🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 353.4

Radius: 13.1

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.62 AU - 0.98 AU

Year: 485 Days

Day: 8.6 Hours

Environment

Temp: -167 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,617,577 km

• M1: 162,912 km (0.098 R)
• M2: 614,099 km (0.09 R)
• M3: 1,190,350 km (0.076 R)
• M4: 1,665,623 km (0.058 R)
• M5: 2,379,953 km (0.062 R)
• M6: 2,933,465 km (0.085 R)
• M7: 3,446,436 km (0.067 R)
• M8: 4,341,929 km (0.049 R)
• M9: 4,938,824 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 491.8

Radius: 9.2

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.74 AU - 0.92 AU

Year: 513 Days

Day: 9.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 165.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,617,577 km

• M1: 114,442 km (0.096 R)
• M2: 453,730 km (0.065 R)
• M3: 806,333 km (0.108 R)
• M4: 1,145,770 km (0.119 R)
• M5: 1,472,492 km (0.074 R)
• M6: 1,800,111 km (0.071 R)
• M7: 2,421,541 km (0.101 R)
• M8: 3,190,923 km (0.089 R)
• M9: 3,533,651 km (0.064 R)
• M10: 4,141,916 km (0.067 R)
• M11: 4,435,427 km (0.111 R)
• M12: 5,143,474 km (0.042 R)
• M13: 5,499,816 km (0.117 R)
• M14: 5,820,853 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 727.6

Radius: 13.4

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.91 AU - 1.13 AU

Year: 699 Days

Day: 11.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,617,577 km

• M1: 166,802 km (0.114 R)
• M2: 616,343 km (0.102 R)
• M3: 1,290,132 km (0.097 R)
• M4: 1,870,572 km (0.118 R)
• M5: 2,451,161 km (0.093 R)
• M6: 3,501,338 km (0.055 R)
• M7: 3,921,708 km (0.042 R)
• M8: 4,781,597 km (0.102 R)
• M9: 5,265,845 km (0.119 R)
• M10: 6,093,271 km (0.028 R)
• M11: 6,876,117 km (0.036 R)
• M12: 7,314,588 km (0.079 R)
• M13: 7,771,609 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.8

Radius: 8

Gravity: 14.54 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1.02 AU - 1.52 AU

Year: 971 Days

Day: 9 Hours

Environment

Temp: -191 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 28,617,577 km

• M1: 99,483 km (0.085 R)
• M2: 384,766 km (0.102 R)
• M3: 989,291 km (0.12 R)
• M4: 1,344,137 km (0.043 R)
• M5: 2,464,326 km (0.101 R)
• M6: 2,735,547 km (0.05 R)
• M7: 3,846,760 km (0.094 R)
• M8: 4,530,572 km (0.095 R)
• M9: 5,114,452 km (0.092 R)
• M10: 5,558,458 km (0.108 R)
• M11: 5,897,447 km (0.043 R)
• M12: 6,805,357 km (0.1 R)
• M13: 7,193,563 km (0.12 R)
• M14: 7,829,504 km (0.1 R)
• M15: 8,310,311 km (0.055 R)
• M16: 8,641,671 km (0.042 R)
• M17: 8,924,560 km (0.057 R)
• M18: 10,337,662 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733

Radius: 8.5

Gravity: 10.15 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 1.78 AU - 2.62 AU

Year: 2213 Days

Day: 8.1 Hours

Environment

Temp: -213 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 28,617,577 km

• M1: 105,766 km (0.12 R)
• M2: 391,049 km (0.105 R)
• M3: 684,560 km (0.115 R)
• M4: 1,084,285 km (0.1 R)
• M5: 1,426,864 km (0.097 R)
• M6: 2,102,598 km (0.086 R)
• M7: 2,775,639 km (0.093 R)
• M8: 3,105,203 km (0.114 R)
• M9: 3,694,170 km (0.056 R)
• M10: 4,094,045 km (0.098 R)
• M11: 4,376,336 km (0.03 R)
• M12: 5,071,218 km (0.056 R)
• M13: 5,737,677 km (0.076 R)
• M14: 6,170,164 km (0.061 R)
• M15: 6,706,473 km (0.097 R)
• M16: 7,933,923 km (0.08 R)
• M17: 9,167,806 km (0.068 R)
• M18: 10,339,158 km (0.056 R)
• M19: 10,826,996 km (0.119 R)
• M20: 12,976,269 km (0.106 R)
• M21: 16,787,275 km (0.111 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 401.3

Radius: 12

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 3.86 AU - 5.8 AU

Year: 7200 Days

Day: 8.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,617,577 km

• M1: 149,299 km (0.103 R)
• M2: 603,777 km (0.084 R)
• M3: 1,291,179 km (0.1 R)
• M4: 1,867,580 km (0.1 R)
• M5: 2,359,458 km (0.089 R)
• M6: 3,169,979 km (0.059 R)
• M7: 3,945,195 km (0.061 R)
• M8: 4,478,661 km (0.111 R)
• M9: 6,836,473 km (0.107 R)
• M10: 7,718,502 km (0.073 R)
• M11: 8,477,412 km (0.113 R)
• M12: 11,290,899 km (0.11 R)
• M13: 14,789,694 km (0.103 R)
• M14: 15,485,025 km (0.078 R)
• M15: 17,637,589 km (0.077 R)
• M16: 18,685,372 km (0.084 R)
• M17: 19,224,523 km (0.108 R)
• M18: 21,266,684 km (0.059 R)
• M19: 22,528,991 km (0.068 R)
• M20: 23,683,736 km (0.084 R)
• M21: 26,194,587 km (0.074 R)
• M22: 29,146,901 km (0.08 R)
• M23: 30,055,858 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 971.6

Radius: 12.2

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 4.71 AU - 5.31 AU

Year: 7606 Days

Day: 14.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 28,617,577 km

• M1: 151,692 km (0.047 R)
• M2: 647,609 km (0.097 R)
• M3: 1,347,129 km (0.113 R)
• M4: 1,818,063 km (0.068 R)
• M5: 2,238,283 km (0.12 R)
• M6: 2,703,832 km (0.098 R)
• M7: 3,732,317 km (0.092 R)
• M8: 4,364,368 km (0.073 R)
• M9: 5,510,587 km (0.117 R)
• M10: 6,119,151 km (0.108 R)
• M11: 11,930,580 km (0.072 R)
• M12: 12,433,677 km (0.113 R)
• M13: 14,652,663 km (0.061 R)
• M14: 18,127,821 km (0.075 R)
• M15: 19,783,870 km (0.066 R)
• M16: 20,410,385 km (0.031 R)
• M17: 22,285,595 km (0.111 R)
• M18: 23,656,061 km (0.061 R)
• M19: 26,001,756 km (0.061 R)
• M20: 26,753,784 km (0.104 R)
• M21: 29,096,786 km (0.076 R)
• M22: 30,837,207 km (0.106 R)
• M23: 31,892,770 km (0.074 R)
• M24: 33,742,398 km (0.106 R)
• M25: 36,825,461 km (0.117 R)
• M26: 37,654,382 km (0.072 R)
• M27: 39,843,149 km (0.12 R)
• M28: 41,987,036 km (0.061 R)
• M29: 43,152,703 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 5.77 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83

Radius: 3.3

Gravity: 7.62 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.39 AU - 7.15 AU

Year: 9401 Days

Day: 24.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,617,577 km

• M1: 46,974 km (0.031 R)
• M2: 150,645 km (0.056 R)
• M3: 887,564 km (0.075 R)
• M4: 1,031,926 km (0.074 R)
• M5: 2,070,285 km (0.095 R)
• M6: 2,181,287 km (0.043 R)
• M7: 2,847,147 km (0.066 R)
• M8: 3,520,187 km (0.117 R)
• M9: 5,047,432 km (0.05 R)
• M10: 7,407,937 km (0.106 R)
• M11: 11,243,028 km (0.106 R)
• M12: 17,848,821 km (0.028 R)
• M13: 18,434,497 km (0.107 R)
• M14: 19,214,949 km (0.11 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 611.2

Radius: 5.6

Gravity: 19.49 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 7.53 AU - 9.11 AU

Year: 16277 Days

Day: 18.5 Hours

Environment

Temp: -234 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 28,617,577 km

• M1: 101,128 km (0.028 R)
• M2: 382,971 km (0.056 R)
• M3: 739,612 km (0.112 R)
• M4: 951,442 km (0.099 R)
• M5: 1,127,220 km (0.09 R)
• M6: 1,500,018 km (0.112 R)
• M7: 2,446,224 km (0.067 R)
• M8: 2,781,024 km (0.079 R)
• M9: 3,460,199 km (0.091 R)
• M10: 3,766,575 km (0.112 R)
• M11: 4,182,457 km (0.119 R)
• M12: 7,436,660 km (0.049 R)
• M13: 9,038,105 km (0.099 R)
• M14: 9,619,442 km (0.102 R)
• M15: 11,331,141 km (0.038 R)
• M16: 11,573,789 km (0.113 R)
• M17: 11,819,877 km (0.11 R)
• M18: 16,555,996 km (0.114 R)
• M19: 18,323,944 km (0.113 R)
• M20: 19,167,526 km (0.09 R)
• M21: 23,777,684 km (0.116 R)
• M22: 26,443,668 km (0.109 R)
• M23: 28,401,904 km (0.083 R)
• M24: 29,530,620 km (0.097 R)
• M25: 29,990,334 km (0.117 R)
• M26: 31,636,958 km (0.101 R)
• M27: 31,877,062 km (0.097 R)
• M28: 33,591,603 km (0.098 R)
• M29: 34,471,389 km (0.101 R)
• M30: 39,379,096 km (0.108 R)
• M31: 40,216,396 km (0.083 R)
• M32: 41,208,229 km (0.115 R)
• M33: 49,737,103 km (0.082 R)
• M34: 54,411,289 km (0.075 R)
• M35: 55,275,665 km (0.106 R)
• M36: 58,643,861 km (0.1 R)
• M37: 61,397,659 km (0.04 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 50.7

Radius: 5.7

Gravity: 1.56 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 8.23 AU - 8.87 AU

Year: 16957 Days

Day: 19 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 28,617,577 km

• M1: 83,476 km (0.086 R)
• M2: 350,657 km (0.065 R)
• M3: 1,115,551 km (0.097 R)
• M4: 1,564,195 km (0.103 R)
• M5: 2,706,973 km (0.091 R)
• M6: 3,491,465 km (0.045 R)
• M7: 5,469,597 km (0.114 R)
• M8: 7,414,818 km (0.119 R)
• M9: 7,874,383 km (0.08 R)
• M10: 8,428,045 km (0.053 R)
• M11: 10,073,771 km (0.073 R)
• M12: 11,085,053 km (0.105 R)
• M13: 11,685,688 km (0.086 R)
• M14: 12,454,322 km (0.106 R)
• M15: 18,804,153 km (0.117 R)
• M16: 20,673,977 km (0.099 R)
• M17: 21,230,182 km (0.069 R)
• M18: 23,106,738 km (0.08 R)
• M19: 25,091,153 km (0.11 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 12,562 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit