🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 0.6 AU - 0.64 AU

Year: 310 Days

Day: 21.7 Hours

Environment

Temp: -125 °C

Axial Tilt: 0.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 695.4

Radius: 9.4

Gravity: 7.87 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.63 AU - 0.95 AU

Year: 446 Days

Day: 6.6 Hours

Environment

Temp: -155 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 59,656,306 km

• M1: 116,986 km (0.117 R)
• M2: 415,583 km (0.104 R)
• M3: 799,451 km (0.077 R)
• M4: 1,369,419 km (0.107 R)
• M5: 1,787,695 km (0.081 R)
• M6: 2,156,304 km (0.055 R)
• M7: 2,516,535 km (0.05 R)
• M8: 3,666,195 km (0.081 R)
• M9: 4,509,478 km (0.113 R)
• M10: 4,807,477 km (0.08 R)
• M11: 5,577,009 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 787.2

Radius: 13.5

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.22 AU - 1.5 AU

Year: 1008 Days

Day: 9 Hours

Environment

Temp: -179 °C

Axial Tilt: 46.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,656,306 km

• M1: 167,849 km (0.102 R)
• M2: 688,599 km (0.098 R)
• M3: 1,352,215 km (0.031 R)
• M4: 1,979,030 km (0.076 R)
• M5: 2,527,755 km (0.095 R)
• M6: 3,670,833 km (0.094 R)
• M7: 4,181,859 km (0.092 R)
• M8: 4,740,457 km (0.032 R)
• M9: 5,408,113 km (0.094 R)
• M10: 6,094,468 km (0.069 R)
• M11: 7,391,780 km (0.11 R)
• M12: 7,871,541 km (0.107 R)
• M13: 9,408,060 km (0.111 R)
• M14: 9,912,056 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.6

Radius: 10.1

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 1.26 AU - 1.46 AU

Year: 1008 Days

Day: 10.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,656,306 km

• M1: 125,662 km (0.095 R)
• M2: 474,076 km (0.029 R)
• M3: 1,023,997 km (0.106 R)
• M4: 1,432,848 km (0.078 R)
• M5: 1,922,033 km (0.052 R)
• M6: 2,279,572 km (0.12 R)
• M7: 2,623,199 km (0.085 R)
• M8: 2,988,816 km (0.088 R)
• M9: 3,346,804 km (0.085 R)
• M10: 4,054,850 km (0.029 R)
• M11: 4,444,852 km (0.061 R)
• M12: 5,414,845 km (0.055 R)
• M13: 6,136,056 km (0.11 R)
• M14: 8,424,903 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 831.3

Radius: 14.7

Gravity: 3.85 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 2.49 AU - 2.61 AU

Year: 2589 Days

Day: 7.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 59,656,306 km

• M1: 182,809 km (0.048 R)
• M2: 991,983 km (0.111 R)
• M3: 1,540,260 km (0.067 R)
• M4: 2,725,374 km (0.093 R)
• M5: 3,552,052 km (0.06 R)
• M6: 4,497,361 km (0.107 R)
• M7: 4,971,287 km (0.089 R)
• M8: 5,453,890 km (0.062 R)
• M9: 5,914,950 km (0.082 R)
• M10: 6,741,927 km (0.065 R)
• M11: 7,644,601 km (0.109 R)
• M12: 8,290,415 km (0.117 R)
• M13: 9,617,797 km (0.108 R)
• M14: 10,217,535 km (0.064 R)
• M15: 13,552,819 km (0.098 R)
• M16: 14,021,360 km (0.034 R)
• M17: 18,396,200 km (0.081 R)
• M18: 18,913,360 km (0.033 R)
• M19: 19,499,185 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 789.2

Radius: 13

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 2.72 AU - 2.8 AU

Year: 2915 Days

Day: 5.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,656,306 km

• M1: 161,715 km (0.105 R)
• M2: 900,729 km (0.073 R)
• M3: 1,544,299 km (0.119 R)
• M4: 2,173,507 km (0.094 R)
• M5: 2,679,298 km (0.081 R)
• M6: 4,396,681 km (0.041 R)
• M7: 5,090,965 km (0.054 R)
• M8: 6,757,934 km (0.086 R)
• M9: 7,366,498 km (0.091 R)
• M10: 8,554,006 km (0.089 R)
• M11: 10,811,438 km (0.093 R)
• M12: 13,021,896 km (0.113 R)
• M13: 15,312,240 km (0.066 R)
• M14: 20,364,459 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 694.4

Radius: 13.1

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 2.99 AU - 4.51 AU

Year: 4617 Days

Day: 9 Hours

Environment

Temp: -213 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,656,306 km

• M1: 162,912 km (0.089 R)
• M2: 677,379 km (0.118 R)
• M3: 1,200,224 km (0.05 R)
• M4: 1,979,778 km (0.109 R)
• M5: 2,533,440 km (0.087 R)
• M6: 3,170,577 km (0.105 R)
• M7: 4,138,326 km (0.055 R)
• M8: 4,973,680 km (0.064 R)
• M9: 5,977,632 km (0.069 R)
• M10: 7,246,820 km (0.097 R)
• M11: 8,274,258 km (0.029 R)
• M12: 8,726,792 km (0.07 R)
• M13: 9,931,354 km (0.062 R)
• M14: 17,419,774 km (0.117 R)
• M15: 17,852,262 km (0.093 R)
• M16: 18,674,452 km (0.037 R)
• M17: 23,020,868 km (0.105 R)
• M18: 24,453,717 km (0.083 R)
• M19: 26,186,359 km (0.106 R)
• M20: 28,593,389 km (0.081 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687.3

Radius: 10.2

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.29 AU - 4.79 AU

Year: 5163 Days

Day: 13.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 29.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,656,306 km

• M1: 127,158 km (0.082 R)
• M2: 477,217 km (0.113 R)
• M3: 831,315 km (0.107 R)
• M4: 2,139,848 km (0.11 R)
• M5: 2,800,771 km (0.087 R)
• M6: 3,549,509 km (0.082 R)
• M7: 4,064,425 km (0.112 R)
• M8: 4,476,417 km (0.109 R)
• M9: 5,188,353 km (0.112 R)
• M10: 6,096,861 km (0.034 R)
• M11: 7,142,401 km (0.093 R)
• M12: 7,817,386 km (0.061 R)
• M13: 8,379,874 km (0.11 R)
• M14: 9,212,536 km (0.112 R)
• M15: 10,676,351 km (0.046 R)
• M16: 11,463,685 km (0.053 R)
• M17: 13,468,895 km (0.089 R)
• M18: 16,837,988 km (0.099 R)
• M19: 18,032,677 km (0.105 R)
• M20: 20,660,663 km (0.046 R)
• M21: 21,301,540 km (0.118 R)
• M22: 24,706,687 km (0.077 R)
• M23: 25,836,001 km (0.05 R)
• M24: 28,985,934 km (0.096 R)
• M25: 29,430,389 km (0.041 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 901.5

Radius: 3.1

Gravity: 93.81 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 6.03 AU - 9.13 AU

Year: 13269 Days

Day: 23.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 59,656,306 km

• M1: 40,092 km (0.107 R)
• M2: 142,716 km (0.05 R)
• M3: 239,955 km (0.095 R)
• M4: 760,556 km (0.116 R)
• M5: 925,861 km (0.117 R)
• M6: 1,165,667 km (0.102 R)
• M7: 1,314,217 km (0.12 R)
• M8: 1,616,704 km (0.078 R)
• M9: 2,154,957 km (0.082 R)
• M10: 2,922,694 km (0.093 R)
• M11: 3,684,296 km (0.092 R)
• M12: 4,569,168 km (0.088 R)
• M13: 4,734,922 km (0.086 R)
• M14: 5,549,483 km (0.109 R)
• M15: 5,738,275 km (0.114 R)
• M16: 7,005,219 km (0.073 R)
• M17: 8,900,325 km (0.06 R)
• M18: 10,299,963 km (0.078 R)
• M19: 10,933,959 km (0.11 R)
• M20: 11,964,239 km (0.108 R)
• M21: 12,925,555 km (0.081 R)
• M22: 13,324,084 km (0.099 R)
• M23: 14,783,561 km (0.087 R)
• M24: 18,764,360 km (0.076 R)
• M25: 19,620,658 km (0.106 R)
• M26: 20,772,263 km (0.091 R)
• M27: 28,753,160 km (0.097 R)
• M28: 29,317,592 km (0.105 R)
• M29: 30,352,361 km (0.098 R)
• M30: 33,477,610 km (0.081 R)
• M31: 34,102,181 km (0.096 R)
• M32: 37,878,929 km (0.119 R)
• M33: 39,520,017 km (0.115 R)
• M34: 40,781,427 km (0.116 R)
• M35: 47,807,291 km (0.092 R)
• M36: 50,046,023 km (0.075 R)
• M37: 58,611,399 km (0.049 R)
• M38: 62,106,454 km (0.12 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 343.9

Radius: 6.8

Gravity: 7.44 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 9.57 AU - 10.09 AU

Year: 19596 Days

Day: 15.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 59,656,306 km

• M1: 84,672 km (0.088 R)
• M2: 644,168 km (0.093 R)
• M3: 1,205,759 km (0.102 R)
• M4: 2,148,525 km (0.118 R)
• M5: 2,552,140 km (0.102 R)
• M6: 3,077,677 km (0.087 R)
• M7: 4,190,236 km (0.118 R)
• M8: 4,788,029 km (0.105 R)
• M9: 5,193,739 km (0.084 R)
• M10: 6,348,784 km (0.097 R)
• M11: 6,590,684 km (0.064 R)
• M12: 8,509,276 km (0.086 R)
• M13: 9,104,826 km (0.091 R)
• M14: 10,104,289 km (0.064 R)
• M15: 12,444,149 km (0.099 R)
• M16: 12,887,857 km (0.039 R)
• M17: 14,009,093 km (0.115 R)
• M18: 17,682,618 km (0.063 R)
• M19: 17,921,376 km (0.072 R)
• M20: 22,786,000 km (0.107 R)
• M21: 24,915,974 km (0.099 R)
• M22: 27,175,201 km (0.105 R)
• M23: 28,463,388 km (0.102 R)
• M24: 29,344,370 km (0.077 R)
• M25: 29,679,470 km (0.043 R)
• M26: 31,743,471 km (0.104 R)
• M27: 35,899,749 km (0.102 R)
• M28: 39,719,880 km (0.057 R)
• M29: 40,404,889 km (0.117 R)
• M30: 43,802,556 km (0.09 R)
• M31: 46,020,045 km (0.103 R)
• M32: 49,406,193 km (0.112 R)
• M33: 50,517,406 km (0.102 R)
• M34: 52,625,240 km (0.115 R)
• M35: 54,622,371 km (0.067 R)
• M36: 57,189,172 km (0.105 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: 483 - 13,117 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit