The brightest star is the magnitude 2.2 Alpha Coronae Borealis. The yellow supergiant R Coronae Borealis is the prototype of a rare class of giant stars -- the R Coronae Borealis variables -- that are extremely hydrogen deficient, and thought to result from the merger of two white dwarfs. T Coronae Borealis, also known as the Blaze Star, is another unusual type of variable star known as a recurrent nova. Normally of magnitude 10, it last flared up to magnitude 2 in 1946. ADS 9731 and Sigma Coronae Borealis are multiple star systems with six and five components respectively. Five star systems have been found to have Jupiter - sized exoplanets. Abell 2065 is a highly concentrated galaxy cluster one billion light - years from the Solar System containing more than 400 members, and is itself part of the larger Corona Borealis Supercluster.
what is the brightest star in corona borealis
the magnitude 2.2 Alpha Coronae Borealis