十字架一 是一對 雙星，英文固有名稱為 Gacrux 。 主星是紅色的巨星，視星等1.6等，距離地球88光年；伴星距離地球264光年，視星等6.5等。 十字架二 的英文固有名稱為 Acrux，是距離地球321光年的三合星。 肉眼所見0.8等的藍色恆星是一對聯星，視星等分別是1.3等和1.8等，另一顆離得較遠的是5等星。 靠近的兩顆星使用業餘的小望遠鏡就能分辨出來，雙筒望遠鏡可以看見較遠的那顆，而將它們當成雙星。 十字架三 的英文固有名稱為 Mimosa，距離地球353光年，是一 …

Even though it is the smallest of all 88 modern constellations, Crux is among the most easily distinguished as its four main stars each have an apparent visual magnitude brighter than +2.8. It has attained a high level of cultural significance in many Southern Hemisphere states and nations.

4 天之前 · Acrux is the brightest star in Crux and the 13th in the night sky based on the Hipparcos 2007 apparent magnitude. Based on a parallax of 10.13, Acrux distance from Earth can be calculated at being 321.98 light years away or 98.33 parsecs. Acrux is a naked-eye star, so you don't need a telescope or binoculars when you look up on a clear night.

Acrux is the brightest star in the southern constellation of Crux. It has the Bayer designation α Crucis, which is Latinised to Alpha Crucis and abbreviated Alpha Cru or α Cru. With a combined visual magnitude of +0.76, it is the 13th-brightest star in the night sky.

Crux is the 88th largest constellation. It's brightest star is Acrux at magnitude 0.87. The boundary of the Crux constellation contains 3 stars that host known exoplanets. Crux is a circumpolar constellation, so is visible year-round in the Southern hemisphere. Conversely, it is not visible in the opposite hemisphere.

2017年1月9日 · Despite its small size, Crux is also one of the sky’s brightest constellations, with its famous asterism of stars known as the Southern Cross containing two first magnitude stars. As a result, Crux has proved a useful navigational guide for sailors, who would use an imaginary line running through two of its stars, Acrux and Gacrux, to point ...

2021年1月23日 · Bintang Acrux merupakan bintang yang mudah untuk ditebak dan diamati karena bentuknya yang menyerupai layang-layang. bintang Acrux mempunyai magnitudo 0,77 dan merupakan bintang tercerah kedua belas di langit. Berikut ini adalah poto rasi bintang Crux yang berhasil didokumentasikan oleh Tim OIF UMSU di …

Acrux mempunyai magnitudo 0,77, dan merupakan bintang tercerah kedua belas di langit. Bintang ini adalah bintang paling selatan dengan magnitudo pertama, mengalahkan Rigil Kentaurus (α Centauri). Acrux adalah bintang triner yang …

2016年8月24日 · Acrux (ā´krəks) [from the Bayer designation α Crucis], brightest star in the constellation Crux (Southern Cross); 1992 position R.A. 12 h 26.2 m, Dec. -63°04′. Its apparent magnitude of 0.86 makes it one of the 20 brightest stars in the sky, although its location in the far southern sky prevents it from being seen by most observers in ...

2020年12月14日 · Discover the Crux Constellation - exciting facts, major bright stars, detailed star map, bordering constellations, name meaning, visibility, best astrophotography targets inside, and frequently asked questions. All you need to know about the constellation in one place!