🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.48 AU - 0.78 AU

Year: 323 Days

Day: 47.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 41,385,790 km

• M1: 35,155 km (0.094 R)
• M2: 108,608 km (0.029 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.9

Radius: 9.6

Gravity: 10.07 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.62 AU - 0.8 AU

Year: 386 Days

Day: 5.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,385,790 km

• M1: 119,379 km (0.043 R)
• M2: 559,496 km (0.074 R)
• M3: 902,823 km (0.038 R)
• M4: 1,202,318 km (0.12 R)
• M5: 1,501,364 km (0.095 R)
• M6: 1,804,300 km (0.092 R)
• M7: 2,139,698 km (0.103 R)
• M8: 2,737,641 km (0.114 R)
• M9: 3,093,235 km (0.082 R)
• M10: 3,395,124 km (0.097 R)
• M11: 4,209,684 km (0.088 R)
• M12: 4,929,100 km (0.063 R)
• M13: 5,359,194 km (0.091 R)
• M14: 5,745,456 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 832.3

Radius: 10.1

Gravity: 8.16 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.73 AU - 0.77 AU

Year: 419 Days

Day: 12 Hours

Environment

Temp: -143 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,385,790 km

• M1: 125,662 km (0.047 R)
• M2: 465,399 km (0.03 R)
• M3: 790,326 km (0.068 R)
• M4: 1,170,753 km (0.06 R)
• M5: 1,498,522 km (0.117 R)
• M6: 2,010,745 km (0.117 R)
• M7: 2,995,847 km (0.092 R)
• M8: 3,423,996 km (0.101 R)
• M9: 3,840,028 km (0.081 R)
• M10: 4,520,249 km (0.116 R)
• M11: 5,181,472 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.8

Radius: 13

Gravity: 3.57 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.21 AU - 1.65 AU

Year: 1104 Days

Day: 12.8 Hours

Environment

Temp: -171 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 41,385,790 km

• M1: 161,715 km (0.076 R)
• M2: 615,745 km (0.114 R)
• M3: 1,755,681 km (0.036 R)
• M4: 2,606,743 km (0.11 R)
• M5: 3,306,562 km (0.085 R)
• M6: 3,856,035 km (0.06 R)
• M7: 4,345,968 km (0.102 R)
• M8: 4,858,789 km (0.083 R)
• M9: 5,313,716 km (0.085 R)
• M10: 5,734,984 km (0.062 R)
• M11: 6,265,757 km (0.091 R)
• M12: 7,040,375 km (0.097 R)
• M13: 7,928,986 km (0.071 R)
• M14: 8,481,002 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.3

Radius: 9

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 2.71 AU - 3.37 AU

Year: 3422 Days

Day: 12.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 41,385,790 km

• M1: 111,899 km (0.089 R)
• M2: 630,705 km (0.037 R)
• M3: 1,051,224 km (0.052 R)
• M4: 1,798,615 km (0.094 R)
• M5: 2,180,838 km (0.103 R)
• M6: 2,864,051 km (0.065 R)
• M7: 3,388,392 km (0.117 R)
• M8: 4,015,356 km (0.113 R)
• M9: 4,388,902 km (0.058 R)
• M10: 5,752,936 km (0.103 R)
• M11: 6,283,111 km (0.103 R)
• M12: 8,006,179 km (0.116 R)
• M13: 8,431,934 km (0.098 R)
• M14: 8,769,726 km (0.054 R)
• M15: 12,706,245 km (0.105 R)
• M16: 14,259,819 km (0.105 R)
• M17: 15,280,525 km (0.057 R)
• M18: 17,088,565 km (0.068 R)
• M19: 18,127,672 km (0.09 R)
• M20: 18,408,018 km (0.07 R)
• M21: 18,805,350 km (0.111 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 227.2

Radius: 6.9

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 6.91 AU - 8.59 AU

Year: 13931 Days

Day: 20.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 41,385,790 km

• M1: 86,318 km (0.116 R)
• M2: 322,683 km (0.099 R)
• M3: 568,921 km (0.116 R)
• M4: 1,439,132 km (0.104 R)
• M5: 2,748,861 km (0.069 R)
• M6: 3,233,857 km (0.107 R)
• M7: 3,556,091 km (0.076 R)
• M8: 4,292,113 km (0.118 R)
• M9: 5,341,841 km (0.085 R)
• M10: 6,882,400 km (0.119 R)
• M11: 7,978,354 km (0.117 R)
• M12: 8,311,807 km (0.12 R)
• M13: 13,360,436 km (0.095 R)
• M14: 15,436,855 km (0.114 R)
• M15: 15,824,313 km (0.1 R)
• M16: 17,370,258 km (0.053 R)
• M17: 17,648,958 km (0.12 R)
• M18: 18,721,126 km (0.03 R)
• M19: 21,710,690 km (0.117 R)
• M20: 22,034,270 km (0.117 R)
• M21: 22,608,277 km (0.057 R)
• M22: 24,477,204 km (0.118 R)
• M23: 27,188,366 km (0.089 R)
• M24: 29,102,919 km (0.099 R)
• M25: 30,093,257 km (0.111 R)
• M26: 34,828,628 km (0.071 R)
• M27: 38,957,081 km (0.025 R)
• M28: 39,434,896 km (0.119 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 13,596 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit