🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 641.9

Radius: 9.4

Gravity: 7.26 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.75 AU - 0.75 AU

Year: 426 Days

Day: 11.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,457,142 km

• M1: 116,836 km (0.093 R)
• M2: 434,283 km (0.103 R)
• M3: 780,452 km (0.107 R)
• M4: 1,221,915 km (0.11 R)
• M5: 1,642,136 km (0.091 R)
• M6: 1,982,471 km (0.096 R)
• M7: 3,162,499 km (0.082 R)
• M8: 3,962,848 km (0.092 R)
• M9: 4,313,056 km (0.079 R)
• M10: 4,757,661 km (0.115 R)
• M11: 5,671,854 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 342.1

Radius: 13.7

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.06 AU - 1.34 AU

Year: 862 Days

Day: 11.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,457,142 km

• M1: 170,392 km (0.079 R)
• M2: 670,198 km (0.083 R)
• M3: 1,293,423 km (0.081 R)
• M4: 1,808,489 km (0.116 R)
• M5: 2,264,912 km (0.095 R)
• M6: 3,559,382 km (0.116 R)
• M7: 4,783,392 km (0.067 R)
• M8: 5,671,854 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 637.2

Radius: 13.3

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.45 AU - 1.87 AU

Year: 1403 Days

Day: 8.6 Hours

Environment

Temp: -192 °C

Axial Tilt: 45.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,457,142 km

• M1: 165,605 km (0.069 R)
• M2: 609,462 km (0.043 R)
• M3: 1,024,745 km (0.097 R)
• M4: 1,752,240 km (0.03 R)
• M5: 2,296,926 km (0.083 R)
• M6: 3,327,954 km (0.068 R)
• M7: 4,553,011 km (0.064 R)
• M8: 6,266,356 km (0.118 R)
• M9: 6,816,277 km (0.109 R)
• M10: 7,795,695 km (0.043 R)
• M11: 10,357,259 km (0.028 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.2

Radius: 13.9

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 1.31 AU - 2.11 AU

Year: 1467 Days

Day: 5.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 90,457,142 km

• M1: 173,683 km (0.114 R)
• M2: 641,476 km (0.115 R)
• M3: 1,241,662 km (0.093 R)
• M4: 2,212,104 km (0.04 R)
• M5: 2,736,893 km (0.106 R)
• M6: 3,546,068 km (0.118 R)
• M7: 6,608,187 km (0.081 R)
• M8: 7,131,779 km (0.106 R)
• M9: 7,602,414 km (0.116 R)
• M10: 8,723,650 km (0.083 R)
• M11: 10,048,788 km (0.063 R)
• M12: 10,844,649 km (0.107 R)
• M13: 11,363,155 km (0.032 R)
• M14: 11,825,861 km (0.098 R)
• M15: 12,865,566 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 696.2

Radius: 14.6

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.46 AU - 2.52 AU

Year: 2578 Days

Day: 10.4 Hours

Environment

Temp: -206 °C

Axial Tilt: 25 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 90,457,142 km

• M1: 197,619 km (0.114 R)
• M2: 714,180 km (0.114 R)
• M3: 1,319,902 km (0.063 R)
• M4: 1,897,051 km (0.073 R)
• M5: 2,456,547 km (0.091 R)
• M6: 3,469,474 km (0.055 R)
• M7: 4,463,701 km (0.096 R)
• M8: 5,640,438 km (0.056 R)
• M9: 6,478,934 km (0.1 R)
• M10: 7,190,721 km (0.088 R)
• M11: 10,382,242 km (0.065 R)
• M12: 12,225,437 km (0.114 R)
• M13: 12,959,215 km (0.032 R)
• M14: 19,001,473 km (0.084 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.9

Radius: 8.5

Gravity: 10.55 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.07 AU - 3.25 AU

Year: 2846 Days

Day: 11.8 Hours

Environment

Temp: -198 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,457,142 km

• M1: 105,766 km (0.119 R)
• M2: 481,556 km (0.03 R)
• M3: 780,452 km (0.106 R)
• M4: 1,128,417 km (0.086 R)
• M5: 1,890,169 km (0.108 R)
• M6: 2,241,724 km (0.055 R)
• M7: 3,009,311 km (0.086 R)
• M8: 3,721,696 km (0.099 R)
• M9: 4,320,835 km (0.073 R)
• M10: 4,609,709 km (0.095 R)
• M11: 4,887,811 km (0.118 R)
• M12: 5,658,539 km (0.101 R)
• M13: 6,169,566 km (0.033 R)
• M14: 6,978,292 km (0.047 R)
• M15: 8,457,964 km (0.111 R)
• M16: 9,162,421 km (0.048 R)
• M17: 10,370,124 km (0.099 R)
• M18: 11,766,172 km (0.106 R)
• M19: 13,283,393 km (0.065 R)
• M20: 15,128,683 km (0.099 R)
• M21: 16,701,405 km (0.073 R)
• M22: 18,035,818 km (0.078 R)
• M23: 19,500,082 km (0.109 R)
• M24: 20,852,597 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 330.7

Radius: 6.1

Gravity: 8.89 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 6.59 AU - 8.61 AU

Year: 13745 Days

Day: 23.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 90,457,142 km

• M1: 75,846 km (0.105 R)
• M2: 284,386 km (0.098 R)
• M3: 505,641 km (0.102 R)
• M4: 750,084 km (0.109 R)
• M5: 1,062,145 km (0.076 R)
• M6: 1,304,045 km (0.097 R)
• M7: 2,169,768 km (0.063 R)
• M8: 3,416,815 km (0.102 R)
• M9: 3,895,828 km (0.107 R)
• M10: 5,772,982 km (0.078 R)
• M11: 8,446,146 km (0.077 R)
• M12: 10,818,170 km (0.116 R)
• M13: 12,470,927 km (0.086 R)
• M14: 13,662,026 km (0.078 R)
• M15: 14,033,627 km (0.063 R)
• M16: 15,722,437 km (0.097 R)
• M17: 19,034,384 km (0.026 R)
• M18: 24,105,004 km (0.117 R)
• M19: 24,830,404 km (0.12 R)
• M20: 28,576,036 km (0.056 R)
• M21: 29,183,852 km (0.112 R)
• M22: 32,571,944 km (0.108 R)
• M23: 36,449,372 km (0.11 R)
• M24: 39,614,115 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 851.6

Radius: 3.5

Gravity: 69.52 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 9.8 AU - 11.78 AU

Year: 23251 Days

Day: 20.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 159.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 90,457,142 km

• M1: 43,533 km (0.051 R)
• M2: 160,668 km (0.051 R)
• M3: 342,579 km (0.096 R)
• M4: 1,542,653 km (0.057 R)
• M5: 2,114,566 km (0.095 R)
• M6: 2,896,514 km (0.115 R)
• M7: 4,660,422 km (0.102 R)
• M8: 5,283,946 km (0.094 R)
• M9: 6,005,307 km (0.11 R)
• M10: 6,646,783 km (0.115 R)
• M11: 7,033,344 km (0.116 R)
• M12: 8,173,130 km (0.111 R)
• M13: 8,729,784 km (0.07 R)
• M14: 9,134,147 km (0.107 R)
• M15: 11,413,121 km (0.073 R)
• M16: 14,280,463 km (0.092 R)
• M17: 15,416,659 km (0.101 R)
• M18: 16,178,112 km (0.081 R)
• M19: 16,524,431 km (0.116 R)
• M20: 16,875,837 km (0.111 R)
• M21: 17,321,788 km (0.093 R)
• M22: 18,330,825 km (0.087 R)
• M23: 24,417,813 km (0.097 R)
• M24: 32,540,529 km (0.063 R)
• M25: 38,034,361 km (0.108 R)
• M26: 39,264,804 km (0.055 R)
• M27: 40,047,051 km (0.072 R)
• M28: 40,204,727 km (0.105 R)
• M29: 43,280,310 km (0.064 R)
• M30: 45,472,666 km (0.088 R)
• M31: 50,260,397 km (0.105 R)
• M32: 50,627,809 km (0.11 R)
• M33: 52,870,131 km (0.113 R)
• M34: 58,155,574 km (0.098 R)
• M35: 58,357,830 km (0.086 R)
• M36: 58,763,689 km (0.117 R)
• M37: 59,376,143 km (0.115 R)
• M38: 60,613,616 km (0.043 R)
• M39: 63,139,876 km (0.102 R)
• M40: 72,768,294 km (0.035 R)
• M41: 84,879,887 km (0.111 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: 527 - 12,052 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit