文件:NGC6357 F9 60.jpg

本预览的尺寸：800 × 533像素。其他分辨率：2,405 × 1,603像素。

原始文件（2,405 × 1,603像素，文件大小：1.04 MB，MIME类型：image/jpeg）

文件说明

源地址:http://panther-observatory.com/gallery/deepsky/doc/NGC6357_F9.htm

原图地址:http://panther-observatory.com/gallery/deepsky/media/NGC6357_F9_60.jpg

此图片为目前找到的全网最高清版本，检索过程使用了百度、Google、Yahoo、Bing、NAVER等搜索引擎。

图片说明原文

About this Image

This image shows the center part of a well known nebula in the tail of Scorpius. Together with the Cats Paw Nebula NGC 6334 the companion NGC 6357 are both very complex H-alpha emission areas. NGC 6357 is forming some of the most massive stars ever discovered. NGC 6357 houses the open star cluster Pismis 24 (below the bright center of the image), home to these tremendously bright and blue stars. The distance to this nebula is approx. 5500 light years. It is the nursery for many hot young stars, that are still obscured by dust clouds.

North is up.

Find a wide view of this area showing NGC6334 and NGC6357 here.

Find a detailed view of this nebula by R. Gendler and M. Pugh here: 1.

Find a Hubble image of the center part here: 2.

Technical Details

Optics	20 " Keller cassegrain in corrected secondary focus at f/9
Mount	Liebscher GEM
Camera	SBIG STL-11000M at -25C, 8-pos STL filter wheel
Filters	Baader RGB
Date	May 03, 2008.
Location	IAS/Hakos Namibia
Sky Conditions	dark skies, raw FWHM 1.3-1.7" temperature 7 C,
Exposure	R:G:B = 30:30:30 minutes (10-minute sub-exposures); H-alpha 30 min (10-minute sub-exposure); synthetic luminance used
Programs used	Maxim DL 4.5; CCDStack; Fitsliberator2; Photoshop CS3

授权协议

本作品仅以介绍为目的在此百科中以非盈利性方式使用，其著作权由原著作权人保留。

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	日期/时间	缩⁠略⁠图	大小	用户	备注
当前	2021年5月26日 (三) 00:09		2,405 × 1,603（1.04 MB）	桂の脌（留言 \| 贡献）	原图地址：http://panther-observatory.com/gallery/deepsky/media/NGC6357_F9_60.jpg源地址:http://panther-observatory.com/gallery/deepsky/doc/NGC6357_F9.htm

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