另眼系列之牡丹星云的闪亮恒星
来源:斯必泽空间望远镜网站。
http://www.spitzer.caltech.edu/Media/releases/ssc2008-13/ssc2008-13a.shtml
'Peony Nebula' Star Settles for Silver Medal
If our galaxy, the Milky Way, were to host its own version of the Olympics, the title for the brightest known star would go to a massive star called Eta Carina. However, a new runner-up -- now the second-brightest star in our galaxy -- has been discovered in the galaxy's dusty and frenzied interior. This image from NASA's Spitzer Space Telescope shows the new silver medalist, circled in the inset above, in the central region of our Milky Way.
Dubbed the 'Peony nebula' star, this blazing ball of gas shines with the equivalent light of 3.2 million suns. The reigning champ, Eta Carina, produces the equivalent of 4.7 million suns worth of light -- though astronomers say these estimates are uncertain, and it's possible that the Peony nebula star could be even brighter than Eta Carina.
If the Peony star is so bright, why doesn't it stand out more in this view? The answer is dust. This star is located in a very dusty region jam packed with stars. In fact, there could be other super bright stars still hidden deep in the stellar crowd. Spitzer's infrared eyes allowed it to pierce the dust and assess the Peony nebula star's true brightness. Likewise, infrared data from the European Southern Observatory's New Technology Telescope in Chile were integral in calculating the Peony nebula star's luminosity.
The Peony nebula, which surrounds the Peony nebular star, is the reddish cloud of dust in and around the white circle.
This is a three-color composite showing infrared observations from two Spitzer instruments. Blue represents 3.6-micron light and green shows light of 8 microns, both captured by Spitzer's infrared array camera. Red is 24-micron light detected by Spitzer's multiband imaging photometer.
http://ipac.jpl.nasa.gov/media_images/ssc2008-13a_medium.jpg
想看大图的可以点击以下网址:
http://ipac.jpl.nasa.gov/media_images/ssc2008-13a.jpg
[ 本帖最后由 寻找拉玛 于 2008-7-26 22:13 编辑 ] 来源:斯必泽空间望远镜网站。
http://www.spitzer.caltech.edu/Media/releases/ssc2008-13/ssc2008-13a.shtml
http://ipac.jpl.nasa.gov/media_images/ssc2008-13b_medium.jpg
51.6 MB( 8000x4500) 的超酷巨图:
http://ipac.jpl.nasa.gov/media_images/ssc2008-13b.jpg
去掉头尾的复制网址即可打开观看。
[ 本帖最后由 寻找拉玛 于 2008-7-16 21:13 编辑 ] 50多兆的大图啊！::070821_11.jpg:: 慢慢下载…… 第一张图花了几分钟才下载完毕，第二张图更加庞大，正在慢慢下载。
http://pic.yupoo.com/ochre/826205e17ed2/vswfd25f.jpg 下了一个多钟头啊！第二张大图终于下载完毕了！::070821_13.jpg:: 休息去了。::42::
http://pic.yupoo.com/ochre/217285e1912b/2ebt6bmc.jpg
[ 本帖最后由 VIVAVIVA 于 2008-7-17 00:01 编辑 ] 楼上的冥王星和木卫之类的艺术图哪里找到的? 那些图片也是在本版中下载的，具体哪个帖子记不清了。 昔有玫瑰，今有牡丹::070821_13.jpg:: 玫瑰星云、蔷薇星云，现在又来了一个牡丹星云…… 太空花园。。。 强大!::070821_09.jpg::
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