🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.7

Radius: 11.6

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.53 AU - 0.75 AU

Year: 360 Days

Day: 6.8 Hours

Environment

Temp: -147 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,232,756 km

• M1: 144,362 km (0.115 R)
• M2: 514,018 km (0.064 R)
• M3: 924,515 km (0.101 R)
• M4: 1,332,917 km (0.098 R)
• M5: 1,739,973 km (0.109 R)
• M6: 2,256,085 km (0.1 R)
• M7: 2,792,543 km (0.077 R)
• M8: 3,781,086 km (0.049 R)
• M9: 4,268,925 km (0.043 R)
• M10: 4,740,607 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.6

Radius: 14

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.88 AU - 1 AU

Year: 641 Days

Day: 8 Hours

Environment

Temp: -178 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 53,232,756 km

• M1: 175,777 km (0.089 R)
• M2: 744,997 km (0.105 R)
• M3: 1,934,899 km (0.074 R)
• M4: 2,700,242 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 4.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 388.6

Radius: 11.6

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.66 AU - 4.38 AU

Year: 5666 Days

Day: 13.6 Hours

Environment

Temp: -219 °C

Axial Tilt: 93.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 53,232,756 km

• M1: 145,110 km (0.074 R)
• M2: 571,613 km (0.089 R)
• M3: 1,426,266 km (0.101 R)
• M4: 1,939,536 km (0.113 R)
• M5: 2,322,956 km (0.105 R)
• M6: 2,791,945 km (0.117 R)
• M7: 3,402,155 km (0.066 R)
• M8: 4,839,491 km (0.106 R)
• M9: 5,335,707 km (0.115 R)
• M10: 6,647,531 km (0.096 R)
• M11: 7,162,297 km (0.079 R)
• M12: 15,318,972 km (0.081 R)
• M13: 17,574,309 km (0.076 R)
• M14: 18,497,926 km (0.105 R)
• M15: 19,845,055 km (0.058 R)
• M16: 24,732,567 km (0.114 R)
• M17: 26,926,270 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 550.7

Radius: 13.1

Gravity: 3.21 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 4.66 AU - 5.06 AU

Year: 7531 Days

Day: 11.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,232,756 km

• M1: 163,062 km (0.111 R)
• M2: 743,801 km (0.08 R)
• M3: 1,593,816 km (0.113 R)
• M4: 2,341,805 km (0.095 R)
• M5: 2,750,357 km (0.05 R)
• M6: 5,238,618 km (0.081 R)
• M7: 6,578,866 km (0.077 R)
• M8: 7,001,031 km (0.058 R)
• M9: 8,136,479 km (0.056 R)
• M10: 9,303,641 km (0.073 R)
• M11: 9,973,241 km (0.043 R)
• M12: 10,579,412 km (0.102 R)
• M13: 12,124,608 km (0.112 R)
• M14: 15,168,027 km (0.102 R)
• M15: 18,549,089 km (0.071 R)
• M16: 20,340,972 km (0.06 R)
• M17: 21,240,953 km (0.113 R)
• M18: 22,011,083 km (0.09 R)
• M19: 23,525,612 km (0.093 R)
• M20: 24,100,815 km (0.082 R)
• M21: 26,319,651 km (0.087 R)
• M22: 27,118,504 km (0.112 R)
• M23: 30,090,265 km (0.072 R)
• M24: 30,670,705 km (0.118 R)
• M25: 31,357,359 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.9

Radius: 10.4

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 4.66 AU - 5.38 AU

Year: 7906 Days

Day: 10.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,232,756 km

• M1: 129,402 km (0.087 R)
• M2: 483,500 km (0.119 R)
• M3: 870,510 km (0.113 R)
• M4: 1,388,867 km (0.051 R)
• M5: 1,978,731 km (0.054 R)
• M6: 2,686,479 km (0.103 R)
• M7: 3,387,345 km (0.084 R)
• M8: 3,745,781 km (0.094 R)
• M9: 5,173,094 km (0.041 R)
• M10: 7,803,175 km (0.084 R)
• M11: 8,902,270 km (0.079 R)
• M12: 10,524,360 km (0.103 R)
• M13: 12,454,621 km (0.076 R)
• M14: 12,900,124 km (0.117 R)
• M15: 14,565,746 km (0.025 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 297.3

Radius: 5.9

Gravity: 8.54 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 4.92 AU - 6.9 AU

Year: 10099 Days

Day: 17.2 Hours

Environment

Temp: -228 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 53,232,756 km

• M1: 127,457 km (0.105 R)
• M2: 319,541 km (0.119 R)
• M3: 590,014 km (0.115 R)
• M4: 865,124 km (0.059 R)
• M5: 1,245,701 km (0.031 R)
• M6: 2,459,539 km (0.089 R)
• M7: 4,415,381 km (0.082 R)
• M8: 6,238,830 km (0.083 R)
• M9: 10,178,190 km (0.097 R)
• M10: 10,507,156 km (0.055 R)
• M11: 11,136,963 km (0.084 R)
• M12: 13,177,179 km (0.025 R)
• M13: 24,664,949 km (0.114 R)
• M14: 28,093,732 km (0.084 R)
• M15: 36,203,881 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.72 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 970.8

Radius: 4.6

Gravity: 45.88 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 5.38 AU - 8.06 AU

Year: 12245 Days

Day: 23.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 53,232,756 km

• M1: 57,595 km (0.119 R)
• M2: 215,571 km (0.107 R)
• M3: 643,869 km (0.115 R)
• M4: 929,751 km (0.106 R)
• M5: 1,394,252 km (0.108 R)
• M6: 1,637,797 km (0.085 R)
• M7: 1,804,001 km (0.075 R)
• M8: 2,563,509 km (0.084 R)
• M9: 3,570,602 km (0.098 R)
• M10: 3,968,084 km (0.075 R)
• M11: 5,409,758 km (0.048 R)
• M12: 6,531,293 km (0.096 R)
• M13: 8,864,721 km (0.077 R)
• M14: 9,379,786 km (0.111 R)
• M15: 12,701,906 km (0.069 R)
• M16: 17,918,983 km (0.046 R)
• M17: 19,160,944 km (0.09 R)
• M18: 21,999,863 km (0.094 R)
• M19: 23,616,417 km (0.076 R)
• M20: 25,107,160 km (0.094 R)
• M21: 26,765,004 km (0.047 R)
• M22: 28,826,911 km (0.032 R)
• M23: 32,534,994 km (0.09 R)
• M24: 33,019,691 km (0.08 R)
• M25: 35,006,799 km (0.111 R)
• M26: 37,336,038 km (0.11 R)
• M27: 41,728,232 km (0.068 R)
• M28: 50,544,184 km (0.102 R)
• M29: 51,685,316 km (0.097 R)
• M30: 52,345,193 km (0.094 R)
• M31: 54,698,517 km (0.065 R)
• M32: 58,181,604 km (0.067 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 480.2

Radius: 4.2

Gravity: 27.22 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 6.94 AU - 7.74 AU

Year: 13978 Days

Day: 23.7 Hours

Environment

Temp: -225 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 53,232,756 km

• M1: 52,359 km (0.104 R)
• M2: 183,108 km (0.101 R)
• M3: 347,067 km (0.099 R)
• M4: 610,808 km (0.066 R)
• M5: 1,296,266 km (0.11 R)
• M6: 1,546,244 km (0.074 R)
• M7: 3,379,715 km (0.103 R)
• M8: 4,339,685 km (0.07 R)
• M9: 4,770,227 km (0.045 R)
• M10: 5,787,792 km (0.107 R)
• M11: 6,081,901 km (0.077 R)
• M12: 6,270,694 km (0.075 R)
• M13: 6,860,558 km (0.086 R)
• M14: 7,148,235 km (0.11 R)
• M15: 7,835,936 km (0.083 R)
• M16: 18,686,868 km (0.079 R)
• M17: 19,736,746 km (0.059 R)
• M18: 20,825,520 km (0.106 R)
• M19: 22,939,487 km (0.091 R)
• M20: 28,947,188 km (0.042 R)
• M21: 32,025,015 km (0.07 R)
• M22: 34,590,917 km (0.03 R)
• M23: 37,165,048 km (0.104 R)
• M24: 46,081,231 km (0.104 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: 304 - 14,553 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit