🌌 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: 346.6

Radius: 9.1

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 0.76 AU - 0.84 AU

Year: 494 Days

Day: 11.8 Hours

Environment

Temp: -168 °C

Axial Tilt: 49.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,010,845 km

• M1: 113,246 km (0.08 R)
• M2: 447,148 km (0.119 R)
• M3: 820,245 km (0.094 R)
• M4: 1,104,481 km (0.098 R)
• M5: 1,412,952 km (0.082 R)
• M6: 2,150,918 km (0.113 R)
• M7: 3,125,698 km (0.025 R)
• M8: 4,343,425 km (0.12 R)
• M9: 4,802,690 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.3

Radius: 8.9

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.75 AU - 0.87 AU

Year: 503 Days

Day: 6.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,010,845 km

• M1: 110,702 km (0.049 R)
• M2: 463,005 km (0.045 R)
• M3: 847,023 km (0.12 R)
• M4: 1,174,942 km (0.092 R)
• M5: 1,615,059 km (0.096 R)
• M6: 2,367,685 km (0.072 R)
• M7: 2,919,402 km (0.095 R)
• M8: 3,325,710 km (0.097 R)
• M9: 3,720,798 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 381.1

Radius: 8.1

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.27 AU - 1.35 AU

Year: 1035 Days

Day: 11.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 82,010,845 km

• M1: 100,829 km (0.043 R)
• M2: 354,098 km (0.12 R)
• M3: 638,185 km (0.09 R)
• M4: 992,582 km (0.092 R)
• M5: 1,910,066 km (0.075 R)
• M6: 2,177,696 km (0.095 R)
• M7: 2,514,441 km (0.111 R)
• M8: 5,659,886 km (0.102 R)
• M9: 6,014,283 km (0.09 R)
• M10: 6,723,975 km (0.099 R)
• M11: 8,613,097 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 892.8

Radius: 9.8

Gravity: 9.3 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 1.8 AU - 1.8 AU

Year: 1667 Days

Day: 6.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,010,845 km

• M1: 123,568 km (0.083 R)
• M2: 452,683 km (0.116 R)
• M3: 796,609 km (0.117 R)
• M4: 1,683,874 km (0.11 R)
• M5: 2,018,973 km (0.115 R)
• M6: 2,545,258 km (0.034 R)
• M7: 2,975,352 km (0.076 R)
• M8: 3,436,712 km (0.049 R)
• M9: 4,247,233 km (0.102 R)
• M10: 4,687,350 km (0.055 R)
• M11: 5,898,195 km (0.109 R)
• M12: 6,218,634 km (0.12 R)
• M13: 6,524,711 km (0.051 R)
• M14: 6,867,589 km (0.065 R)
• M15: 8,609,657 km (0.111 R)
• M16: 9,583,090 km (0.061 R)
• M17: 10,166,372 km (0.076 R)
• M18: 11,863,859 km (0.108 R)
• M19: 12,375,933 km (0.058 R)
• M20: 12,820,837 km (0.103 R)
• M21: 14,440,084 km (0.1 R)
• M22: 15,670,676 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 408.9

Radius: 14.3

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.51 AU - 2.15 AU

Year: 1709 Days

Day: 13.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 82,010,845 km

• M1: 177,872 km (0.091 R)
• M2: 663,616 km (0.093 R)
• M3: 1,158,636 km (0.116 R)
• M4: 1,663,678 km (0.111 R)
• M5: 2,117,558 km (0.075 R)
• M6: 2,642,946 km (0.106 R)
• M7: 3,995,759 km (0.077 R)
• M8: 4,470,284 km (0.114 R)
• M9: 5,222,761 km (0.092 R)
• M10: 5,814,121 km (0.04 R)
• M11: 6,785,011 km (0.084 R)
• M12: 7,727,478 km (0.071 R)
• M13: 8,216,813 km (0.082 R)
• M14: 8,784,686 km (0.026 R)
• M15: 9,999,570 km (0.097 R)
• M16: 10,515,833 km (0.062 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 85

Radius: 9.9

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.05 AU - 2.73 AU

Year: 2550 Days

Day: 10.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 119 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 82,010,845 km

• M1: 125,662 km (0.1 R)
• M2: 470,485 km (0.09 R)
• M3: 782,098 km (0.029 R)
• M4: 1,121,236 km (0.117 R)
• M5: 2,267,006 km (0.083 R)
• M6: 3,378,818 km (0.079 R)
• M7: 6,287,748 km (0.114 R)
• M8: 6,996,692 km (0.105 R)
• M9: 8,158,769 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 936.6

Radius: 12.3

Gravity: 6.19 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 2.7 AU - 3.48 AU

Year: 3749 Days

Day: 12.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 82,010,845 km

• M1: 153,637 km (0.086 R)
• M2: 625,469 km (0.104 R)
• M3: 1,045,988 km (0.11 R)
• M4: 2,147,777 km (0.037 R)
• M5: 3,653,928 km (0.098 R)
• M6: 5,889,369 km (0.069 R)
• M7: 6,645,885 km (0.082 R)
• M8: 9,033,767 km (0.06 R)
• M9: 10,766,858 km (0.033 R)
• M10: 11,665,792 km (0.114 R)
• M11: 12,760,848 km (0.071 R)
• M12: 13,613,406 km (0.061 R)
• M13: 16,341,623 km (0.072 R)
• M14: 17,528,682 km (0.044 R)
• M15: 18,081,147 km (0.078 R)
• M16: 18,772,289 km (0.092 R)
• M17: 22,137,792 km (0.068 R)
• M18: 25,182,408 km (0.114 R)
• M19: 26,522,954 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 603.6

Radius: 5

Gravity: 24.14 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 7.84 AU - 8.86 AU

Year: 16655 Days

Day: 16.3 Hours

Environment

Temp: -242 °C

Axial Tilt: 9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 82,010,845 km

• M1: 62,382 km (0.109 R)
• M2: 730,486 km (0.102 R)
• M3: 1,651,710 km (0.046 R)
• M4: 1,874,461 km (0.105 R)
• M5: 2,078,363 km (0.105 R)
• M6: 2,875,570 km (0.113 R)
• M7: 3,518,542 km (0.109 R)
• M8: 5,155,143 km (0.028 R)
• M9: 6,589,786 km (0.045 R)
• M10: 7,981,046 km (0.111 R)
• M11: 8,222,497 km (0.079 R)
• M12: 9,995,382 km (0.053 R)
• M13: 10,794,234 km (0.028 R)
• M14: 11,634,825 km (0.08 R)
• M15: 20,344,712 km (0.081 R)
• M16: 25,779,603 km (0.115 R)
• M17: 27,384,339 km (0.104 R)
• M18: 41,378,023 km (0.062 R)
• M19: 47,874,610 km (0.095 R)
• M20: 51,780,311 km (0.087 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 892.2

Radius: 5

Gravity: 35.69 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 7.81 AU - 11.25 AU

Year: 20307 Days

Day: 19.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,010,845 km

• M1: 64,925 km (0.075 R)
• M2: 238,160 km (0.083 R)
• M3: 655,837 km (0.086 R)
• M4: 1,030,430 km (0.115 R)
• M5: 1,265,748 km (0.086 R)
• M6: 1,787,695 km (0.082 R)
• M7: 2,349,734 km (0.092 R)
• M8: 3,104,156 km (0.096 R)
• M9: 4,041,386 km (0.119 R)
• M10: 4,961,862 km (0.088 R)
• M11: 5,153,647 km (0.088 R)
• M12: 6,057,517 km (0.118 R)
• M13: 7,705,936 km (0.082 R)
• M14: 8,173,728 km (0.108 R)
• M15: 8,771,073 km (0.086 R)
• M16: 9,108,865 km (0.113 R)
• M17: 9,572,768 km (0.044 R)
• M18: 9,750,640 km (0.115 R)
• M19: 10,236,085 km (0.1 R)
• M20: 10,801,116 km (0.037 R)
• M21: 12,979,261 km (0.118 R)
• M22: 14,094,363 km (0.109 R)
• M23: 15,514,945 km (0.098 R)
• M24: 15,843,162 km (0.103 R)
• M25: 18,915,155 km (0.105 R)
• M26: 19,478,840 km (0.063 R)
• M27: 27,738,138 km (0.105 R)
• M28: 29,579,987 km (0.065 R)
• M29: 39,868,581 km (0.109 R)
• M30: 41,892,341 km (0.093 R)
• M31: 45,137,717 km (0.053 R)
• M32: 52,859,510 km (0.069 R)
• M33: 56,449,560 km (0.111 R)
• M34: 66,882,515 km (0.079 R)
• M35: 67,969,493 km (0.103 R)
• M36: 70,851,048 km (0.105 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.2

Radius: 7.2

Gravity: 14.14 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 9.73 AU - 10.15 AU

Year: 21632 Days

Day: 20.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 82,010,845 km

• M1: 89,609 km (0.07 R)
• M2: 521,049 km (0.058 R)
• M3: 859,141 km (0.073 R)
• M4: 1,546,094 km (0.032 R)
• M5: 3,169,380 km (0.069 R)
• M6: 3,943,549 km (0.114 R)
• M7: 4,479,110 km (0.108 R)
• M8: 5,735,582 km (0.032 R)
• M9: 6,602,801 km (0.093 R)
• M10: 8,115,535 km (0.107 R)
• M11: 11,608,346 km (0.078 R)
• M12: 15,501,631 km (0.1 R)
• M13: 16,239,298 km (0.07 R)
• M14: 16,490,323 km (0.111 R)
• M15: 17,345,873 km (0.073 R)
• M16: 19,613,627 km (0.074 R)
• M17: 20,573,746 km (0.117 R)
• M18: 27,472,153 km (0.08 R)
• M19: 35,345,938 km (0.097 R)
• M20: 35,909,323 km (0.099 R)
• M21: 38,222,555 km (0.081 R)
• M22: 40,941,796 km (0.108 R)
• M23: 42,190,788 km (0.076 R)
• M24: 43,949,162 km (0.075 R)
• M25: 51,472,439 km (0.084 R)
• M26: 53,849,100 km (0.083 R)
• M27: 56,298,167 km (0.038 R)
• M28: 64,716,338 km (0.104 R)
• M29: 66,196,310 km (0.117 R)
• M30: 69,223,572 km (0.099 R)
• M31: 73,477,986 km (0.116 R)
• M32: 76,957,483 km (0.098 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 197 - 14,268 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit