🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.8

Radius: 12.3

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.68 AU - 0.92 AU

Year: 477 Days

Day: 9.1 Hours

Environment

Temp: -155 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 55,572,214 km

• M1: 153,039 km (0.085 R)
• M2: 615,296 km (0.066 R)
• M3: 1,086,978 km (0.072 R)
• M4: 1,529,638 km (0.11 R)
• M5: 2,224,371 km (0.116 R)
• M6: 2,610,632 km (0.113 R)
• M7: 3,258,242 km (0.053 R)
• M8: 3,683,997 km (0.116 R)
• M9: 5,238,917 km (0.115 R)
• M10: 5,809,185 km (0.044 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 746.2

Radius: 10.2

Gravity: 7.17 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 1.42 AU - 1.58 AU

Year: 1225 Days

Day: 6.2 Hours

Environment

Temp: -189 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,572,214 km

• M1: 131,048 km (0.1 R)
• M2: 448,644 km (0.116 R)
• M3: 1,070,672 km (0.101 R)
• M4: 1,517,371 km (0.106 R)
• M5: 1,878,800 km (0.098 R)
• M6: 2,356,316 km (0.094 R)
• M7: 2,859,414 km (0.114 R)
• M8: 3,715,263 km (0.102 R)
• M9: 4,238,407 km (0.082 R)
• M10: 4,771,723 km (0.119 R)
• M11: 5,796,020 km (0.054 R)
• M12: 7,135,519 km (0.039 R)
• M13: 7,625,003 km (0.079 R)
• M14: 8,054,349 km (0.092 R)
• M15: 8,815,653 km (0.118 R)
• M16: 10,744,717 km (0.096 R)
• M17: 11,319,472 km (0.118 R)
• M18: 12,129,545 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.6

Radius: 9.3

Gravity: 9.13 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.61 AU - 1.81 AU

Year: 1491 Days

Day: 8.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 55,572,214 km

• M1: 117,135 km (0.078 R)
• M2: 727,046 km (0.111 R)
• M3: 1,132,007 km (0.078 R)
• M4: 1,589,627 km (0.094 R)
• M5: 2,226,166 km (0.11 R)
• M6: 2,590,437 km (0.089 R)
• M7: 2,936,307 km (0.046 R)
• M8: 3,859,475 km (0.099 R)
• M9: 8,159,367 km (0.094 R)
• M10: 8,907,356 km (0.098 R)
• M11: 11,757,944 km (0.099 R)
• M12: 12,133,434 km (0.073 R)
• M13: 13,027,581 km (0.103 R)
• M14: 13,511,231 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90

Radius: 12.4

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.83 AU - 1.85 AU

Year: 1664 Days

Day: 10.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,572,214 km

• M1: 154,235 km (0.11 R)
• M2: 843,283 km (0.072 R)
• M3: 1,841,550 km (0.109 R)
• M4: 2,641,001 km (0.107 R)
• M5: 3,224,133 km (0.113 R)
• M6: 5,329,574 km (0.085 R)
• M7: 6,927,877 km (0.104 R)
• M8: 7,373,230 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 312

Radius: 12.6

Gravity: 1.97 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.74 AU - 2.62 AU

Year: 2146 Days

Day: 10.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,572,214 km

• M1: 156,629 km (0.11 R)
• M2: 683,961 km (0.079 R)
• M3: 1,665,623 km (0.073 R)
• M4: 3,035,341 km (0.119 R)
• M5: 4,228,384 km (0.076 R)
• M6: 6,144,284 km (0.119 R)
• M7: 10,496,535 km (0.101 R)
• M8: 11,823,917 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 112.8

Radius: 11.3

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 2.25 AU - 3.09 AU

Year: 2909 Days

Day: 11.5 Hours

Environment

Temp: -206 °C

Axial Tilt: 150.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,572,214 km

• M1: 140,622 km (0.049 R)
• M2: 1,059,153 km (0.097 R)
• M3: 1,497,624 km (0.029 R)
• M4: 3,372,086 km (0.111 R)
• M5: 4,739,410 km (0.099 R)
• M6: 6,562,260 km (0.106 R)
• M7: 9,514,724 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.6

Radius: 12.7

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 2.58 AU - 3.24 AU

Year: 3310 Days

Day: 14.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 85.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 55,572,214 km

• M1: 157,975 km (0.066 R)
• M2: 1,313,320 km (0.113 R)
• M3: 1,778,419 km (0.028 R)
• M4: 2,325,948 km (0.085 R)
• M5: 2,951,416 km (0.078 R)
• M6: 3,368,046 km (0.092 R)
• M7: 3,884,010 km (0.057 R)
• M8: 4,386,658 km (0.105 R)
• M9: 5,346,628 km (0.059 R)
• M10: 5,863,489 km (0.112 R)
• M11: 6,643,043 km (0.079 R)
• M12: 7,490,515 km (0.116 R)
• M13: 9,218,071 km (0.103 R)
• M14: 10,588,238 km (0.066 R)
• M15: 11,197,700 km (0.104 R)
• M16: 12,397,924 km (0.104 R)
• M17: 12,937,822 km (0.106 R)
• M18: 14,113,213 km (0.071 R)
• M19: 18,469,952 km (0.058 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 955.1

Radius: 11.8

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.58 AU - 3.94 AU

Year: 4862 Days

Day: 13.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 55,572,214 km

• M1: 170,841 km (0.084 R)
• M2: 726,148 km (0.058 R)
• M3: 1,119,291 km (0.092 R)
• M4: 1,736,532 km (0.057 R)
• M5: 2,132,368 km (0.107 R)
• M6: 2,860,012 km (0.055 R)
• M7: 3,355,331 km (0.098 R)
• M8: 4,096,588 km (0.119 R)
• M9: 4,862,380 km (0.031 R)
• M10: 7,889,343 km (0.103 R)
• M11: 8,467,838 km (0.116 R)
• M12: 9,241,109 km (0.089 R)
• M13: 11,022,670 km (0.086 R)
• M14: 14,053,224 km (0.116 R)
• M15: 16,522,786 km (0.088 R)
• M16: 20,461,847 km (0.073 R)
• M17: 20,894,634 km (0.113 R)
• M18: 21,853,257 km (0.12 R)
• M19: 22,918,095 km (0.082 R)
• M20: 23,699,594 km (0.108 R)
• M21: 24,987,033 km (0.093 R)
• M22: 27,788,552 km (0.118 R)
• M23: 29,310,561 km (0.074 R)
• M24: 30,418,034 km (0.095 R)
• M25: 32,325,257 km (0.117 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 939

Radius: 11.7

Gravity: 6.86 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 3.77 AU - 4.27 AU

Year: 5375 Days

Day: 12.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 55,572,214 km

• M1: 145,559 km (0.094 R)
• M2: 618,138 km (0.099 R)
• M3: 1,018,313 km (0.06 R)
• M4: 1,428,211 km (0.058 R)
• M5: 1,850,077 km (0.045 R)
• M6: 2,224,820 km (0.062 R)
• M7: 2,614,821 km (0.074 R)
• M8: 3,234,456 km (0.031 R)
• M9: 3,831,650 km (0.113 R)
• M10: 4,795,509 km (0.112 R)
• M11: 5,483,360 km (0.059 R)
• M12: 6,985,024 km (0.064 R)
• M13: 7,641,758 km (0.046 R)
• M14: 8,180,610 km (0.11 R)
• M15: 9,206,103 km (0.072 R)
• M16: 10,132,114 km (0.113 R)
• M17: 11,167,631 km (0.102 R)
• M18: 11,561,223 km (0.057 R)
• M19: 12,958,616 km (0.101 R)
• M20: 14,235,434 km (0.096 R)
• M21: 15,351,883 km (0.103 R)
• M22: 16,024,475 km (0.119 R)
• M23: 17,494,274 km (0.083 R)
• M24: 19,686,182 km (0.046 R)
• M25: 25,024,582 km (0.067 R)
• M26: 26,911,161 km (0.084 R)
• M27: 27,352,774 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.8

Radius: 7.4

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 8.63 AU - 10.11 AU

Year: 19127 Days

Day: 22.2 Hours

Environment

Temp: -239 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 55,572,214 km

• M1: 101,727 km (0.112 R)
• M2: 394,490 km (0.098 R)
• M3: 849,417 km (0.039 R)
• M4: 1,184,067 km (0.089 R)
• M5: 1,620,145 km (0.109 R)
• M6: 2,789,851 km (0.109 R)
• M7: 3,589,751 km (0.081 R)
• M8: 5,318,055 km (0.102 R)
• M9: 6,460,683 km (0.12 R)
• M10: 7,068,799 km (0.06 R)
• M11: 9,835,162 km (0.079 R)
• M12: 11,256,342 km (0.115 R)
• M13: 11,956,311 km (0.09 R)
• M14: 12,377,877 km (0.103 R)
• M15: 17,230,683 km (0.1 R)
• M16: 17,846,428 km (0.119 R)
• M17: 19,615,273 km (0.049 R)
• M18: 23,779,778 km (0.037 R)
• M19: 24,639,218 km (0.105 R)
• M20: 25,717,819 km (0.077 R)
• M21: 28,391,432 km (0.078 R)
• M22: 36,625,897 km (0.042 R)
• M23: 40,537,133 km (0.089 R)
• M24: 42,038,198 km (0.103 R)
• M25: 43,293,773 km (0.047 R)
• M26: 49,330,945 km (0.093 R)
• M27: 50,103,468 km (0.063 R)
• M28: 51,514,326 km (0.103 R)
• M29: 53,112,929 km (0.119 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 470 - 11,797 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit