🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.6

Radius: 10.2

Gravity: 2.31 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.81 AU - 1.19 AU

Year: 678 Days

Day: 12.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,813,086 km

• M1: 126,859 km (0.117 R)
• M2: 450,439 km (0.097 R)
• M3: 777,610 km (0.111 R)
• M4: 1,541,157 km (0.038 R)
• M5: 2,036,925 km (0.118 R)
• M6: 2,418,549 km (0.052 R)
• M7: 2,776,237 km (0.077 R)
• M8: 3,103,109 km (0.027 R)
• M9: 3,772,260 km (0.087 R)
• M10: 4,407,901 km (0.111 R)
• M11: 5,238,169 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 606.2

Radius: 11.8

Gravity: 4.35 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.05 AU - 1.55 AU

Year: 1005 Days

Day: 10.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,813,086 km

• M1: 146,756 km (0.119 R)
• M2: 596,596 km (0.116 R)
• M3: 976,126 km (0.097 R)
• M4: 1,760,019 km (0.118 R)
• M5: 2,160,044 km (0.111 R)
• M6: 2,528,653 km (0.099 R)
• M7: 3,121,659 km (0.086 R)
• M8: 3,640,614 km (0.117 R)
• M9: 4,023,285 km (0.106 R)
• M10: 5,337,203 km (0.036 R)
• M11: 6,381,995 km (0.118 R)
• M12: 6,964,828 km (0.049 R)
• M13: 8,185,547 km (0.078 R)
• M14: 8,685,054 km (0.065 R)
• M15: 9,345,080 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 879.8

Radius: 15

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.16 AU - 1.88 AU

Year: 1271 Days

Day: 13.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 74,813,086 km

• M1: 186,698 km (0.098 R)
• M2: 674,686 km (0.113 R)
• M3: 1,442,273 km (0.083 R)
• M4: 1,960,181 km (0.11 R)
• M5: 2,853,430 km (0.065 R)
• M6: 3,387,195 km (0.064 R)
• M7: 4,144,609 km (0.065 R)
• M8: 4,814,359 km (0.059 R)
• M9: 5,620,841 km (0.099 R)
• M10: 6,710,960 km (0.104 R)
• M11: 7,398,512 km (0.057 R)
• M12: 9,684,218 km (0.093 R)
• M13: 10,232,046 km (0.087 R)
• M14: 11,425,388 km (0.078 R)
• M15: 11,964,389 km (0.079 R)
• M16: 12,709,685 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.4

Radius: 8.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 1.47 AU - 2.07 AU

Year: 1597 Days

Day: 14.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,813,086 km

• M1: 105,766 km (0.102 R)
• M2: 463,454 km (0.117 R)
• M3: 805,734 km (0.062 R)
• M4: 1,209,200 km (0.085 R)
• M5: 3,197,056 km (0.075 R)
• M6: 4,758,858 km (0.083 R)
• M7: 5,685,766 km (0.108 R)
• M8: 6,367,484 km (0.052 R)
• M9: 7,007,613 km (0.051 R)
• M10: 7,565,015 km (0.072 R)
• M11: 7,867,352 km (0.083 R)
• M12: 8,309,563 km (0.109 R)
• M13: 9,765,749 km (0.075 R)
• M14: 10,064,197 km (0.057 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.9

Radius: 8

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.55 AU - 1.99 AU

Year: 1597 Days

Day: 14.6 Hours

Environment

Temp: -203 °C

Axial Tilt: 165.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,813,086 km

• M1: 99,483 km (0.083 R)
• M2: 384,915 km (0.045 R)
• M3: 1,330,972 km (0.058 R)
• M4: 1,913,955 km (0.053 R)
• M5: 2,815,731 km (0.081 R)
• M6: 3,270,808 km (0.075 R)
• M7: 3,595,435 km (0.113 R)
• M8: 4,327,717 km (0.109 R)
• M9: 7,669,883 km (0.104 R)
• M10: 11,211,612 km (0.058 R)
• M11: 11,916,218 km (0.087 R)
• M12: 12,206,139 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.1

Radius: 13.2

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 2.35 AU - 3.23 AU

Year: 3161 Days

Day: 7.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,813,086 km

• M1: 164,258 km (0.078 R)
• M2: 856,747 km (0.118 R)
• M3: 1,483,412 km (0.083 R)
• M4: 3,055,686 km (0.082 R)
• M5: 4,088,360 km (0.075 R)
• M6: 5,704,915 km (0.114 R)
• M7: 8,351,002 km (0.087 R)
• M8: 8,878,634 km (0.112 R)
• M9: 9,845,933 km (0.091 R)
• M10: 11,048,252 km (0.069 R)
• M11: 12,122,963 km (0.074 R)
• M12: 13,646,916 km (0.07 R)
• M13: 15,451,366 km (0.116 R)
• M14: 17,866,773 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 938.5

Radius: 11.5

Gravity: 7.1 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.43 AU - 3.79 AU

Year: 3720 Days

Day: 8.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,813,086 km

• M1: 143,464 km (0.082 R)
• M2: 545,883 km (0.028 R)
• M3: 920,177 km (0.071 R)
• M4: 1,378,993 km (0.034 R)
• M5: 2,305,752 km (0.079 R)
• M6: 3,041,923 km (0.063 R)
• M7: 3,928,440 km (0.109 R)
• M8: 4,800,745 km (0.104 R)
• M9: 5,543,200 km (0.097 R)
• M10: 8,090,253 km (0.109 R)
• M11: 8,832,557 km (0.051 R)
• M12: 10,495,787 km (0.118 R)
• M13: 11,515,595 km (0.086 R)
• M14: 12,073,296 km (0.102 R)
• M15: 13,092,506 km (0.069 R)
• M16: 13,546,536 km (0.086 R)
• M17: 14,273,731 km (0.105 R)
• M18: 14,754,838 km (0.047 R)
• M19: 17,872,158 km (0.063 R)
• M20: 20,717,660 km (0.099 R)
• M21: 22,678,140 km (0.073 R)
• M22: 23,777,834 km (0.114 R)
• M23: 25,143,961 km (0.088 R)
• M24: 25,767,635 km (0.11 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 305.3

Radius: 12

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.44 AU - 4.92 AU

Year: 6867 Days

Day: 8.3 Hours

Environment

Temp: -229 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 74,813,086 km

• M1: 150,944 km (0.085 R)
• M2: 659,128 km (0.078 R)
• M3: 1,656,198 km (0.072 R)
• M4: 2,580,563 km (0.116 R)
• M5: 3,423,547 km (0.119 R)
• M6: 5,399,286 km (0.083 R)
• M7: 6,364,941 km (0.119 R)
• M8: 6,743,423 km (0.106 R)
• M9: 7,305,612 km (0.095 R)
• M10: 8,486,089 km (0.047 R)
• M11: 9,261,155 km (0.095 R)
• M12: 10,381,643 km (0.101 R)
• M13: 10,952,509 km (0.11 R)
• M14: 11,730,418 km (0.106 R)
• M15: 15,270,951 km (0.116 R)
• M16: 16,951,832 km (0.047 R)
• M17: 18,117,948 km (0.079 R)
• M18: 18,624,785 km (0.089 R)
• M19: 19,534,191 km (0.05 R)
• M20: 26,994,786 km (0.074 R)
• M21: 27,991,108 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 122

Radius: 5.7

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 6.8 AU - 8.32 AU

Year: 14099 Days

Day: 15.3 Hours

Environment

Temp: -241 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,813,086 km

• M1: 70,909 km (0.066 R)
• M2: 271,520 km (0.073 R)
• M3: 599,588 km (0.032 R)
• M4: 1,597,556 km (0.07 R)
• M5: 2,220,332 km (0.099 R)
• M6: 3,836,437 km (0.084 R)
• M7: 4,402,815 km (0.077 R)
• M8: 6,238,979 km (0.076 R)
• M9: 7,789,112 km (0.104 R)
• M10: 15,943,991 km (0.041 R)
• M11: 16,817,493 km (0.03 R)
• M12: 20,998,305 km (0.115 R)
• M13: 22,739,325 km (0.09 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 761.3

Radius: 4.7

Gravity: 34.46 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 8.05 AU - 10.07 AU

Year: 18496 Days

Day: 24.1 Hours

Environment

Temp: -237 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 74,813,086 km

• M1: 72,256 km (0.082 R)
• M2: 579,393 km (0.101 R)
• M3: 770,728 km (0.081 R)
• M4: 1,144,424 km (0.064 R)
• M5: 1,387,520 km (0.061 R)
• M6: 1,807,292 km (0.075 R)
• M7: 2,439,792 km (0.078 R)
• M8: 4,324,426 km (0.074 R)
• M9: 4,526,981 km (0.038 R)
• M10: 4,735,969 km (0.104 R)
• M11: 5,401,381 km (0.073 R)
• M12: 5,960,578 km (0.07 R)
• M13: 6,127,230 km (0.098 R)
• M14: 6,339,958 km (0.054 R)
• M15: 8,692,683 km (0.105 R)
• M16: 8,853,202 km (0.111 R)
• M17: 10,033,230 km (0.11 R)
• M18: 10,691,311 km (0.036 R)
• M19: 12,159,614 km (0.062 R)
• M20: 15,255,841 km (0.098 R)
• M21: 16,777,252 km (0.047 R)
• M22: 19,563,213 km (0.069 R)
• M23: 19,839,221 km (0.108 R)
• M24: 22,042,199 km (0.1 R)
• M25: 22,341,096 km (0.054 R)
• M26: 22,845,240 km (0.091 R)
• M27: 23,253,942 km (0.117 R)
• M28: 27,613,074 km (0.104 R)
• M29: 30,105,823 km (0.078 R)
• M30: 32,102,805 km (0.049 R)
• M31: 32,615,627 km (0.027 R)
• M32: 33,394,882 km (0.087 R)
• M33: 34,855,556 km (0.09 R)
• M34: 39,054,918 km (0.12 R)
• M35: 42,340,386 km (0.063 R)
• M36: 46,618,287 km (0.084 R)
• M37: 46,782,097 km (0.05 R)
• M38: 50,310,063 km (0.109 R)
• M39: 51,001,654 km (0.079 R)
• M40: 68,920,038 km (0.074 R)
• M41: 71,282,039 km (0.114 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 150 - 17,817 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit