Thuban

noun

Thu·ban thü-ˈbän How to pronounce Thuban (audio)

astronomy

: a white giant star of the fourth magnitude that is visible in the constellation Draco

Engineers had determined that these standing stones predict solar and lunar events as well as the position of Thuban, the polestar in ancient Phoenician times.

Karen Wright, Discover, February 1998

called also Alpha Draconis

Note: From about 4000 BC through 1800 BC, Thuban was the star closest to the north celestial pole. It was used (instead of Polaris) as the polestar during that time. The movement of the earth has caused it to drift away, but in another 20,000 years, it will once again qualify as the "North Star."

单词	Thuban
释义	Thuban noun Thu·ban thü-ˈbän astronomy : a white giant star of the fourth magnitude that is visible in the constellation Draco Engineers had determined that these standing stones predict solar and lunar events as well as the position of Thuban, the polestar in ancient Phoenician times. Karen Wright, Discover, February 1998 called also Alpha Draconis Note: From about 4000 BC through 1800 BC, Thuban was the star closest to the north celestial pole. It was used (instead of Polaris) as the polestar during that time. The movement of the earth has caused it to drift away, but in another 20,000 years, it will once again qualify as the "North Star." Word History First Known Use 1855, in the meaning defined above
随便看	disanalogies disanchor disanchored disanchoring disanchors disanimate disanimated disanimates disanimating disannex disannul disannulled disannullers disannulling disannulments disannuls disanoint disappear disappear into thin air disappear/vanish into thin air disappearance disappearances disappeared disappearing disappearing bed

Thuban

noun

Word History