🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.7

Radius: 10.5

Gravity: 1.46 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 0.46 AU - 0.72 AU

Year: 313 Days

Day: 11.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,055,861 km

• M1: 130,599 km (0.075 R)
• M2: 468,690 km (0.07 R)
• M3: 805,435 km (0.107 R)
• M4: 1,151,305 km (0.098 R)
• M5: 1,676,843 km (0.073 R)
• M6: 2,147,777 km (0.05 R)
• M7: 2,527,456 km (0.098 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441.5

Radius: 12

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.66 AU - 0.68 AU

Year: 379 Days

Day: 14 Hours

Environment

Temp: -162 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,055,861 km

• M1: 149,299 km (0.096 R)
• M2: 624,422 km (0.082 R)
• M3: 1,174,942 km (0.045 R)
• M4: 1,620,743 km (0.088 R)
• M5: 1,995,187 km (0.093 R)
• M6: 2,394,164 km (0.083 R)
• M7: 2,770,553 km (0.11 R)
• M8: 4,600,583 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 12.8

Radius: 10.4

Gravity: 0.12 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.25 AU - 1.43 AU

Year: 1071 Days

Day: 13.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 69,055,861 km

• M1: 138,378 km (0.075 R)
• M2: 553,363 km (0.081 R)
• M3: 1,526,347 km (0.065 R)
• M4: 2,060,112 km (0.071 R)
• M5: 2,636,662 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.8

Radius: 10.7

Gravity: 5.68 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.46 AU - 1.72 AU

Year: 1384 Days

Day: 13.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,055,861 km

• M1: 134,040 km (0.062 R)
• M2: 493,972 km (0.076 R)
• M3: 919,578 km (0.095 R)
• M4: 1,887,028 km (0.112 R)
• M5: 2,922,993 km (0.093 R)
• M6: 3,834,642 km (0.114 R)
• M7: 4,357,038 km (0.116 R)
• M8: 5,717,780 km (0.065 R)
• M9: 7,188,626 km (0.08 R)
• M10: 7,579,526 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.3

Radius: 12.7

Gravity: 5.93 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.39 AU - 3.45 AU

Year: 3444 Days

Day: 7.2 Hours

Environment

Temp: -215 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,055,861 km

• M1: 157,975 km (0.081 R)
• M2: 738,415 km (0.097 R)
• M3: 1,141,581 km (0.106 R)
• M4: 1,733,989 km (0.07 R)
• M5: 2,448,020 km (0.028 R)
• M6: 2,997,642 km (0.078 R)
• M7: 5,080,344 km (0.09 R)
• M8: 5,669,311 km (0.069 R)
• M9: 6,857,267 km (0.067 R)
• M10: 8,027,272 km (0.085 R)
• M11: 8,494,167 km (0.12 R)
• M12: 8,979,313 km (0.102 R)
• M13: 9,601,790 km (0.108 R)
• M14: 10,674,706 km (0.117 R)
• M15: 11,240,335 km (0.108 R)
• M16: 11,825,861 km (0.082 R)
• M17: 12,766,383 km (0.102 R)
• M18: 17,033,214 km (0.086 R)
• M19: 17,746,197 km (0.117 R)
• M20: 18,171,205 km (0.092 R)
• M21: 20,135,873 km (0.108 R)
• M22: 23,597,119 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.4

Radius: 8.4

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.39 AU - 4.77 AU

Year: 6766 Days

Day: 6.2 Hours

Environment

Temp: -219 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 69,055,861 km

• M1: 104,569 km (0.107 R)
• M2: 366,814 km (0.088 R)
• M3: 690,095 km (0.08 R)
• M4: 1,034,320 km (0.087 R)
• M5: 1,949,111 km (0.076 R)
• M6: 2,330,286 km (0.113 R)
• M7: 3,988,130 km (0.117 R)
• M8: 4,252,170 km (0.092 R)
• M9: 5,200,022 km (0.101 R)
• M10: 5,663,925 km (0.114 R)
• M11: 6,876,416 km (0.107 R)
• M12: 9,089,118 km (0.092 R)
• M13: 10,023,805 km (0.112 R)
• M14: 10,834,925 km (0.038 R)
• M15: 12,283,182 km (0.107 R)
• M16: 12,897,132 km (0.11 R)
• M17: 13,965,560 km (0.069 R)
• M18: 14,521,465 km (0.106 R)
• M19: 15,975,706 km (0.093 R)
• M20: 17,588,521 km (0.061 R)
• M21: 22,921,535 km (0.056 R)
• M22: 27,737,988 km (0.11 R)
• M23: 29,241,746 km (0.119 R)
• M24: 29,967,894 km (0.08 R)
• M25: 30,520,359 km (0.084 R)
• M26: 31,456,094 km (0.036 R)
• M27: 31,740,629 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 262.4

Radius: 3.2

Gravity: 25.63 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 5.49 AU - 7.51 AU

Year: 11439 Days

Day: 24.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,055,861 km

• M1: 39,793 km (0.065 R)
• M2: 146,456 km (0.114 R)
• M3: 527,183 km (0.111 R)
• M4: 670,498 km (0.115 R)
• M5: 822,190 km (0.087 R)
• M6: 957,875 km (0.086 R)
• M7: 1,066,782 km (0.115 R)
• M8: 1,469,799 km (0.093 R)
• M9: 1,588,131 km (0.062 R)
• M10: 1,966,464 km (0.068 R)
• M11: 2,126,833 km (0.107 R)
• M12: 2,738,688 km (0.119 R)
• M13: 3,301,924 km (0.108 R)
• M14: 3,414,123 km (0.102 R)
• M15: 4,325,622 km (0.104 R)
• M16: 5,512,233 km (0.083 R)
• M17: 6,507,059 km (0.105 R)
• M18: 7,384,450 km (0.071 R)
• M19: 7,693,669 km (0.116 R)
• M20: 8,051,806 km (0.057 R)
• M21: 8,255,558 km (0.117 R)
• M22: 8,379,426 km (0.086 R)
• M23: 10,826,398 km (0.078 R)
• M24: 12,105,310 km (0.087 R)
• M25: 13,310,919 km (0.07 R)
• M26: 19,007,307 km (0.114 R)
• M27: 23,813,139 km (0.112 R)
• M28: 30,143,223 km (0.102 R)
• M29: 34,326,279 km (0.066 R)
• M30: 34,646,717 km (0.077 R)
• M31: 35,293,578 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.3

Radius: 4.7

Gravity: 18.39 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 9.4 AU - 10.98 AU

Year: 22453 Days

Day: 16.8 Hours

Environment

Temp: -240 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 69,055,861 km

• M1: 60,288 km (0.073 R)
• M2: 368,460 km (0.118 R)
• M3: 1,327,980 km (0.091 R)
• M4: 1,672,504 km (0.081 R)
• M5: 1,847,833 km (0.048 R)
• M6: 2,054,876 km (0.069 R)
• M7: 2,515,488 km (0.079 R)
• M8: 2,891,727 km (0.111 R)
• M9: 3,042,073 km (0.103 R)
• M10: 3,304,467 km (0.11 R)
• M11: 3,639,118 km (0.06 R)
• M12: 3,965,241 km (0.098 R)
• M13: 4,779,054 km (0.054 R)
• M14: 7,360,066 km (0.052 R)
• M15: 14,157,194 km (0.076 R)
• M16: 15,719,595 km (0.099 R)
• M17: 17,393,296 km (0.08 R)
• M18: 18,145,773 km (0.075 R)
• M19: 18,401,286 km (0.102 R)
• M20: 25,067,816 km (0.093 R)
• M21: 33,307,667 km (0.105 R)
• M22: 39,367,876 km (0.097 R)
• M23: 40,227,615 km (0.106 R)
• M24: 43,335,212 km (0.053 R)
• M25: 43,639,195 km (0.118 R)
• M26: 45,180,801 km (0.066 R)
• M27: 46,598,989 km (0.064 R)
• M28: 46,758,460 km (0.09 R)
• M29: 51,540,356 km (0.076 R)
• M30: 53,262,078 km (0.11 R)
• M31: 54,313,153 km (0.116 R)
• M32: 57,366,595 km (0.118 R)
• M33: 59,028,477 km (0.103 R)
• M34: 62,254,705 km (0.062 R)
• M35: 64,799,664 km (0.063 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 473 - 14,936 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit