🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.35

Radius: 1.13

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.47 AU - 0.61 AU

Year: 252 Days

Day: 44.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,019,169 km

• M1: 387,608 km (0.029 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 901.6

Radius: 9.9

Gravity: 9.2 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.64 AU - 0.84 AU

Year: 405 Days

Day: 9.3 Hours

Environment

Temp: -152 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,019,169 km

• M1: 123,568 km (0.103 R)
• M2: 453,581 km (0.089 R)
• M3: 832,811 km (0.112 R)
• M4: 1,265,000 km (0.085 R)
• M5: 1,612,067 km (0.071 R)
• M6: 1,973,196 km (0.027 R)
• M7: 2,350,931 km (0.116 R)
• M8: 2,819,022 km (0.12 R)
• M9: 3,253,903 km (0.097 R)
• M10: 3,929,936 km (0.118 R)
• M11: 5,941,130 km (0.106 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624

Radius: 9.8

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 0.61 AU - 0.89 AU

Year: 413 Days

Day: 13.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 45 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,019,169 km

• M1: 121,922 km (0.094 R)
• M2: 446,400 km (0.109 R)
• M3: 876,494 km (0.101 R)
• M4: 1,192,295 km (0.111 R)
• M5: 1,525,300 km (0.068 R)
• M6: 1,936,844 km (0.077 R)
• M7: 2,524,314 km (0.063 R)
• M8: 3,374,629 km (0.097 R)
• M9: 4,240,501 km (0.115 R)
• M10: 5,279,309 km (0.109 R)

Asteroid Belt

Center: 1.01 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.2

Radius: 13.9

Gravity: 1.96 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 1.02 AU - 1.52 AU

Year: 910 Days

Day: 6.5 Hours

Environment

Temp: -180 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 40,019,169 km

• M1: 172,935 km (0.093 R)
• M2: 645,216 km (0.113 R)
• M3: 1,286,242 km (0.109 R)
• M4: 1,722,919 km (0.063 R)
• M5: 2,175,003 km (0.119 R)
• M6: 2,899,955 km (0.034 R)
• M7: 3,403,950 km (0.097 R)
• M8: 5,088,572 km (0.101 R)
• M9: 5,530,932 km (0.114 R)
• M10: 6,493,744 km (0.055 R)
• M11: 7,036,934 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.1

Radius: 11.4

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 1.89 AU - 2.39 AU

Year: 1990 Days

Day: 9.1 Hours

Environment

Temp: -185 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,019,169 km

• M1: 142,118 km (0.103 R)
• M2: 517,160 km (0.083 R)
• M3: 978,968 km (0.046 R)
• M4: 1,336,059 km (0.119 R)
• M5: 1,706,762 km (0.115 R)
• M6: 2,084,946 km (0.111 R)
• M7: 2,797,181 km (0.082 R)
• M8: 3,161,003 km (0.047 R)
• M9: 3,683,399 km (0.083 R)
• M10: 4,344,771 km (0.056 R)
• M11: 5,129,561 km (0.092 R)
• M12: 5,556,215 km (0.102 R)
• M13: 6,373,468 km (0.054 R)
• M14: 7,123,851 km (0.113 R)
• M15: 8,183,153 km (0.088 R)
• M16: 8,934,583 km (0.073 R)
• M17: 10,574,774 km (0.117 R)
• M18: 13,354,901 km (0.037 R)
• M19: 17,899,834 km (0.111 R)
• M20: 18,333,369 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111

Radius: 14

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2.62 AU - 2.84 AU

Year: 2868 Days

Day: 14.9 Hours

Environment

Temp: -200 °C

Axial Tilt: 96.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,019,169 km

• M1: 174,880 km (0.061 R)
• M2: 683,213 km (0.076 R)
• M3: 1,292,077 km (0.111 R)
• M4: 1,965,716 km (0.075 R)
• M5: 2,959,046 km (0.114 R)
• M6: 3,509,865 km (0.063 R)
• M7: 4,078,636 km (0.12 R)
• M8: 5,009,434 km (0.056 R)
• M9: 6,055,423 km (0.108 R)
• M10: 6,642,445 km (0.101 R)
• M11: 7,442,045 km (0.105 R)
• M12: 8,143,210 km (0.113 R)
• M13: 9,292,122 km (0.098 R)
• M14: 10,546,351 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 266.8

Radius: 13

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 3.3 AU - 4.02 AU

Year: 4452 Days

Day: 11.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 40,019,169 km

• M1: 175,030 km (0.095 R)
• M2: 676,182 km (0.047 R)
• M3: 1,203,964 km (0.12 R)
• M4: 1,794,127 km (0.098 R)
• M5: 2,587,894 km (0.057 R)
• M6: 3,193,167 km (0.088 R)
• M7: 4,011,018 km (0.089 R)
• M8: 4,940,769 km (0.079 R)
• M9: 5,346,179 km (0.081 R)
• M10: 6,361,201 km (0.075 R)
• M11: 7,047,406 km (0.067 R)
• M12: 10,069,133 km (0.114 R)
• M13: 10,528,698 km (0.076 R)
• M14: 11,002,175 km (0.098 R)
• M15: 12,552,608 km (0.046 R)
• M16: 13,130,504 km (0.092 R)
• M17: 14,824,251 km (0.118 R)
• M18: 18,871,023 km (0.052 R)
• M19: 19,512,050 km (0.09 R)
• M20: 20,107,450 km (0.06 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.2

Radius: 11.5

Gravity: 7.16 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 5.93 AU - 5.93 AU

Year: 9182 Days

Day: 8.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,019,169 km

• M1: 143,016 km (0.096 R)
• M2: 996,920 km (0.096 R)
• M3: 1,501,215 km (0.096 R)
• M4: 2,969,069 km (0.09 R)
• M5: 4,516,210 km (0.097 R)
• M6: 5,168,158 km (0.08 R)
• M7: 7,547,512 km (0.103 R)
• M8: 11,617,172 km (0.08 R)
• M9: 14,343,593 km (0.112 R)
• M10: 15,959,849 km (0.05 R)
• M11: 18,146,970 km (0.063 R)
• M12: 18,918,596 km (0.095 R)
• M13: 25,801,743 km (0.034 R)
• M14: 26,777,271 km (0.117 R)
• M15: 29,957,871 km (0.106 R)
• M16: 32,699,851 km (0.091 R)
• M17: 41,790,764 km (0.083 R)
• M18: 43,544,499 km (0.029 R)
• M19: 50,295,253 km (0.114 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 130

Radius: 5.4

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 8.76 AU - 9.48 AU

Year: 17512 Days

Day: 19.2 Hours

Environment

Temp: -234 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 40,019,169 km

• M1: 67,768 km (0.065 R)
• M2: 312,061 km (0.114 R)
• M3: 698,921 km (0.113 R)
• M4: 1,596,209 km (0.078 R)
• M5: 2,604,948 km (0.049 R)
• M6: 2,922,694 km (0.118 R)
• M7: 10,787,652 km (0.055 R)
• M8: 11,140,553 km (0.09 R)
• M9: 12,574,000 km (0.099 R)
• M10: 15,166,382 km (0.092 R)
• M11: 15,995,603 km (0.064 R)
• M12: 18,094,162 km (0.117 R)
• M13: 18,953,601 km (0.025 R)
• M14: 24,257,893 km (0.118 R)
• M15: 24,516,249 km (0.1 R)
• M16: 25,478,911 km (0.096 R)
• M17: 27,293,384 km (0.074 R)
• M18: 39,422,928 km (0.068 R)
• M19: 39,660,639 km (0.052 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 - 15,365 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit