🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.7

Radius: 13.9

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 0.51 AU - 0.75 AU

Year: 333 Days

Day: 10.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 77,301,642 km

• M1: 172,935 km (0.104 R)
• M2: 723,156 km (0.076 R)
• M3: 1,251,685 km (0.076 R)
• M4: 1,911,562 km (0.036 R)
• M5: 2,427,225 km (0.059 R)
• M6: 3,006,319 km (0.092 R)
• M7: 3,533,203 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 386.4

Radius: 10.6

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.73 AU - 0.77 AU

Year: 433 Days

Day: 14.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,301,642 km

• M1: 131,796 km (0.037 R)
• M2: 667,356 km (0.109 R)
• M3: 1,002,755 km (0.118 R)
• M4: 1,587,084 km (0.085 R)
• M5: 2,352,726 km (0.098 R)
• M6: 3,304,916 km (0.093 R)
• M7: 3,678,013 km (0.11 R)
• M8: 4,537,004 km (0.116 R)
• M9: 4,870,308 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 979.5

Radius: 12.6

Gravity: 6.17 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 1.39 AU - 1.39 AU

Year: 1093 Days

Day: 8.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 77,301,642 km

• M1: 157,377 km (0.027 R)
• M2: 734,825 km (0.108 R)
• M3: 1,282,054 km (0.033 R)
• M4: 1,880,146 km (0.05 R)
• M5: 3,262,430 km (0.036 R)
• M6: 3,904,654 km (0.076 R)
• M7: 4,408,799 km (0.092 R)
• M8: 5,443,268 km (0.091 R)
• M9: 6,681,340 km (0.087 R)
• M10: 7,175,462 km (0.113 R)
• M11: 8,893,593 km (0.074 R)
• M12: 11,591,741 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 393.2

Radius: 12.5

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 1.62 AU - 1.9 AU

Year: 1557 Days

Day: 6.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 77,301,642 km

• M1: 159,920 km (0.116 R)
• M2: 564,134 km (0.048 R)
• M3: 1,104,631 km (0.098 R)
• M4: 1,551,779 km (0.063 R)
• M5: 1,946,418 km (0.084 R)
• M6: 2,600,011 km (0.104 R)
• M7: 3,485,182 km (0.109 R)
• M8: 4,690,043 km (0.074 R)
• M9: 5,207,651 km (0.063 R)
• M10: 6,335,320 km (0.077 R)
• M11: 7,066,854 km (0.04 R)
• M12: 8,613,995 km (0.12 R)
• M13: 10,536,178 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.5

Radius: 14.8

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 1.71 AU - 2.33 AU

Year: 1915 Days

Day: 12.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 77,301,642 km

• M1: 184,005 km (0.055 R)
• M2: 807,230 km (0.102 R)
• M3: 1,526,048 km (0.066 R)
• M4: 2,004,911 km (0.112 R)
• M5: 3,306,113 km (0.062 R)
• M6: 4,110,052 km (0.069 R)
• M7: 6,088,633 km (0.081 R)
• M8: 6,555,079 km (0.06 R)
• M9: 8,986,344 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 613

Radius: 15

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 3.91 AU - 5.53 AU

Year: 6838 Days

Day: 9.2 Hours

Environment

Temp: -221 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 77,301,642 km

• M1: 189,241 km (0.042 R)
• M2: 865,424 km (0.058 R)
• M3: 1,588,281 km (0.073 R)
• M4: 2,318,468 km (0.081 R)
• M5: 3,061,969 km (0.075 R)
• M6: 3,658,117 km (0.086 R)
• M7: 9,062,340 km (0.107 R)
• M8: 11,253,201 km (0.045 R)
• M9: 15,353,828 km (0.086 R)
• M10: 16,660,266 km (0.053 R)
• M11: 20,286,369 km (0.041 R)
• M12: 22,089,921 km (0.114 R)
• M13: 22,635,504 km (0.079 R)
• M14: 25,245,239 km (0.112 R)
• M15: 27,419,345 km (0.092 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.5

Radius: 12.9

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 3.69 AU - 6.15 AU

Year: 7277 Days

Day: 6.2 Hours

Environment

Temp: -227 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 77,301,642 km

• M1: 160,369 km (0.076 R)
• M2: 814,710 km (0.106 R)
• M3: 1,385,575 km (0.045 R)
• M4: 2,068,041 km (0.111 R)
• M5: 2,541,817 km (0.096 R)
• M6: 3,088,149 km (0.078 R)
• M7: 3,917,519 km (0.11 R)
• M8: 7,058,476 km (0.116 R)
• M9: 7,638,318 km (0.099 R)
• M10: 8,639,576 km (0.095 R)
• M11: 9,571,272 km (0.087 R)
• M12: 10,282,610 km (0.065 R)
• M13: 13,293,117 km (0.08 R)
• M14: 14,129,070 km (0.091 R)
• M15: 16,014,751 km (0.076 R)
• M16: 18,122,286 km (0.033 R)
• M17: 19,522,073 km (0.078 R)
• M18: 22,058,655 km (0.112 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 150.3

Radius: 4.5

Gravity: 7.42 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.21 AU - 6.69 AU

Year: 9678 Days

Day: 15.2 Hours

Environment

Temp: -235 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 77,301,642 km

• M1: 56,249 km (0.088 R)
• M2: 243,545 km (0.103 R)
• M3: 394,938 km (0.081 R)
• M4: 563,685 km (0.085 R)
• M5: 880,832 km (0.104 R)
• M6: 1,034,020 km (0.036 R)
• M7: 1,384,079 km (0.091 R)
• M8: 1,769,593 km (0.119 R)
• M9: 2,030,342 km (0.092 R)
• M10: 2,876,169 km (0.04 R)
• M11: 3,256,895 km (0.067 R)
• M12: 4,141,168 km (0.089 R)
• M13: 8,584,973 km (0.119 R)
• M14: 8,777,057 km (0.074 R)
• M15: 8,971,983 km (0.055 R)
• M16: 10,331,977 km (0.093 R)
• M17: 13,817,159 km (0.113 R)
• M18: 14,241,119 km (0.045 R)
• M19: 15,451,665 km (0.076 R)
• M20: 20,636,727 km (0.036 R)
• M21: 22,327,482 km (0.062 R)
• M22: 23,132,319 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 836.7

Radius: 5.5

Gravity: 27.66 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.39 AU - 7.19 AU

Year: 11799 Days

Day: 24 Hours

Environment

Temp: -223 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 77,301,642 km

• M1: 68,366 km (0.063 R)
• M2: 261,198 km (0.109 R)
• M3: 772,823 km (0.054 R)
• M4: 2,314,279 km (0.108 R)
• M5: 2,560,667 km (0.063 R)
• M6: 2,779,080 km (0.084 R)
• M7: 3,010,059 km (0.074 R)
• M8: 3,329,301 km (0.097 R)
• M9: 3,977,957 km (0.106 R)
• M10: 4,301,986 km (0.114 R)
• M11: 4,517,257 km (0.113 R)
• M12: 5,070,021 km (0.066 R)
• M13: 5,776,871 km (0.092 R)
• M14: 6,750,155 km (0.051 R)
• M15: 7,648,490 km (0.1 R)
• M16: 9,267,738 km (0.099 R)
• M17: 10,429,664 km (0.104 R)
• M18: 11,449,922 km (0.094 R)
• M19: 11,744,779 km (0.073 R)
• M20: 12,349,753 km (0.088 R)
• M21: 15,048,050 km (0.113 R)
• M22: 15,688,927 km (0.091 R)
• M23: 16,422,256 km (0.117 R)
• M24: 17,254,918 km (0.07 R)
• M25: 17,642,526 km (0.114 R)
• M26: 18,354,911 km (0.066 R)
• M27: 20,348,153 km (0.09 R)
• M28: 21,219,710 km (0.119 R)
• M29: 22,298,011 km (0.108 R)
• M30: 23,130,374 km (0.119 R)
• M31: 27,816,378 km (0.094 R)
• M32: 30,212,188 km (0.083 R)
• M33: 37,957,318 km (0.105 R)
• M34: 39,142,732 km (0.07 R)
• M35: 40,081,458 km (0.118 R)
• M36: 41,725,688 km (0.071 R)
• M37: 42,003,941 km (0.107 R)
• M38: 49,371,486 km (0.079 R)
• M39: 55,682,422 km (0.116 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 751.2

Radius: 6.8

Gravity: 16.25 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 7.52 AU - 11.5 AU

Year: 19557 Days

Day: 18.7 Hours

Environment

Temp: -242 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 77,301,642 km

• M1: 97,388 km (0.106 R)
• M2: 457,321 km (0.096 R)
• M3: 1,023,997 km (0.12 R)
• M4: 1,248,095 km (0.081 R)
• M5: 1,672,953 km (0.076 R)
• M6: 2,961,589 km (0.096 R)
• M7: 4,091,801 km (0.084 R)
• M8: 5,406,467 km (0.025 R)
• M9: 7,121,008 km (0.069 R)
• M10: 8,677,574 km (0.117 R)
• M11: 13,001,701 km (0.048 R)
• M12: 17,354,101 km (0.042 R)
• M13: 20,998,006 km (0.04 R)
• M14: 24,257,145 km (0.12 R)
• M15: 27,955,653 km (0.117 R)
• M16: 28,427,934 km (0.046 R)
• M17: 31,629,179 km (0.055 R)
• M18: 32,921,854 km (0.093 R)
• M19: 33,448,588 km (0.051 R)
• M20: 38,883,030 km (0.107 R)
• M21: 42,194,079 km (0.091 R)
• M22: 50,234,067 km (0.083 R)
• M23: 53,426,636 km (0.119 R)
• M24: 55,814,816 km (0.089 R)
• M25: 60,605,538 km (0.087 R)
• M26: 62,797,596 km (0.11 R)
• M27: 63,811,271 km (0.12 R)
• M28: 76,839,301 km (0.111 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 408 - 12,355 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit