ZZ Cetus - ZZ Cetus

Japanese: くじら座 ZZ 型星 - くじらざぜっとぜっとがたせい
ZZ Cetus - ZZ Cetus

...Beat is a phenomenon in which the amplitude of vibration increases and decreases regularly. In the case of Beta Cepheus, the beat period is 7 to 50 days. (7) ZZ Ceti This type of star is a pulsating variable star of white dwarf type, and about a dozen have been discovered so far. The pulsation period is about 100 to 1000 seconds, and the range of variation is 0.01 to 0.3 magnitude. ...

From [Pulsating Star]

…Variable Stars [Yoji Ozaki]. . .

*Some of the terminology that refers to "ZZ Ceti" stars is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…うなりというのは，振動の振幅が規則的に大きくなったり小さくなったりする現象で，ケフェウス座β型星の場合，うなりの周期は7～50日である。(7)くじら座ZZ型星　この型の星は，白色矮星（わいせい）の脈動変光星で，現在十数個見つかっている。脈動周期は100～1000秒程度，変光範囲は0.01～0.3等である。…

【脈動星】より

…変光星【尾崎 洋二】。。…

※「くじら座 ZZ 型星」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報

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