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Pi Ceti
Pi Ceti (π Ceti, π Cet) is a Class B7, fourth-magnitude star in the constellation Cetus. Pi Ceti is a blue main-sequence star located about 440 light-years from Earth. It has about 8.1 times the radius of the Sun.〔
==Name==
This star, along with ε Cet, ρ Cet and σ Cet, was Al Sufi's Al Sadr al Ḳaiṭos, the Whale's Breast 〔(Star Name - R.H.Allen p. 160 )〕
According to the catalogue of stars in the ''Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars'', ''Al Sadr al Ḳaiṭos'' were the title for four stars :ρ Cet as ''Al Sadr al Ḳaiṭos I'', σ Cet as ''Al Sadr al Ḳaiṭos II'', ε Cet as ''Al Sadr al Ḳaiṭos III'' and π Cet as ''Al Sadr al Ḳaiṭos IV''〔(Jack W. Rhoads - ''Technical Memorandum 33-507-A Reduced Star Catalog Containing 537 Named Stars'', Jet Propulsion Laboratory, California Institute of Technology; November 15, 1971 )〕
In Chinese, (), meaning ''Celestial Meadows'', refers to an asterism consisting of π Ceti, γ Eridani, π Eridani, δ Eridani, ε Eridani, ζ Eridani, η Eridani, τ1 Eridani, τ2 Eridani, τ3 Eridani, τ4 Eridani, τ5 Eridani, τ6 Eridani, τ7 Eridani, τ8 Eridani and τ9 Eridani.〔 ''中國星座神話'', written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7.〕 Consequently, δ Ceti itself is known as (, (英語:the Seventh Star of Celestial Meadows).)〔 (AEEA (Activities of Exhibition and Education in Astronomy) 天文教育資訊網 2006 年 7 月 12 日 )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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