🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.6

Radius: 13.8

Gravity: 4.31 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.5 AU - 0.64 AU

Year: 297 Days

Day: 11.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,532,678 km

• M1: 171,589 km (0.08 R)
• M2: 660,774 km (0.049 R)
• M3: 1,114,803 km (0.046 R)
• M4: 1,719,328 km (0.114 R)
• M5: 2,330,735 km (0.038 R)
• M6: 2,769,206 km (0.098 R)
• M7: 3,284,571 km (0.114 R)
• M8: 3,792,456 km (0.12 R)
• M9: 4,313,655 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638

Radius: 11.6

Gravity: 4.74 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.5 AU - 0.84 AU

Year: 379 Days

Day: 7.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 10.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 30,532,678 km

• M1: 144,362 km (0.041 R)
• M2: 653,743 km (0.095 R)
• M3: 1,040,902 km (0.086 R)
• M4: 1,554,023 km (0.091 R)
• M5: 2,543,014 km (0.109 R)
• M6: 2,995,249 km (0.1 R)
• M7: 3,559,532 km (0.083 R)
• M8: 5,125,073 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 380.3

Radius: 13.2

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.29 AU - 1.35 AU

Year: 1047 Days

Day: 9.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,532,678 km

• M1: 164,109 km (0.094 R)
• M2: 592,108 km (0.107 R)
• M3: 1,762,712 km (0.089 R)
• M4: 2,394,015 km (0.12 R)
• M5: 2,816,629 km (0.074 R)
• M6: 3,342,316 km (0.118 R)
• M7: 4,130,098 km (0.112 R)
• M8: 4,693,484 km (0.116 R)
• M9: 5,235,028 km (0.105 R)
• M10: 5,682,774 km (0.101 R)
• M11: 6,806,703 km (0.115 R)
• M12: 7,341,366 km (0.098 R)
• M13: 7,784,475 km (0.107 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 35.2

Radius: 13.8

Gravity: 0.18 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.43 AU - 1.91 AU

Year: 1490 Days

Day: 13.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 47.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,532,678 km

• M1: 171,589 km (0.092 R)
• M2: 1,280,109 km (0.057 R)
• M3: 1,795,174 km (0.078 R)
• M4: 2,732,256 km (0.061 R)
• M5: 3,323,317 km (0.029 R)
• M6: 3,876,380 km (0.063 R)
• M7: 4,423,609 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602

Radius: 8.3

Gravity: 8.74 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.24 AU - 2.26 AU

Year: 2330 Days

Day: 6.9 Hours

Environment

Temp: -199 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,532,678 km

• M1: 103,223 km (0.091 R)
• M2: 400,025 km (0.07 R)
• M3: 902,674 km (0.112 R)
• M4: 1,311,674 km (0.072 R)
• M5: 1,575,116 km (0.074 R)
• M6: 2,263,266 km (0.114 R)
• M7: 3,105,502 km (0.056 R)
• M8: 3,706,586 km (0.071 R)
• M9: 4,181,709 km (0.076 R)
• M10: 5,779,863 km (0.116 R)
• M11: 6,472,651 km (0.117 R)
• M12: 6,936,404 km (0.118 R)
• M13: 7,219,593 km (0.06 R)
• M14: 7,991,967 km (0.118 R)
• M15: 8,687,747 km (0.089 R)
• M16: 9,526,542 km (0.074 R)
• M17: 11,287,010 km (0.078 R)
• M18: 13,210,838 km (0.079 R)
• M19: 14,778,624 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.3

Radius: 13.2

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.57 AU - 2.61 AU

Year: 2877 Days

Day: 10.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 30,532,678 km

• M1: 164,258 km (0.05 R)
• M2: 683,812 km (0.112 R)
• M3: 1,649,765 km (0.109 R)
• M4: 2,163,784 km (0.101 R)
• M5: 2,599,861 km (0.043 R)
• M6: 3,027,861 km (0.089 R)
• M7: 3,466,482 km (0.077 R)
• M8: 4,069,660 km (0.068 R)
• M9: 4,651,297 km (0.084 R)
• M10: 5,165,914 km (0.078 R)
• M11: 5,666,468 km (0.05 R)
• M12: 10,171,758 km (0.056 R)
• M13: 11,496,447 km (0.036 R)
• M14: 12,222,296 km (0.115 R)
• M15: 12,797,799 km (0.12 R)
• M16: 13,391,403 km (0.075 R)
• M17: 15,588,996 km (0.066 R)
• M18: 16,746,734 km (0.112 R)
• M19: 20,073,491 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.5

Radius: 15

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.76 AU - 4.34 AU

Year: 4617 Days

Day: 6.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 5.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,532,678 km

• M1: 186,549 km (0.081 R)
• M2: 657,333 km (0.105 R)
• M3: 1,126,173 km (0.072 R)
• M4: 2,126,384 km (0.079 R)
• M5: 2,920,749 km (0.052 R)
• M6: 3,388,541 km (0.083 R)
• M7: 3,861,719 km (0.067 R)
• M8: 5,215,580 km (0.118 R)
• M9: 7,382,057 km (0.064 R)
• M10: 8,529,921 km (0.116 R)
• M11: 9,208,198 km (0.092 R)
• M12: 9,879,294 km (0.097 R)
• M13: 10,493,243 km (0.076 R)
• M14: 13,155,338 km (0.074 R)
• M15: 13,630,460 km (0.056 R)
• M16: 16,421,508 km (0.098 R)
• M17: 17,855,104 km (0.087 R)
• M18: 19,100,955 km (0.119 R)
• M19: 19,779,681 km (0.069 R)
• M20: 20,827,913 km (0.102 R)
• M21: 24,990,175 km (0.106 R)
• M22: 26,049,627 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.9

Radius: 10.9

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 5.06 AU - 5.28 AU

Year: 8114 Days

Day: 6.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,532,678 km

• M1: 137,181 km (0.119 R)
• M2: 486,492 km (0.108 R)
• M3: 956,230 km (0.073 R)
• M4: 1,507,049 km (0.057 R)
• M5: 1,870,273 km (0.066 R)
• M6: 2,230,504 km (0.095 R)
• M7: 2,998,839 km (0.119 R)
• M8: 3,539,486 km (0.114 R)
• M9: 5,303,993 km (0.05 R)
• M10: 6,283,709 km (0.116 R)
• M11: 8,716,619 km (0.069 R)
• M12: 9,360,040 km (0.08 R)
• M13: 10,295,924 km (0.069 R)
• M14: 13,531,875 km (0.073 R)
• M15: 14,066,987 km (0.073 R)
• M16: 15,236,693 km (0.112 R)
• M17: 16,110,943 km (0.089 R)
• M18: 19,201,335 km (0.048 R)
• M19: 19,809,002 km (0.084 R)
• M20: 20,152,180 km (0.118 R)
• M21: 22,443,121 km (0.108 R)
• M22: 27,621,601 km (0.093 R)
• M23: 30,169,403 km (0.067 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 10,598 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit