2017年12月01日:北美洲星云与鹈鹕星云-(North America and the Pelican)

2017年12月01日:北美洲星云与鹈鹕星云-(North America and the Pelican)

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2017-12-01 / 0 评论 / 0 阅读 / 正在检测是否收录...

2017年12月01日:北美洲星云与鹈鹕星云-(North America and the Pelican)
2017年12月01日:北美洲星云与鹈鹕星云-(North America and the Pelican)--原图下载


Image Credit &Copyright:Paolo Moroni
说明: 美丽地球的拥护者,可能不难认出这些宇宙云的轮廓。在影像左方,边缘镶着黝黑不透光尘埃带的明亮辐射,看似有大陆块的外观,因此这团编录号为NGC 7000的发射星云,拥有北美洲星云的暱称。近在北美洲星云右方的东岸外头,可见到IC 5070,其外观则为它博得鹈鹕星云的称号。这二个距离约1,500光年的明亮星云,同是一个庞大、几乎和猎户座大星云一样邻近的恒星形成区複合体之一部分。在这个距离,这张6度跨幅的广角影像,宽度大约有150光年。这张精心规划的宇宙影像,组合了数幅窄波段影像数据,以突显明亮的电离前沿和原子氢发出的泛红特徵辐射。在幽暗地区巡礼天鹅座时,用双筒望远镜即可在亮星天津四的东北方看到这些星云

原文:

Image Credit &Copyright:Paolo Moroni
Explanation: Fans of our fair planetmight recognize the outlines of thesecosmic clouds.On the left, bright emission outlined by dark, obscuring dust lanesseems to trace a continental shape,lending the popular nameNorthAmerica Nebula to the emission region cataloged as NGC 7000.To the right, just off the North America Nebula's east coast,is IC 5070, whose profile suggests the PelicanNebula. The two bright nebulae are about 1,500 light-years away,part of the same largeand complex star forming region, almost as nearby as thebetter-known Orion Nebula.At that distance, the 6 degree wide field of view would span150 light-years.This carefulcosmic portrait uses narrow band images to highlight the brightionization fronts and the characteristicred glow from atomic hydrogen gas.Thesenebulae can be seen with binoculars from a dark location. Look northeast of bright starDeneb in the constellation of Cygnus the Swan.

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