Wlm_galaxy.jpg (279 × 414像素,文件大小:45 KB,MIME类型:image/jpeg


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描述
English: This photo is a reproduction from a combination of two CCD frames observed with the 3.5-m New Technology Telescope (NTT) and the ESO Multi-Mode Instrument (EMMI). The field covers an area of approx. 7.8 x 11.5 arcmin. In the lower part is seen the WLM dwarf galaxy , fully resolved into individual stars. A few background galaxies that are unrelated to WLM are also visible. At the distance of WLM , about 3 million light years, the field corresponds to a projected area of about 10,000 x 6,000 light years. The frames were observed in the near-infrared I-band and each exposure lasted about 45 minutes. The seeing was about 0.9 arcsec, and the faintest stars that are visible have an I-band magnitude of 24. In this reproduction, North is to the left and East is down.
来源 European Organisation for Astronomical Research in the Southern Hemisphere
作者 ESO
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当前2006年10月14日 (六) 06:492006年10月14日 (六) 06:49版本的缩略图279 × 414(45 KB)JeongAhn국부은하군의 WLM 은하. 영어 위키백과에서 가져옴. 다음과 같은 설명이 있었다. This photo was obtained by the European Southern Observatory (ESO). It may be reproduced, if credit is given to ESO.

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