Stars and Dust in Corona Australis 
Image Credit & Copyright: CHART32 Team

Explanation: Cosmic dust clouds and young, energetic stars inhabit this telescopic vista, less than 500 light-years away toward the northern boundary of Corona Australis, the Southern Crown. The dust clouds effectively block light from more distant background stars in the Milky Way. But the striking complex of reflection nebulae cataloged asNGC 6726, 6727, and IC 4812 produce a characteristic blue color as light from the region's young hot stars is reflected by the cosmic dust. The dust also obscures from view stars still in the process of formation. At the left, smaller yellowish nebula NGC 6729 bends around young variable star R Coronae Australis. Just below it, glowing arcs and loops shocked by outflows from embedded newborn stars are identified as Herbig-Haro objects. On the sky this field of view spans about 1 degree. That corresponds to almost 9 light-years at the estimated distance of the nearby star forming region.

南冕座的恒星與塵埃 

這幅由望遠(yuǎn)鏡拍攝的照片顯示的是南冕座的北界附近的景象，其中可以看到大量宇宙塵埃云和年輕的活躍恒星，距離地球不到500光年。塵埃云遮擋了更遠(yuǎn)處的恒星。這一引人注目的復(fù)合體由反射星云NGC 6726、NGC 6727和IC 4812 構(gòu)成，因宇宙塵埃對這一區(qū)域中年輕熾熱恒星的星光反射而呈現(xiàn)出標(biāo)志性的藍(lán)色。塵埃遮擋了仍然處于形成過程中的恒星。左側(cè)較小的黃色星云NGC 6729環(huán)繞著年輕的變星南冕座R。在其下面，受到內(nèi)部新生恒星噴流沖擊的發(fā)亮的弧形和環(huán)形被確認(rèn)為赫比格-阿羅天體。照片對應(yīng)天空中約1°的范圍，在估算的恒星生成區(qū)的距離上相當(dāng)于約9光年的尺度。

高清原圖地址：

https://apod./apod/image/2001/NGC6726_Schedler_3400.jpg

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