🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 30.3

Radius: 11.6

Gravity: 0.23 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.76 AU - 0.9 AU

Year: 481 Days

Day: 11.1 Hours

Environment

Temp: -147 °C

Axial Tilt: 68.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 83,540,081 km

• M1: 145,110 km (0.116 R)
• M2: 508,633 km (0.118 R)
• M3: 894,894 km (0.096 R)
• M4: 1,339,051 km (0.078 R)
• M5: 1,942,229 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.5

Radius: 10.7

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 0.83 AU - 1.01 AU

Year: 561 Days

Day: 10.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 37.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,540,081 km

• M1: 133,441 km (0.109 R)
• M2: 559,646 km (0.114 R)
• M3: 1,034,768 km (0.062 R)
• M4: 1,535,024 km (0.116 R)
• M5: 2,045,751 km (0.102 R)
• M6: 3,040,427 km (0.057 R)
• M7: 4,489,582 km (0.093 R)
• M8: 5,491,289 km (0.097 R)
• M9: 5,956,239 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.1

Radius: 8.1

Gravity: 14.6 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.93 AU - 1.07 AU

Year: 636 Days

Day: 12.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 83,540,081 km

• M1: 100,829 km (0.11 R)
• M2: 417,976 km (0.106 R)
• M3: 703,858 km (0.092 R)
• M4: 999,463 km (0.098 R)
• M5: 1,422,227 km (0.114 R)
• M6: 1,896,303 km (0.04 R)
• M7: 2,354,670 km (0.114 R)
• M8: 2,897,112 km (0.105 R)
• M9: 3,211,268 km (0.11 R)
• M10: 3,506,424 km (0.047 R)
• M11: 5,600,346 km (0.079 R)
• M12: 6,355,666 km (0.048 R)
• M13: 6,629,130 km (0.072 R)
• M14: 6,954,356 km (0.079 R)
• M15: 7,613,484 km (0.118 R)
• M16: 7,994,660 km (0.1 R)
• M17: 8,488,931 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 607.7

Radius: 14.4

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.86 AU - 1.18 AU

Year: 655 Days

Day: 14.2 Hours

Environment

Temp: -157 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,540,081 km

• M1: 179,517 km (0.092 R)
• M2: 639,531 km (0.06 R)
• M3: 1,242,111 km (0.073 R)
• M4: 1,694,645 km (0.109 R)
• M5: 2,194,451 km (0.087 R)
• M6: 2,727,768 km (0.111 R)
• M7: 3,579,279 km (0.075 R)
• M8: 4,325,772 km (0.111 R)
• M9: 4,906,810 km (0.086 R)
• M10: 5,486,502 km (0.1 R)
• M11: 5,979,128 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 105.8

Radius: 11.9

Gravity: 0.75 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.06 AU - 1.44 AU

Year: 889 Days

Day: 14.2 Hours

Environment

Temp: -175 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 83,540,081 km

• M1: 148,102 km (0.063 R)
• M2: 574,456 km (0.09 R)
• M3: 961,914 km (0.093 R)
• M4: 1,403,378 km (0.092 R)
• M5: 1,831,976 km (0.114 R)
• M6: 2,553,636 km (0.04 R)
• M7: 3,001,831 km (0.037 R)
• M8: 3,725,286 km (0.065 R)
• M9: 4,814,359 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.1

Radius: 10.3

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 1.33 AU - 1.43 AU

Year: 1031 Days

Day: 12.8 Hours

Environment

Temp: -182 °C

Axial Tilt: 46.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 83,540,081 km

• M1: 128,056 km (0.083 R)
• M2: 579,393 km (0.038 R)
• M3: 919,129 km (0.074 R)
• M4: 1,270,535 km (0.037 R)
• M5: 1,668,764 km (0.088 R)
• M6: 2,224,670 km (0.103 R)
• M7: 2,760,230 km (0.1 R)
• M8: 3,351,142 km (0.1 R)
• M9: 3,975,863 km (0.063 R)
• M10: 6,146,977 km (0.108 R)
• M11: 8,787,828 km (0.116 R)
• M12: 9,354,205 km (0.079 R)
• M13: 9,914,748 km (0.081 R)
• M14: 10,372,967 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.4

Radius: 8

Gravity: 13.66 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 2.22 AU - 3.26 AU

Year: 2884 Days

Day: 9.8 Hours

Environment

Temp: -190 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 83,540,081 km

• M1: 99,483 km (0.087 R)
• M2: 363,822 km (0.087 R)
• M3: 685,457 km (0.088 R)
• M4: 2,371,425 km (0.087 R)
• M5: 3,258,391 km (0.03 R)
• M6: 3,657,668 km (0.071 R)
• M7: 4,089,108 km (0.072 R)
• M8: 5,776,572 km (0.111 R)
• M9: 6,050,785 km (0.115 R)
• M10: 6,362,397 km (0.073 R)
• M11: 7,267,315 km (0.086 R)
• M12: 7,685,142 km (0.057 R)
• M13: 9,556,312 km (0.051 R)
• M14: 9,862,988 km (0.104 R)
• M15: 11,155,962 km (0.117 R)
• M16: 11,625,550 km (0.051 R)
• M17: 12,558,442 km (0.089 R)
• M18: 14,927,923 km (0.089 R)
• M19: 16,462,647 km (0.112 R)
• M20: 19,473,005 km (0.105 R)
• M21: 19,842,362 km (0.09 R)
• M22: 20,850,353 km (0.119 R)
• M23: 21,628,411 km (0.082 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 720.7

Radius: 7.4

Gravity: 13.16 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5 AU - 7.4 AU

Year: 9816 Days

Day: 24.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 83,540,081 km

• M1: 92,003 km (0.034 R)
• M2: 340,934 km (0.11 R)
• M3: 699,968 km (0.094 R)
• M4: 1,113,457 km (0.095 R)
• M5: 1,351,018 km (0.071 R)
• M6: 1,757,027 km (0.104 R)
• M7: 2,100,055 km (0.061 R)
• M8: 2,448,169 km (0.038 R)
• M9: 5,049,826 km (0.092 R)
• M10: 5,307,882 km (0.112 R)
• M11: 7,006,566 km (0.099 R)
• M12: 8,131,542 km (0.117 R)
• M13: 8,441,808 km (0.072 R)
• M14: 10,113,564 km (0.103 R)
• M15: 13,908,712 km (0.1 R)
• M16: 15,203,183 km (0.119 R)
• M17: 16,086,558 km (0.11 R)
• M18: 17,585,080 km (0.091 R)
• M19: 19,963,985 km (0.098 R)
• M20: 22,117,896 km (0.117 R)
• M21: 26,881,840 km (0.07 R)
• M22: 27,571,336 km (0.04 R)
• M23: 31,521,019 km (0.085 R)
• M24: 34,086,174 km (0.103 R)
• M25: 35,713,948 km (0.057 R)
• M26: 36,787,313 km (0.096 R)
• M27: 38,873,156 km (0.1 R)
• M28: 42,877,443 km (0.102 R)
• M29: 43,683,027 km (0.066 R)
• M30: 46,723,305 km (0.057 R)
• M31: 48,150,618 km (0.072 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 259.3

Radius: 3.1

Gravity: 26.98 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 8.63 AU - 8.67 AU

Year: 16175 Days

Day: 20.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 83,540,081 km

• M1: 38,596 km (0.076 R)
• M2: 161,267 km (0.114 R)
• M3: 312,360 km (0.072 R)
• M4: 540,048 km (0.062 R)
• M5: 820,844 km (0.118 R)
• M6: 1,406,519 km (0.07 R)
• M7: 1,617,602 km (0.108 R)
• M8: 2,741,830 km (0.117 R)
• M9: 2,980,887 km (0.068 R)
• M10: 4,105,265 km (0.025 R)
• M11: 5,970,451 km (0.108 R)
• M12: 6,150,567 km (0.12 R)
• M13: 6,597,565 km (0.114 R)
• M14: 9,547,486 km (0.103 R)
• M15: 9,893,506 km (0.066 R)
• M16: 10,402,288 km (0.053 R)
• M17: 10,610,528 km (0.11 R)
• M18: 12,849,260 km (0.112 R)
• M19: 13,454,384 km (0.03 R)
• M20: 19,620,658 km (0.104 R)
• M21: 19,858,818 km (0.078 R)
• M22: 20,018,589 km (0.08 R)
• M23: 21,161,666 km (0.074 R)
• M24: 21,412,093 km (0.039 R)
• M25: 21,918,930 km (0.116 R)
• M26: 29,773,417 km (0.079 R)
• M27: 36,014,790 km (0.098 R)
• M28: 39,312,974 km (0.107 R)
• M29: 39,818,166 km (0.103 R)
• M30: 43,880,646 km (0.065 R)
• M31: 44,697,450 km (0.112 R)
• M32: 46,221,404 km (0.06 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 804.4

Radius: 7.6

Gravity: 13.93 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.47 AU - 12.27 AU

Year: 21233 Days

Day: 23.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 83,540,081 km

• M1: 96,191 km (0.1 R)
• M2: 343,626 km (0.117 R)
• M3: 657,931 km (0.087 R)
• M4: 1,544,299 km (0.088 R)
• M5: 1,792,332 km (0.089 R)
• M6: 2,438,894 km (0.058 R)
• M7: 2,803,314 km (0.06 R)
• M8: 9,208,048 km (0.112 R)
• M9: 19,504,720 km (0.109 R)
• M10: 22,278,265 km (0.101 R)
• M11: 24,634,132 km (0.059 R)
• M12: 29,708,940 km (0.098 R)
• M13: 34,460,019 km (0.117 R)
• M14: 34,877,397 km (0.071 R)
• M15: 38,338,793 km (0.073 R)
• M16: 46,272,267 km (0.096 R)
• M17: 49,553,098 km (0.108 R)
• M18: 50,620,479 km (0.057 R)
• M19: 51,159,929 km (0.101 R)
• M20: 56,573,427 km (0.034 R)
• M21: 59,119,583 km (0.087 R)
• M22: 60,723,720 km (0.053 R)
• M23: 77,913,713 km (0.116 R)
• M24: 78,152,920 km (0.047 R)
• M25: 79,598,484 km (0.074 R)
• M26: 81,061,701 km (0.117 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 362 - 19,965 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit