🌌 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 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.53 AU - 0.75 AU

Year: 326 Days

Day: 36.2 Hours

Environment

Temp: -135 °C

Axial Tilt: 47.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,185,599 km

• M1: 508,334 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.2

Radius: 10.2

Gravity: 6.65 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 0.77 AU - 0.79 AU

Year: 438 Days

Day: 6.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,185,599 km

• M1: 126,859 km (0.04 R)
• M2: 465,848 km (0.09 R)
• M3: 902,823 km (0.098 R)
• M4: 1,384,079 km (0.056 R)
• M5: 2,090,630 km (0.105 R)
• M6: 2,634,419 km (0.077 R)
• M7: 3,121,958 km (0.091 R)
• M8: 3,447,633 km (0.11 R)
• M9: 4,195,472 km (0.108 R)
• M10: 4,549,720 km (0.097 R)
• M11: 4,954,681 km (0.039 R)
• M12: 5,334,810 km (0.119 R)
• M13: 5,717,481 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865.9

Radius: 14.7

Gravity: 4.01 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.91 AU - 1.33 AU

Year: 754 Days

Day: 8.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,185,599 km

• M1: 182,809 km (0.099 R)
• M2: 657,034 km (0.093 R)
• M3: 1,197,830 km (0.06 R)
• M4: 1,740,721 km (0.094 R)
• M5: 2,438,445 km (0.076 R)
• M6: 3,032,947 km (0.12 R)
• M7: 3,651,235 km (0.119 R)
• M8: 4,209,086 km (0.115 R)
• M9: 5,017,812 km (0.102 R)
• M10: 5,593,614 km (0.1 R)
• M11: 6,151,614 km (0.092 R)
• M12: 6,724,723 km (0.109 R)
• M13: 7,520,734 km (0.066 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 801.6

Radius: 13.8

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 6 AU - 6.02 AU

Year: 9368 Days

Day: 9.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 118.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 27,185,599 km

• M1: 171,589 km (0.106 R)
• M2: 804,986 km (0.05 R)
• M3: 1,649,317 km (0.074 R)
• M4: 2,438,744 km (0.102 R)
• M5: 3,615,781 km (0.113 R)
• M6: 5,079,446 km (0.088 R)
• M7: 5,840,899 km (0.115 R)
• M8: 7,025,714 km (0.117 R)
• M9: 7,886,650 km (0.102 R)
• M10: 8,816,850 km (0.112 R)
• M11: 11,880,016 km (0.088 R)
• M12: 12,393,884 km (0.082 R)
• M13: 12,982,402 km (0.105 R)
• M14: 13,466,501 km (0.065 R)
• M15: 14,406,873 km (0.071 R)
• M16: 14,860,454 km (0.111 R)
• M17: 19,149,724 km (0.073 R)
• M18: 20,910,342 km (0.073 R)
• M19: 22,171,152 km (0.055 R)
• M20: 23,393,068 km (0.074 R)
• M21: 23,930,274 km (0.084 R)
• M22: 26,066,531 km (0.076 R)
• M23: 26,643,979 km (0.062 R)
• M24: 33,122,764 km (0.117 R)
• M25: 36,365,298 km (0.094 R)
• M26: 37,086,808 km (0.088 R)
• M27: 37,940,563 km (0.093 R)
• M28: 47,212,639 km (0.105 R)
• M29: 48,071,331 km (0.031 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 259.8

Radius: 5.7

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 5.77 AU - 7.81 AU

Year: 11250 Days

Day: 15.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,185,599 km

• M1: 71,358 km (0.083 R)
• M2: 407,953 km (0.068 R)
• M3: 975,079 km (0.086 R)
• M4: 1,922,482 km (0.109 R)
• M5: 2,540,920 km (0.062 R)
• M6: 2,846,099 km (0.106 R)
• M7: 3,327,505 km (0.077 R)
• M8: 3,599,325 km (0.045 R)
• M9: 4,532,067 km (0.087 R)
• M10: 10,938,297 km (0.103 R)
• M11: 14,642,939 km (0.102 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 293.1

Radius: 3.5

Gravity: 23.93 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 7.67 AU - 9.13 AU

Year: 15479 Days

Day: 21.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 27,185,599 km

• M1: 44,281 km (0.108 R)
• M2: 311,313 km (0.111 R)
• M3: 478,115 km (0.05 R)
• M4: 694,583 km (0.103 R)
• M5: 921,972 km (0.06 R)
• M6: 1,114,953 km (0.09 R)
• M7: 1,347,278 km (0.098 R)
• M8: 2,061,159 km (0.063 R)
• M9: 3,519,888 km (0.111 R)
• M10: 3,672,478 km (0.11 R)
• M11: 5,317,456 km (0.113 R)
• M12: 5,484,707 km (0.048 R)
• M13: 6,336,816 km (0.086 R)
• M14: 10,215,440 km (0.054 R)
• M15: 10,526,305 km (0.089 R)
• M16: 11,112,429 km (0.103 R)
• M17: 12,407,947 km (0.115 R)
• M18: 15,027,256 km (0.116 R)
• M19: 15,632,678 km (0.044 R)
• M20: 16,324,419 km (0.052 R)
• M21: 19,139,402 km (0.097 R)
• M22: 22,003,453 km (0.118 R)
• M23: 27,060,310 km (0.108 R)
• M24: 27,356,514 km (0.061 R)
• M25: 27,555,180 km (0.093 R)
• M26: 30,973,042 km (0.099 R)
• M27: 33,063,673 km (0.089 R)
• M28: 40,795,339 km (0.11 R)
• M29: 41,707,737 km (0.058 R)
• M30: 44,115,963 km (0.056 R)
• M31: 44,252,397 km (0.094 R)
• M32: 45,354,185 km (0.062 R)
• M33: 47,755,829 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34.4

Radius: 4.9

Gravity: 1.43 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 8.16 AU - 11.14 AU

Year: 19060 Days

Day: 22.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 27,185,599 km

• M1: 65,973 km (0.108 R)
• M2: 1,089,820 km (0.105 R)
• M3: 1,316,012 km (0.097 R)
• M4: 1,770,940 km (0.083 R)
• M5: 4,332,055 km (0.111 R)
• M6: 5,163,969 km (0.079 R)
• M7: 6,278,473 km (0.037 R)
• M8: 6,747,014 km (0.075 R)
• M9: 7,373,380 km (0.114 R)
• M10: 8,703,155 km (0.101 R)
• M11: 9,810,180 km (0.101 R)
• M12: 13,333,209 km (0.101 R)
• M13: 17,014,514 km (0.097 R)
• M14: 17,616,346 km (0.06 R)
• M15: 21,389,952 km (0.119 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 443 - 15,963 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit