🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.1

Radius: 11.1

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.44 AU - 0.58 AU

Year: 251 Days

Day: 6.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,443,842 km

• M1: 138,079 km (0.094 R)
• M2: 518,805 km (0.114 R)
• M3: 955,930 km (0.065 R)
• M4: 1,334,712 km (0.09 R)
• M5: 1,821,504 km (0.064 R)
• M6: 2,272,990 km (0.111 R)
• M7: 2,654,315 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 460.6

Radius: 10.2

Gravity: 4.43 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 0.53 AU - 0.69 AU

Year: 329 Days

Day: 7.1 Hours

Environment

Temp: -150 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,443,842 km

• M1: 128,505 km (0.095 R)
• M2: 631,153 km (0.053 R)
• M3: 1,123,929 km (0.053 R)
• M4: 1,442,273 km (0.063 R)
• M5: 2,205,222 km (0.107 R)
• M6: 2,633,072 km (0.091 R)
• M7: 4,297,797 km (0.098 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.6

Radius: 11.7

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.9 AU - 0.96 AU

Year: 619 Days

Day: 8.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 75,443,842 km

• M1: 148,850 km (0.064 R)
• M2: 571,314 km (0.102 R)
• M3: 1,471,744 km (0.072 R)
• M4: 2,474,947 km (0.083 R)
• M5: 3,276,493 km (0.082 R)
• M6: 4,092,549 km (0.069 R)
• M7: 5,231,288 km (0.063 R)
• M8: 6,927,429 km (0.111 R)
• M9: 7,297,683 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.3

Radius: 10.7

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.86 AU - 2.24 AU

Year: 2026 Days

Day: 6.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,443,842 km

• M1: 133,591 km (0.083 R)
• M2: 614,698 km (0.085 R)
• M3: 993,330 km (0.086 R)
• M4: 1,644,380 km (0.043 R)
• M5: 2,417,502 km (0.084 R)
• M6: 2,788,504 km (0.099 R)
• M7: 5,925,572 km (0.088 R)
• M8: 6,512,743 km (0.066 R)
• M9: 7,039,477 km (0.097 R)
• M10: 9,168,704 km (0.12 R)
• M11: 9,954,841 km (0.09 R)
• M12: 10,364,440 km (0.076 R)
• M13: 11,420,900 km (0.118 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 912.6

Radius: 10.9

Gravity: 7.68 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.18 AU - 3.26 AU

Year: 3096 Days

Day: 13.6 Hours

Environment

Temp: -207 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 75,443,842 km

• M1: 135,536 km (0.081 R)
• M2: 577,298 km (0.079 R)
• M3: 922,121 km (0.112 R)
• M4: 1,978,282 km (0.086 R)
• M5: 2,675,857 km (0.098 R)
• M6: 3,172,223 km (0.101 R)
• M7: 4,000,097 km (0.081 R)
• M8: 4,557,649 km (0.064 R)
• M9: 5,773,879 km (0.073 R)
• M10: 6,457,691 km (0.059 R)
• M11: 7,194,760 km (0.1 R)
• M12: 7,750,217 km (0.052 R)
• M13: 9,941,826 km (0.119 R)
• M14: 10,924,534 km (0.041 R)
• M15: 11,791,903 km (0.064 R)
• M16: 12,704,450 km (0.076 R)
• M17: 13,274,268 km (0.106 R)
• M18: 15,510,606 km (0.065 R)
• M19: 17,058,047 km (0.117 R)
• M20: 18,645,430 km (0.1 R)
• M21: 19,134,016 km (0.101 R)
• M22: 19,883,053 km (0.066 R)
• M23: 20,457,658 km (0.114 R)
• M24: 20,912,137 km (0.118 R)
• M25: 21,976,226 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 404.7

Radius: 8.6

Gravity: 5.47 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.13 AU - 3.39 AU

Year: 3165 Days

Day: 6 Hours

Environment

Temp: -212 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,443,842 km

• M1: 106,962 km (0.11 R)
• M2: 393,742 km (0.092 R)
• M3: 973,433 km (0.066 R)
• M4: 1,563,148 km (0.057 R)
• M5: 2,122,644 km (0.114 R)
• M6: 2,456,547 km (0.104 R)
• M7: 2,871,980 km (0.098 R)
• M8: 4,406,106 km (0.092 R)
• M9: 5,160,528 km (0.086 R)
• M10: 6,024,306 km (0.099 R)
• M11: 6,810,593 km (0.112 R)
• M12: 8,227,733 km (0.061 R)
• M13: 8,954,480 km (0.084 R)
• M14: 9,580,397 km (0.116 R)
• M15: 10,611,725 km (0.098 R)
• M16: 13,199,918 km (0.05 R)
• M17: 13,646,318 km (0.11 R)
• M18: 14,381,292 km (0.071 R)
• M19: 14,997,785 km (0.086 R)
• M20: 16,796,849 km (0.06 R)
• M21: 17,856,151 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.3

Radius: 12.1

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 3.26 AU - 3.72 AU

Year: 4500 Days

Day: 13.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,443,842 km

• M1: 150,495 km (0.118 R)
• M2: 575,952 km (0.04 R)
• M3: 1,200,822 km (0.118 R)
• M4: 1,737,280 km (0.103 R)
• M5: 2,866,894 km (0.045 R)
• M6: 3,878,774 km (0.077 R)
• M7: 5,091,564 km (0.101 R)
• M8: 5,708,505 km (0.114 R)
• M9: 6,798,924 km (0.104 R)
• M10: 9,903,229 km (0.062 R)
• M11: 10,396,454 km (0.027 R)
• M12: 11,932,973 km (0.09 R)
• M13: 12,535,554 km (0.104 R)
• M14: 15,151,572 km (0.036 R)
• M15: 16,429,437 km (0.095 R)
• M16: 18,112,113 km (0.075 R)
• M17: 19,198,792 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 909.6

Radius: 6.5

Gravity: 21.53 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 7.29 AU - 9.73 AU

Year: 17136 Days

Day: 19.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 75,443,842 km

• M1: 80,932 km (0.089 R)
• M2: 315,352 km (0.108 R)
• M3: 520,301 km (0.117 R)
• M4: 809,175 km (0.105 R)
• M5: 1,648,120 km (0.088 R)
• M6: 2,504,268 km (0.09 R)
• M7: 2,888,884 km (0.115 R)
• M8: 3,284,421 km (0.042 R)
• M9: 4,281,790 km (0.063 R)
• M10: 4,725,498 km (0.049 R)
• M11: 4,940,320 km (0.087 R)
• M12: 5,825,341 km (0.077 R)
• M13: 6,948,223 km (0.109 R)
• M14: 9,844,437 km (0.115 R)
• M15: 10,195,843 km (0.045 R)
• M16: 11,492,258 km (0.108 R)
• M17: 13,964,213 km (0.073 R)
• M18: 14,482,869 km (0.079 R)
• M19: 15,796,189 km (0.106 R)
• M20: 16,278,044 km (0.062 R)
• M21: 16,687,044 km (0.101 R)
• M22: 19,836,827 km (0.047 R)
• M23: 20,492,216 km (0.111 R)
• M24: 22,143,776 km (0.055 R)
• M25: 27,054,027 km (0.086 R)
• M26: 35,707,067 km (0.094 R)
• M27: 37,805,028 km (0.081 R)
• M28: 42,861,735 km (0.091 R)
• M29: 43,484,660 km (0.107 R)
• M30: 45,551,205 km (0.079 R)
• M31: 46,200,011 km (0.113 R)
• M32: 51,613,958 km (0.061 R)
• M33: 54,109,849 km (0.098 R)
• M34: 68,650,164 km (0.077 R)
• M35: 69,502,722 km (0.062 R)
• M36: 74,543,123 km (0.077 R)
• M37: 74,767,669 km (0.083 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 522 - 19,074 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit