🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 546.7

Radius: 12.9

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.65 AU - 0.91 AU

Year: 476 Days

Day: 8.9 Hours

Environment

Temp: -154 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 66,456,381 km

• M1: 160,369 km (0.12 R)
• M2: 568,921 km (0.073 R)
• M3: 972,237 km (0.118 R)
• M4: 1,513,033 km (0.104 R)
• M5: 2,226,166 km (0.087 R)
• M6: 2,822,613 km (0.063 R)
• M7: 3,393,777 km (0.108 R)
• M8: 4,054,401 km (0.106 R)
• M9: 4,637,534 km (0.095 R)
• M10: 5,181,472 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.2

Radius: 10.5

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 0.89 AU - 1.35 AU

Year: 818 Days

Day: 10 Hours

Environment

Temp: -185 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 66,456,381 km

• M1: 130,599 km (0.119 R)
• M2: 526,285 km (0.119 R)
• M3: 1,361,041 km (0.078 R)
• M4: 2,173,807 km (0.078 R)
• M5: 2,531,046 km (0.098 R)
• M6: 2,877,515 km (0.116 R)
• M7: 3,407,839 km (0.037 R)
• M8: 3,741,592 km (0.08 R)
• M9: 4,193,827 km (0.093 R)
• M10: 4,526,682 km (0.075 R)
• M11: 5,437,284 km (0.11 R)
• M12: 6,123,490 km (0.108 R)
• M13: 6,911,870 km (0.108 R)
• M14: 7,668,088 km (0.108 R)
• M15: 8,168,343 km (0.046 R)
• M16: 8,797,103 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 189.2

Radius: 12.7

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.82 AU - 4.7 AU

Year: 5033 Days

Day: 9.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 20.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 66,456,381 km

• M1: 158,275 km (0.09 R)
• M2: 560,992 km (0.118 R)
• M3: 1,095,056 km (0.096 R)
• M4: 1,609,523 km (0.105 R)
• M5: 2,027,949 km (0.044 R)
• M6: 2,462,979 km (0.077 R)
• M7: 2,881,105 km (0.111 R)
• M8: 3,598,726 km (0.117 R)
• M9: 4,284,932 km (0.1 R)
• M10: 5,513,729 km (0.099 R)
• M11: 6,210,256 km (0.115 R)
• M12: 7,023,171 km (0.051 R)
• M13: 8,291,911 km (0.109 R)
• M14: 8,860,682 km (0.118 R)
• M15: 13,692,394 km (0.085 R)
• M16: 14,110,071 km (0.099 R)
• M17: 14,776,530 km (0.094 R)
• M18: 16,587,262 km (0.045 R)
• M19: 17,168,899 km (0.084 R)
• M20: 19,168,274 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 744.7

Radius: 11.8

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.57 AU - 4.39 AU

Year: 5481 Days

Day: 8.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,456,381 km

• M1: 147,504 km (0.095 R)
• M2: 772,224 km (0.084 R)
• M3: 1,264,401 km (0.091 R)
• M4: 1,744,760 km (0.119 R)
• M5: 2,297,524 km (0.068 R)
• M6: 2,870,334 km (0.118 R)
• M7: 3,826,564 km (0.109 R)
• M8: 5,292,473 km (0.088 R)
• M9: 7,209,421 km (0.115 R)
• M10: 8,442,107 km (0.049 R)
• M11: 9,338,946 km (0.095 R)
• M12: 10,074,519 km (0.117 R)
• M13: 11,418,207 km (0.097 R)
• M14: 23,548,051 km (0.098 R)
• M15: 26,493,932 km (0.101 R)
• M16: 29,585,372 km (0.108 R)
• M17: 30,604,583 km (0.076 R)
• M18: 32,713,314 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 725.4

Radius: 6.5

Gravity: 17.17 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 5.43 AU - 6.41 AU

Year: 9942 Days

Day: 21.1 Hours

Environment

Temp: -217 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 66,456,381 km

• M1: 80,783 km (0.083 R)
• M2: 295,157 km (0.029 R)
• M3: 649,255 km (0.119 R)
• M4: 1,405,921 km (0.09 R)
• M5: 1,733,391 km (0.03 R)
• M6: 2,897,112 km (0.084 R)
• M7: 3,971,075 km (0.119 R)
• M8: 4,276,554 km (0.108 R)
• M9: 4,657,730 km (0.088 R)
• M10: 5,288,135 km (0.049 R)
• M11: 7,273,748 km (0.058 R)
• M12: 8,342,475 km (0.099 R)
• M13: 9,079,095 km (0.088 R)
• M14: 10,628,630 km (0.088 R)
• M15: 13,240,608 km (0.076 R)
• M16: 14,434,399 km (0.102 R)
• M17: 15,766,718 km (0.079 R)
• M18: 17,034,111 km (0.036 R)
• M19: 17,692,641 km (0.118 R)
• M20: 18,596,960 km (0.114 R)
• M21: 23,227,613 km (0.08 R)
• M22: 24,587,008 km (0.109 R)
• M23: 29,815,304 km (0.047 R)
• M24: 30,450,198 km (0.11 R)
• M25: 32,408,883 km (0.114 R)
• M26: 45,393,529 km (0.112 R)
• M27: 46,374,442 km (0.041 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 618.7

Radius: 5.5

Gravity: 20.45 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.4 AU - 6.98 AU

