File:NGC_1345_HST.jpg
維基百科,自由的 encyclopedia
![File:NGC 1345 HST.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/NGC_1345_HST.jpg/800px-NGC_1345_HST.jpg)
原始文件 (3,492 × 1,919像素,文件大小:3.37 MB,MIME类型:image/jpeg)
摘要
描述NGC 1345 HST.jpg |
English: The spiral galaxy NGC 1345 and its loose and ragged arms dominate this rich image from the NASA/ESA Hubble Space Telescope. It is a member of the Eridanus Galaxy Cluster — a group of about 70 galaxies that lies 85 million light-years away in the constellation of Eridanus (the River). This region of the night sky is well populated with bright galaxies, with the Fornax Cluster of galaxies also nearby on the celestial sphere, although the two clusters are actually separated by about 20 million light-years. Collectively, they are known as the Fornax Supercluster or the Southern Supercluster.
John Herschel discovered NGC 1345 in 1835 from South Africa. He described it as small and very faint and it is still far from easy to see it even with quite a large amateur telescope, where it appears as a small, circular fuzz. Apart from the main galaxy that dominates the picture, lots more distant galaxies of many shapes and sizes can be seen in this image, some shining right through the foreground galaxy. NGC 1345 itself features an elongated bar extending from the nucleus and spiral arms that emanate outwards, making it a barred spiral type. Classifying galaxy shapes is an important part of astronomical research as it tells us much about how the Universe has evolved. But computers aren’t really ideal for the task; people are much better at recognising shapes, which is why a citizen-science project called Galaxy Zoo: Hubble is asking members of the public to help sift through the vast archive of images and classify galaxies by type. If you would like to join the cause, there’s a link to the project below. This picture was created from images taken with the Wide Field Channel of Hubble’s Advanced Camera for Surveys. Images taken through a blue filter (F435W) were coloured blue and images through a near-infrared filter (F814W) were coloured red. The exposure times were 17.5 minutes per filter in total and the field of view is 3.2 by 1.6 arcminutes. |
||||
日期 | |||||
来源 | http://www.spacetelescope.org/images/potw1103a/ | ||||
作者 | ESA/Hubble & NASA | ||||
授权 (二次使用本文件) |
|
许可协议
![w:zh:知识共享](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![署名](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- 您可以自由地:
- 共享 – 复制、发行并传播本作品
- 修改 – 改编作品
- 惟须遵守下列条件:
- 署名 – 您必须对作品进行署名,提供授权条款的链接,并说明是否对原始内容进行了更改。您可以用任何合理的方式来署名,但不得以任何方式表明许可人认可您或您的使用。
说明
此文件中描述的项目
描繪內容
17 1 2011
文件历史
点击某个日期/时间查看对应时刻的文件。
日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
---|---|---|---|---|---|
当前 | 2011年1月24日 (一) 13:43 | ![]() | 3,492 × 1,919(3.37 MB) | Jmencisom | {{Information |Description ={{en|1=The spiral galaxy NGC 1345 and its loose and ragged arms dominate this rich image from the NASA/ESA Hubble Space Telescope. It is a member of the Eridanus Galaxy Cluster — a group of about 70 galaxies that lies 85 m |
文件用途
全域文件用途
以下其他wiki使用此文件:
- af.wikipedia.org上的用途
- ar.wikipedia.org上的用途
- az.wikipedia.org上的用途
- be.wikipedia.org上的用途
- bs.wikipedia.org上的用途
- ca.wikipedia.org上的用途
- ce.wikipedia.org上的用途
- de.wikipedia.org上的用途
- diq.wikipedia.org上的用途
- en.wikipedia.org上的用途
- eo.wikipedia.org上的用途
- es.wikipedia.org上的用途
- eu.wikipedia.org上的用途
- fr.wikipedia.org上的用途
- hr.wikipedia.org上的用途
- kk.wikipedia.org上的用途
- ko.wikipedia.org上的用途
- mk.wikipedia.org上的用途
- nl.wikipedia.org上的用途
- pl.wikipedia.org上的用途
- pt.wikipedia.org上的用途
- ru.wikipedia.org上的用途
- sh.wikipedia.org上的用途
- sk.wikipedia.org上的用途
- sr.wikipedia.org上的用途
- tr.wikipedia.org上的用途
- tt.wikipedia.org上的用途
- uk.wikipedia.org上的用途
- uz.wikipedia.org上的用途
- www.wikidata.org上的用途
元数据
此文件中包含有扩展的信息。这些信息可能是由数码相机或扫描仪在创建或数字化过程中所添加。
如果此文件的源文件已经被修改,一些信息在修改后的文件中将不能完全反映出来。
_error | 0 |
---|