🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.13

Radius: 1.58

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 0.47 AU - 0.65 AU

Year: 275 Days

Day: 31.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.49 AU - 0.77 AU

Year: 328 Days

Day: 47.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 40,331,277 km

• M1: 524,939 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 227.9

Radius: 10.5

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.71 AU - 0.91 AU

Year: 478 Days

Day: 14.2 Hours

Environment

Temp: -147 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 40,331,277 km

• M1: 130,599 km (0.116 R)
• M2: 512,373 km (0.099 R)
• M3: 920,924 km (0.109 R)
• M4: 1,269,787 km (0.115 R)
• M5: 1,643,632 km (0.08 R)
• M6: 2,239,630 km (0.116 R)
• M7: 2,812,141 km (0.079 R)
• M8: 3,153,822 km (0.117 R)
• M9: 3,645,551 km (0.113 R)
• M10: 3,993,216 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 661.5

Radius: 13.5

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.77 AU - 2.95 AU

Year: 2378 Days

Day: 5.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,331,277 km

• M1: 167,849 km (0.111 R)
• M2: 664,215 km (0.117 R)
• M3: 1,269,936 km (0.117 R)
• M4: 1,734,438 km (0.044 R)
• M5: 2,326,995 km (0.09 R)
• M6: 2,760,530 km (0.05 R)
• M7: 3,452,569 km (0.064 R)
• M8: 4,118,729 km (0.08 R)
• M9: 4,673,587 km (0.104 R)
• M10: 5,587,480 km (0.115 R)
• M11: 6,190,958 km (0.095 R)
• M12: 6,617,163 km (0.082 R)
• M13: 7,588,801 km (0.118 R)
• M14: 8,523,189 km (0.111 R)
• M15: 9,085,827 km (0.047 R)
• M16: 12,198,061 km (0.062 R)
• M17: 13,086,223 km (0.093 R)
• M18: 14,153,604 km (0.11 R)
• M19: 16,360,622 km (0.088 R)
• M20: 16,817,942 km (0.085 R)
• M21: 17,388,359 km (0.041 R)
• M22: 18,187,212 km (0.041 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 502.8

Radius: 11.6

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.17 AU - 3.29 AU

Year: 2959 Days

Day: 6.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 40,331,277 km

• M1: 144,212 km (0.08 R)
• M2: 540,497 km (0.069 R)
• M3: 1,063,342 km (0.11 R)
• M4: 1,963,023 km (0.064 R)
• M5: 3,939,810 km (0.102 R)
• M6: 5,748,149 km (0.106 R)
• M7: 6,215,642 km (0.105 R)
• M8: 7,197,752 km (0.096 R)
• M9: 8,312,705 km (0.078 R)
• M10: 10,011,090 km (0.117 R)
• M11: 12,520,295 km (0.05 R)
• M12: 14,128,771 km (0.109 R)
• M13: 15,870,988 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937

Radius: 9.1

Gravity: 11.32 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 4.34 AU - 4.98 AU

Year: 6599 Days

Day: 6.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 40,331,277 km

• M1: 113,246 km (0.094 R)
• M2: 397,781 km (0.114 R)
• M3: 1,468,453 km (0.049 R)
• M4: 1,867,281 km (0.115 R)
• M5: 2,217,190 km (0.113 R)
• M6: 2,610,632 km (0.101 R)
• M7: 3,378,219 km (0.098 R)
• M8: 4,235,714 km (0.059 R)
• M9: 5,479,620 km (0.063 R)
• M10: 7,290,203 km (0.11 R)
• M11: 7,600,619 km (0.046 R)
• M12: 9,152,398 km (0.116 R)
• M13: 9,698,280 km (0.096 R)
• M14: 11,107,193 km (0.043 R)
• M15: 11,570,947 km (0.093 R)
• M16: 12,317,889 km (0.079 R)
• M17: 13,039,998 km (0.118 R)
• M18: 13,325,131 km (0.115 R)
• M19: 14,026,596 km (0.098 R)
• M20: 16,476,709 km (0.102 R)
• M21: 17,559,648 km (0.083 R)
• M22: 21,965,156 km (0.095 R)
• M23: 25,783,492 km (0.118 R)
• M24: 26,233,333 km (0.052 R)
• M25: 29,530,021 km (0.082 R)
• M26: 29,923,613 km (0.046 R)
• M27: 32,567,307 km (0.055 R)
• M28: 33,198,909 km (0.102 R)
• M29: 36,479,590 km (0.081 R)
• M30: 40,210,711 km (0.069 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 314 - 17,800 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit