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单词 Diphda
释义

Diphda

中文百科

土司空 Beta Ceti

(重定向自Diphda)
Diagram showing star positions and boundaries of the Cetus constellation and its surroundings
钱德拉X射线天文台拍摄的橙色巨星土司空照片

土司空(英语:Deneb KaitosDiphda)是位于鲸鱼座的一颗恒星,又称为鲸鱼座ββ Cet)。虽然编号为β,但是土司空其实是鲸鱼座最明亮的恒星(鲸鱼座α的视星等只有2.54等)。

因为土司空位于夜空中的阴暗角落,所以人们可以很容易的观察到它的位置。土司空的绝对星等为−0.31等,视星等则为2.02等,因为它距离地球仅96.3光年,所以土司空是距离最近的明亮恒星之一。

英语百科

Beta Ceti 土司空

(重定向自Diphda)
Image of orange giant Beta Ceti from NASA's Chandra X-ray Observatory.
Diagram showing star positions and boundaries of the Cetus constellation and its surroundings

Beta Ceti (β Cet, β Ceti) is the brightest star in the constellation Cetus. Although it has the Bayer designation "beta", it is actually brighter than Alpha Ceti. It has the traditional names Deneb Kaitos and Diphda. This orange giant is easy to identify due to its location in an otherwise dark section of the celestial sphere. Based on parallax measurements, it lies at an estimated distance of 96.3 light-years (29.5 parsecs) from Earth.

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更新时间:2025/6/22 2:03:33