,093,254 km (0.084 R)
• M17: 13,512,428 km (0.089 R)
• M18: 14,037,067 km (0.114 R)
• M19: 15,279,777 km (0.116 R)
• M20: 16,648,597 km (0.08 R)
• M21: 16,975,768 km (0.082 R)
• M22: 17,755,771 km (0.097 R)
• M23: 18,327,534 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.2

Radius: 11.2

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 2.42 AU - 3.78 AU

Year: 3524 Days

Day: 12.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 71,456,297 km

• M1: 139,425 km (0.071 R)
• M2: 729,888 km (0.052 R)
• M3: 1,443,619 km (0.042 R)
• M4: 1,834,668 km (0.091 R)
• M5: 3,370,440 km (0.072 R)
• M6: 5,707,458 km (0.115 R)
• M7: 7,048,603 km (0.081 R)
• M8: 7,714,762 km (0.106 R)
• M9: 8,792,316 km (0.09 R)
• M10: 9,637,095 km (0.117 R)
• M11: 11,943,744 km (0.098 R)
• M12: 13,428,503 km (0.054 R)
• M13: 14,740,925 km (0.093 R)
• M14: 15,578,374 km (0.086 R)
• M15: 15,983,336 km (0.079 R)
• M16: 18,562,553 km (0.07 R)

Planet 6 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 183.8

Radius: 4.7

Gravity: 8.32 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 9.24 AU - 10.1 AU

Year: 19416 Days

Day: 19.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 17.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 71,456,297 km

• M1: 59,091 km (0.078 R)
• M2: 367,712 km (0.069 R)
• M3: 529,427 km (0.097 R)
• M4: 800,349 km (0.1 R)
• M5: 1,677,890 km (0.103 R)
• M6: 2,822,313 km (0.095 R)
• M7: 3,322,419 km (0.095 R)
• M8: 3,493,260 km (0.072 R)
• M9: 4,921,620 km (0.12 R)
• M10: 5,507,146 km (0.074 R)
• M11: 6,815,679 km (0.067 R)
• M12: 7,132,378 km (0.088 R)
• M13: 10,232,644 km (0.104 R)
• M14: 10,966,571 km (0.111 R)
• M15: 11,511,855 km (0.073 R)
• M16: 12,421,710 km (0.116 R)
• M17: 13,134,843 km (0.107 R)
• M18: 19,375,019 km (0.103 R)
• M19: 20,170,879 km (0.062 R)
• M20: 24,756,204 km (0.08 R)
• M21: 25,221,603 km (0.089 R)
• M22: 31,054,124 km (0.037 R)
• M23: 33,256,803 km (0.083 R)
• M24: 36,034,836 km (0.117 R)
• M25: 40,229,560 km (0.096 R)
• M26: 41,261,636 km (0.109 R)
• M27: 41,915,678 km (0.061 R)
• M28: 43,648,470 km (0.04 R)
• M29: 47,684,620 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 421.5

Radius: 4.4

Gravity: 21.77 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 8.52 AU - 13.26 AU

Year: 23204 Days

Day: 21.3 Hours

Environment

Temp: -221 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,456,297 km

• M1: 57,595 km (0.077 R)
• M2: 1,130,661 km (0.114 R)
• M3: 1,383,481 km (0.111 R)
• M4: 2,811,842 km (0.09 R)
• M5: 4,097,635 km (0.095 R)
• M6: 4,624,369 km (0.11 R)
• M7: 6,431,960 km (0.088 R)
• M8: 6,736,243 km (0.032 R)
• M9: 7,852,841 km (0.058 R)
• M10: 8,403,660 km (0.078 R)
• M11: 8,558,345 km (0.073 R)
• M12: 9,195,781 km (0.08 R)
• M13: 12,393,585 km (0.116 R)
• M14: 13,277,858 km (0.098 R)
• M15: 15,247,314 km (0.058 R)
• M16: 15,787,961 km (0.09 R)
• M17: 17,071,660 km (0.093 R)
• M18: 17,823,539 km (0.047 R)
• M19: 23,921,148 km (0.114 R)
• M20: 24,128,042 km (0.076 R)
• M21: 30,056,905 km (0.036 R)
• M22: 31,646,382 km (0.042 R)
• M23: 32,020,975 km (0.108 R)
• M24: 41,177,113 km (0.103 R)
• M25: 50,052,007 km (0.091 R)
• M26: 55,112,155 km (0.101 R)
• M27: 55,292,420 km (0.111 R)
• M28: 57,672,522 km (0.08 R)
• M29: 63,226,194 km (0.043 R)
• M30: 66,641,962 km (0.103 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 263 - 19,722 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit