🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.67 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 1.18 AU - 1.5 AU

Year: 703 Days

Day: 41.3 Hours

Environment

Temp: -95 °C

Axial Tilt: 0.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.38 AU - 1.4 AU

Year: 742 Days

Day: 29.8 Hours

Environment

Temp: -110 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.39 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.8

Radius: 8.3

Gravity: 5.09 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 2.62 AU - 4.16 AU

Year: 2828 Days

Day: 10.1 Hours

Environment

Temp: -152 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 70,775,129 km

• M1: 103,223 km (0.086 R)
• M2: 405,261 km (0.079 R)
• M3: 671,994 km (0.094 R)
• M4: 1,040,154 km (0.118 R)
• M5: 1,372,411 km (0.057 R)
• M6: 2,345,844 km (0.087 R)
• M7: 2,909,978 km (0.056 R)
• M8: 3,175,813 km (0.113 R)
• M9: 3,631,788 km (0.112 R)
• M10: 4,111,548 km (0.081 R)
• M11: 4,653,840 km (0.03 R)
• M12: 6,054,226 km (0.106 R)
• M13: 7,057,429 km (0.112 R)
• M14: 7,834,740 km (0.108 R)
• M15: 9,695,887 km (0.066 R)
• M16: 12,072,099 km (0.058 R)
• M17: 14,493,191 km (0.119 R)
• M18: 15,087,544 km (0.067 R)
• M19: 15,414,415 km (0.098 R)

Planet 4 - Ice Giant

Semi-Major Axis: 10.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 881.4

Radius: 6.8

Gravity: 19.06 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 10.17 AU - 11.29 AU

Year: 15923 Days

Day: 20.6 Hours

Environment

Temp: -208 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 70,775,129 km

• M1: 153,487 km (0.101 R)
• M2: 556,354 km (0.075 R)
• M3: 1,029,832 km (0.097 R)
• M4: 1,660,088 km (0.091 R)
• M5: 2,059,813 km (0.116 R)
• M6: 2,522,071 km (0.109 R)
• M7: 3,128,989 km (0.118 R)
• M8: 4,329,063 km (0.045 R)
• M9: 4,697,523 km (0.053 R)
• M10: 5,574,017 km (0.116 R)
• M11: 7,270,008 km (0.088 R)
• M12: 7,791,057 km (0.106 R)
• M13: 8,438,367 km (0.092 R)
• M14: 12,421,410 km (0.112 R)
• M15: 13,165,361 km (0.062 R)
• M16: 13,796,065 km (0.1 R)
• M17: 22,509,992 km (0.115 R)
• M18: 23,007,554 km (0.039 R)
• M19: 24,128,042 km (0.087 R)
• M20: 25,930,547 km (0.115 R)
• M21: 30,765,251 km (0.088 R)
• M22: 55,376,644 km (0.084 R)
• M23: 55,919,385 km (0.106 R)
• M24: 56,831,633 km (0.119 R)
• M25: 63,103,224 km (0.074 R)
• M26: 65,493,649 km (0.105 R)
• M27: 66,100,567 km (0.113 R)
• M28: 67,325,475 km (0.038 R)

Planet 5 - Ice Giant

Semi-Major Axis: 11.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.9

Radius: 3.5

Gravity: 43.26 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 11.53 AU - 12.03 AU

Year: 18317 Days

Day: 16 Hours

Environment

Temp: -209 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 70,775,129 km

• M1: 44,431 km (0.066 R)
• M2: 396,285 km (0.066 R)
• M3: 823,686 km (0.094 R)
• M4: 953,537 km (0.03 R)
• M5: 1,632,412 km (0.047 R)
• M6: 1,929,663 km (0.057 R)
• M7: 2,261,770 km (0.059 R)
• M8: 3,140,508 km (0.062 R)
• M9: 3,570,752 km (0.044 R)
• M10: 3,684,296 km (0.072 R)
• M11: 4,449,041 km (0.03 R)
• M12: 8,930,843 km (0.059 R)
• M13: 10,995,743 km (0.078 R)
• M14: 11,176,008 km (0.095 R)
• M15: 15,961,195 km (0.113 R)
• M16: 17,462,410 km (0.114 R)
• M17: 18,627,029 km (0.102 R)
• M18: 21,017,304 km (0.11 R)
• M19: 22,237,873 km (0.066 R)
• M20: 26,288,684 km (0.115 R)
• M21: 28,149,532 km (0.118 R)
• M22: 31,042,905 km (0.104 R)
• M23: 32,995,157 km (0.116 R)
• M24: 37,956,271 km (0.118 R)
• M25: 39,479,925 km (0.076 R)
• M26: 42,060,489 km (0.103 R)
• M27: 45,057,083 km (0.103 R)
• M28: 46,921,522 km (0.089 R)
• M29: 50,969,939 km (0.112 R)
• M30: 52,143,834 km (0.073 R)
• M31: 57,740,290 km (0.026 R)
• M32: 59,938,032 km (0.081 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 787.1

Radius: 7

Gravity: 16.06 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 11.01 AU - 14.77 AU

Year: 20966 Days

Day: 24.5 Hours

Environment

Temp: -207 °C

Axial Tilt: 18.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,775,129 km

• M1: 87,066 km (0.099 R)
• M2: 332,406 km (0.115 R)
• M3: 574,157 km (0.114 R)
• M4: 1,153,250 km (0.115 R)
• M5: 1,433,297 km (0.071 R)
• M6: 2,534,487 km (0.059 R)
• M7: 3,793,652 km (0.093 R)
• M8: 6,305,101 km (0.103 R)
• M9: 6,802,814 km (0.06 R)
• M10: 7,133,126 km (0.108 R)
• M11: 8,135,880 km (0.095 R)
• M12: 8,508,080 km (0.088 R)
• M13: 10,111,769 km (0.084 R)
• M14: 10,857,215 km (0.095 R)
• M15: 12,111,444 km (0.078 R)
• M16: 14,514,584 km (0.113 R)
• M17: 15,951,023 km (0.053 R)
• M18: 16,788,771 km (0.096 R)
• M19: 19,196,698 km (0.118 R)
• M20: 19,477,792 km (0.119 R)
• M21: 19,952,317 km (0.082 R)
• M22: 22,029,483 km (0.073 R)
• M23: 28,629,741 km (0.074 R)
• M24: 30,116,445 km (0.098 R)
• M25: 43,263,704 km (0.03 R)
• M26: 44,397,058 km (0.088 R)
• M27: 46,050,264 km (0.101 R)
• M28: 49,830,901 km (0.077 R)
• M29: 54,559,690 km (0.069 R)
• M30: 63,228,587 km (0.085 R)
• M31: 66,168,185 km (0.106 R)
• M32: 67,239,755 km (0.042 R)
• M33: 74,835,138 km (0.088 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 277.1

Radius: 7.6

Gravity: 4.8 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 12.6 AU - 18.82 AU

Year: 28210 Days

Day: 17.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 37.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,775,129 km

• M1: 94,546 km (0.092 R)
• M2: 342,729 km (0.056 R)
• M3: 643,121 km (0.108 R)
• M4: 3,588,255 km (0.083 R)
• M5: 3,911,984 km (0.076 R)
• M6: 4,255,012 km (0.088 R)
• M7: 4,584,277 km (0.105 R)
• M8: 5,256,720 km (0.064 R)
• M9: 6,974,253 km (0.037 R)
• M10: 9,251,432 km (0.098 R)
• M11: 10,796,927 km (0.045 R)
• M12: 11,982,789 km (0.091 R)
• M13: 12,978,513 km (0.115 R)
• M14: 13,322,289 km (0.055 R)
• M15: 14,028,241 km (0.12 R)
• M16: 14,463,721 km (0.051 R)
• M17: 20,047,611 km (0.09 R)
• M18: 21,543,589 km (0.089 R)
• M19: 22,812,628 km (0.108 R)
• M20: 25,072,603 km (0.062 R)
• M21: 27,252,842 km (0.067 R)
• M22: 27,703,581 km (0.107 R)
• M23: 29,556,500 km (0.11 R)
• M24: 31,121,593 km (0.065 R)
• M25: 39,494,885 km (0.1 R)
• M26: 42,287,129 km (0.025 R)
• M27: 43,501,266 km (0.042 R)
• M28: 49,253,304 km (0.039 R)
• M29: 49,922,156 km (0.117 R)
• M30: 51,792,578 km (0.1 R)
• M31: 54,774,512 km (0.053 R)
• M32: 58,426,795 km (0.085 R)
• M33: 61,849,744 km (0.039 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 544 - 12,404 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit