Almaaz (better known as Epsilon Aurigae) is a yellow-white supergiant star in the constellation Auriga. It has a smaller blue main sequence star companion, dubbed Almaaz B or Epsilon Aurigae B. Almaaz A is a very historically important star, as in 1940 it was crowned as the largest star, with a radius of 2,400 Solar Radii at the time. It is now known to be smaller, with a radius of 358 Solar Radii.
Astronomical data
Radius (in Solar Radii): 358 R☉
Diameter (in Kilometers): 498,336,000 km
Mass (in Solar Masses): 2.2 M☉
Distance (in Light Years): 4,800 ly
Spectral type: F0 Iab (Yellow-White)
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