Corona R - Corona R

Japanese: かんむり座Ｒ星 - かんむりざあーるせい

In Greek mythology, the crown was placed on the head of Princess Ariadne by the god of wine, Dionysus, to comfort her after she was abandoned on the island of Naxos. To the southeast of ε is the retrograde nova T Coronae Borealis, and in the center of the crown is the irregular variable star R Coronae Borealis. Its approximate position is 15h40m in right ascension and 30° in declination.

From [Hydrogen-poor stars]

…One example is HD 30353, a supergiant with a temperature equivalent to A5, but with a hydrogen content 1/10 ^{5 times} lower than normal and a tendency to have an excess of heavy metals. R Coronae Borealis has a temperature equivalent to F, and not only is it low in hydrogen but also has a large excess of carbon. Other stars have low hydrogen and high helium content. …

*Some of the terminology that mentions "R Corona Borealis" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ギリシア神話ではナクソス島に捨てられた王女アリアドネをなぐさめるために，酒神ディオニュソスがその頭上に載せた黄金の冠という。ε星の南東には，回帰新星かんむり座T星，冠の中央部には不規則変光星のかんむり座R星がある。概略位置は赤経15h40m，赤緯30゜。…