Year: 10630 Days

Day: 23.6 Hours

Environment

Temp: -237 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 66,456,381 km

• M1: 69,563 km (0.105 R)
• M2: 483,650 km (0.107 R)
• M3: 812,466 km (0.104 R)
• M4: 1,356,553 km (0.096 R)
• M5: 1,546,244 km (0.072 R)
• M6: 1,800,261 km (0.09 R)
• M7: 2,261,172 km (0.113 R)
• M8: 2,949,172 km (0.089 R)
• M9: 3,463,340 km (0.034 R)
• M10: 4,820,642 km (0.051 R)
• M11: 5,233,233 km (0.058 R)
• M12: 6,498,831 km (0.109 R)
• M13: 7,122,055 km (0.117 R)
• M14: 7,999,297 km (0.118 R)
• M15: 9,134,895 km (0.066 R)
• M16: 10,793,337 km (0.12 R)
• M17: 14,889,775 km (0.109 R)
• M18: 16,386,801 km (0.087 R)
• M19: 16,669,392 km (0.08 R)
• M20: 29,560,240 km (0.095 R)
• M21: 30,721,419 km (0.04 R)
• M22: 33,022,234 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 782.6

Radius: 4.8

Gravity: 33.97 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 5.67 AU - 7.45 AU

Year: 11598 Days

Day: 24.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 66,456,381 km

• M1: 59,690 km (0.117 R)
• M2: 420,968 km (0.078 R)
• M3: 823,536 km (0.116 R)
• M4: 1,196,334 km (0.091 R)
• M5: 1,393,355 km (0.095 R)
• M6: 1,658,442 km (0.089 R)
• M7: 1,870,273 km (0.086 R)
• M8: 2,428,721 km (0.099 R)
• M9: 4,830,814 km (0.045 R)
• M10: 7,217,948 km (0.105 R)
• M11: 9,102,881 km (0.049 R)
• M12: 10,400,343 km (0.11 R)
• M13: 16,017,145 km (0.073 R)
• M14: 16,235,408 km (0.107 R)
• M15: 17,741,559 km (0.108 R)
• M16: 18,849,631 km (0.106 R)
• M17: 22,359,047 km (0.044 R)
• M18: 26,992,542 km (0.034 R)
• M19: 33,872,548 km (0.044 R)
• M20: 34,112,054 km (0.087 R)
• M21: 35,573,027 km (0.095 R)
• M22: 41,286,619 km (0.119 R)
• M23: 54,652,740 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.15 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 191.1

Radius: 4.2

Gravity: 10.83 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 7.93 AU - 8.37 AU

Year: 16060 Days

Day: 16.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 66,456,381 km

• M1: 52,210 km (0.082 R)
• M2: 188,493 km (0.041 R)
• M3: 337,343 km (0.083 R)
• M4: 1,679,535 km (0.103 R)
• M5: 1,860,250 km (0.116 R)
• M6: 3,807,266 km (0.093 R)
• M7: 4,227,935 km (0.088 R)
• M8: 5,161,426 km (0.082 R)
• M9: 9,134,596 km (0.092 R)
• M10: 10,227,109 km (0.099 R)
• M11: 14,023,155 km (0.102 R)
• M12: 15,865,303 km (0.07 R)
• M13: 16,064,717 km (0.106 R)
• M14: 16,878,679 km (0.12 R)
• M15: 19,033,487 km (0.07 R)
• M16: 30,193,787 km (0.076 R)
• M17: 31,640,398 km (0.099 R)
• M18: 42,439,719 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.3

Radius: 7.9

Gravity: 9.62 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 8.27 AU - 8.95 AU

Year: 17439 Days

Day: 17.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 66,456,381 km

• M1: 98,286 km (0.064 R)
• M2: 375,191 km (0.118 R)
• M3: 1,098,198 km (0.056 R)
• M4: 2,212,104 km (0.084 R)
• M5: 2,526,558 km (0.105 R)
• M6: 4,473,874 km (0.072 R)
• M7: 5,712,395 km (0.099 R)
• M8: 6,348,934 km (0.106 R)
• M9: 6,856,669 km (0.115 R)
• M10: 8,746,240 km (0.117 R)
• M11: 9,865,980 km (0.084 R)
• M12: 12,130,443 km (0.112 R)
• M13: 13,315,258 km (0.102 R)
• M14: 13,726,801 km (0.103 R)
• M15: 15,012,595 km (0.092 R)
• M16: 16,611,946 km (0.106 R)
• M17: 17,008,979 km (0.04 R)
• M18: 20,325,563 km (0.084 R)
• M19: 23,054,677 km (0.113 R)
• M20: 23,748,363 km (0.103 R)
• M21: 25,073,202 km (0.116 R)
• M22: 26,662,380 km (0.119 R)
• M23: 30,867,576 km (0.091 R)
• M24: 32,075,579 km (0.115 R)
• M25: 34,973,289 km (0.078 R)
• M26: 37,631,045 km (0.11 R)
• M27: 41,719,555 km (0.099 R)
• M28: 42,305,679 km (0.112 R)
• M29: 48,473,300 km (0.032 R)
• M30: 49,284,121 km (0.086 R)
• M31: 49,610,843 km (0.062 R)
• M32: 57,532,798 km (0.025 R)
• M33: 58,258,946 km (0.078 R)
• M34: 62,172,426 km (0.072 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: 491 - 12,895 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit