🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.22 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.43 AU - 2.43 AU

Year: 1363 Days

Day: 12.1 Hours

Environment

Temp: -79 °C

Axial Tilt: 103.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,959,301 km

• M1: 57,745 km (0.111 R)
• M2: 1,458,729 km (0.118 R)

Planet 2 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.64

Radius: 0.84

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.9 AU - 4.8 AU

Year: 2719 Days

Day: 26.1 Hours

Environment

Temp: -117 °C

Axial Tilt: 39.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,959,301 km

• M1: 20,495 km (0.09 R)

Planet 3 - Terrestrial

Semi-Major Axis: 4.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.63 AU - 5.95 AU

Year: 3773 Days

Day: 26.5 Hours

Environment

Temp: -140 °C

Axial Tilt: 44.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,959,301 km

• M1: 420,370 km (0.028 R)

Asteroid Belt

Center: 5.09 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 5.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240

Radius: 10.9

Gravity: 2.02 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 4.93 AU - 5.85 AU

Year: 4504 Days

Day: 6.2 Hours

Environment

Temp: -130 °C

Axial Tilt: 47 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 75,959,301 km

• M1: 135,685 km (0.094 R)
• M2: 577,747 km (0.109 R)
• M3: 1,094,458 km (0.083 R)
• M4: 1,884,933 km (0.08 R)
• M5: 2,527,157 km (0.104 R)
• M6: 3,275,146 km (0.102 R)
• M7: 3,654,377 km (0.113 R)
• M8: 4,268,177 km (0.101 R)
• M9: 4,655,336 km (0.088 R)
• M10: 5,328,826 km (0.095 R)
• M11: 7,649,687 km (0.1 R)
• M12: 8,587,965 km (0.106 R)
• M13: 9,456,979 km (0.092 R)
• M14: 10,770,598 km (0.076 R)
• M15: 13,757,020 km (0.095 R)
• M16: 14,462,225 km (0.106 R)
• M17: 14,896,956 km (0.117 R)
• M18: 15,240,881 km (0.051 R)
• M19: 16,723,247 km (0.112 R)
• M20: 17,094,997 km (0.087 R)
• M21: 17,910,156 km (0.098 R)
• M22: 18,865,189 km (0.106 R)
• M23: 19,500,980 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.4

Radius: 14.8

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 5.39 AU - 5.47 AU

Year: 4554 Days

Day: 13.1 Hours

Environment

Temp: -132 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 75,959,301 km

• M1: 184,005 km (0.105 R)
• M2: 900,280 km (0.112 R)
• M3: 2,740,783 km (0.026 R)
• M4: 3,583,467 km (0.109 R)
• M5: 5,201,069 km (0.116 R)
• M6: 7,030,801 km (0.114 R)
• M7: 7,594,486 km (0.05 R)
• M8: 8,252,567 km (0.096 R)
• M9: 8,745,791 km (0.071 R)
• M10: 10,344,992 km (0.058 R)
• M11: 11,636,620 km (0.058 R)
• M12: 13,932,349 km (0.09 R)
• M13: 18,835,868 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.6

Radius: 14.4

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 6.13 AU - 8.15 AU

Year: 6866 Days

Day: 5.2 Hours

Environment

Temp: -162 °C

Axial Tilt: 38.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 75,959,301 km

• M1: 179,218 km (0.08 R)
• M2: 962,214 km (0.117 R)
• M3: 1,465,910 km (0.097 R)
• M4: 2,366,489 km (0.077 R)
• M5: 4,120,973 km (0.076 R)
• M6: 4,924,463 km (0.114 R)
• M7: 5,635,202 km (0.077 R)
• M8: 7,328,351 km (0.09 R)
• M9: 9,262,352 km (0.097 R)
• M10: 9,936,291 km (0.039 R)
• M11: 10,728,262 km (0.053 R)
• M12: 12,063,871 km (0.099 R)
• M13: 12,724,047 km (0.117 R)
• M14: 17,559,349 km (0.106 R)
• M15: 23,573,034 km (0.11 R)
• M16: 24,382,209 km (0.116 R)

Planet 7 - Ice Giant

Semi-Major Axis: 18.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 347.4

Radius: 5

Gravity: 13.9 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 17.65 AU - 18.81 AU

Year: 28012 Days

Day: 20.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 75,959,301 km

• M1: 62,233 km (0.044 R)
• M2: 293,511 km (0.051 R)
• M3: 542,741 km (0.101 R)
• M4: 1,657,844 km (0.057 R)
• M5: 3,457,805 km (0.109 R)
• M6: 4,704,255 km (0.092 R)
• M7: 6,054,525 km (0.067 R)
• M8: 11,489,864 km (0.084 R)
• M9: 13,534,269 km (0.1 R)
• M10: 19,958,151 km (0.065 R)
• M11: 20,618,177 km (0.066 R)
• M12: 28,746,278 km (0.085 R)
• M13: 32,081,263 km (0.047 R)
• M14: 36,636,219 km (0.058 R)
• M15: 40,396,960 km (0.093 R)
• M16: 45,854,739 km (0.098 R)
• M17: 48,001,020 km (0.116 R)
• M18: 49,868,450 km (0.067 R)
• M19: 50,040,637 km (0.11 R)
• M20: 52,137,401 km (0.105 R)
• M21: 52,492,397 km (0.098 R)
• M22: 53,028,107 km (0.116 R)
• M23: 53,567,258 km (0.093 R)
• M24: 53,928,836 km (0.12 R)
• M25: 55,391,155 km (0.112 R)
• M26: 57,256,042 km (0.119 R)
• M27: 66,792,308 km (0.057 R)
• M28: 72,816,016 km (0.109 R)

Kuiper Belt

Range: 30.5 - 51.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 512 - 15,837 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit