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RT Carinae
RT Carinae (HD 303310, HIP 52562, SAO 238424) is a variable star in the constellation Carina. It has an apparent magnitude of +8.55. RT Carinae is a red supergiant with a spectral type of M2I and has a temperature of 3625 K. With a diameter of 1090 times of the Sun, it is one of the largest stars known. The luminosity is estimated between 180,000 and 220,000 times of the Sun, but, on average, it is 200,000. It is cataloged as an irregular variable star, and it has an oscillation period of 201 days. == See also ==
* List of largest stars
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「RT Carinae」の詳細全文を読む
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