🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 482.8

Radius: 14.6

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.61 AU - 0.83 AU

Year: 414 Days

Day: 10.5 Hours

Environment

Temp: -166 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 78,668,904 km

• M1: 181,761 km (0.12 R)
• M2: 639,531 km (0.074 R)
• M3: 1,093,860 km (0.073 R)
• M4: 1,604,288 km (0.113 R)
• M5: 2,113,818 km (0.092 R)
• M6: 2,907,734 km (0.074 R)
• M7: 3,608,001 km (0.111 R)
• M8: 4,705,601 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 53

Radius: 11.5

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.75 AU - 0.79 AU

Year: 458 Days

Day: 8.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 78,668,904 km

• M1: 143,016 km (0.099 R)
• M2: 568,023 km (0.077 R)
• M3: 1,526,347 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 154

Radius: 11.7

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.93 AU - 1.15 AU

Year: 719 Days

Day: 6.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 78,668,904 km

• M1: 152,889 km (0.106 R)
• M2: 670,198 km (0.052 R)
• M3: 1,095,804 km (0.105 R)
• M4: 1,980,526 km (0.119 R)
• M5: 2,661,496 km (0.041 R)
• M6: 4,477,015 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 850.2

Radius: 14.2

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.15 AU - 1.65 AU

Year: 1124 Days

Day: 5.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 13.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 78,668,904 km

• M1: 176,675 km (0.086 R)
• M2: 661,821 km (0.034 R)
• M3: 1,129,314 km (0.111 R)
• M4: 1,996,384 km (0.083 R)
• M5: 3,020,381 km (0.054 R)
• M6: 3,958,360 km (0.069 R)
• M7: 4,698,570 km (0.115 R)
• M8: 6,272,639 km (0.087 R)
• M9: 6,740,132 km (0.083 R)
• M10: 7,878,273 km (0.088 R)
• M11: 10,437,144 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.1

Radius: 8.7

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.78 AU - 4.06 AU

Year: 4290 Days

Day: 12.8 Hours

Environment

Temp: -217 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 78,668,904 km

• M1: 108,159 km (0.1 R)
• M2: 393,891 km (0.07 R)
• M3: 1,031,926 km (0.046 R)
• M4: 1,884,634 km (0.049 R)
• M5: 2,873,775 km (0.098 R)
• M6: 3,361,913 km (0.119 R)
• M7: 4,348,212 km (0.095 R)
• M8: 4,685,854 km (0.041 R)
• M9: 5,016,615 km (0.06 R)
• M10: 7,309,502 km (0.09 R)
• M11: 11,027,308 km (0.09 R)
• M12: 11,872,386 km (0.068 R)
• M13: 12,805,428 km (0.068 R)
• M14: 14,666,575 km (0.104 R)
• M15: 19,455,203 km (0.118 R)
• M16: 20,126,449 km (0.096 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 189.9

Radius: 4.7

Gravity: 8.6 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.67 AU - 10.17 AU

Year: 16571 Days

Day: 23.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 78,668,904 km

• M1: 58,792 km (0.104 R)
• M2: 1,643,482 km (0.096 R)
• M3: 4,802,241 km (0.077 R)
• M4: 5,489,344 km (0.046 R)
• M5: 8,764,191 km (0.091 R)
• M6: 11,356,124 km (0.101 R)
• M7: 11,841,719 km (0.084 R)
• M8: 17,343,031 km (0.082 R)
• M9: 17,698,625 km (0.036 R)
• M10: 27,956,850 km (0.074 R)
• M11: 35,786,204 km (0.082 R)
• M12: 39,214,838 km (0.084 R)
• M13: 41,071,198 km (0.034 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.8

Radius: 5.3

Gravity: 26.91 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 8.36 AU - 10.74 AU

Year: 20017 Days

Day: 22.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 78,668,904 km

• M1: 66,571 km (0.09 R)
• M2: 272,418 km (0.098 R)
• M3: 704,157 km (0.087 R)
• M4: 869,164 km (0.115 R)
• M5: 1,125,574 km (0.111 R)
• M6: 1,809,985 km (0.069 R)
• M7: 2,252,495 km (0.086 R)
• M8: 3,020,979 km (0.105 R)
• M9: 3,825,666 km (0.084 R)
• M10: 5,806,641 km (0.108 R)
• M11: 7,817,087 km (0.077 R)
• M12: 8,020,091 km (0.112 R)
• M13: 9,541,801 km (0.114 R)
• M14: 9,832,470 km (0.067 R)
• M15: 10,009,594 km (0.109 R)
• M16: 10,864,994 km (0.106 R)
• M17: 11,310,497 km (0.094 R)
• M18: 11,834,388 km (0.062 R)
• M19: 14,853,722 km (0.108 R)
• M20: 15,641,505 km (0.09 R)
• M21: 17,300,096 km (0.115 R)
• M22: 17,819,650 km (0.101 R)
• M23: 20,478,602 km (0.046 R)
• M24: 22,973,446 km (0.118 R)
• M25: 32,567,756 km (0.061 R)
• M26: 32,961,946 km (0.094 R)
• M27: 35,118,399 km (0.116 R)
• M28: 41,993,618 km (0.062 R)
• M29: 47,828,683 km (0.099 R)
• M30: 50,938,973 km (0.097 R)
• M31: 51,647,917 km (0.094 R)
• M32: 59,886,571 km (0.119 R)
• M33: 68,958,934 km (0.115 R)
• M34: 69,391,720 km (0.118 R)
• M35: 74,956,013 km (0.221 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: 309 - 13,230 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit