🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.8

Radius: 13.1

Gravity: 5.12 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 0.61 AU - 0.85 AU

Year: 416 Days

Day: 11 Hours

Environment

Temp: -168 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,692,443 km

• M1: 163,062 km (0.115 R)
• M2: 677,978 km (0.102 R)
• M3: 1,243,458 km (0.075 R)
• M4: 1,663,379 km (0.072 R)
• M5: 2,153,910 km (0.059 R)
• M6: 2,619,608 km (0.116 R)
• M7: 3,362,063 km (0.107 R)
• M8: 3,822,525 km (0.062 R)
• M9: 4,526,832 km (0.109 R)
• M10: 5,074,958 km (0.06 R)
• M11: 5,615,904 km (0.06 R)
• M12: 6,051,234 km (0.07 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.4

Radius: 14.6

Gravity: 1.78 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 0.89 AU - 1.33 AU

Year: 780 Days

Day: 5.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 84,692,443 km

• M1: 181,761 km (0.084 R)
• M2: 815,009 km (0.094 R)
• M3: 1,277,267 km (0.103 R)
• M4: 2,068,041 km (0.089 R)
• M5: 2,571,438 km (0.118 R)
• M6: 3,181,049 km (0.075 R)
• M7: 3,657,818 km (0.054 R)
• M8: 4,524,588 km (0.06 R)
• M9: 5,181,322 km (0.105 R)
• M10: 5,773,730 km (0.05 R)
• M11: 6,647,232 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.7

Radius: 11.1

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 3.65 AU - 4.19 AU

Year: 5176 Days

Day: 5.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,692,443 km

• M1: 138,079 km (0.07 R)
• M2: 562,787 km (0.094 R)
• M3: 1,099,993 km (0.03 R)
• M4: 1,446,013 km (0.101 R)
• M5: 2,435,154 km (0.101 R)
• M6: 2,826,053 km (0.098 R)
• M7: 4,234,966 km (0.09 R)
• M8: 5,136,443 km (0.087 R)
• M9: 5,572,969 km (0.072 R)
• M10: 8,139,770 km (0.082 R)
• M11: 8,857,092 km (0.032 R)
• M12: 10,602,001 km (0.069 R)
• M13: 11,753,007 km (0.083 R)
• M14: 12,205,541 km (0.075 R)
• M15: 13,798,459 km (0.113 R)
• M16: 14,876,461 km (0.04 R)
• M17: 16,880,773 km (0.044 R)
• M18: 18,514,831 km (0.094 R)
• M19: 18,990,552 km (0.039 R)
• M20: 21,642,623 km (0.052 R)
• M21: 25,438,669 km (0.116 R)
• M22: 32,913,028 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.6

Radius: 14.4

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 3.82 AU - 4.38 AU

Year: 5536 Days

Day: 13.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 84,692,443 km

• M1: 179,069 km (0.081 R)
• M2: 658,829 km (0.12 R)
• M3: 1,725,163 km (0.106 R)
• M4: 2,681,841 km (0.116 R)
• M5: 3,407,092 km (0.118 R)
• M6: 3,875,034 km (0.074 R)
• M7: 4,859,836 km (0.029 R)
• M8: 6,101,050 km (0.111 R)
• M9: 8,788,725 km (0.027 R)
• M10: 10,765,212 km (0.063 R)
• M11: 13,675,340 km (0.068 R)
• M12: 14,636,207 km (0.083 R)
• M13: 17,074,951 km (0.056 R)
• M14: 17,593,458 km (0.061 R)
• M15: 19,844,457 km (0.118 R)
• M16: 21,373,347 km (0.067 R)
• M17: 22,358,449 km (0.098 R)
• M18: 27,125,684 km (0.076 R)
• M19: 28,824,368 km (0.079 R)
• M20: 30,026,686 km (0.08 R)
• M21: 30,687,909 km (0.098 R)
• M22: 33,329,508 km (0.087 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.6

Radius: 11.8

Gravity: 0.29 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 3.87 AU - 4.33 AU

Year: 5536 Days

Day: 11.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,692,443 km

• M1: 146,756 km (0.087 R)
• M2: 547,229 km (0.107 R)
• M3: 2,085,993 km (0.077 R)
• M4: 2,627,238 km (0.117 R)
• M5: 3,029,506 km (0.107 R)
• M6: 3,875,632 km (0.069 R)
• M7: 4,991,333 km (0.104 R)
• M8: 5,527,641 km (0.103 R)
• M9: 6,333,675 km (0.087 R)
• M10: 6,988,165 km (0.096 R)
• M11: 7,660,608 km (0.104 R)
• M12: 9,104,975 km (0.101 R)
• M13: 9,844,138 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240

Radius: 10.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 3.85 AU - 4.97 AU

Year: 6176 Days

Day: 13.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,692,443 km

• M1: 131,796 km (0.062 R)
• M2: 536,009 km (0.1 R)
• M3: 1,250,189 km (0.096 R)
• M4: 1,924,726 km (0.094 R)
• M5: 2,861,209 km (0.115 R)
• M6: 5,086,926 km (0.118 R)
• M7: 5,529,287 km (0.093 R)
• M8: 7,139,259 km (0.11 R)
• M9: 8,243,740 km (0.092 R)
• M10: 10,705,074 km (0.044 R)
• M11: 12,989,284 km (0.085 R)
• M12: 16,348,654 km (0.108 R)
• M13: 18,559,860 km (0.043 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.04 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.3

Radius: 6.1

Gravity: 18.77 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.59 AU - 7.49 AU

Year: 9899 Days

Day: 17.9 Hours

Environment

Temp: -230 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 84,692,443 km

• M1: 78,688 km (0.114 R)
• M2: 336,745 km (0.119 R)
• M3: 1,059,901 km (0.11 R)
• M4: 1,748,650 km (0.034 R)
• M5: 2,057,420 km (0.076 R)
• M6: 5,170,551 km (0.084 R)
• M7: 6,725,172 km (0.111 R)
• M8: 7,862,714 km (0.114 R)
• M9: 8,935,331 km (0.116 R)
• M10: 13,954,938 km (0.067 R)
• M11: 21,242,449 km (0.082 R)
• M12: 22,691,005 km (0.053 R)
• M13: 24,569,655 km (0.072 R)
• M14: 32,014,842 km (0.077 R)
• M15: 33,123,661 km (0.063 R)
• M16: 42,005,586 km (0.026 R)
• M17: 43,333,716 km (0.092 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 312.6

Radius: 4.4

Gravity: 16.15 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.85 AU - 8.71 AU

Year: 14471 Days

Day: 17.2 Hours

Environment

Temp: -230 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 84,692,443 km

• M1: 54,753 km (0.085 R)
• M2: 325,226 km (0.115 R)
• M3: 467,045 km (0.114 R)
• M4: 723,007 km (0.067 R)
• M5: 1,067,979 km (0.078 R)
• M6: 1,253,181 km (0.042 R)
• M7: 1,688,511 km (0.063 R)
• M8: 2,111,574 km (0.068 R)
• M9: 2,462,830 km (0.087 R)
• M10: 2,704,131 km (0.051 R)
• M11: 2,961,140 km (0.071 R)
• M12: 3,234,156 km (0.11 R)
• M13: 3,909,740 km (0.049 R)
• M14: 4,467,740 km (0.071 R)
• M15: 5,270,034 km (0.053 R)
• M16: 8,696,573 km (0.119 R)
• M17: 9,020,004 km (0.062 R)
• M18: 11,024,166 km (0.053 R)
• M19: 13,367,617 km (0.032 R)
• M20: 13,985,755 km (0.096 R)
• M21: 16,160,908 km (0.112 R)
• M22: 16,862,074 km (0.114 R)
• M23: 18,933,107 km (0.088 R)
• M24: 21,752,428 km (0.116 R)
• M25: 22,867,082 km (0.076 R)
• M26: 23,129,626 km (0.119 R)
• M27: 23,394,265 km (0.089 R)
• M28: 27,214,845 km (0.065 R)
• M29: 28,206,080 km (0.112 R)
• M30: 35,827,044 km (0.083 R)
• M31: 38,726,102 km (0.104 R)
• M32: 39,099,049 km (0.088 R)
• M33: 39,349,177 km (0.101 R)
• M34: 40,232,552 km (0.066 R)
• M35: 45,260,387 km (0.12 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 663.4

Radius: 7.2

Gravity: 12.8 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 10.74 AU - 10.98 AU

Year: 23866 Days

Day: 16.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 71 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 84,692,443 km

• M1: 90,507 km (0.062 R)
• M2: 369,357 km (0.072 R)
• M3: 633,996 km (0.095 R)
• M4: 1,002,755 km (0.074 R)
• M5: 1,576,462 km (0.118 R)
• M6: 1,887,626 km (0.09 R)
• M7: 2,152,863 km (0.096 R)
• M8: 4,842,633 km (0.091 R)
• M9: 5,963,270 km (0.114 R)
• M10: 8,378,229 km (0.1 R)
• M11: 9,329,522 km (0.031 R)
• M12: 9,982,217 km (0.116 R)
• M13: 10,475,740 km (0.037 R)
• M14: 10,920,794 km (0.108 R)
• M15: 11,578,277 km (0.111 R)
• M16: 11,916,817 km (0.096 R)
• M17: 12,192,526 km (0.064 R)
• M18: 13,411,449 km (0.103 R)
• M19: 15,348,742 km (0.065 R)
• M20: 15,675,014 km (0.09 R)
• M21: 16,767,977 km (0.116 R)
• M22: 18,917,548 km (0.113 R)
• M23: 19,961,442 km (0.095 R)
• M24: 23,109,729 km (0.045 R)
• M25: 27,521,371 km (0.105 R)
• M26: 28,984,139 km (0.092 R)
• M27: 40,858,918 km (0.115 R)
• M28: 41,802,133 km (0.067 R)
• M29: 44,059,266 km (0.118 R)
• M30: 48,115,462 km (0.105 R)
• M31: 63,006,734 km (0.092 R)
• M32: 77,304,251 km (0.103 R)
• M33: 80,696,083 km (0.093 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 16,026 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit