🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.54 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 216.1

Radius: 8.5

Gravity: 2.99 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.88 AU - 1.26 AU

Year: 778 Days

Day: 10.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,734,674 km

• M1: 105,915 km (0.12 R)
• M2: 413,788 km (0.117 R)
• M3: 715,975 km (0.098 R)
• M4: 1,010,234 km (0.064 R)
• M5: 1,392,756 km (0.082 R)
• M6: 1,902,137 km (0.069 R)
• M7: 2,285,855 km (0.119 R)
• M8: 2,814,086 km (0.12 R)
• M9: 3,152,775 km (0.116 R)
• M10: 3,756,552 km (0.116 R)
• M11: 4,140,719 km (0.075 R)
• M12: 4,551,066 km (0.092 R)
• M13: 5,289,631 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.5

Radius: 11.8

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.94 AU - 1.36 AU

Year: 867 Days

Day: 10.7 Hours

Environment

Temp: -181 °C

Axial Tilt: 32.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,734,674 km

• M1: 147,504 km (0.099 R)
• M2: 615,894 km (0.098 R)
• M3: 1,669,662 km (0.118 R)
• M4: 3,003,476 km (0.112 R)
• M5: 3,570,153 km (0.093 R)
• M6: 4,121,721 km (0.102 R)
• M7: 4,823,484 km (0.081 R)
• M8: 5,244,901 km (0.118 R)
• M9: 5,673,350 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.3

Radius: 10.9

Gravity: 8.02 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.08 AU - 1.66 AU

Year: 1127 Days

Day: 10.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 49.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 17,734,674 km

• M1: 135,835 km (0.079 R)
• M2: 579,393 km (0.112 R)
• M3: 1,484,609 km (0.078 R)
• M4: 1,933,104 km (0.104 R)
• M5: 2,351,529 km (0.049 R)
• M6: 3,122,257 km (0.049 R)
• M7: 3,527,667 km (0.081 R)
• M8: 4,688,547 km (0.051 R)
• M9: 5,643,729 km (0.102 R)
• M10: 7,198,201 km (0.054 R)
• M11: 8,697,321 km (0.095 R)
• M12: 9,382,330 km (0.078 R)
• M13: 10,070,929 km (0.082 R)
• M14: 11,373,926 km (0.082 R)
• M15: 12,266,427 km (0.052 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 852.2

Radius: 10.3

Gravity: 8.03 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.91 AU - 2.03 AU

Year: 1944 Days

Day: 14.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 17,734,674 km

• M1: 128,056 km (0.111 R)
• M2: 462,257 km (0.113 R)
• M3: 1,033,572 km (0.046 R)
• M4: 1,355,207 km (0.062 R)
• M5: 2,038,869 km (0.068 R)
• M6: 2,459,688 km (0.086 R)
• M7: 3,443,593 km (0.068 R)
• M8: 5,019,607 km (0.098 R)
• M9: 5,550,679 km (0.062 R)
• M10: 7,029,305 km (0.066 R)
• M11: 7,905,649 km (0.08 R)
• M12: 8,561,337 km (0.078 R)
• M13: 13,849,621 km (0.117 R)
• M14: 14,298,116 km (0.105 R)
• M15: 14,895,460 km (0.119 R)
• M16: 15,701,643 km (0.089 R)
• M17: 16,939,715 km (0.068 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 523.8

Radius: 7.9

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 4.59 AU - 6.71 AU

Year: 9440 Days

Day: 15.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 17,734,674 km

• M1: 98,286 km (0.101 R)
• M2: 429,944 km (0.072 R)
• M3: 863,778 km (0.098 R)
• M4: 1,114,055 km (0.074 R)
• M5: 1,388,717 km (0.112 R)
• M6: 2,353,175 km (0.097 R)
• M7: 2,652,520 km (0.114 R)
• M8: 3,907,496 km (0.094 R)
• M9: 6,187,667 km (0.082 R)
• M10: 7,370,388 km (0.065 R)
• M11: 8,873,547 km (0.088 R)
• M12: 10,670,966 km (0.06 R)
• M13: 12,087,059 km (0.07 R)
• M14: 12,418,119 km (0.04 R)
• M15: 15,870,988 km (0.109 R)
• M16: 16,334,741 km (0.099 R)
• M17: 16,671,636 km (0.102 R)
• M18: 18,790,989 km (0.084 R)
• M19: 20,532,906 km (0.052 R)
• M20: 22,050,876 km (0.1 R)
• M21: 23,471,308 km (0.104 R)
• M22: 24,774,305 km (0.097 R)
• M23: 26,033,321 km (0.107 R)
• M24: 27,240,127 km (0.116 R)
• M25: 30,267,838 km (0.03 R)
• M26: 36,406,886 km (0.073 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 23.5

Radius: 4.2

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 5.62 AU - 6.14 AU

Year: 10022 Days

Day: 19.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 20.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 17,734,674 km

• M1: 52,359 km (0.036 R)
• M2: 275,260 km (0.103 R)
• M3: 497,712 km (0.111 R)
• M4: 636,689 km (0.074 R)
• M5: 1,212,192 km (0.032 R)
• M6: 1,728,903 km (0.079 R)
• M7: 2,126,534 km (0.059 R)
• M8: 2,976,998 km (0.114 R)
• M9: 3,811,305 km (0.116 R)
• M10: 4,014,010 km (0.076 R)
• M11: 4,854,601 km (0.105 R)
• M12: 6,876,565 km (0.084 R)
• M13: 7,687,984 km (0.076 R)
• M14: 8,101,622 km (0.114 R)
• M15: 8,467,987 km (0.104 R)
• M16: 9,200,718 km (0.084 R)
• M17: 14,372,765 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 126.4

Radius: 7.7

Gravity: 2.13 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.09 AU - 8.49 AU

Year: 13836 Days

Day: 19.9 Hours

Environment

Temp: -231 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 17,734,674 km

• M1: 96,640 km (0.1 R)
• M2: 630,106 km (0.106 R)
• M3: 1,063,790 km (0.119 R)
• M4: 1,310,029 km (0.105 R)
• M5: 1,906,176 km (0.118 R)
• M6: 2,323,704 km (0.066 R)
• M7: 2,954,408 km (0.077 R)
• M8: 4,551,366 km (0.055 R)
• M9: 5,125,971 km (0.073 R)
• M10: 5,840,750 km (0.116 R)
• M11: 7,503,829 km (0.044 R)
• M12: 8,424,155 km (0.041 R)
• M13: 13,402,324 km (0.086 R)
• M14: 17,655,690 km (0.11 R)
• M15: 18,657,098 km (0.112 R)
• M16: 22,268,241 km (0.067 R)
• M17: 23,278,326 km (0.111 R)
• M18: 24,809,012 km (0.072 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.7

Radius: 4.7

Gravity: 0.48 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 7.18 AU - 10.2 AU

Year: 18007 Days

Day: 19 Hours

Environment

Temp: -227 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,734,674 km

• M1: 72,705 km (0.117 R)
• M2: 410,197 km (0.108 R)
• M3: 3,196,009 km (0.095 R)
• M4: 3,349,197 km (0.114 R)
• M5: 4,291,664 km (0.115 R)
• M6: 5,518,965 km (0.118 R)
• M7: 7,279,582 km (0.102 R)
• M8: 9,983,863 km (0.071 R)
• M9: 11,145,341 km (0.119 R)
• M10: 12,519,696 km (0.056 R)
• M11: 16,899,772 km (0.087 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 16,044 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit