Electra / əˈlɛktrə /, [11] designated 17 Tauri, is a blue-white giant star in the constellation of Taurus located approximately 400 light years away. It is the third-brightest star in the Pleiades open star cluster (M45), visible to the naked eye with an apparent magnitude of 3.7.

2020年6月12日 · Electra is the third brightest star in the Pleiades open cluster, located at around 400 light-years away from the Sun. This star has an apparent magnitude of 3.70 and an absolute magnitude of -1.77. Electra is a blue-white giant star of spectral type B6IIIe, thus it has prominent emission lines of hydrogen in its spectrum.

2019年12月23日 · Electra, 17 Tauri (17 Tau), is a giant star of the spectral type B6, located in the constellation Taurus. With an apparent magnitude of 3.70, it is the third brightest member of the Pleiades cluster, one of the brightest and largest open clusters in the sky.

美國 海軍有兩艘軍艦是以昴宿一的英文名Electra命名，它們分別是在1847年服役的一艘三桅帆船和在1941年服役的一艘大角星級武裝貨運船。

2025年1月28日 · Electra is a giant star located in the constellation of Taurus, The Bull. It is not part of the Taurus constellation outline but is within the borders of the constellation. Based on the spectral type (B6III), Electra colour is blue, which means that the star is one of the hottest stars in the Universe, hotter than our star.

Electra, also designated as 17 Tauri , is a double giant star of spectral class B6 in the constellation of Taurus. Electra visual magnitude is 3.7. Because of its moderate brightness, Electra is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Electra is one of the four Pleiades stars that is classed as a giant, one that is starting to expand as the internal hydrogen fuel in the core is exhausted (the leader in this "giant crowd" Alcyone). Stars burn out from the "top down," high mass stars dying first.

Fl. 17 Taurus, Electra, is one of the Pleiades or Seven Sisters, a group of stars on the shoulder of the Bull. This star is clearly visible to the naked eye; yet Electra is the missing Pleiad. There is also another Pleiad, Merope, who is often considered “The Lost Pleiad.”

Electra, designated 17 Tauri, is a blue-white giant star in the constellation of Taurus located approximately 400 light years away. It is the third-brightest star in the Pleiades open star cluster (M45), visible to the naked eye with an apparent magnitude of 3.7.

From Redmond , Electra is visible in the evening sky, becoming accessible around 17:52 (PST), 47° above your eastern horizon, as dusk fades to darkness. It will then reach its highest point in the sky at 20:49, 66° above your southern horizon. It will continue to be observable until around 02:50, when it sinks below 17° above your western horizon.