🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.74

Radius: 0.89

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 0.59 AU - 0.75 AU

Year: 349 Days

Day: 26.3 Hours

Environment

Temp: -132 °C

Axial Tilt: 9.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,616,730 km

• M1: 20,794 km (0.09 R)
• M2: 61,634 km (0.06 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 945.5

Radius: 9.3

Gravity: 10.93 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.74 AU - 1.14 AU

Year: 579 Days

Day: 11.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 47,616,730 km

• M1: 116,088 km (0.057 R)
• M2: 409,150 km (0.113 R)
• M3: 703,409 km (0.049 R)
• M4: 1,166,564 km (0.104 R)
• M5: 1,513,631 km (0.093 R)
• M6: 1,983,668 km (0.057 R)
• M7: 3,307,160 km (0.067 R)
• M8: 3,911,087 km (0.097 R)
• M9: 4,817,201 km (0.115 R)
• M10: 6,168,967 km (0.066 R)
• M11: 7,711,621 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.7

Radius: 13.2

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 1.17 AU - 1.65 AU

Year: 1065 Days

Day: 10.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 47,616,730 km

• M1: 164,258 km (0.118 R)
• M2: 588,518 km (0.051 R)
• M3: 1,007,841 km (0.025 R)
• M4: 1,505,254 km (0.061 R)
• M5: 2,286,304 km (0.102 R)
• M6: 2,745,570 km (0.087 R)
• M7: 3,366,999 km (0.034 R)
• M8: 3,790,212 km (0.094 R)
• M9: 4,439,466 km (0.08 R)
• M10: 4,988,491 km (0.119 R)
• M11: 6,201,580 km (0.099 R)
• M12: 6,701,237 km (0.117 R)
• M13: 8,016,800 km (0.104 R)
• M14: 8,749,979 km (0.113 R)
• M15: 9,321,443 km (0.084 R)
• M16: 9,857,153 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 394.2

Radius: 10.9

Gravity: 3.32 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 1.5 AU - 1.8 AU

Year: 1348 Days

Day: 9.6 Hours

Environment

Temp: -184 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 47,616,730 km

• M1: 135,536 km (0.084 R)
• M2: 517,459 km (0.086 R)
• M3: 869,612 km (0.088 R)
• M4: 1,251,237 km (0.094 R)
• M5: 1,884,933 km (0.09 R)
• M6: 2,227,811 km (0.05 R)
• M7: 3,069,150 km (0.084 R)
• M8: 3,729,475 km (0.117 R)
• M9: 4,126,657 km (0.089 R)
• M10: 4,605,071 km (0.094 R)
• M11: 5,158,583 km (0.053 R)
• M12: 5,714,639 km (0.034 R)
• M13: 6,692,111 km (0.109 R)
• M14: 8,269,471 km (0.091 R)
• M15: 9,145,067 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 287.4

Radius: 9.9

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 2.68 AU - 3.08 AU

Year: 3108 Days

Day: 7 Hours

Environment

Temp: -208 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 47,616,730 km

• M1: 125,213 km (0.076 R)
• M2: 564,283 km (0.073 R)
• M3: 872,904 km (0.098 R)
• M4: 1,395,299 km (0.109 R)
• M5: 1,885,382 km (0.071 R)
• M6: 2,215,096 km (0.082 R)
• M7: 2,555,730 km (0.05 R)
• M8: 3,565,067 km (0.115 R)
• M9: 4,228,384 km (0.111 R)
• M10: 4,631,251 km (0.087 R)
• M11: 5,081,690 km (0.084 R)
• M12: 5,632,210 km (0.099 R)
• M13: 6,798,326 km (0.074 R)
• M14: 8,903,766 km (0.097 R)
• M15: 9,231,685 km (0.119 R)
• M16: 9,877,349 km (0.098 R)
• M17: 10,698,641 km (0.081 R)
• M18: 15,036,232 km (0.118 R)
• M19: 16,074,142 km (0.048 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.8

Radius: 13

Gravity: 3.96 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 2.42 AU - 3.34 AU

Year: 3108 Days

Day: 13 Hours

Environment

Temp: -197 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 47,616,730 km

• M1: 161,715 km (0.111 R)
• M2: 1,090,120 km (0.056 R)
• M3: 1,516,623 km (0.095 R)
• M4: 3,102,361 km (0.108 R)
• M5: 3,744,883 km (0.105 R)
• M6: 4,815,705 km (0.077 R)
• M7: 5,654,052 km (0.085 R)
• M8: 6,762,422 km (0.115 R)
• M9: 7,183,091 km (0.111 R)
• M10: 7,879,469 km (0.098 R)
• M11: 8,724,997 km (0.047 R)
• M12: 10,047,741 km (0.081 R)
• M13: 10,596,915 km (0.076 R)
• M14: 11,207,424 km (0.048 R)
• M15: 12,232,917 km (0.067 R)
• M16: 12,678,270 km (0.092 R)
• M17: 13,366,719 km (0.071 R)
• M18: 14,225,561 km (0.091 R)
• M19: 15,120,904 km (0.031 R)
• M20: 15,634,324 km (0.093 R)
• M21: 16,265,776 km (0.101 R)
• M22: 17,300,395 km (0.057 R)
• M23: 21,428,997 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 221.1

Radius: 8.5

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.31 AU - 3.77 AU

Year: 4235 Days

Day: 8.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 47,616,730 km

• M1: 111,301 km (0.119 R)
• M2: 437,275 km (0.09 R)
• M3: 973,134 km (0.075 R)
• M4: 1,276,818 km (0.028 R)
• M5: 1,971,401 km (0.112 R)
• M6: 2,536,881 km (0.037 R)
• M7: 3,156,365 km (0.09 R)
• M8: 4,804,036 km (0.073 R)
• M9: 5,725,559 km (0.082 R)
• M10: 6,031,487 km (0.06 R)
• M11: 6,456,495 km (0.048 R)
• M12: 10,233,841 km (0.089 R)
• M13: 10,533,485 km (0.076 R)
• M14: 10,877,710 km (0.112 R)
• M15: 13,545,788 km (0.056 R)
• M16: 14,275,377 km (0.047 R)
• M17: 14,887,382 km (0.076 R)
• M18: 17,246,241 km (0.116 R)
• M19: 17,724,805 km (0.098 R)
• M20: 18,157,591 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 854.3

Radius: 3.4

Gravity: 73.9 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 6.59 AU - 6.91 AU

Year: 11150 Days

Day: 21.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 47,616,730 km

• M1: 42,336 km (0.068 R)
• M2: 155,881 km (0.065 R)
• M3: 404,812 km (0.055 R)
• M4: 541,095 km (0.068 R)
• M5: 665,411 km (0.115 R)
• M6: 950,694 km (0.096 R)
• M7: 1,097,450 km (0.115 R)
• M8: 1,220,569 km (0.091 R)
• M9: 1,742,217 km (0.078 R)
• M10: 2,299,020 km (0.086 R)
• M11: 2,480,781 km (0.086 R)
• M12: 3,976,012 km (0.084 R)
• M13: 6,021,165 km (0.114 R)
• M14: 6,366,736 km (0.112 R)
• M15: 7,972,968 km (0.088 R)
• M16: 8,869,059 km (0.085 R)
• M17: 9,016,413 km (0.106 R)
• M18: 11,084,155 km (0.062 R)
• M19: 11,312,591 km (0.09 R)
• M20: 12,379,523 km (0.066 R)
• M21: 13,127,064 km (0.112 R)
• M22: 17,860,939 km (0.114 R)
• M23: 18,253,932 km (0.087 R)
• M24: 19,550,347 km (0.047 R)
• M25: 21,343,577 km (0.037 R)
• M26: 22,965,218 km (0.071 R)
• M27: 24,667,193 km (0.117 R)
• M28: 24,861,371 km (0.093 R)
• M29: 27,478,885 km (0.076 R)
• M30: 29,503,842 km (0.094 R)
• M31: 30,163,419 km (0.117 R)
• M32: 35,057,962 km (0.114 R)
• M33: 47,873,563 km (0.111 R)
• M34: 51,266,891 km (0.107 R)
• M35: 54,652,141 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 63.4

Radius: 4.8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 6.79 AU - 7.27 AU

Year: 11851 Days

Day: 17.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 47,616,730 km

• M1: 73,004 km (0.051 R)
• M2: 300,393 km (0.109 R)
• M3: 632,350 km (0.117 R)
• M4: 809,624 km (0.095 R)
• M5: 1,237,474 km (0.084 R)
• M6: 3,852,594 km (0.08 R)
• M7: 5,396,893 km (0.098 R)
• M8: 5,693,845 km (0.03 R)
• M9: 7,247,269 km (0.095 R)
• M10: 7,509,065 km (0.115 R)
• M11: 7,913,428 km (0.077 R)
• M12: 10,442,679 km (0.056 R)
• M13: 12,322,377 km (0.118 R)
• M14: 12,507,878 km (0.072 R)
• M15: 13,027,731 km (0.085 R)
• M16: 13,959,576 km (0.062 R)
• M17: 19,417,355 km (0.108 R)
• M18: 20,892,539 km (0.079 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 225.6

Radius: 5.5

Gravity: 7.46 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 7.82 AU - 10.24 AU

Year: 17253 Days

Day: 15.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 47,616,730 km

• M1: 163,510 km (0.089 R)
• M2: 415,583 km (0.08 R)
• M3: 1,276,668 km (0.076 R)
• M4: 1,526,497 km (0.086 R)
• M5: 1,888,224 km (0.031 R)
• M6: 2,177,696 km (0.056 R)
• M7: 3,982,295 km (0.039 R)
• M8: 5,492,935 km (0.105 R)
• M9: 6,948,821 km (0.104 R)
• M10: 7,681,103 km (0.112 R)
• M11: 10,441,931 km (0.091 R)
• M12: 11,676,862 km (0.109 R)
• M13: 20,047,760 km (0.11 R)
• M14: 26,670,608 km (0.098 R)
• M15: 27,949,669 km (0.091 R)
• M16: 28,756,750 km (0.111 R)
• M17: 38,437,677 km (0.097 R)
• M18: 39,059,256 km (0.12 R)
• M19: 39,561,307 km (0.086 R)
• M20: 42,664,116 km (0.118 R)
• M21: 43,330,425 km (0.092 R)
• M22: 44,274,687 km (0.104 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 16,919 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit