🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.55 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 323.9

Radius: 12.2

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.85 AU - 1.35 AU

Year: 782 Days

Day: 8.9 Hours

Environment

Temp: -177 °C

Axial Tilt: 170.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,756,246 km

• M1: 151,692 km (0.044 R)
• M2: 650,152 km (0.084 R)
• M3: 1,461,870 km (0.087 R)
• M4: 2,089,733 km (0.1 R)
• M5: 2,472,554 km (0.099 R)
• M6: 2,969,817 km (0.088 R)
• M7: 3,754,607 km (0.097 R)
• M8: 4,225,093 km (0.11 R)
• M9: 4,642,172 km (0.03 R)
• M10: 5,771,187 km (0.043 R)
• M11: 6,574,527 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 153.6

Radius: 14.8

Gravity: 0.7 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 1 AU - 1.5 AU

Year: 948 Days

Day: 14.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 31,756,246 km

• M1: 186,848 km (0.12 R)
• M2: 1,165,966 km (0.094 R)
• M3: 1,788,592 km (0.054 R)
• M4: 3,144,547 km (0.117 R)
• M5: 3,625,953 km (0.105 R)
• M6: 4,116,485 km (0.099 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.7

Radius: 14.2

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.23 AU - 1.29 AU

Year: 959 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 31,756,246 km

• M1: 177,573 km (0.059 R)
• M2: 760,256 km (0.103 R)
• M3: 1,220,719 km (0.065 R)
• M4: 1,667,717 km (0.049 R)
• M5: 2,263,865 km (0.106 R)
• M6: 2,824,109 km (0.097 R)
• M7: 3,268,265 km (0.086 R)
• M8: 4,329,362 km (0.112 R)
• M9: 5,419,482 km (0.091 R)
• M10: 5,983,915 km (0.113 R)
• M11: 6,705,126 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 853.9

Radius: 11.9

Gravity: 6.03 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.2 AU - 1.74 AU

Year: 1209 Days

Day: 9.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 31,756,246 km

• M1: 153,637 km (0.072 R)
• M2: 1,401,134 km (0.096 R)
• M3: 3,324,364 km (0.053 R)
• M4: 4,627,810 km (0.094 R)
• M5: 5,117,294 km (0.102 R)
• M6: 5,904,927 km (0.033 R)
• M7: 6,970,064 km (0.07 R)
• M8: 8,270,967 km (0.101 R)
• M9: 11,453,363 km (0.062 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.6

Radius: 8.5

Gravity: 9.77 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 1.93 AU - 1.97 AU

Year: 1847 Days

Day: 8.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 31,756,246 km

• M1: 109,356 km (0.044 R)
• M2: 466,745 km (0.1 R)
• M3: 851,661 km (0.057 R)
• M4: 1,204,263 km (0.111 R)
• M5: 2,020,020 km (0.105 R)
• M6: 2,401,046 km (0.114 R)
• M7: 2,933,165 km (0.113 R)
• M8: 3,211,567 km (0.082 R)
• M9: 3,750,718 km (0.029 R)
• M10: 4,487,787 km (0.091 R)
• M11: 4,922,817 km (0.118 R)
• M12: 5,206,155 km (0.101 R)
• M13: 5,710,450 km (0.104 R)
• M14: 7,620,216 km (0.1 R)
• M15: 8,301,186 km (0.073 R)
• M16: 8,672,189 km (0.081 R)
• M17: 8,957,771 km (0.087 R)
• M18: 10,552,335 km (0.102 R)
• M19: 11,024,914 km (0.085 R)
• M20: 12,729,732 km (0.119 R)
• M21: 13,140,527 km (0.057 R)
• M22: 13,773,177 km (0.12 R)
• M23: 15,282,170 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 733.9

Radius: 13.1

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.81 AU - 4.68 AU

Year: 4906 Days

Day: 10 Hours

Environment

Temp: -220 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 31,756,246 km

• M1: 162,912 km (0.108 R)
• M2: 702,512 km (0.077 R)
• M3: 1,486,404 km (0.086 R)
• M4: 2,104,992 km (0.078 R)
• M5: 2,819,022 km (0.048 R)
• M6: 3,233,708 km (0.076 R)
• M7: 4,579,041 km (0.055 R)
• M8: 5,607,078 km (0.116 R)
• M9: 7,187,131 km (0.107 R)
• M10: 9,046,632 km (0.028 R)
• M11: 9,704,414 km (0.066 R)
• M12: 11,489,116 km (0.111 R)
• M13: 12,360,075 km (0.101 R)
• M14: 12,913,587 km (0.113 R)
• M15: 16,111,092 km (0.099 R)
• M16: 16,833,052 km (0.078 R)
• M17: 17,765,944 km (0.092 R)
• M18: 23,485,519 km (0.111 R)
• M19: 24,335,834 km (0.118 R)
• M20: 27,262,866 km (0.119 R)
• M21: 30,055,110 km (0.058 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.4

Radius: 12.3

Gravity: 3.33 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.54 AU - 4.3 AU

Year: 5264 Days

Day: 7.5 Hours

Environment

Temp: -213 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,756,246 km

• M1: 153,637 km (0.091 R)
• M2: 585,975 km (0.074 R)
• M3: 1,089,372 km (0.096 R)
• M4: 1,667,867 km (0.058 R)
• M5: 2,829,943 km (0.062 R)
• M6: 7,099,616 km (0.111 R)
• M7: 8,070,805 km (0.101 R)
• M8: 8,894,341 km (0.092 R)
• M9: 9,366,771 km (0.076 R)
• M10: 11,019,080 km (0.099 R)
• M11: 12,175,771 km (0.093 R)
• M12: 12,759,053 km (0.025 R)
• M13: 13,462,911 km (0.095 R)
• M14: 16,016,846 km (0.083 R)
• M15: 19,925,539 km (0.051 R)
• M16: 22,064,489 km (0.09 R)
• M17: 24,967,436 km (0.12 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.4

Radius: 11.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 3.48 AU - 5.62 AU

Year: 6583 Days

Day: 10.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,756,246 km

• M1: 147,204 km (0.076 R)
• M2: 618,737 km (0.052 R)
• M3: 1,094,009 km (0.102 R)
• M4: 1,719,777 km (0.098 R)
• M5: 2,487,513 km (0.078 R)
• M6: 3,097,873 km (0.108 R)
• M7: 4,236,163 km (0.107 R)
• M8: 5,515,075 km (0.12 R)
• M9: 6,195,745 km (0.111 R)
• M10: 7,177,556 km (0.067 R)
• M11: 8,985,447 km (0.068 R)
• M12: 9,363,480 km (0.106 R)
• M13: 12,419,466 km (0.09 R)
• M14: 17,474,527 km (0.105 R)
• M15: 21,592,508 km (0.056 R)
• M16: 24,562,774 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 151.3

Radius: 5.2

Gravity: 5.6 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.79 AU - 7.39 AU

Year: 11474 Days

Day: 16.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 31,756,246 km

• M1: 72,555 km (0.092 R)
• M2: 240,404 km (0.044 R)
• M3: 647,759 km (0.045 R)
• M4: 861,833 km (0.103 R)
• M5: 1,873,265 km (0.08 R)
• M6: 2,047,696 km (0.091 R)
• M7: 4,703,207 km (0.04 R)
• M8: 15,103,999 km (0.114 R)
• M9: 17,924,817 km (0.11 R)
• M10: 20,575,990 km (0.088 R)
• M11: 20,790,065 km (0.117 R)
• M12: 25,969,442 km (0.083 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 16,396 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit